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1.
China Journal of Orthopaedics and Traumatology ; (12): 33-44, 2024.
Artigo em Chinês | WPRIM | ID: wpr-1009220

RESUMO

OBJECTIVE@#To observe the cage subsidence after oblique lateral interbody fusion (OLIF) for lumbar spondylosis, summarize the characteristics of the cage subsidence, analyze causes, and propose preventive measures.@*METHODS@#The data of 144 patients of lumbar spine lesions admitted to our hospital from October 2015 to December 2018 were retrospectively analyzed. There were 43 males and 101 females, and the age ranged from 20 to 81 years old, with an average of (60.90±10.06) years old. Disease types:17 patients of lumbar intervertebral disc degenerative disease, 12 patients of giant lumbar disc herniation, 5 patients of discogenic low back pain, 33 patients of lumbar spinal stenosis, 26 patients of lumbar degenerative spondylolisthesis, 28 patients of lumbar spondylolisthesis with spondylolisthesis, 11 patients of adjacent vertebral disease after lumbar internal fixation, 7 patients of primary spondylitis in the inflammatory outcome stage, and 5 patients of lumbar degenerative scoliosis. Preoperative dual-energy X-ray bone mineral density examination showed 57 patients of osteopenia or osteoporosis, and 87 patients of normal bone density. The number of fusion segments:124 patients of single-segment, 11 patients of two-segment, 8 patients of three-segment, four-segment 1 patient. There were 40 patients treated by stand-alone OLIF, and 104 patients by OLIF combined with posterior pedicle screw. Observed the occurrence of fusion cage settlement after operation, conducted monofactor analysis on possible risk factors, and observed the influence of fusion cage settlement on clinical results.@*RESULTS@#All operations were successfully completed, the median operation time was 99 min, and the median intraoperative blood loss was 106 ml. Intraoperative endplate injury occurred in 30 patients and vertebral fracture occurred in 5 patients. The mean follow-up was (14.57±7.14) months from 6 to 30 months. During the follow-up, except for the patients of primary lumbar interstitial inflammation and some patients of lumbar spondylolisthesis with spondylolisthesis, the others all had different degrees of cage subsidence. Cage subsidence classification:119 patients were normal subsidence, and 25 patients were abnormal subsidence (23 patients were gradeⅠ, and 2 patients were gradeⅡ). There was no loosening or rupture of the pedicle screw system. The height of the intervertebral space recovered from the preoperative average (9.48±1.84) mm to the postoperative average (12.65±2.03) mm, and the average (10.51±1.81) mm at the last follow-up. There were statistical differences between postoperative and preoperative, and between the last follow-up and postoperative. The interbody fusion rate was 94.4%. The low back pain VAS decreased from the preoperative average (6.55±2.2 9) to the last follow-up (1.40±0.82), and there was statistically significant different. The leg pain VAS decreased from the preoperative average (4.72±1.49) to the final follow-up (0.60±0.03), and the difference was statistically significant (t=9.13, P<0.000 1). The ODI index recovered from the preoperative average (38.50±6.98)% to the latest follow-up (11.30±3.27)%, and there was statistically significant different. The complication rate was 31.3%(45/144), and the reoperation rate was 9.72%(14/144). Among them, 8 patients were reoperated due to fusion cage subsidence or displacement, accounting for 57.14%(8/14) of reoperation. The fusion cage subsidence in this group had obvious characteristics. The monofactor analysis showed that the number of abnormal subsidence patients in the osteopenia or osteoporosis group, Stand-alone OLIF group, 2 or more segments fusion group, and endplate injury group was higher than that in the normal bone mass group, OLIF combined with pedicle screw fixation group, single segment fusion group, and no endplate injury group, and the comparison had statistical differences.@*CONCLUSION@#Cage subsidence is a common phenomenon after OLIF surgery. Preoperative osteopenia or osteoporosis, Stand-alone OLIF, 2 or more segments of fusion and intraoperative endplate injury may be important factors for postoperative fusion cage subsidence. Although there is no significant correlation between the degree of cage subsidence and clinical symptoms, there is a risk of cage migration, and prevention needs to be strengthened to reduce serious complications caused by fusion of cage subsidence, including reoperation.


Assuntos
Masculino , Feminino , Humanos , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Espondilolistese/cirurgia , Estudos Retrospectivos , Dor Lombar/etiologia , Escoliose , Vértebras Lombares/cirurgia , Fusão Vertebral/métodos , Doenças Ósseas Metabólicas , Osteoporose/etiologia , Resultado do Tratamento , Deslocamento do Disco Intervertebral , Degeneração do Disco Intervertebral
2.
China Journal of Orthopaedics and Traumatology ; (12): 29-37, 2023.
Artigo em Chinês | WPRIM | ID: wpr-970815

RESUMO

OBJECTIVE@#To explore the feasibility and clinical effect of Stand-alone oblique lateral interbody fusion (OLIF) in the treatment of lumbar intervertebral disc degeneration with Modic changes and endplate sclerosis.@*METHODS@#A retrospective analysis was performed on 16 cases with lumbar intervertebral disc degeneration with Modic changes and endplate sclerosis admitted to three medical centers from January 2015 to December 2018. There were 6 males and 10 females, the age ranged from 45 to 67 years old with an average of (55.48±8.07) years old, the medical history ranged from 36 to 240 months with an average of (82.40±47.68) months. The lesion sites included L2,3 in 2 cases, L3,4 in 5 cases, and L4,5 in 9 cases. All patients presented with chronic low back pain with lower limb neurological symptoms in 3 cases. All patients were treated by Stand-alone oblique lateral lumbar interbody fusion. Clinical and radiological findings and complications were observed.@*RESULTS@#There was no vascular injury, endplate injury and vertebral fracture during the operation. The mean incision length, operation time, and intraoperative blood loss were(4.06±0.42) cm, (45.12±5.43) min, (33.40±7.29) ml, respectively. The mean visual analogue scale (VAS) of the incision pain was (1.14±0.47) at 72 hours after operation. There was no incision skin necrosis, poor incision healing or infection in patients. Sympathetic chain injury occurred in 1 case, anterolateral pain and numbness of the left thigh in 2 cases, and weakness of the left iliopsoas muscle in 1 case, all of which were transient injuries with a complication rate of 25%(4/16). All 16 patients were followed up from 12 to 36 months with an average of (20.80±5.46) months. The intervertebral space height was significantly recovered after operation, with slight lost during the follow-up. Coronal and sagittal balance of the lumbar spine showed good improvement at the final follow-up. There was no obvious subsidence or displacement of the cage, and the interbody fusion was obtained. At the final follow-up, Japanese Orthopaedic Association(JOA) score and Oswestry disability index(ODI) were significantly improved.@*CONCLUSION@#As long as the selection of case is strict enough and the preoperative examination is sufficients, the use of Stand-alone OLIF in the treatment of lumbar intervertebral disc degeneration with Modic changes and endplate sclerosis has a good results, with obvious clinical advantages and is a better surgical choice.


Assuntos
Masculino , Feminino , Humanos , Pré-Escolar , Degeneração do Disco Intervertebral/cirurgia , Estudos Retrospectivos , Esclerose , Resultado do Tratamento , Vértebras Lombares/cirurgia , Fusão Vertebral/métodos
3.
China Journal of Orthopaedics and Traumatology ; (12): 465-472, 2023.
Artigo em Chinês | WPRIM | ID: wpr-981716

RESUMO

OBJECTIVE@#To evaluate the early clinical efficacy of robot-assisted percutaneous short-segment bone cement-augmented pedicle screw fixation in the treatment of stageⅡ-Ⅲ Kümmell disease.@*METHODS@#The clinical data of 20 patients with stageⅡ-Ⅲ Kümmell's disease who underwent robot-assisted percutaneous bone cement-augmented pedicle screw fixation between June 2017 and January 2021 were retrospectively analyzed. There were 4 males and 16 females, aged from 60 to 81 years old with an average age of (69.1±8.3) years. There were 9 cases of stageⅡand 11 cases of stage Ⅲ, all of which were single vertebral lesions, including 3 cases of T11, 5 cases of T12, 8 cases of L1, 3 cases of L2, and 1 case of L3. These patients did not exhibit symptoms of spinal cord injury. The operation time, intraoperative blood loss, and complications were recorded. The position of pedicle screws and the filling and leakage of bone cement in gaps were observed using postoperative CT 2D reconstruction. The data of the visual analogue scale (VAS), Oswestry disability index (ODI), kyphosis Cobb angle, wedge angle of the diseased vertebra, and anterior and posterior vertebral height on lateral radiographs were statistically analyzed preoperatively, 1 week postoperatively, and at the final follow-up.@*RESULTS@#Twenty patients were followed up for 10 to 26 months, with an average follow-up of (16.0±5.1) months. All operations were successfully completed. The surgical duration ranged from 98 to 160 minutes, with an average of (122±24) minutes. The intraoperative blood loss ranged from 25 to 95 ml, with an average of (45±20) ml. There were no intraoperative vascular nerve injuries. A total of 120 screws were inserted in this group, including 111 screws at grade A and 9 screws at grade B according to the Gertzbein and Robbins scales. Postoperative CT indicated that the bone cement was well-filled in the diseased vertebra, and cement leakage occurred in 4 cases. Preoperative VAS and ODI were (6.05±0.18) points and (71.10±5.37)%, respectively, (2.05±0.14) points and (18.57±2.77)% at 1 week after operation, and (1.35±0.11) points and (15.71±2.12) % at final follow-up. There were significant differences between postoperative 1 week and preoperative, and between final follow-up and postoperative 1 week(P<0.01). Anterior and posterior vertebral height, kyphosis Cobb angle, and wedge angle of the diseased vertebra were(45.07±1.06)%, (82.02±2.11)%, (19.49±0.77) °, and (17.56±0.94) ° preoperatively, respectively, (77.00±0.99)%, (83.04±2.02)%, (7.34±0.56) °, and (6.15±0.52) ° at 1 week postoperatively, and (75.13±0.86)%, (82.39±0.45)%, (8.38±0.63) °, and (7.09±0.59) ° at the final follow-up.@*CONCLUSION@#Robot-assisted percutaneous short-segment bone cement-augmented pedicle screw fixation demonstrates satisfactory short-term efficacy in treating stageⅡ-Ⅲ Kümmell's disease as an effective minimally invasive alternative. However, longer operation times and strict patient selection criteria are necessary, and long-term follow-up is required to determine its lasting effectiveness.


Assuntos
Masculino , Feminino , Humanos , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Parafusos Pediculares , Cimentos Ósseos , Robótica , Perda Sanguínea Cirúrgica , Estudos Retrospectivos , Fraturas da Coluna Vertebral/cirurgia , Vértebras Lombares/lesões , Resultado do Tratamento , Cifose , Vértebras Torácicas/lesões , Fixação Interna de Fraturas
4.
Chinese Journal of Stomatology ; (12): 374-379, 2023.
Artigo em Chinês | WPRIM | ID: wpr-986081

RESUMO

The stomatognathic system is an organic combination of bone, dentition, joints, masticatory muscles and innervation nerves. It is an organ system for the human body to perform mastication, speech, swallowing and other important functions. Due to the complex anatomical structure of stomatognathic system and ethical limitations, it is difficult to directly measure the movement and force by using the biomechanical experimental methods. Multi-body system dynamics is an important tool to study the kinetics and force of a multi-body system, which consists of several objects with relative motion. We can use the method of multi-body system dynamics simulation in engineering to study the movement, soft tissue deformation and force transfer of this complex stomatognathic system. This paper briefly introduces the history and application methods of multi-body system dynamics and the commonly used modeling methods. The application and research progress of multi-body system dynamics modeling methods in the field of stomatology was emphatically summarized, development prospects of current research and difficulties were put forward.

5.
Acta Pharmaceutica Sinica ; (12): 1822-1832, 2023.
Artigo em Chinês | WPRIM | ID: wpr-978655

RESUMO

The alterations of serum biological endogenous chemicals in rats with phlegm dampness accumulation syndrome of prehypertension (PHT) were interfered by Banxia Baizhu Tianma decoction (BBT), and the metabolic regulatory pathway of BBT was clarified using serum metabonomics analysis. To replicate the rat model of prehypertension phlegm dampness syndrome, blood pressure, behavioral markers, and serum biochemical markers of rats were collected. BBT's effectiveness in controlling blood pressure and blood lipids was assessed, and changes in endogenous small molecules in rat serum were determined using UPLC-Q-Orbitrap MS metabolic analysis. The results showed that BBT could regulate 9 metabolites, including arachidonic acid, cholic acid, glycodeoxycholic acid, N-adenosyltyrosine, arginine, lysophosphatidylethanolamine (20:0/0:00), lysophospholipid (P-18:0), lysophospholipid (18:0), lysophospholipid (22:5(7Z,10Z,13Z,16Z,19Z)). MetaboAnalyst was used to analyze the metabolic pathway. There were 7 metabolic pathways closely related to the change of blood pressure in rats, among which arachidonic acid metabolic pathway was the most critical. The metabolism difference foreign body in the model rats tends to return to the normal level, which provides a research basis for the mechanism of BBT from the perspective of metabonomics. This study was approved by the Experimental Animal Welfare Ethics Review Committee of Shandong University of Traditional Chinese Medicine (approval number: SDUTCM20211103001).

6.
Chinese Pharmacological Bulletin ; (12): 1282-1288, 2023.
Artigo em Chinês | WPRIM | ID: wpr-1013769

RESUMO

Aim To investigate the differences in the role of different purinergic receptor subtypes at different sites in postoperative-hyperalgesic priming in mice. Methods A postoperative-hyperalgesic priming model was constructed by injecting PGE

7.
Chinese Acupuncture & Moxibustion ; (12): 173-178, 2022.
Artigo em Chinês | WPRIM | ID: wpr-927354

RESUMO

OBJECTIVE@#To observe the occurrence time of neuralgia and the expression of purinergic ligand-gated ion channel 7 receptor (P2X7R) in the dorsal horn of the spinal cord after intraperitoneal injection of streptozotocin (STZ) in diabetic rats, and to explore the effect of electroacupuncture (EA) and pretreatment of EA on the heat pain threshold and expression of P2X7R in the spinal dorsal horn in rats with diabetic neuropathic pain (DNP), and to explore the possible mechanism of EA for DNP.@*METHODS@#PartⅠ: Thirty male SD rats were randomly selected from 64 male SD rats as the control group; the remaining rats were given intraperitoneal injection of STZ (10 mg/mL) at a dose of 65 mg/kg to establish the diabetes model, and 30 rats were successfully modeled as the model group. The control group and the model group were divided into three subgroups respectively at 7, 14 and 21 days, with 10 rats in each subgroup. Body mass, fasting blood glucose (FBG) and thermal pain threshold were recorded at 7, 14 and 21 days after injection; the expression of P2X7R in spinal dorsal horn was detected by Western blot. PartⅡ: Eight SD rats were randomly selected from 35 male SD rats as the blank group, and the remaining 27 rats were given intraperitoneal injection of STZ (10 mg/mL) at a dose of 65 mg/kg to establish the diabetes model. The 24 rats with successful diabetes model were randomly divided into a DNP group, an EA group and a pre-EA group, 8 rats in each group. Fifteen to 21 days after STZ injection, the EA group received EA at "Zusanli" (ST 36) and "Kunlun" (BL 60), continuous wave, frequency of 2 Hz, 30 min each time, once a day; the intervention method in the pre-EA group was the same as that in the EA group. The intervention time was 8 to 14 days after STZ injection. The body mass, FBG and thermal pain threshold were recorded before STZ injection and 7, 14 and 21 days after STZ injection; the expression of P2X7R in spinal dorsal horn was detected by Western blot 21 days after injection.@*RESULTS@#PartⅠ: Compared with the control group, in the model group, the body mass was decreased and FBG was increased 7, 14 and 21 days after STZ injection (P<0.01), and the thermal pain threshold was decreased 14 and 21 days after STZ injection (P<0.05), and the expression of P2X7R in spinal dorsal horn was increased 7, 14 and 21 days after STZ injection (P<0.05, P<0.01). PartⅡ: Compared with the blank group, in the DNP group, the body mass was decreased and fasting blood glucose were increased 7, 14 and 21 days after STZ injection (P<0.01). Compared with the DNP group, in the pre-EA group, the heat pain threshold was increased 14 and 21 days after STZ injection (P<0.05), while in the EA group, the heat pain threshold was increased 21 days after STZ injection (P<0.01), and the expression of P2X7R in the dorsal horn in the EA group and the pre-EA group was decreased (P<0.01).@*CONCLUSION@#The diabetic neuropathic pain is observed 14 days after STZ injection. EA could not only treat but also prevent the occurrence of DNP, and its mechanism may be related to down-regulation of P2X7R expression in the dorsal horn of the spinal cord.


Assuntos
Animais , Masculino , Ratos , Diabetes Mellitus Experimental/terapia , Eletroacupuntura , Neuralgia/terapia , Ratos Sprague-Dawley , Medula Espinal , Corno Dorsal da Medula Espinal
8.
Chinese Acupuncture & Moxibustion ; (12): 8-12, 2022.
Artigo em Chinês | WPRIM | ID: wpr-927326

RESUMO

Under the situation of the rapid expansion of hospital, the dilemma of acupuncture-moxibustion department, as well as the relevant solutions are explored. The main reasons for the shrinking situation of the service in acupuncture-moxibustion department include: the disease-based department division trends to divert many diseases suitably treated in acupuncture-moxibustion department; the environment pursuing economic benefits restricts the development of acupuncture-moxibustion therapy characterized by "simple and low-cost operation". There are three important approaches for breaking through the dilemma of acupuncture and moxibustion therapy. First, modifying the traditional service mode as waiting for patients in acupuncture-moxibustion department and promoting acupuncture and moxibustion technology to be adopted in other departments rather than limited only in acupuncture-moxibustion department. Second, increasing the charges of acupuncture and moxibustion technology rationally. Third, positioning accurately the role of acupuncture and moxibustion technology in health services based on its own characteristics and advantages and promoting it in community medical institutions. All of these solutions require the guidance of supporting policies.


Assuntos
Humanos , Acupuntura , Terapia por Acupuntura , Hospitais , Moxibustão
9.
Korean Journal of Radiology ; : 479-487, 2022.
Artigo em Inglês | WPRIM | ID: wpr-926738

RESUMO

Objective@#To prospectively evaluate the efficacy of lauromacrogol injection for ablation (LIA) of benign predominantly cystic thyroid nodules and its related factors. @*Materials and Methods@#A total of 142 benign predominantly cystic thyroid nodules (median volume, 12.5 mL; range, 0.4– 156 mL) in 137 patients (male:female sex ratio, 36:101; mean age ± standard deviation [SD], 49 ± 13 years) were treated with LIA after being confirmed as benign via cytology. The volume reduction rate (VRR) of the nodules and cosmetic score were evaluated during follow-up at 1, 3, and 6 months after treatment and every 6 months thereafter. A VRR of ≥ 50% at the 12-month follow-up was considered to indicate effective treatment. The associations between the clinical factors and nodular ultrasound features, including the initial nodule volume, proportion of solid components, vascularity grade and ineffective treatment (VRR of < 50% at the 12-month follow-up), and regrowth were analyzed. @*Results@#All patients completed follow-up for at least 12 months. The average ± SD follow-up period was 32 ± 11 months (range, 12–54 months). The effective treatment rate was 73.2% (104/142), while the regrowth rate was 12.0% (17/142) at the last follow-up. Grade 2–3 intranodular vascularity in the solid components of the nodules was the only independent factor associated with ineffective treatment, with an odds ratio (reference category, grade 0–1) of 3.054 (95% confidence interval, 1.148–8.127) (p = 0.025). @*Conclusion@#LIA is an effective treatment for predominantly cystic thyroid nodules. Grade 2–3 intranodular vascularity in the solid components of nodules is the only independent risk factor for ineffective LIA.

10.
Chinese Journal of Microbiology and Immunology ; (12): 224-233, 2022.
Artigo em Chinês | WPRIM | ID: wpr-934036

RESUMO

Objective:To establish and validate a fluorescence focus assay (FFA) for rapid titration of Japanese encephalitis virus (JEV) and to evaluate its application in the production of Japanese encephalitis vaccine.Methods:Recombinant JEV non-structural protein 1 (NS1) was expressed in a prokaryotic expression system. After purification, JEV-NS1 was used to immunize rabbits to induce polyclonal antibody. FFA was established with the polyclonal antibody to titer JEV. The accuracy of FFA was validated by comparing with plaque assay, and the specificity, precision, linearity, range and robustness of FFA were also validated. Twenty-eight batches of live-attenuated Japanese encephalitis vaccine were titrated with FFA and plaque assay to analyze the relationship between the two assays.Results:FFA established with polyclonal antibody against JEV-NS1 could be used to titrate JEV, and there was no cross reaction with other viruses (tick-borne encephalitis virus, yellow fever virus, coxsackievirus A2, coxsackievirus A4). Results of the validation tests showed that FFA met the requirement of quality control for live-attenuated Japanese encephalitis vaccine. FFA was more consistency than plaque assay.Conclusions:The established FFA could be used for virus titration in the production of live-attenuated Japanese encephalitis vaccine.

11.
Journal of Experimental Hematology ; (6): 1566-1569, 2021.
Artigo em Chinês | WPRIM | ID: wpr-922296

RESUMO

OBJECTIVE@#To clarify the significance of inflammasome NLRP3 in children with immune thrombocytopenia (ITP) by detecting its changes before and after treatment.@*METHODS@#Twenty children with ITP diagnosed and treated in Xuzhou Children's Hospital were enrolled as observation group, and 10 healthy children as control group. The mRNA levels of NLRP3, ASC, and Caspase-1 were measured by real-time quantitative PCR (RT-qPCR), the serum levels of IL-18, IL-1β, and high mobility group protein B1 (HMGB1) were detected by ELISA, and the protein level of NLRP3 was detected by Western blot.@*RESULTS@#In newly diagnosed ITP children, the serum levels of IL-18, IL-1β and HMGB1 significantly decreased after treatment (P<0.05). After treatment, NLRP3, ASC, and Caspase-1 mRNA levels in peripheral blood mononuclear cells were significantly lower than those before treatment (P<0.05). NLRP3 protein expression decreased significantly after treatment.@*CONCLUSION@#Expression of NLRP3 inflammasome and downstream inflammatory factors are decrease after treatment in children with ITP, which may be used as effective prognostic markers.


Assuntos
Criança , Humanos , Proteína HMGB1 , Inflamassomos , Leucócitos Mononucleares , Proteína 3 que Contém Domínio de Pirina da Família NLR , Púrpura Trombocitopênica Idiopática
12.
Chinese Acupuncture & Moxibustion ; (12): 1273-1275, 2021.
Artigo em Chinês | WPRIM | ID: wpr-921044

RESUMO

The elements of ethical review related to clinical research of acupuncture and moxibustion is discussed to provide ideas for various institutions to carry out relevant ethical review. It is believed that the ethical review of clinical research of acupuncture and moxibustion needs to focus on the specificity of acupuncture and moxibustion. Starting from the basic theory of traditional Chinese medicine, the theory of meridians and acupoints and the theory of syndrome differentiation along meridians, the key contents of ethical review such as intervention methods, grouping design and placebo control should be considered, so as to standardize the clinical research of acupuncture and moxibustion and protect the health and rights and interests of participants.


Assuntos
Humanos , Pontos de Acupuntura , Terapia por Acupuntura , Pesquisa Biomédica , Revisão Ética , Meridianos , Moxibustão
13.
Journal of Peking University(Health Sciences) ; (6): 770-775, 2021.
Artigo em Chinês | WPRIM | ID: wpr-942251

RESUMO

OBJECTIVE@#To evaluate the effects of femtosecond laser treated microgrooved surface on microscopic topography, phase transformation, and three-points flexural strength of zirconia, and to provide reference for surface microstructure optimization of zirconia implant.@*METHODS@#According to different surface treatment methods, 57 computer aided design/computer aided manufacture (CAD/CAM) zirconia bars (20.0 mm×4.0 mm×1.4 mm) were evenly divided into three groups: sintered group, no treatment after sintering, taken as control; sandblasted group, sandblasted with 110 μm aluminium oxide (Al2O3) after sintering; microgrooved group, femtosecond laser fabricated microgrooves with 50 μm width, 30 μm depth, and 100 μm pitch. Surface microscopic topography was observed with scanning electron microscope (SEM) and 3D laser microscope. Further, surface roughness in each group and microgroove size were measured. Crystal phase was analyzed with X-ray diffraction. Specimens were subjected to three- points flexural strength test, and Weibull distribution was used to analyze their strength characteristics.@*RESULTS@#SEM showed that sintered surface was flat with clear grain structure; sandblasted surface exihibited bumps and holes with sharp margins and irregular shape; microgrooves were regularly aligned without evident defect, and nano-scale particles were observed on the surface inside of the microgrooves. Ra value of microgrooved group [(9.42±0.28)] μm was significantly higher than that of sandblasted group [(1.04±0.03) μm] and sintered group [(0.60±0.04) μm], and there was statistical difference between sandblasted group and sintered group (P < 0.001). The microgroove size was precise with (49.75±1.24) μm width, (30.85±1.02) μm depth, and (100.58±1.94) μm pitch. Crystal phase analysis showed that monoclinic volume fraction of sandblasted group (18.17%) was much higher than that of sintered group (1.55%), while microgrooved group (2.21%) was similar with sintered group. The flexural strength of sandblasted group (986.22±163.25) MPa had no statistical difference with that of sintered group (946.46±134.15) MPa (P=0.847), but the strength in microgrooved group (547.92±30.89) MPa dropped significantly compared with the other two groups (P < 0.001). Weibull modulus of sintered, sandblasted, microgrooved groups were 7.89, 6.98, and 23.46, respectively.@*CONCLUSION@#Femtosecond laser was able to form micro/nanostructured microgrooves on zirconia surface, which deleteriously affected the flexural strength of zirconia.


Assuntos
Humanos , Cerâmica , Materiais Dentários , Resistência à Flexão , Lasers , Teste de Materiais , Microscopia Eletrônica de Varredura , Propriedades de Superfície , Ítrio , Zircônio
14.
China Journal of Orthopaedics and Traumatology ; (12): 304-304, 2021.
Artigo em Chinês | WPRIM | ID: wpr-879434

RESUMO

OBJECTIVE@#To explore the clinical value and safety of unilateral pedicle screw fixation combined with contralateral translaminar facet screw fixation and interbody fusion by muscle-splitting approach treatment of recurrent lumbar disc herniation.@*METHODS@#The clinical data of 51 patients with recurrent lumbar disc herniation treated from June 2012 to December 2017 were retrospectively analyzed. There were 32 males and 19 females, aged 34 to 64 years with an average of (51.11± 7.28) years. Lesions invoved L@*RESULTS@#There was no statistical difference in operation time between two groups (@*CONCLUSION@#Muscle-splitting approach is feasible for thetreatment of recurrent lumbar disc herniation with pedicle screw fixation combined with contralateral translaminar facet screw fixation and interbody fusion. Compared with the median incision approach, the muscle-splitting approach has the advantages of small incision, less trauma, less bleeding, rapid recovery. Also it can protect multifidus and do not increase the incidence of serious complications. Thus, it can be used as a choice for fixation and fusion of recurrent lumbar disc herniation.


Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Degeneração do Disco Intervertebral , Deslocamento do Disco Intervertebral/cirurgia , Vértebras Lombares/cirurgia , Músculos , Parafusos Pediculares , Estudos Retrospectivos , Fusão Vertebral , Resultado do Tratamento
15.
Chinese Acupuncture & Moxibustion ; (12): 451-457, 2021.
Artigo em Chinês | WPRIM | ID: wpr-877637

RESUMO

OBJECTIVE@#To systematically evaluate the efficacy and safety of conventional therapy combined with moxibustion in the treatment of chronic obstructive pulmonary disease (COPD) in stable phase based on Meta-analysis medicine.@*METHODS@#The randomized controlled trials (RCTs) of moxibustion as adjuvant therapy for COPD were retrieved from the databases of CNKI, Wanfang, SinoMed, PubMed, Web of Science, Cochrane Library and Ebsco. RevMan5.3 software was used for Meta analysis, and the quality of evidence was evaluated according to GRADE standards.@*RESULTS@#A total of 16 RCTs were included, involving 1425 patients. The results of Meta-analysis showed that: compared with the conventional treatment, ①the adjuvant therapy with moxibustion had advantages in reducing the number of acute exacerbations [@*CONCLUSION@#The efficacy of moxibustion as adjuvant therapy for COPD in stable phase is better than that of simple conventional therapy. Due to insufficient clinical evidence and the limitations of this study, clinical safety is unclear and further evidence is needed to support the results.


Assuntos
Humanos , Pulmão , Moxibustão , Doença Pulmonar Obstrutiva Crônica/terapia , Resultado do Tratamento
16.
Chinese Acupuncture & Moxibustion ; (12): 335-338, 2021.
Artigo em Chinês | WPRIM | ID: wpr-877616

RESUMO

It is to determine the effect mechanism and therapeutic method of the idea as "guiding meridian sinew


Assuntos
Pontos de Acupuntura , Terapia por Acupuntura , Meridianos , Qi , Corrida
17.
Chinese Journal of Rehabilitation Theory and Practice ; (12): 530-541, 2021.
Artigo em Chinês | WPRIM | ID: wpr-905242

RESUMO

Objective:To analyze the effects of proprioceptive neuromuscular facilitation (PNF) on balance, motor and activities of daily living (ADL) for stroke patients. Methods:The randomized controlled trials about the effects of PNF on motor, balance and ADL in stroke patients were retrieved from PubMed, Embase, CNKI, Wanfang data, and VIP, since establishment to December, 2019. The primary outcome measures were Berg Balance Scale (BBS), Fugl-Meyer Assessment (FMA) and modified Bathel Index (MBI). The secondary outcome measures were Functional Reach Test (FRT), Trunk Impairment Scale (TIS), and Timed 'Up and Go' Test (TUGT). The literatures were independently screened by two investigators, and the quality of the articles was evaluated using the Cochrane Library systematic review criteria, and meta-analysis was performed using RevMan 5.3. Results:A total of 13 articles were included with 786 stroke patients. PNF increased the score of BBS for sequelae patients (MD = 3.31, 95%CI 2.58 to 4.04, P < 0.001), FMA for recovery patients (MD = 8.31, 95%CI 5.68 to 10.97, P < 0.001); as well as MBI score (MD = 6.84, 95%CI 5.20 to 8.48, P < 0.001), FRT distance (MD = 1.11, 95%CI 0.39 to 1.84, P = 0.003) and TIS score (MD = 1.75, 95%CI 1.19 to 2.31, P < 0.001) for all the patients, and decreased TUGT time for sequelae patients (MD = -1.86, 95%CI -2.62 to -1.10, P < 0.001). Conclusion:PNF can significantly improve balance, motor and ADL for stroke patients. The effectiveness is various with the course of disease. More high-quality researches are needed.

18.
Chinese Acupuncture & Moxibustion ; (12): 935-936, 2021.
Artigo em Chinês | WPRIM | ID: wpr-887510

RESUMO

An auxiliary isolation device of cupping therapy for cross-infection prevention is designed to reduce the disinfection steps and be against cross transmission. This device is composed of a disposable isolation unit made of fire proof plastic material and a disposable cup-mouth fixator made of elastic material. The disposable isolation unit includes two parts, the cup neck isolation unit and the inner isolation unit of fire cup. These two parts connect with the disposable cup-mouth fixator. All of those three sections of the device are center-connected ring-like structure. This device can well prevent the direct contact of fire cup with the patient's skin surface, characterized as safety protection, simple operation and saving time and manpower.


Assuntos
Humanos , Ventosaterapia
19.
Chinese Acupuncture & Moxibustion ; (12): 173-178, 2020.
Artigo em Chinês | WPRIM | ID: wpr-793032

RESUMO

OBJECTIVE@#To observe the expression of GABA receptor mRNA in different brain regions of the central nervous system in chronic inflammatory pain rats and the intervention effect of electroacupuncture (EA).@*METHODS@#A total of 48 SPF male SD rats were randomly divided into a blank control group, a model control group, an EA group and a sham EA group, 12 rats in each group. The model of chronic inflammatory pain was established by injecting Freund's complete adjuvant into the foot. The EA group was treated with EA 28 days after the model establishment. The "Housanli" (ST 36) and "Kunlun" (BL 60) were selected and treated with dilatational wave, 2 Hz/100 Hz in frequency, 0.5-1.5 mA for 30 min; EA was given only once. In the sham EA group, the same acupoints were selected but the needles were only inserted into subcutaneous area; EA was connected for 30 min without electrical stimulation. The behavior changes of mechanical pain threshold and thermal pain threshold before model establishment, 1 day, 3 days, 7 days, 14 days, 21 days and 28 days after the model establishment as well as emotional behavior 29 days after the model establishment were observed; the relative expressions of GABA receptor mRNA in anterior cingulate cortex, amygdala and hypothalamus were observed.@*RESULTS@#Compared with the blank control group, the change rates of mechanical pain threshold and thermal pain threshold in the model control group were decreased significantly 1 day, 3 days, 7 days, 14 days, 21 days, 28 days after model establishment (0.05). Compared with the blank control group, the expression of GABA receptor mRNA in the amygdala was decreased significantly in the model control group (<0.01); compared with the model control group and the sham EA group, the expression of GABA receptor mRNA in amygdala was increased after intervention in the EA group (<0.01).@*CONCLUSION@#Single treatment of EA could significantly increase the mechanical pain threshold and thermal pain threshold, improve abnormal emotional behavior in rats with chronic inflammatory pain, which may be related to the increasing of expression of GABA receptor mRNA in the amygdala.

20.
China Journal of Orthopaedics and Traumatology ; (12): 1142-1147, 2020.
Artigo em Chinês | WPRIM | ID: wpr-879369

RESUMO

OBJECTIVE@#To analyze the causes of vascular injury occurred in oblique lateral interbody fusion for treating lumbar degenerative diseases, and put forward preventive measures.@*METHODS@#There were 235 patients analyzed from October 2014 to May 2017 in five hospitals, who were treated with oblique lateral interbody fusion with or without posterior pedicle screw fixation. There were 79 males and 156 females with an average age of (61.9±13.5) years old (ranged from 32 to 83 years). There were 7 cases of vascular injury, including 4 cases of segmental vessel injury, 1 case of left common iliac artery injury, 1 case of left common iliac veininjury and 1 case of ovarian vein injury.@*RESULTS@#The follow up time ranged from 6 to 36 months, averagely (15.6±7.5) months. There was no pedicle screw loosen or fracture. The low back pain VAS decreased from preoperative 6.7±2.3 to 1.4±0.8 at the latest follow-up, which was statistically difference(@*CONCLUSION@#Oblique lateral interbody fusion technique provides a new method for minimally invasive fusion of lumbar internal fixation. However, it has a risk of vascular injury. In order to effectively prevent the occurrence of vascular injury, the operative indications and careful and meticulous operation should be strictly grasped.


Assuntos
Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Vértebras Lombares/cirurgia , Região Lombossacral , Parafusos Pediculares , Estudos Retrospectivos , Fusão Vertebral/efeitos adversos , Resultado do Tratamento , Lesões do Sistema Vascular/cirurgia
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