Prevalence of chondromalacia patella according to patella type and patellofemoral geometry: a retrospective study

Abstract BACKGROUND: The relationships between the morphometric structure of the patellofemoral joint, patella type and chondromalacia patella are still a matter of debate. OBJECTIVE: To identify the prevalence of chondromalacia patella by determining the patella type and making patellofemoral morphometric measurements. DESIGN AND SETTING: Retrospective cohort study in an orthopedics and traumatology clinic in Turkey, conducted between June 2017 and November 2019. METHODS: This study involved 562 knees of 522 patients with anterior knee pain (246 males and 316 females; mean age 46.59 years). The patients were grouped according to presence of chondromalacia patella (group I) or absence of chondromalacia patella (group II). The patella type, lateral trochlear inclination, medial trochlear inclination, trochlear angle, sulcus angle, patellar tilt and Insall-Salvati index were assessed. Group comparisons were made using chi-square tests or Student t tests. The r value was used to determine the magnitude of relationships between pairs of variables. RESULTS: Among the 562 knees evaluated, 265 (50.71%) presented type I patella, 195 (36.7%) type II, 100 (12.3%) type III and 2 (0.3%) type IV. Group I consisted of 448 knees and group II consisted of 114 knees. Significant differences were found between the groups in terms of age, gender, patella type and lateral inclination angles (P < 0.05). CONCLUSION: Detecting the patella type and making lateral inclination measurements in patients with anterior knee pain are of great importance for diagnosing suspected chondromalacia patella, particularly in the early degenerative period.

Prevalence of Pain Conditions in Type 2 Diabetes Mellitus patient: A Cross Sectional Study

Background: Type-2 Diabetes mellitus (T2DM) is a metabolic disease characterized by hyperglycemia and may causes long term organs dysfunctions like retinopathy, nephropathy, neuropathy, cardiovascular and autonomic dysfunction. Musculoskeletal and nervous system can also be affected by T2DM resulting pain, dysfunctions and disabilities. Objectives: This study is to find the prevalence of different pain conditions in patients with T2DM.Material & Methods:The study was conducted in public and private hospitals of four cities (Brahmanbaria, Dhaka, Gazipur and Faridpur) of Bangladesh from 1st April to 31st September, 2021. The patients of type II diabetes mellitus with both gender and age above 40 were included, and patients with other active systemic disease of bones and soft tissues were excluded. A self-structured questionnaire was developed. The questionnaire was distributed among 500 patients, out of whom 450 patients responded. The non-probability convenient sampling technique was used for data collection. The data was analyzed by SPSS and percentages were calculated to estimate the musculoskeletal complications in patients with T2DM.Results:The result showed high prevalence of pain conditions in T2DM patients. Older age groups of 61-65 (24%) years suffering from T2DM for more than 3 years having higher bloodsugar level 17-19 mmol/L with positive family history of DM were affected mostly. The prevalence of musculoskeletal pain condition in T2DM was 71.11%, while the low back pain was (42.88%), frozen shoulder was 31.33%, diabetic neuropathy was (26.89%) were the most common musculoskeletal problems, followed by knee pain (17.33%). Conclusions:It is concluded that the prevalence of different pain conditions are high among patients of T2DM and low back pain, shoulder pain, peripheral neuropathy and knee pain are common. These are mostly manageable conservatively.

Translation to Filipino and validation of the Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire for patellar tendinopathy

BACKGROUND@#Patellar tendinopathy is an overuse injury characterized by pain on the distal part of the patella caused by specific movement patterns like jumping. To assess the severity of patellar tendinopathy, the self-administered VISA-P questionnaire was developed in the English language. The purpose of this study was to translate and cross-culturally adapt the VISA-P questionnaire into Filipino and determine its psychometric properties.@*METHODS@#A psychometric study design was used in this study. The VISA-P was translated from English to Filipino following the guidelines set by Beaton et al. and Sousa et al. There were six stages: (1) forward translation to Filipino, (2) synthesis, (3) backward translation, (4) expert committee review, (5) pilot testing/cognitive briefing, and (6) preliminary psychometric testing. The psychometric testing was conducted on eight patients with patellar tendinopathy and eight healthy subjects.@*RESULTS@#The Filipino VISA-P questionnaire (VISA-P-Fil) successfully underwent translation and cross-cultural adaptation. It exhibited excellent face, content validity (Item-Content Validity index and Scale-Content Validity Index= 1.00), construct validity (p>0.05, except for Item 6), internal consistency (Cronbach α= 0.81) as well as reliability (ICC= 0.99; 95% CI: 0.994 – 0.999; SEM= 0.42; minimum detectable change at 95% confidence level= 1.79). No ceiling and floor effects were noted for the VISA-PFil.@*CONCLUSION@#In conclusion, the VISA-P-Fil questionnaire was translated and cross-culturally adapted successfully with good validity. Preliminary testing also showed its excellent reliability.

Knee subchondroplasty for management of subchondral bone cysts: a novel treatment method

Knee subchondroplasty (SCP) is one of the most novel minimally invasive methods for treating bone marrow lesions. The literature suggests that it is safe, with few complications and good outcomes. However, no studies have documented its usage for managing large subchondral bone cysts. This article outlines a case report and details the pearls and pitfalls of SCP in treating large subchondral bone cysts. Our patient underwent arthroscopic debridement with medial femoral condyle SCP. Mild posterior extravasation of synthetic bone substitute was observed on Postoperative Day 1, which was immediately rectified on revision arthroscopy. Gradual escalation of weight bearing and good pain relief were subsequently achieved, and the patient has remained complication-free after two years. No further extravasation were observed on repeat radiography. SCP is a feasible temporising measure that may help to delay the need for bone allograft or immediate knee arthroplasty in younger patients while retaining function and delaying loss of productivity.

Análise dos instrumentos utilizados para avaliar a dor, função e cinemática do tronco e membro inferior em pacientes com dor femoropatelar: uma revisão da literatura / Analysis of the instruments used to evaluate the pain, function and kinematics of the trunk and lower limb in patients with Parellofemoral Pain: A Literature Review

A avaliação fisioterapêutica é fundamental para o diagnóstico cinético funcional da Dor Femoropatelar (DFP), bem como para mensuração da dor, limitações funcionais e déficits musculoesqueléticos destes pacientes. A avaliação também permite avaliar prognóstico, assim como evolução do tratamento fisioterapêutico conservador. Entretanto, devido à falta de padronização e validação dos instrumentos de medida, torna-se dificultosa a escolha da ferramenta mais apropriada para avaliar o processo de reabilitação dos pacientes com DFP. O objetivo deste estudo foi identificar os instrumentos mais adequados para a avaliação da dor, função e cinemática do tronco e membro inferior em pacientes com DFP. Para tal, foi realizado uma consulta à base de dados PubMed, utilizando as palavras-chave: "patellofemoral pain syndrome", "physical therapy" "physiotherapy", "evaluation", "measurement", "kinematics", "functional test", "functional activity". Sendo considerado, artigos em idioma inglês publicados entre 2000 a 2019. Os critérios de inclusão foram: 1) estudos que abordassem instrumentos de avaliação, sendo eles, escalas de dor, questionários que mensuram limitação funcional, e testes funcionais usados para analisar a cinemática do tronco e membro inferior; 2) estudos que analisassem as propriedades clinimétricas destes instrumentos; 3) população com DFP. Foram encontrados 1.399 artigos, sendo que após a retiradas de duplicatas, leitura de títulos e resumos, foram incluídos 13 estudos nesta revisão. Tais estudos foram classificados de acordo com Oxford Centre for Evidence-Based Medicine. De acordo com a análise crítica dos artigos, pode-se afirmar que a Escala Visual Analógica e a Escala Numérica são ferramentas adequadas para mensurar a intensidade da dor nestes pacientes. O Anterior Knee Pain Scale, Activities of Daily Living Scale, Pain Severity Scale e Osteoarthritis Outcome Score Patellofemoral Subscale são eficazes para avaliar dor e função em pacientes com DFP, sendo os dois primeiros, os mais indicados. A escolha dos testes funcionais deverá ser realizada de acordo com o nível de capacidade física do paciente, sendo o Step Down Test indicado para a população sedentária, o Single Leg Squat e Single Leg Landing para população ativa, e o Single Leg Triple Hop Test para pacientes atletas.(AU)

: Physical therapy evaluation is fundamental for the functional diagnosis of Patellofemoral Pain (PFP), as well as for measuring pain, functional limitations and musculoskeletal deficits of these patients. The evaluation also allows the evaluation of prognosis, as well as evolution of conservative physiotherapeutic treatment. However, due to the lack of standardization and validation of measurement instruments, it is difficult to choose the most appropriate instrument to evaluate the rehabilitation process of patients with PFP. The aim of this study was to identify the most appropriate instruments for the evaluation of pain, function and kinematics of the trunk and lower limb in patients with PFP. For this purpose, a search was performed to the PubMed database, using the keywords: "patellofemoral pain syndrome", "physical therapy" "physiotherapy", "evaluation", "measurement", "kinematics", "functional test", "functional activity". Being considered, articles in English published between 2000 and 2019. The inclusion criteria were: 1) studies addressing assessment instruments, such as pain scales, questionnaires that measure functional limitation, and functional tests used to analyze the kinematics of the trunk and lower limb; 2) studies analyzing the clinimetric properties of these instruments; 3) population with PFP. A total of 1,399 articles were found, and after the removal of duplicates, reading of titles and abstracts, 13 studies were included in this review. Such studies were classified according to Oxford Centre for Evidence-Based Medicine. According to the critical analysis of the articles, it can be affirmed that the Visual Analog Scale and the Numerical Scale are adequate tools to measure pain intensity in these patients. The Previous Knee Pain Scale, Activities of Daily Living Scale, Pain Severity Scale and Osteoarthritis Outcome Score Patellofemoral Subscale are effective for assessing pain and function in patients with PFP, the first two being the most indicated. The choice of functional tests should be performed according to the level of physical capacity of the patient, being the Step Down Test indicated for the sedentary population, Single Leg Squat and Single Leg Landing to active population, and Single Leg Triple Hop Test to athletes patients.(AU)

Effectiveness Of Mulligan’s Squeeze Technique As An Adjunct To Conventional Therapy To Decrease Pain And Improve Range Of Motion In Meniscal Tear-A Randomized Controlled Trial

Background: Serious, major meniscal fractures are the most common knee injuries. In the management of meniscal tears, physical therapy has shown positive results, and additional medication is required to reduce the effects of meniscal tears. This study aimed to evaluate the feasibility of the mulligan squeeze procedure in combination with conventional pain relief therapy and to increase the range of movement and functional ability of meniscal tear patients. The study aims at reviving pain, increasing ROM and stability, and improving the quality of their lives. Methods: In this randomized controlled trial, 40 patients were chosen and randomly assigned to two groups, A and B, clinically diagnosed with a meniscal tear. The Numeric Pain Rating Scale (NPRS), the Patient-Specific Functional Scale (PSFS), and knee range of motion were reported to determine the pain level and functional capability of the patients. Results: During the 4th and 6th week, all classes showed a significant gap (P<0.05). At the end of the 6th week, the standard variance and the overall analysis team t-test values were higher than the control group. Conclusion: The two teams showed significant progress for NRPS, ROM, and PSFS, but the experimental group showed more significant improvement in all the parameters.

Síndrome de Dolor Patelofemoral: revisión actualizada del tratamiento conservador / Patelofemoral Pain Syndrome: Updated review of conservative treatment

Introducción: El síndrome de dolor patelofemoral, se define como aquel dolor retro o peripatelar agravado por al menos 1 actividad que cargue la articulación en flexión. Su diagnóstico, se basa en una correcta anamnesis, examen físico y pruebas de evocación de dolor e inestabilidad. El tratamiento puede ser quirúrgico o conservador, este último, tiene como objetivo disminuir el dolor e inflamación. Sin embargo, a pesar de su alta prevalencia, existen escasos protocolos sobre su manejo, por lo que el objetivo de este trabajo es entregar una revisión de la literatura con información reciente, a modo de dar una recomendación actualizada para su tratamiento. Materiales Y Métodos: Se realizó una revisión no sistemática de estudios publicados entre enero del 2005 y agosto del 2020, utilizando los términos MeSH "Anterior knee pain", "Patellofemoral pain syndrome" y "Treatment". Se usaron como motores de búsqueda PubMed, The Cochrane Library y Trip Data base, excluyendo estudios en animales y población pediátrica. Desarrollo: El tratamiento conservador del síndrome de dolor anterior de rodilla, puede dividirse en intervenciones proximales, locales y distales, todas centradas en una correcta pauta de fortalecimientos y estiramientos de los elementos comprometidos. Se recomienda esquemas asociados de fortalecimientos de core, cadera y rodilla, sin embargo, la literatura no es consistente en pautas de tratamiento protocolizados. Conclusión: El tratamiento conservador del síndrome del dolor patelofemoral depende exclusivamente de los resultados de un correcto examen físico y de las pruebas terapéuticas correspondientes.

Introduction: Patellofemoral pain syndrome is defined as that retro or peripatellar pain aggravated by at least one activity that loads the joint in flexion. Its diagnostic is based on the correct anamnesis, physical exam, pain evocation tests and instability. The treatment can be surgical or conservative, and the last one aims to reduce pain and inflammation. However, despite its high prevalence, there are few protocols concerning its handling, so the main objective of this research is to offer a literature review with updated information, in order to give an updated recommendation for its treatment. Materials And Methods: A non-systematic review of studies published between January 2005 and August 2020 were performed, using the MeSH "Anterior knee pain", "Patellofemoral pain syndrome" and "Treatment". PubMed, The Cochrane Library, and Trip Database were used as search engines, excluding studies in animals and the pediatric population. Development: The conservative treatment of anterior knee pain syndrome, can be divided into proximal, local and distal interventions, all of them focused on a correct guide of strengthening and stretching of the elements involved. Associated schemes of core, hip and knee strengthening are recommended, nevertheless, the literature is not consistent in terms of protocolized treatment guidelines. Conclusion: The conservative treatment of patellofemoral pain syndrome depends exclusively on the results of a correct physical examination, and the corresponding therapeutic tests.

Effects of a 12-week hip abduction exercise program on the electromyographic activity of hip and knee muscles of women with patellofemoral pain: A pilot study

Aims: The purpose of our study was to compare the hip and knee muscle activity before and after a hip abduction exercise program in women with patellofemoral pain (PFP). Methods: Eleven women with PFP were included in our pre/post design study. Participants were assessed before and after 12-week hip abduction exercise program. All participants performed 6 stair climbing repetitions, 3 sets of rope jumps over 30 s and 5 sets of 8 squats to standardize the physical activity level before data collection. We recorded the electromyographic activity from gluteus medius, vastus medialis (VM) and vastus lateralis (VL) for double-legged squat with and without isometric hip abduction. Additionally, participants were asked to perform a step-down test to assess objective function (maximum number of repetitions over 30 s) and completed a clinical evaluation. Results: Longer duration of VM (Mean difference [95% CI]) = -0.97 [-1.48; -0.46], ES [effect size] = 0.66) and VL (-0.81 [-1.35; -0.27], ES = 0.54) were found after the hip abduction exercise program only for free squat. The participants also performed higher number of step-down repetitions (-3.54 [-5.84; -1.25], ES = 1.03) after the hip abduction exercise program and showed improvement in pain reports. Conclusion: A 12-week hip abduction exercise program changed the quadriceps muscle activation pattern and improved pain and objective function of women with PFP. The exercises promoted a longer VM and VL activation duration. Additionally, they promoted a clinical improvement in the patients with PFP.(AU)

Immediate Effect Of Dry Needling Vs Ultrasound On Releasing Trigger Points In Quadriceps In Patients With Patello-Femoral Pain Syndrome On Pain

Background: Patello-femoral pain syndrome is a very common complaint seen in adolescence and young adults characterized by pain around and behind the patella. There has been prevalence of trigger points in the quadriceps leading to disruption of the VMO/VL firing pattern due to muscle inhibition by pain. Current studies suggest the use of strengthening exercises for hip and knee not focusing on releasing the trigger points. Releasing these trigger points could give additional benefit to the patient and can also be employed along with other conventional therapies. Purpose of the study: To find out which treatment method gives faster results and works directly on the pain and function of the patient. Objectives: To assess the immediate effect of Dry Needling Vs Ultrasound on releasing Trigger points in Quadriceps in patients with Patello-femoral Pain Syndrome on pain and knee/lower extremity function. Study Design: Randomized Control trail Setting: OPD setting. Participants: 70 patients with chronic anterior knee pain, without any ligament, bony or sensory involvement around the knee. Main outcome measures: Numerical Pain rating scale and Pressure Algometer. Results: In the ultrasound group there was a change of 38.60% seen in NRPS post values with a mean difference of 2.21±1.21 and for pressure algometer a change of 36.23% was seen with a mean difference of 3.08±4.40. In the dry needling group there was a change of 64.53% seen in NRPS post values with a mean difference of 3.07±1.48 and for pressure algometer a change of 56.86% was seen with a mean difference of 8.36±6.90. When compared within group dry needling had a better effect than ultrasound on both NRPS and Pressure algomter. Conclusion: The current study indicates that Dry needling is more effective than ultrasound for reducing pain and increasing functional outcome in patients with patellofemoral pain syndrome.

Dolor en la artrosis de rodilla / Pain in knee osteoarthritis

El dolor constituye el síntoma fundamental de la artrosis, sus características e interpretación permiten el diagnóstico certero y también conocer la magnitud de esa entidad. El objetivo de este trabajo, es profundizar los conocimientos sobre los elementos más esenciales relacionados con el dolor en la artrosis de la rodilla. Se describen las causas mecánicas y bioquímicas del dolor, entre las que resaltan el dolor óseo, sinovial, así como los factores bioquímicos relacionados con ese síntoma. Se hace referencia a las principales estructuras anatómicas responsables del dolor y sus mecanismos de acción. Se mencionan la relación existente entre ese síntoma y las modalidades imagenológicas, así como los patrones del dolor. Para finalizar, se hace referencia a las escalas de dolor usadas.

Pain is the main symptom of osteoarthritis. Determining the distinctive features of pain in knee osteoarthritis allows for an accurate diagnosis. This article gives a review of the results from research work on the typical features of knee osteoarthritic pain. The mechanics and biochemical causes of pain are described including both bone and synovial biochemical symptom-related factors. The relationships between knee pain, various imaging techniques and pain mechanism are also identified. Finally, the used pain scales are presented.

Evolución de artralgias posterior a cirugía bariátrica / Evolution of arthralgia subsequent to bariatric surgery

Resumen Objetivo: En este estudio, se propuso establecer la relación entre la pérdida de peso y la evolución de las artropatías en un grupo de pacientes obesos sometidos a cirugía bariátrica. Materiales y Método: Investigación correlacional y de corte longitudinal, retrospectivo, donde se revisaron 33 historias de pacientes obesos mórbidos con artralgia en cualquier articulación, sometidos a cirugía bariátrica. Se realizó el análisis descriptivo de las variables numéricas según la distribución de los datos. Como prueba de relación se utilizó la Prueba T de Student para comparación de proporciones, asumiendo un valor p < 0,05. Resultados: 63,3% fueron femeninas, siendo la rodilla la principal articulación afectada (51,5%), con reducción considerable de su índice de masa corporal poscirugía. Al compararse los promedios del IMC inicial, a los 3, 6 y 12 meses, se encontraron diferencias estadísticamente significativas (p < 0,01). La desaparición de la artralgia en la mayoría de los pacientes ocurrió durante los primeros 3 meses, principalmente pacientes con obesidad grado I y II, en contraste con aquellos pacientes con obesidad grado III y IV, quienes requirieron un mayor lapso, para lograr la desaparición total de la artralgia. Conclusiones: La disminución gradual del dolor articular estuvo en relación directa a la reducción de las cifras de peso del paciente ya operado, mejorando la calidad de vida de los pacientes de la muestra.

Aim: In this study it was proposed to establish the relationship between weight loss and the evolution of the joint diseases in a group of obese patients undergoing bariatric surgery. Materials and Method: Cutting longitudinal, retrospective, and correlational research where studied 33 morbidly obese patients histories and arthralgia, in any joint they was undergoing bariatric surgery. It was the descriptive analysis of the numerical variables according to the distribution of the data. As proof of relationship the Student T test was used for comparison of proportions, assuming a P-value < 0.05. Results: 63.3% were female, being the main affected joint (51.5%), with significant reduction in their rate of body mass post surgery knee. To compare the averages of initial IMC, 3, 6 and 12 months statistically significant differences were found (p < 0.01). The disappearance of arthralgia in patients most occurred during the first 3 months, mainly patients with obesity grade I and II, in contrast to those patients with obesity grade III and IV, who required a greater period, to achieve the total disappearance of arthralgia. Conclusion: The gradual decrease in the pain joint was in direct relation to the reduction of the numbers of weight of the patient already operated, improving the quality of life of the patients of the indicated.

Knee Pain Presenting As Lumbar Radiculopathy: A Case Report

Background: Knee pain in general and if to be specific is the pain located anteriorly, and it is widespread among teenage, adults, and the old age population. Among the anterior knee pain etiologies, patellofemoral pain is one of the most common causes of knee pain. One of the significant issues with the patellofemoral pain is that most of the time it is misdiagnosed, or it is underrated for patients' problems, which in the long run lead to severe functional limitations and muscular atrophy. Right clinical diagnosis at an early phase in musculoskeletal conditions is vital. Case summary: The patient presented with chief complaints of diffused pain over right leg tracking it over to the lower back. She presented with a painful limping gait. No tenderness was noted over the lower back; the neural tension test was nonsignificant. Patellar compression test, Clark's test, eccentric step was positive. Severe disuse quadriceps muscular atrophy was noted over-involved limb. Tenderness over the retropatellar surface was significant. The patient was managed with cryotherapy at home, therapeutic ultrasound over the tender area along with Kinesio tapping, proprioception exercises, stretching, and strengthening exercises. Outcome measure: Pain, ROM, girth measurement, gait pattern. Significant improvement was noted in pain on NPS, ROM, and gait pattern in two weeks management. Conclusion: The Physiotherapy management in cases of anterior knee pain, specifically patellofemoral pain, mainly consisting of kinesiotaping, therapeutic ultrasound, cryotherapy, therapeutic exercises are very effective provided right clinical diagnosis, is made. The treatment outcome may be more fruitful if the correct clinical diagnosis is made at an early stage.

Pigmented Villonodular Synovitis Developing in the Knee of a Rheumatoid Arthritis Patient Mistaken as a Rheumatoid Arthritis Flare-Up / 대한내과학회지

Pigmented villonodular synovitis is a benign tumor arising from synovial fibroblasts or histiocytes. There are diffuse and localized forms: the former involves the entire synovium and the latter consists of nodules, small tumefactions, or pedunculated masses. The knee is the joint most commonly affected and the clinical diagnosis is difficult, so initial misdiagnosis is common. We report a case of pigmented villonodular synovitis developing in the knee of rheumatoid arthritis (RA) patient, mistaken for an RA flare-up.

Relationship of an osteoarthritis of the knee and a knee pain of single-leg on the bilateral difference of ground reaction force in stepping / 体力科学

In this study, we investigated the relationship of an osteoarthritis of the knee (OA) and a knee pain of single-leg on the bilateral difference of ground reaction force in stepping. The subjects were 29 middle-aged women (mean age 63.7±6.7 years). We categorized them into groups based on the following conditions: osteoarthritis of the knee (OA groups; n = 9), knee pain (KP groups; n = 7), and no pain (NP groups; n = 13). We measured the ground reaction force in a vertical direction when stepping on a platform. The evaluation variables were as follows: peak of ground reaction force at the early stance phase (F1), middle phase (F2), and late phase (F3). We calculated the bilateral difference of ground reaction force of the left and right leg and the affected side and the unaffected side ratio. The result of two way ANOVA, there was a significant difference between the leg in F1 and F3 and the group at F2. The result of comparison between the OA groups and the KP groups, there was no significant difference in the unaffected side and the affected side ratio, those in the OA groups tended to have a load on the unaffected side, while those in the KP groups had a load on the affected side. Therefore, it was suggested that there was the relationship of the OA and a knee pain of single-leg on the bilateral difference of ground reaction force in stepping.

General Linear Models for Pain Prediction in Knee Osteoarthritis: Data from the Osteoarthritis Initiative / Modelos Lineales Generales para Predecir Dolor en Osteoartritis de Rodilla: Datos de la "Osteoarthritis Initiative"

Abstract: Knee pain is the most common and disabling symptom in Osteoarthritis (OA). Joint pain is a late manifestation of the OA. In earlier stages of the disease changes in joint structures are shown. Also, formation of bony osteophytes, cartilage degradation, and joint space reduction which are some of the most common, among others. The main goal of this study is to associate radiological features with the joint pain symptom. Univariate and multivariate studies were performed using Bioinformatics tools to determine the relationship of future pain with early radiological evidence of the disease. All data was retrieved from the Osteoarthritis Initiative repository (OAI). A case-control study was done using available data from participants in OAI database. Radiological data was assessed with different OAI radiology groups. We have used quantitative and semi-quantitative scores to measure two different relations between radiological data in three different time points. The goal was to track the appearance and prevalence of pain as a symptom. All predictive models were statistically significant (P ≤ 0,05), obtaining the receiving operating characteristic (ROC) curves with their respective area under the curves (AUC) of 0.6516, 0.6174, and 0.6737 for T-0, T-1 and T-2 in quantitative analysis. For semi-quantitative an AU C of 0.6865, 0.6486, and 0.6406 for T-0, T-1 and T-2. The models obtained in the Bioinformatics study suggest that early joint structure changes can be associated with future joint pain. An image-based biomarker that could predict future pain, measured in early OA stages, could become a useful tool to improve the quality of life of people dealing OA.

Resumen: El dolor de rodilla es el síntoma más común y limitante de la Osteoartritis (OA), además de presentarse como una manifestación tardía de la enfermedad. Los cambios que ocurren en las estructuras de las articulaciones se presentan en las primeras etapas de la OA. Algunos de los cambios más comunes son la formación de osteofitos óseos, degradación del cartílago, y la reducción del espacio en la articulación, entre otros. El principal objetivo de este estudio es la asociación de características radiológicas con el síntoma de dolor de las articulaciones, para lo que fueron realizados dos estudios: univariado y multivariado, usando herramientas bioinformáticas para determinar la relación de futuro dolor con la evidencia radiológica temprana de la enfermedad. Todos los datos fueron recuperados de la Osteoarthritis Initiative repository (OAI). Este estudio de caso-control se llevó a cabo utilizando los datos disponibles de los participantes de la base de datos de la OAI. Los datos radiológicos fueron evaluados con diferentes grupos de radiología de la OAI. Fueron usadas puntuaciones cuantitativas y semi- cuantitativas para medir las dos diferentes relaciones entre los datos radiológicos en tres diferentes puntos de tiempo. El objetivo fue seguir la trayectoria de la aparición y prevalencia del dolor como síntoma. Todos los modelos predictivos fueron estadísticamente significativos (P ≤ 0,05). Para el análisis cuantitativo se calcularon las áreas bajo la curva (AUC): 0.6516, 0.6174, y 0.6737 para T-0, T-1 y T-2, y para el análisis semi-cuantitativo se calcularon las AU C: 0.6865, 0.6486, y 0.6406 para T-0, T-1 y T-2. Los modelos obtenidos en el estudio bioinformático sugieren que los cambios tempranos en la estructura de las articulaciones pueden estar asociados con el futuro dolor de rodilla. Un biomarcador basado en imágenes que pueda predecir el futuro dolor, medido en las primeras etapas de OA, podría convertirse en una herramienta útil para mejorar la calidad de vida de la gente que padece OA.

Tackling Osteoarthritic Knee Pain with Electroacupuncture / 中国结合医学杂志

Electroacupuncture (EA) has been widely used in pain relief. Clinical evidence has revealed its unique advantages and effectiveness in alleviating pain. Studies on EA and pain relief have revealed that EA displays greater analgesic effects for different types of pain in comparison to manual acupuncture. Here, we reviewed the clinical application and mechanism of EA in treating osteoarthritic knee pain and its influence factors in curative effect.

Clinics in diagnostic imaging (185)

A 20-year-old National Serviceman presented with left knee pain and swelling after training for his physical fitness test. Lateral knee radiography and magnetic resonance (MR) imaging showed patellar tendon-lateral femoral condyle friction syndrome (PT-LFCFS), on a background of patella alta and patellar malalignment. The patient was treated non-operatively with a course of physiotherapy and given advice on rest and activity modification. PT-LFCFS is a less well-recognised but important cause of anterior knee pain and represents an entity in a spectrum of disorders related to patellofemoral instability. We herein discuss the MR imaging findings specific to and associated with this condition, as well as briefly describing treatment options. In addition, we showcase a range of commonly encountered abnormalities that affect the infrapatellar fat pad and briefly discuss their specific MR imaging findings.

Effect of total knee replacement with preservation of the patellar fat pad on short-term clinical outcomes / 新乡医学院学报

Objective To explore the effect of total knee replacement with preservation of the patellar fat pad on shorterm clinical outcomes.Methods Eighty two patients with end-stage osteoarthritis were treated by total knee arthroplasty in the Central Hospital of Zhumadian City from May 2012 to May 2016 were randomly divided into resection group and reservation group,with 41 patients in each group.Patients in the two groups were given total knee replacement after general anesthesia,the patients in the resection group underwent a complete resection of the patellar fat pad during exposure to the field,while the patellar fat pad was retained partly or completely during the operation in the preservation group.Patients in the two groups were followed up for one year.The knee function score,knee mobility and anterior knee pain score before operation and one year after surgery were evaluated.Patellar tendon shortening and incidence of anterior knee pain of patients in the two groups were analyzed at one year after surgery.Results There was no significant difference in the knee score,functional score,anterior knee pain score and knee mobility before operation between the two group (P ＞ 0.05).At one year after operation,the knee score,functional score and knee flexion degree were higher,while the anterior knee pain score and flexion contracture were lower than those before operation in the two groups (P ＜ 0.05).There was no significant difference in the knee score,functional score,knee flexion degree and flexion contracture at one year after operation between the two groups (P ＞ 0.05),but the anterior knee pain score in the preservation group at one year after operation was lower than that in the resection group (P ＜ 0.05).There was no significant difference in the length of patellar tendon at one week after operation between the two groups (P ＞ 0.05).The length of patellar tendon was longer and the length of patellar tendon shortening in the preservation group at one year after operation was lower than that in the resection group(P ＜0.05).The incidence of anterior knee pain at one year after operation in the resection group and the preservation group was 22.0％ (9/41) and 2.4％ (1/41),respectively.The incidence of anterior knee pain at one year after operation in the preservation group was lower than that in the resection group (x2 =7.29,P ＜0.01).Conclusion To remain the patellar fat pad in the total knee replacement can improve the condition of anterior knee pain and decrease the degree of patellar tendon shortening after operation.

MRI – A Valuable Tool for the Evaluation of Various Abnormalities in Patients of Knee Pain

Background: Diagnosis in cases of patients suffering from Knee pain has utmost important for treatment and to avoid unnecessary surgery. MRI is a non-invasive procedure in evaluation of knee joint. So this study was planned find out the prevalence of abnormalities detected by MRI in patients of knee pain. Methods: The present study was conducted in Department of Radio Diagnosis and Orthopaedics at Era’s Lucknow Medical College and Hospital. This prospective study was carried out on n=75 patients of knee pain attending Orthopaedic department of Era’s Lucknow Medical College and Hospital, Lucknow  for a period of six months.  Results: Initially 95 patients were enrolled in our study on the basis of inclusion and exclusion criteria. But out of 95 patients, only 75 patients were completed our study period. Out of 75 patients,  42 patients were males and 33  patients were females. Knee pain was found common in age group 50-60 years age group. Joint effusion (84.6%) were more common followed by Edema (68.8%), Menisci lesions (48.8%) were more common as compared to ligament  lesions (14.8%) in patients of knee pain. Osteoarthritis was found in 66.76 % of patients of knee pain. Conclusions: Knee pain can occur at any stage of life due to various causative factors. MRI can demonstrate the exact nature and extent of bony as well as soft tissue abnormality. This has increase the use of MRI in evaluation of patients of knee pain.

Customized footwear for motion control to treat anterior knee pain among runners / Calçado personalizado para controle de movimento para tratar a dor anterior do joelho entre os corredores

BACKGROUND: Street running is extremely popular worldwide. Despite its benefits, there is evidence that stressful physical activity contributes to the development of lesions on the patellofemoral joint, leading, to anterior knee pain. As an attempt to attain pain control and to improve performance, specific footwear is being developed, aiming to suit particular types of foot strike, and therefore to reduce the risk of injury. OBJECTIVE: To evaluate the effectiveness of the use of customized shoes, based on baropodometric test, for the remission of anterior knee pain among amateur street runners. METHODS: This is a cross-sectional study, using questionnaires based on anthropometric and anatomical data of the runner, type of training, individualized footwear based on baropodometric test and diagnosis of anterior knee pain. In total, 40 athletes were studied, which were divided into two groups: Group 1, with 19 athletes who wore specific shoes for their activity, according to the type of foot strike, and, Group 2, with 21 athletes who used neutral shoes, not prescribed by healthcare professionals. All athletes practiced at the same running field. RESULTS: Most of the athletes were female (70%), The pain remission had no overall statistically significant difference between the two groups. However, significant differences were found between groups A and B regarding the time of occurrence and the extent of AKP. CONCLUSION: The data analysis showed that the use of customized running shoes, based exclusively on baropodometric exams, does not reduce anterior knee pain in amateur street runners, which is consistent with current literature. The improvement of pain with customized shoes, when present, appeared to have a short duration of around three month.

FUNDAMENTO: Corrida de rua é extremamente popular em todo o mundo. Apesar dos seus benefícios, há evidências de que o estresse dessa atividade física contribui para o desenvolvimento de lesões da articulação patelofemoral, levando, à dor anterior do joelho. Como uma tentativa de alcançar o controle da dor e para melhorar o desempenho, calçados específicos foram desenvolvidos, visando adequar determinados tipos de impacto do pé, e, por conseguinte, para reduzir o risco de lesões. OBJETIVO: Avaliar a eficácia do uso de sapatos personalizados, com base no teste de baropodometria, para a remissão de dor anterior do joelho entre os corredores de rua amadores. MÉTODOS: Este é um estudo transversal, por meio de questionários com base nos dados antropométricos e anatômicas do corredor, tipo de treinamento, calçado individualizado com base no teste de baropodometria e diagnóstico da dor anterior do joelho. No total, 40 atletas foram estudados, divididos em dois grupos: Grupo 1, com 19 atletas que usavam sapatos específicos para a sua atividade, de acordo com o tipo de ataque de movimento do pé, e, Grupo 2, com 21 atletas que usaram sapatos neutros, não prescritos por profissionais de saúde. Todos os atletas treinaram em um mesmo campo. RESULTADOS: A maioria dos atletas eram do sexo feminino (70%); não houve diferença estatisticamente significativa entre os dois grupos em termos de remissão da dor. CONCLUSÃO: A análise dos dados mostrou que o uso de tênis personalizados, com base exclusivamente em exames baropodométricos, dor anterior do joelho não reduz a dor os corredores de rua amadores, o que é consistente com a literatura atual. A melhora da dor com sapatos personalizados parece ter uma curta duração de cerca de três meses.