THE SWEDISH OSTEOARTHRITIS REGISTRY. TRENDS IN SWEDISH OSTEOARTHRITIS HEALTH CARE BETWEEN 2008- 2021

BackgroundIn 2012 the Swedish national guidelines for osteoarthritis (OA) were published. The guidelines implicit that all patients with OA should obtain information and supervised exercise as first-line intervention and that OA is a clinical, not radiological diagnosis. The Swedish OA registry contains data which measure compliance to the guidelines since 2008 [2].ObjectivesTo describe the trends over time from 2008 to 2021 for patients who have received first-line interventions for hip and knee OA in Sweden and adherence of the healthcare staff to the national guidelines.MethodsDescriptive registry-based study including patients with hip or knee OA who participated in first-line interventions including education and exercise. Data were extracted from the Swedish OA registry between January 1st, 2008, and December 31, 2021. The registry contains patient-reported outcomes and physiotherapist-reported outcomes. In this study the following physiotherapist-reported outcomes were described over time: radiological examination before first-line intervention, if the first-line intervention was given the first time the patient seek health care caused of OA, which explanation patients had been given about their disease, intake of painkillers before the start of first-line intervention and the percent who got supervised exercise >10 times according to the guidelines of OA in Sweden. The following patient-reported outcomes were described over time: mean BMI at the first visit, and mean age at the first visit. To be included in the study, participants had to meet the following criteria: i) clinical diagnosis of OA, with hip or knee OA as the most symptomatic joint, ii) provided 3-month follow-up.ResultsA total of 175 764 participants with hip or knee OA were included in the study.The trends from 2008-2021 showed that the proportion of patients who had a radiological examination before entering the first-line intervention decreased from 97 % to 65 % in men and from 95% to 62 % in women. The proportion of patients who get assess to first-line intervention the first time they seek for their symptoms increased from 4 % to 10 % both in men and women. People that get the correct information about OA increased from 15% to 40 %, and patients that get the explanation that OA was a tear and wear disease decreased from 30 % to 5%. The mean BMI (28) is unchanged over time. The mean age increased from 64 years to 67 years between 2008-2020 but decreased during the covid-19 pandemic to 64 years. The percentage that was given supervised exercise more than 10 times was constant between 2012-2020 at 30 % but decreased during the covid-19 pandemic to 20%.ConclusionThe results implicit that the implementation of a supported OA self-management program in Sweden has been successful and changed the care given to patients with OA in Sweden. However, the national guidelines for OA, have still not been fully implemented. We need to keep implementing the guidelines so all patients with OA get the first-line intervention at the right time.References[1]Anon. (2012). Nationella riktlinjer för rörelseorganens sjukdomar 2012 - stöd för styrning och ledning. Socialstyrelsen.[2]Thorstensson CA, Garellick G, Rystedt H, Dahlberg LE. Better Management of Patients with Osteoarthritis: Development and Nationwide Implementation of an Evidence-Based Supported Osteoarthritis Self-Management Programme. Musculoskeletal Care. 2015 Jun;13(2):67-75. doi: 10.1002/msc.1085. Epub 2014 Oct 24. PMID: 25345913.Acknowledgements:NIL.Disclosure of InterestsNone Declared.

Comparison of Comorbidities between Adults and Children with Glycogen Storage Disease Type Ia (GSDIA)

Objectives: Glycogen Storage Disease Type Ia (GSDIa) is a rare inherited disorder resulting in acute hypoglycemia due to impaired release of glucose from glycogen. Despite dietary management practices to prevent hypoglycemia in patients with GSDIa, complications still occur in children and throughout adulthood. This retrospective cohort study compared the prevalence of complications in adults and children with GSDIa. Method(s): Using ICD-10 diagnosis codes, the IQVIA Pharmetrics Plus database was searched for patients with >=2 GSDI claims (E74.01) from January 2016 through February 2020, with >=12 months continuous enrollment beginning prior to March 2019 (for one year of follow-up before COVID-19), and no inflammatory bowel disease diagnoses (indicative of GSDIb). Complication prevalence in adults and children with GSDIa was summarized descriptively. Result(s): In total, 557 patients with GSDIa were identified (adults, 67%;male, 63%), including 372 adults (median age, 41 years) and 185 children (median age, 7 years). Complications occurring only in adults were atherosclerotic heart disease (8.6%), pulmonary hypertension (3.0%), primary liver cancer (1.9%), dialysis (0.8%), and focal segmental glomerulosclerosis (0.3%). Other complications with the greatest prevalence in adults/children included gout (11.8%/0.5%), insomnia (10.0%/1.1%), osteoarthritis (22.0%/2.7%), severe chronic kidney disease (4.3%/0.5%), malignant neoplasm (10.8%/1.6%), hypertension (49.7%/8.7%), acute kidney failure (15.3%/2.7%), pancreatitis (3.0%/0.5%), gallstones (7.8%/1.6%), benign neoplasm (37.4%/8.1%), hepatocellular adenoma (7.0%/1.6%), neoplasm (41.1%/9.7%), and hyperlipidemia (45.2%/10.8%). Complications with the greatest prevalence in children/adults included poor growth (22.2%/1.9%), gastrostomy (29.7%/3.2%), kidney hypertrophy (2.7%/0.8%), seizure (1.6%/0.5%), hypoglycemia (27.0%/11.3%), hepatomegaly (28.7%/15.9%), kidney transplant (1.6%/1.1%), diarrhea (26.5%/18.6%), nausea and/or vomiting (43.8%/35.8%), acidosis (20.0%/17.2%), and anemia due to enzyme disorders (43.8%/40.6%). Conclusion(s): GSDIa is associated with numerous, potentially serious complications. Compared with children, adults with GSDIa had a greater prevalence of chronic complications, potentially indicating the progressive nature of disease. Children with GSDIa had more acute complications related to suboptimal metabolic control.Copyright © 2023

REFERRAL BEHAVIOUR OF PRIMARY CARE DOCTORS TO RHEUMATOLOGY CLINIC IN MALAYSIA

BackgroundThe workload at rheumatology clinics have been growing relentlessly and an audit on new.referrals helps to identify referral behaviour of primary care doctors and improvement can be done by providing further training.ObjectivesTo audit on new referral cases to rheumatology clinic from 2020-2022 and to identify new cases with misdiagnosis for future training purpose.MethodsThis was a retrospective study. The medical records of all new referral to rheumatology clinic Hospital Sultan Ismail and Hospital Pakar Sultanah Fatimah from 1st January 2020 to 31th November 2022 were reviewed. The referral diagnosis and final diagnosis were identified and analysed.ResultsThere were total of 927 new cases referral throughout the 35 months during Covid-19pandemic. Majority of them were diagnosed to have rheumatoid arthritis (217/927)followed by systemic lupus erythematosus (190/927), psoriatic arthritis (147/927),gout (62/927), osteoarthritis (58/927), systemic sclerosis (25/927), ankylosing spondylitis (25/927), soft tissue rheumatism (24/927), Sjogren syndrome (24/927),mixed connective tissue disease (14/927), vasculitis (11/927), fibromyalgia (10/927),polymyositis (7/927) and miscellaneous (39/927).45 out of the new cases were diagnosed as unlikely rheumatic diseases. There were 29pending cases awaiting final diagnosis.212 of the referrals were identified as misdiagnosis with the highest as nodal osteoarthritis.(55/212) followed by unlikely rheumatic disease (43/212), soft tissue rheumatism (24/212),psoriatic arthritis (20/212), Sjogren syndrome (14/212), gout (8/212), rheumatoid arthritis (7/212), fibromyalgia (6/212), systemic lupus erythematosus (5/212), ankylosing spondylitis (4/212), mixed connective tissue disease (3/212), systemic sclerosis (2/212), polymyositis (2/212) and others (19/212): diffuse idiopathic skeletal hyperostosis, hypermobility syndrome, RS3PE syndrome, idiopathic uveitis, graft versus host disease, juvenile idiopathic arthritis, antiphospholipid syndrome, hypothyroidism, post streptococcal arthritis, prolapsed intervertebral disc, cerebrovascular disease, traumatic sternoclavicular joint subluxation, ledderhose disease, paraspinal muscle spasm and viral myalgia).ConclusionNodal osteoarthritis and soft tissue rheumatism can be great mimicker for inflammatory.arthritis and if wrongly diagnosed will lead to unnecessary anxiety or wrong treatment. More training is needed to improve clinical skills amongst primary care doctors.ReferencesNA.Acknowledgements:NIL.Disclosure of InterestsNone Declared.

COVID-19 OUTCOME IN AN ITALIAN RHEUMATOID ARTHRITIS COHORT

BackgroundIt is known that rheumatologic patients often present a course of COVID-19 similar to that of the general population. Some factors are linked to a worse COVID-19 outcome, such as moderate glucocorticoid (GC) dose, high body mass index (BMI), and comorbidities.ObjectivesTo describe the outcome of COVID-19 in patients with rheumatoid arthritis (RA) in terms of symptoms, therapy and need for hospitalization compared to a control group. Also, to evaluate the variation in disease activity before and after COVID-19.MethodsIn this monocentric prospective study, we recruited consecutive adult patients with RA classified according to ACR-EULAR 2010 criteria who received a diagnosis of COVID-19 through molecular or rapid antigen swab tests between September 2020 and December 2022. Demographic and clinical data, including age, BMI, smoking habit, comorbidities, treatment at the diagnosis of COVID-19, duration of COVID-19, symptoms related to the infection and therapy required, together with the vaccination status were collected through a self-administered questionnaire. We compared DAS28-CRP before the infection and at the first visit after the resolution. As controls (Cs), individuals with COVID-19 but with no referred diagnosis of rheumatic/autoimmune disease were recruited.ResultsWe enrolled 111 patients affected by RA (males 15%, median age 56 years, IQR 25) and 89 Cs (males 44%, median age 47 years, IQR 43), whose demographic and clinical characteristics are reported in Table 1. The median RA disease duration was 108 months (IQR 201). At the COVID-19 diagnosis, 62 patients (56%) were assuming csDMARDs, 67 (60%) bDMARDs, and 18 (16%) GC with a median prednisone equivalent dose of 4 mg/day (IQR 1). DAS28-CRP was available for 62 patients, with a median value of 1.67 (IQR 2.71);42 patients (60%) were in remission (Figure 1). Before developing COVID-19, only 35 (32%) RA patients and 42 (47%) Cs had completed the vaccinal cycle, which was performed by mRNA vaccine in all the patients and 87% of Cs. The median COVID-19 duration was 18 days (IQR 18) for RA patients and 14 days (IQR 13.5) for Cs (p>0.7). Cs reported a significantly higher frequency of constitutional symptoms (headache and asthenia) compared to RA patients (p<0.00001). When hospitalization was required, RA patients received heparin more frequently than Cs (p<0.039). Once COVID-19 was resolved, RA patients were evaluated after a median of 2 months (IQR 2). DAS28-CRP was available for 68 patients, with a median value of 1.61 (IQR 1.77);42 patients (68%) were in remission (Figure 1).No differences in terms of COVID-19 duration, clinical manifestations, and therapy emerged comparing RA patients in remission (40;58%) with patients with the active disease before COVID-19 (29;42%). Also, in vaccinated subjects, the outcome of COVID-19 was similar in RA patients and Cs, irrespective of RA activity.ConclusionCOVID-19's impact on patients with RA was not significantly different from the general population, even for patients with active RA. Patients did not suffer from reactivation of RA because of COVID-19. In our opinion, these positive results could be ascribed to the massive vaccination campaign.References[1]Conway R et al, Ir J Med Sci. 2023[2]Andersen KM et al, Lancet Rheumatol. 2022Table 1.Clinical characteristics, COVID-19 symptoms, and therapy of the two groups. Values in brackets are expressed as percentages unless specified. Musculoskeletal diseases: osteoarthritis and osteoporosis.Rheumatoid arthritis N=111Controls N=89P value*ACTIVE SMOKERS13 (12)20 (22)BMI (IQR)24 (7)23(6)COMORBIDITIES64 (58)44 (49)Cardiovascular26 (23)18 (20)Endocrine24 (22)14 (16)Musculoskeletal11 (10)6 (7)Neoplastic12 (11)3 (3)CLINICAL MANIFESTATIONS96 (86)74 (83)Fever50 (45)47 (53)Constitutional symptoms52 (47)75 (84)p <0.00001Respiratory symptoms100 (90)86 (97)Gastrointestinal symptoms12 (11)13 (15)THERAPY88 (79)74 (67)NSAIDs41 (37)31 (35)Glucocorticoids24 (22)21 (30)Antibiotics33 (30)27 (24)Oxygen6 (5)5 (6)Heparin8 (7)0 (0)p <0.039HOSPITALIZATION10 (9)6 (9)*Where not indi ated, p value >0.5Acknowledgements:NIL.Disclosure of InterestsNone Declared.

RHEUMATOLOGISTS BEWARE OF LOW ALP: A CASE OF HYPOPHOSPHATASIA MISDIAGNOSED AS FIBROMYALGIA, CAUSING LONG DIAGNOSTIC DELAY

BackgroundHypophosphatasia(HPP), a rare, inherited metabolic disease featuring low serum alkaline phosphatase (ALP) activity due to ALPL (encoding tissue non-specific alkaline phosphatase) gene mutation[1,2]. A wide-ranging clinical spectrum is often seen due to defective mineralisation affecting teeth, bones, joints and muscles[1]. This disease has a prevalence of 1/6370 in Europe and is often misdiagnosed and underdiagnosed with a diagnostic delay of more than ten years[1] The treatment is often supportive for milder cases and enzyme replacement therapy in severe cases.ObjectivesTo share this case to raise awareness among Rheumatologists.MethodsThis 58-year-old Caucasian female had her first HPP symptom as early eruption of deciduous teeth, along with recurrent dental infections and gum problems. She was diagnosed with flat feet at age five, had a big toe fracture at sixteen, followed by a metatarsal fracture. She experienced leg muscle cramps and aches, affecting her performance in sport during school life.At the age of thirty she began noticing weakness in arms and legs, which progressed over the years. She faced significant early morning stiffness along with painful ribs, hips, knees, shoulders, and small joints of feet when walking.She was diagnosed with Fibromyalgia at the age of forty-four. The following ten years she met numerous specialists including rheumatologist, pain specialist and physiotherapists. She was also diagnosed with early osteoarthritis, pernicious anaemia, hyperlipidemia, functional neurological syndrome, and central sensitization syndrome. She had multiple trials of steroids and opioids, all of which were stopped either due to side effects or inefficiency.A major flare of symptoms five years ago rendered her bedbound for three months, following which a chemical pathologist noticed a persistent low ALP levels and decided to investigate for HPP. It took another four years to complete these investigations due to the coronavirus pandemic.Currently, she is unable to weight bear or climb stairs and must stay indoors or in bed during flareup. She moved into a ground floor flat at the age of 54 and use a walking stick occasionally. By 58, she is unable to work and had given up her own business due to pain, weakness, and disability.ResultsOn clinical assessment, her height is 160 cm, faced difficulty getting up from chair, has an antalgic waddling gait, with a 6-minute walking distance of 60 metre, stopped after three minutes, and had a Brief Pain Inventory pain severity score of 7/10. Her ALP level is 24 U/L and PLP/PA ratio is 18.8 (ref < 5), and genetic testing showed heterozygous missense variant of ALPL gene mutation.ConclusionIt took more than forty years to reach a conclusive diagnosis of childhood onset HPP. Low ALP level is a signature of HPP and warrants investigations. Diagnosis can be challenging due to the rareness and variable presentation, however recognition of HPP features is crucial for timely referral, optimal disease management and potential improvement in quality of life.References[1]Högler W, Langman C, Gomes da Silva H, Fang S, Linglart A, Ozono K, Petryk A, Rockman-Greenberg C, Seefried L, Kishnani PS. Diagnostic delay is common among patients with hypophosphatasia: initial findings from a longitudinal, prospective, global registry. BMC Musculoskelet Disord. 2019 Feb 14;20(1):80. doi:10.1186/s12891-019- 2420-8. PMID: 30764793;PMCID: PMC6376686.[2]Injean P, Lee S, Downey C. Hypophosphatasia May Be Misdiagnosed as Fibromyalgia: A Single Center Experience []. Arthritis Rheumatol. 2020;72 (suppl 10). https://acrs.org//hypophosphatasia-may-be-misdiagnosed-as- ibromyalgia-a-single-center-experience/. Accessed January 14, 2023.[3]Lefever E, Witters P, Gielen E, Vanclooster A, Meersseman W, Morava E, Cassiman D, Laurent MR. Hypophosphatasia in Adults: Clinical Spectrum and Its Association With Genetics and Metabolic Substrates. J Clin Densitom. 2020 Jul-Sep;23(3):340- 48. doi: 10.1016/j.jocd.2018.12.006. Epub 2018 Dec 21. PMID: 30655187.Acknowledgements:N L.Disclosure of InterestsNone Declared.

FREQUENCY OF VACCINE-RELATED ADVERSE EVENTS IN PATIENTS WITH RHEUMATIC DISEASE

BackgroundPatients with rheumatic diseases are at greater risk of developing serious infections due to dysregulation of the immune system and the use of immunosuppressants1. Therefore, preventing infection is crucial, with vaccination being the most important primary prevention intervention, leading to a lower rate of hospital admissions due to infections. However, vaccine hesitancy among persons with rheumatic diseases is widespread due to concerns regarding the safety of vaccines2.ObjectivesDescribe the frequency of adverse events associated with vaccination in patients with rheumatic diseases.MethodsObservational, descriptive, cross-sectional and retrospective study was carried out in patients with rheumatic diseases from the Rheumatology Department of the Hospital Regional 1° de Octubre ISSSTE, from February to May 2022;it included patients over 18 years of age with an established diagnosis of rheumatic disease who had received a vaccine;the researcher applied the vaccine-associated adverse events survey to those patients who agreed to participate by signing the informed consent. The sample size was of 95 patients. Descriptive statistics and summary measures were employed for analysis. We used the chi-square test or Fisher's exact test (when <5) for the comparative analysis of the frequencies of nominal qualitative variables. P<0.05 was considered significant.ResultsThe survey was applied to 115 patients. 85.2% were women;mean age 57.9 years;61.7% had rheumatoid arthritis (RA), followed by systemic lupus erythematosus (SLE) in 13.9%. 55.6% of the patients were treated with steroids, 52.2% received bDMARDs and 48.7% csDMARDs. Patients received various vaccines, of which the most frequent was the one for COVID-19, with 99.1% of included patients having received at least one dose, followed by influenza in 30.4%. 78% of the patients who received at least one dose of a vaccine against COVID-19 presented ≥1 adverse events. The disease in which the highest frequency of adverse events occurred was RA, without this difference being statistically significant (Table 1). The adverse events according to the type of COVID-19 vaccine were the following: Sputnik-V 80%, Pfizer 76.6% and AstraZeneca 76.1%, without statistically significant difference between vaccine types. The most frequently occurring adverse events were injection site pain (80.1%), headache (30.7%), and fatigue (30.7%);In addition, the main vaccine-associated musculoskeletal symptoms were joint pain, myalgia, and morning joint stiffness (Figure 1), which on most cases improved after a NSAID use. Joint pain was more frequent after the second dose of certain vaccine types.Table 1.Frequency of AE after COVID-19 vaccination in patients according to disease.AE (%)pRA560.790SLE140.326Spondyloarthritis40.068Osteoarthritis60.614ConclusionVaccination-associated AE occurred more frequently than reported in international studies;however, they were not more serious. Providing this information to patients is important to improve vaccine acceptance. In addition, the administration of NSAID after the application of the vaccine could be proposed to reduce the presence of side effects.References[1]Rotondo, Cinzia, et. al. Preliminary Data on Post Market Safety Profiles of COVID 19 Vaccines in Rheumatic Diseases: Assessments on Various Vaccines in Use, Different Rheumatic Disease Subtypes, and Immunosuppressive Therapies: A Two-Centers Study. Vaccines, 2021;9(7):730-440.[2]Furer, Victoria, et. al. 2019 update of EULAR recommendations for vaccination in adult patients with autoimmune inflammatory rheumatic diseases. Ann Rheum Dis 2020;79:39–52.AcknowledgementsTo the residents and staff at HR 1 Octubre for their help in compilating data.Disclosure of InterestsDaniel Xavier Xibille Friedmann Speakers bureau: GSK, Lilly, UCB, Paid instructor for: GSK, Lilly, UCB, Consultant of: GSK, Lilly, UCB, Vanessa Balderas Reyes: None declared, María Olvera: None declared, María Alcocer León: None declared, ALFREDO ALEXANDRI REYES SALINAS Paid instructor for: Abbvie, Janssen, ovartis, Minerva Rodríguez Falcón: None declared, Sandra Miriam Carrillo Vazquez Speakers bureau: Abbvie, Janssen, UCB, Paid instructor for: Abbvie, Janssen, UCB, Consultant of: Abbvie, Janssen, UCB.

Myocardial infarction at night . . . and other stories

Body weight and fat content are known to influence the timing of puberty but the association remained after adjustment for pre-pubertal body mass index. [...]a large retrospective study from the US finds that patients who underwent plasma exchange spent a week longer in hospital and were two to three times more likely to die than those who received immunoglobulin (Muscle Nerve doi:10.1002/mus.26831). A case study in NEJM Catalyst identifies early testing (particularly of people arriving from places where the disease was prevalent), rapid mobilisation of microbiological laboratories, and a coherent and consistent national strategy as crucial interventions.

Identification of 3 key genes as novel diagnostic and therapeutic targets for OA and COVID-19.

Background: Corona Virus Disease 2019 (COVID-19) and Osteoarthritis (OA) are diseases that seriously affect the physical and mental health and life quality of patients, particularly elderly patients. However, the association between COVID-19 and osteoarthritis at the genetic level has not been investigated. This study is intended to analyze the pathogenesis shared by OA and COVID-19 and to identify drugs that could be used to treat SARS-CoV-2-infected OA patients. Methods: The four datasets of OA and COVID-19 (GSE114007, GSE55235, GSE147507, and GSE17111) used for the analysis in this paper were obtained from the GEO database. Common genes of OA and COVID-19 were identified through Weighted Gene Co-Expression Network Analysis (WGCNA) and differential gene expression analysis. The least absolute shrinkage and selection operator (LASSO) algorithm was used to screen key genes, which were analyzed for expression patterns by single-cell analysis. Finally, drug prediction and molecular docking were carried out using the Drug Signatures Database (DSigDB) and AutoDockTools. Results: Firstly, WGCNA identified a total of 26 genes common between OA and COVID-19, and functional analysis of the common genes revealed the common pathological processes and molecular changes between OA and COVID-19 are mainly related to immune dysfunction. In addition, we screened 3 key genes, DDIT3, MAFF, and PNRC1, and uncovered that key genes are possibly involved in the pathogenesis of OA and COVID-19 through high expression in neutrophils. Finally, we established a regulatory network of common genes between OA and COVID-19, and the free energy of binding estimation was used to identify suitable medicines for the treatment of OA patients infected with SARS-CoV-2. Conclusion: In the present study, we succeeded in identifying 3 key genes, DDIT3, MAFF, and PNRC1, which are possibly involved in the development of both OA and COVID-19 and have high diagnostic value for OA and COVID-19. In addition, niclosamide, ciclopirox, and ticlopidine were found to be potentially useful for the treatment of OA patients infected with SARS-CoV-2.

Plasma Levels of MMPs and TIMP-1 in Patients with Osteoarthritis After Recovery from COVID-19.

BACKGROUND: Matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPS) play a key role in the pathogenesis of osteoarthritis (OA). Recent research showed the involvement of some MMPs in COVID-19, but the results are limited and contradictory. OBJECTIVE: In this study, we investigated the levels of MMPs (MMP-1, MMP-2, MMP-3, MMP-8, MMP-9, MMP-10) and TIMP-1 in the plasma of patients with OA after recovery from COVID- 19. METHODS: The experiment involved patients aged 39 to 80 diagnosed with knee OA. All study participants were divided into three research groups: the control group included healthy individuals, the group OA included patients with enrolled cases of OA, and the third group of OA and COVID-19 included patients with OA who recovered from COVID-19 6-9 months ago. The levels of MMPs and TIMP-1 were measured in plasma by enzyme-linked immunosorbent assay. RESULTS: The study showed a change in the levels of MMPs in patients with OA who had COVID- 19 and those who did not have a history of SARS-CoV-2 infection. Particularly, patients with OA who were infected with coronavirus established an increase in MMP-2, MMP-3, MMP-8, and MMP-9, compared to healthy controls. Compared to normal subjects, a significant decrease in MMP-10 and TIMP-1 was established in both groups of patients with OA and convalescent COVID-19. CONCLUSION: Thus, the results suggest that COVID-19 can affect the proteolysis-antiproteolysis system even after a long postinfectious state and may cause complications of existing musculoskeletal pathologies.

[Impact of the COVID-19 Pandemic on Health-Related Quality of Life in Older Adults With Preoperative Knee Osteoarthritis].

BACKGROUND: Knee osteoarthritis is prevalent in older adults worldwide. Quality of life was negatively affected by the COVID-19 pandemic. PURPOSE: This study was designed to examine osteoarthritis severity and health-related quality of life (QOL) in older adults with knee osteoarthritis before total knee replacement during the COVID-19 pandemic and to identify the related predictors of QOL. METHODS: This cross-sectional correlation study involved convenience sampling in the orthopedic ward of a regional teaching hospital in central Taiwan from June 2020 to June 2021 using the Western Ontario and McMaster Universities Arthritis Index and the SF-36v2 Health Survey. The data were analyzed using Pearson's correlation coefficient analysis, independent samples t test, and one-way analysis of variance to determine correlations among demographic variables, osteoarthritis severity, and QOL. The predictors of QOL were examined using stepwise multiple linear regression analysis. RESULTS: A total of 60 older adults diagnosed with knee osteoarthritis were sampled. The average age was 70 years and the average osteoarthritis severity score was 70.45. Being male, having comorbidities, and having a relatively high level of monthly disposable income were associated with poorer QOL. Moreover, more severe knee pain, stiffness, and physical dysfunction were associated with better psychological QOL. CONCLUSIONS / IMPLICATIONS FOR PRACTICE: During the COVID-19 pandemic, the severity of knee osteoarthritis affects preoperative quality of life in older adults. Clinicians should detect signs of pain and physical dysfunction in these patients in advance and intervene in a timely manner to improve their QOL before surgery.

Girft in Action: Advanced Practice Physiotherapist and Advanced Practice Nurse Expertise Provides Valuable Triage and Assessment Clinics for Non-Urgent Rheumatology Referrals

Background/Aims Rheumatology referrals classified as non-urgent/routine are commonly non-inflammatory conditions or medically non-urgent and can have significant waiting times for appointments. These waits were further escalated by the COVID-19 pandemic. Early intervention for noninflammatory conditions can be crucial to good outcomes and long wait-times can have significant adverse impacts while appropriate care pathways are determined. Recent UK GIRFT recommendations include using non-medical health professional expertise in assessment and management pathways to support right place, right time, right care. This study evaluated effectiveness, impacts and patient experiences of Advanced Practice Physiotherapist (APP) and Advanced Practice Nurse (APN) Triage and Assessment Clinics for routine new referrals. Methods The non-urgent/routine referral waiting list was e-triaged by a Rheumatology APP and APN supported by clinical record searches. Patients were contacted by telephone to update on clinical status and appointment requirements determined. Triage criteria were applied to determine new referrals suitable for APP and APN Rheumatology clinics, which included low likelihood of inflammatory disease or new referrals for known diagnosis/stable conditions. Clinics were undertaken with collocated Consultant clinical supervision. Assessment findings were discussed and management agreed, or seen if needed. With waiting list attrition, clinics were expanded to include Consultantdetermined stable condition reviews and follow-up reviews for nonsuspected inflammatory disease. Results At 01 July 2021, 214 new routine referrals were waiting a Consultant appointment (n=103 over 2yrs). Since service initiation, clinic outcomes to date include: 69% (n=243/358) new routine referrals discharged to GP or directed to right pathway with information, advice and self-management resources;8% (n=29) escalated to urgent;3% (11/358) with medical complexity remained on Consultant waitlist. Most common presentations seen included: Osteoarthritis (general or hand);Back and other spinal pain;Fibromyalgia;Persistent Fatigue and Widespread Pain;JHS/hEDS;Positive ANA without clinical features;Musculoskeletal conditions- other. To date, no patients have been re-referred and 329 new patient and 89 follow-up Consultant direct consultations have been spared. There is currently no wait-time for non-urgent/routine appointments. Patient experience feedback on the service has offered a 100% recommendation to continue and expressed highly positive experiences with the MDT approach. Patients value the breadth of expertise and care support, and the timely, thorough and professional service provided. Conclusion Rheumatology non-urgent/routine new referrals with low probability of underlying autoimmune conditions may be effectively and efficiently managed in a collaborative model using an advanced practice physiotherapist and nurse. This innovation has expanded a traditionally medical pathway to an MDT model utilising value-adding nonmedical expertise in service delivery. It has enhanced interdisciplinary learning and is a valued, collaborative approach to patient care. The initiative provides support to GIRFT recommendations of using an MDT skill-set to support improved patient access, service efficiencies and earlier intervention.

Intestinal microbiota, pain, dementia

The review is dedicated the interconnection between neurodegenerative diseases, chronic pain and gut microbiota's structure and function. The gut microbiota's role in gut-brain axis, neuroimmune interaction is considered. The modern data about gut dysbiosis in Alzheimer disease, Parkinson disease, osteoarthrosis, neuropathic pain in COVID infection, muscular-skeletal pain in fibromyalgia, irritable bowel syndrome et cetera are provided. The gut microbiota's modification by means of pre and probiotics in combination with medicines and diet modification can be used for the treatment of chronic pain and dementia.Copyright © T.M. MANEVICH.

Behaviour and Feedback of Patients with Gonarthrosis or Coxarthrosis Receiving Teletherapeutic Treatment - A Qualitative Video AnEine qualitative Videoanalysealysis

Background As a result of the corona pandemic, the implementation of physiotherapy as teletherapy was initially permitted for a limited period of time and subsequently approved for an unlimited period of time. Patients with gonarthrosis and coxarthrosis can be a target group.Aim To explore the behavior and feedback of patients with gonarthrosis and coxarthrosis, including patients who have had endoprosthetic treatment, during teletherapeutic treatments using screencasts.Method Patients with gonarthrosis or coxarthrosis, possibly after endoprosthetic treatment, received 6 treatment sessions including 5 by teletherapy. Participants completed the Musculoskeletal and Joint Health Questionnaire (MSK-HQ) and the Western Ontario and McMaster Universities Arthritis Index (WOMAC). The first and last treatment sessions were videotaped and thereafter transcribed. Coding of the text passages was deductively content-analytic.Results 5 patients were included (2 m, 3w;56 to 78 years;3 gonarthrosis, 2 coxarthrosis;of those 2 with endoprosthesis). The behavior and patients' perspectives were assigned to the main categories of person-related factors, treatment characteristics, point of view or environment-related factors, each with 2-5 subcategories. The evaluation showed a thoroughly positive attitude towards teletherapy. This despite initial doubts and lack of knowledge about the method. Factors such as framework conditions, technology, personal motivation and compliance, as well as the relationship between patient and therapist, were found to influence the patients' attitude towards this method. A mixed therapy design consisting of teletherapy and conventional methods received a preferred resonance. For all participants, a clinically relevant improvement of the WOMAC was observed (7-47 points;improvement MSK-HQ 1-13 points).Conclusion The behavior of the participants shows that a sound planned teletherapy can be well implemented in practice. The description of the patient perspective provides researchers and practitioners with information that can be used for the further development of teletherapeutic treatment concepts for patients with gonarthrosis or coxarthrosis as well as for patients with musculoskeletal complaints in general.

Shoulder Weakness Following Intramuscular COVID- 19 Vaccine

History: Transient and generalized adverse effects are common following COVID-19 vaccination;among other adverse effects, shoulder injuries related to vaccine administration (SIRVA) have been known to occur. In this case, a previously healthy right-hand dominant 62-year-old male presented with left shoulder pain and weakness 3 months after receiving a COVID-19 intramuscular vaccine in the left deltoid. Approximately 2 weeks after the injection, he started experiencing pain and numbness around the injection site along with ipsilateral shoulder weakness. Despite conservative management with Motrin, Medrol Dosepak, gabapentin and physical therapy (PT), the pain and weakness persisted. Physical Exam: Left Shoulder-No calor or erythema;significant atrophy of the anterior and middle deltoid muscle relative to right side;abduction 4/5;external rotation with shoulder adducted 4/5;range of motion for active forward flexion was 150 degrees and passive was 170 degrees;passive range of motion for external rotation was 70 degrees;internal rotation to the level of L5;sensation to light touch was intact. Right Shoulder-Range of motion, strength, and sensation were intact. Cervical Spine-Full ROM;no cervical paraspinal tenderness noted. Negative Spurling's and Lhermitte's tests. Differential Diagnosis: 161. Axillary Nerve Palsy 2/2 Chemical Neurotoxicity 162. Brachial Neuritis 163. Mechanical Axillary Nerve Palsy 2/2 Vaccination 164. Partial-Tear of Left Supraspinatus Tendon 165. Acromioclavicular Osteoarthritis Test Results: Left Shoulder-XR:Mild pseudo-subluxation;MRI w/o contrast: 8x9mmpartial-thickness articular surface tear of the distal supraspinatus tendon (<50%fiber thickness). Minimal subacromial bursitis. Mild acromioclavicular joint osteoarthritis. EMG/NCV: Left and Right Axillary Motor Nerves: prolonged distal onset latency;Left Deltoid: increased insertion activity, moderately increased spontaneous activity, reduced recruitment;Remaining LUE muscles without evidence of electrical instability Final Diagnosis: Axillary Nerve Palsy Secondary To Chemical Neurotoxicity from Intramuscular COVID-19 Vaccine. Discussion(s): We postulate that the neurologic deficits presented in our case may be attributed to chemical neurotoxicity to the axillary nerve following vaccination as the delayed onset of pain and weakness are most consistent with this differential. There are several cases of brachial neuritis following vaccination for the prevention of COVID- 19, however, EMG/NCV results in our patient were not consistent with brachial plexopathy. Additionally, while there have been a handful of reported cases of bursitis following COVID-19 vaccines falling under the SIRVA classification of injuries, this is the first case of reported axillary nerve neurapraxia. Outcome(s): The patient's left shoulder numbness and pain improved with PT and medical management. While mild improvement in strength was noted, weakness and atrophy persisted even on the third follow up visit 6 months after the initial appointment. He was counseled on his injury and was recommended to undergo repeat EMG testing to document recovery after his 6-month follow-up appointment. Follow-Up: The patient did not follow-up for a repeatEMG after his 6-month follow-up appointment. At that time, the patient was clinically stable, tolerating PT, and expecting recovery of his deltoid function.

Beyond Articular Cartilage: A Systematic Review of the Extracellular Matrix in Other Components of the Osteoarthritic Joint

Background/Aims Traditionally viewed from the perspective of cartilage degeneration, osteoarthritis is increasingly seen as a disease of global joint dysfunction. Connective tissue extracellular matrix (ECM) is a crucial determinant of joint mechanobiology, providing cells with scaffolding, topographical cues, and a reservoir of soluble factors. While ECM dysregulation has been extensively studied in osteoarthritic cartilage, it remains poorly defined in other joint tissues. Here, we systematically review the composition, architecture, and remodelling of non-cartilage soft joint tissue ECM in human osteoarthritis and animal disease models. Methods A systematic search strategy was run through the MEDLINE, EMBASE and Scopus databases on 30 October 2020 and repeated on 1 October 2021. The search criteria included disease nomenclature, relevant tissues, as well as structural ECM components and architectural features. All papers were independently screened by two reviewers on the Covidence platform according to predefined eligibility criteria. Relevant clinical, demographic, and biological data were extracted from included studies, which were assessed for bias using the OHAT Risk of Bias Rating Tool for Human and Animal Studies. Results 148 of 8,156 identified studies met all eligibility criteria. 113 papers evaluated human osteoarthritis;of 35 animal studies, the most frequently used models involved surgical joint destabilisation in small mammals. ECM was best defined in menisci, ligaments, and synovium;fewer papers assessed skeletal muscles, tendons, and fat pads. Compared to the healthy joint, osteoarthritis is associated with qualitative and quantitative alterations in structural ECM components, most notably collagens and proteoglycans. In recent years, whole proteome sequencing has been employed to address these changes systematically. The mechanical properties of ECM change significantly in osteoarthritis in response to post-translational modifications, extensive calcification, and the marked loss of matrix organisation across the joint. Notably, some aspects of ECM remodelling in these tissues appear to precede discernible cartilage dysregulation. Similar ECM dysregulation is also observed in animal models, although intermodel variability in arthritogenic precipitant and the range of reported outcomes make comparisons difficult. Many studies are limited by significant bias, notably in the infrequent reporting of investigator blinding, and in the poor demographic matching of osteoarthritic and control patients. Encouragingly, the quality of methodology reporting and use of age-matched control populations have improved in recent years. Conclusion Current data provide compelling evidence of whole joint ECM changes in osteoarthritis and importantly suggest that these changes occur early in the disease process. How ECM dysfunction affects the behaviour of tissue-resident cells remains less well understood. Our work will support the design of disease-relevant biomaterials used to model osteoarthritis in vitro, helping to address this issue, by more accurately recreating the extracellular environment. Furthermore, the development of imaging modalities sensitive to connective tissue ECM changes warrants investigation from both diagnostic and prognostic perspectives.

Feasibility of a pain informed movement program for people with symptomatic knee osteoarthritis

Purpose: Disability in knee osteoarthritis (KOA) is known to be largely due to pain, the mechanism of which is complex and multidimensional with alterations in nociceptive processing in the peripheral and central nervous system (CNS) leading to persistent pain. Current clinical practice guidelines for KOA provide strong recommendations for education and exercise including land-based or mind-body approaches. However, individually these strategies are only moderately effective. One potential reason for this is a lack of understanding of their underlying mechanisms and how their combination might impact nervous system modulation. Neuromuscular exercise is known to improve lower extremity strength. Mind-body approaches as well as pain neuroscience education (PNE) are uniquely positioned to potentially reverse CNS adaptations by inducing positive neuroplastic changes and improving descending modulation of pain resulting in decreased pain. To our knowledge, neuromuscular exercise, mind-body techniques, and PNE have not been studied in combination. We therefore aimed to establish the feasibility of an intervention consisting of these three elements referred to as Pain Informed Movement (PIM). The results of this study will inform necessary modifications for a two-arm pilot randomized controlled trial (RCT). Method(s): This study was a single-arm feasibility trial with a nested qualitative component and the primary feasibility outcome of complete follow up. Inclusion criteria: age >= 40 years, KOA clinical diagnosis or people fulfilling the NICE diagnostic criteria, and average pain intensity >=3/10 on the numeric pain rating scale. PIM consisted of twice weekly in-person exercise sessions and a third home exercise session for 8 weeks. In addition, PNE, provided as online videos, covered the following topics: purpose of pain, neurophysiological changes associated with pain, movement guidelines when pain persists, mind-body techniques to impact neurophysiology and support moving with ease that included breath awareness and regulation, muscle tension regulation, awareness of pain related thoughts and emotions, and relaxation. The mind-body techniques and the PNE topics were implemented during the group exercise sessions that included evidence-based neuromuscular exercises aimed at improving sensorimotor control and functionality of the knee joint. Participants completed questionnaires and in-person assessments at baseline and at program completion. Assessments included weight and height, chair stands as a measure of functional leg strength, and conditioned pain modulation to assess efficiency of the descending modulatory pathways. Participants also had their blood drawn to monitor changes in brain derived neurotrophic factor (BDNF), a marker of neuroplasticity. Questionnaires included the Pain Catastrophizing Scale, Hospital Anxiety and Depression Scale, the Knee Injury and Osteoarthritis Outcome Score - function and pain subscales, Chronic Pain Self Efficacy scale, pain intensity rated in the past 24 hours, the past week, and worst pain in the past 24 hours. Secondary feasibility outcomes included acceptability of the intervention, burden of assessments, recruitment rate, compliance rate, adherence rate, and self-reported adverse events. Feasibility findings were evaluated against a-priori success criteria. In the qualitative component, participants were invited to an online focus group and were asked about their experience and perceptions of the program. Interview recordings were analyzed using thematic content analysis to identify suggestions for program modification. Result(s): In total, 19 participants (mean age 63.3 years (SD 10.5), 73% female) were enrolled, with a complete follow up rate of 74% (n=14) for our primary objective, indicating that modifications would be needed to proceed. Of the 5 dropouts, only one was study related. We will be adding additional inclusion criteria of: ability to get up and down from the floor independently, and no use of mobility aids. Adherence to in-person treatment sessions was 91%, hich indicates proceeding with the protocol for the next phase (i.e., pilot RCT). Some absences were due to unmodifiable factors (e.g., COVID-19). We will make protocol amendments for the purpose of improving the adherence rate to include 'no planned absences'. All other success criteria were met: recruitment rate, compliance to exercise sessions, program acceptability, duration, frequency, and delivery, likelihood of recommending the program to others and taking the program again, burden, and adverse events (Table 1). Analysis of the focus groups revealed that the video content pertaining to the mind-body techniques would benefit from on screen demonstrations by the instructor to assist with participants' execution of breath and muscle tension regulation. The majority of participants improved in most of the physical assessment outcomes and questionnaires (Table 2). Conclusion(s): The PIM program is feasible, acceptable, not burdensome, does not cause adverse events, and had an excellent compliance rate. Minor modifications are needed to optimize enrolment and adherence rates. Although improvements in pain, function, and psychological measures were observed, the feasibility nature of this study precludes any conclusions regarding efficacy. A pilot two-arm RCT will be conducted to establish the feasibility and explore potential effects of PIM when compared to conventional neuromuscular exercise and standard OA education. [Formula presented] [Formula presented]Copyright © 2023

One-year outcomes following rehabilitation for chronic hip-related groin pain: ancillary analysis of a pilot randomized clinical trial

Purpose: Rehabilitation to address modifiable factors associated with chronic hip-related groin pain (CHRGP) may lead to reduced pain and improved function, yet little is known about its effectiveness. We assessed the preliminary effects of two interventions that target two distinct mechanisms, sensory disturbances and abnormal movement patterns. Sensory disturbances such as peripheral and central sensitization may contribute to pain persistence long after initial injury. Joint mobilization (JtMob) may impart a neurophysiological response within the nervous system that results in pain reduction and improved mobility. Abnormal movement patterns may create altered mechanical stresses on hip joint structures, resulting in pain and activity limitations. Movement pattern training (MoveTrain) may improve movement patterns and thus patient function. Method(s): Patients with CHRGP, 18-40, were enrolled. Assessments included self-report questionnaires, clinical exam, and quantitative sensory testing. Outcomes included the Hip disability and Osteoarthritis Outcome Score (HOOS), a patient-reported outcome;frontal plane kinematics of hip, pelvis, and trunk during single leg squat;and pain pressure threshold (PPT) assessed at the anterior groin of the most bothersome hip and dominant thenar eminence (local and generalized pressure hypersensitivity, respectively). Patients were randomized to JtMob or MoveTrain in a 1:1 ratio stratified by sex and HOOS Symptoms. Treatment for both groups included 10 individualized visits over 12 weeks with a trained physical therapist (PT);assessment of patient goals and education which focused on patient-specific tasks reported by the patient to be symptom-producing;instruction in a home exercise program (HEP);and handouts that provided education, description and benefits of assigned treatment and instructions for HEP. The key element of JtMob was PT-provided manual techniques using specific criteria to determine the joint mobilization techniques and parameters used for each patient. The patient's symptom report to each technique was monitored and if indicated, the technique modified according to our outlined procedures. The HEP included flexibility exercises. The key element of MoveTrain was task-specific instruction to correct abnormal movement patterns displayed during daily and patient-specific tasks. For example, hip adduction was minimized during a step descent. The HEP included repeated practice of modified tasks. Task difficulty was progressed based on each patient's performance. Immediately after treatment completion, patients returned for follow up assessment. To assess treatment sustainability after the active treatment phase, we collected HOOS at 6 and 12 months (extended follow-up), and kinematics and PPT at 12 months. Data from patients who provided any data after baseline were analyzed with a repeated measures analysis of variance (RM-ANOVA) with baseline value as a covariate, patient as a random effect, and an autoregressive covariance structure. After adjusting for baseline, the between-group difference in change from post-treatment to each extended follow-up results from pre-planned statistical contrasts in a RM-ANOVA that includes main effects for treatment group, visit and the group by visit interaction. The within-group treatment effect at each extended follow-up was calculated by subtracting the earlier time point from the later follow-up within each treatment group. Dependent samples t-tests were used to assess the degree of within-group change. Result(s): Demographics and outcome data are provided in Tables 1 and 2, respectively. Thirty-three patients with CHRGP were randomized and 29 (88%) provided post-treatment data. Four patients did not complete treatment or post-treatment testing (3 due to COVID pandemic, 1 lost to follow up);6 patients did not complete 12 month laboratory testing (due to pandemic), but did complete 12 month questionnaires. Previously, we reported that both groups reported clinically important improvements in HOOS subscales and MoveTrain group improved hip and pelvis kinematics immediately after treatment compared to baseline. After adjusting for baseline, there were no between-group differences in change in outcomes between post-treatment and extended follow-up when comparing JtMob and MoveTrain, indicating that treatment effects immediately post-treatment were maintained at 12 months after treatment completion. Conclusion(s): Our preliminary findings suggest that 12 weeks of JtMob or MoveTrain, may result in improvements in patient-reported pain and function and these effects may persist 12 months after treatment completion. A future, larger trial to definitively assess the efficacy of JtMob and MoveTrain and identify factors associated with long-term outcomes will improve our ability to develop treatment strategies for people with CHRGP. [Formula presented] [Formula presented]Copyright © 2023

Risk Factors Related to the Death of Admitted COVID-19 Patients: A Buffalo Study

Background: Coronavirus disease 2019 (COVID-19) may result in a severe acute respiratory syndrome that leads to a worldwide pandemic. Despite the increasing understanding of COVID-19 disease, the mortality rate of hospitalized COVID-19 patients remains high. Objective(s): To investigate the risk factors related to the mortality of admitted COVID-19 patients during the peak of the epidemic from August 2021 to October 2021 in Vietnam. Method(s): This is a prospective cohort study performed at the Hospital for Rehabilitation-Professional diseases. The baseline and demographic data, medical history, clinical examination, the laboratory results were recorded for patients admitted to the hospital with confirmed COVID-19. A radiologist and a pulmonologist will read the chest radiographs on admission and calculate the Brixia scores to classify the severity of lung abnormalities. Patients were followed up until beingrecovered or their death. Comparison of clinical and subclinical characteristics between recovery and death groups to find out risk factors related to the death of COVID-19 patients Results: Among 104 admitted COVID-19 patients, men accounted for 42.3%, average age of 61.7 +/- 13.7. The most common symptoms were fever 76.9%, breathlessness 74%, and fatigue 53.8%. The majority (84.6%) of the study population had at least one co-morbidity, including hypertension (53.8%), diabetes (25.9%), gastritis (19.2%), ischemic heart disease (15.4) %), stroke (9.6%) and osteoarthritis (9.6%). The rate of mild and moderate COVID-19 is 13.4%, severe 32.7%, and critical 40.4%. There are 88 inpatients (84.6%) who needed respiratory support. The median hospital stay was 13 days (IQR 10-17.75 days). The rate of intubated patients with mechanical ventilation was 31.7%. The overall mortality rate was 29.8%. Risk factors related to death included Brixia scores > 9, Urea > 7 mmol/L, Ferrtin > 578 ng/ml, Failure to get vaccinated, Age > 60 years, and Low Oxygen SpO2 < 87% (BUFFALO). Conclusion(s): The main result of the study is the independent risk factors related to the death of admitted COVID-19 patients including Brixia scores > 9, Urea > 7 mmol/L, Ferrtin > 578 ng/ml, Failure to get vaccinated, Age > 60 years, and Low Oxygen SpO2 < 87% ((BUFFALO) which suggests that these COVID-19 patients should be closely followed up.Copyright © 2023 Hanha et al.

42nd Scientific Meeting of the German Society for Magnesium Research

The proceedings contain 23 papers. The topics discussed include: Mg and skeletal system: a link to osteoporosis and osteoarthritis;a putative impact of IL-6 on the expression of magnesiotropic genes through the activation of the JAK/STAT3 pathway;magnesium in pain therapy - historical notes and current aspects;Alzheimer's-associated variant rs708727 might be connected to dementia in Parkinson's disease;effect of magnesium citrate supplementation on the brain tissue of patients with Miyoshi dysferlinopathy measured by 31P magnetic resonance spectroscopy;clinical status of magnesium implants;Ionized magnesium: update 2022;magnesium in the treatment of selected types of muscular dystrophy;magnesium speciation analysis in blood serum;epigenetically-induced modulation of the HPA axis might improve resilience to chronic stress;magnesium status in patients with fibromyalgia syndrome;and post-covid-syndrome and transient microvascular pathology in pulse-wave-analysis - association with Mg/Ca ratio and magnesium therapy-options.

Racial Disparities in Elective Total Knee and Hip Replacement Surgeries during the Covid-19 Pandemic: A Retrospective Study of a Diverse Population in Washington State

Purpose of Study: Total knee (TKA) and hip (THA) arthroplasty procedures are recognized as effective treatments for osteoarthritis of the knee and hip joints which are the leading causes of lower extremity disability among older adults. Previous studies have demonstrated a variance in patients electing to undergo these interventions with non-White patients having significantly lower utilization rates. Our study examined if these disparities continued to exist during the COVID-19 pandemic period. Methods Used: This retrospective cohort study included 580 patients who underwent TKA or THA in 2020 and 2021 in a racially diverse region in Washington State. Demographic data, comorbidities, and post-surgical outcomes were recorded. Patients were stratified as those identifying as White (n=490, 84.5%) or Hispanic/ Latino (n=65, 11.2%). Patients identifying with other races (n=25, 4.3%) were excluded from the study due to small sample sizes. Differences between our two groups were examined using a chi-square test for categorical variables and an independent t-test for continuous variables. The level of significance was set at P < 0.05. Summary of Results: Compared to the White patients, Hispanic/ Latino identifying patients were younger (61.9+/-12.79 years versus 68.58+/-9.00 years;P <0.001), had lower Charlson Comorbidity Index scores (P=0.019), and were more likely to use non-Medicare or Medicaid insurance (P <0.001). No differences were observed in postoperative complication (P=0.632) and COVID-19 infection (P=0.465) rates between the groups. Conclusion(s): Although Hispanic/ Latino identifying patients in this region constitute 45.8% of our study population according to the most recent census tabulation, they accounted for only 11.2% of the patients in our study. These patients were also younger, had fewer comorbidities, and tended to use non-Medicare or Medicaid insurance suggesting an exclusive Hispanic/ Latino patient population electing to undergo TKA or THA procedures during the COVID-19 pandemic. Future studies controlling for osteoarthritis risk factors and patients' election of treatment options may explain these disparities we have observed.