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Objective:To investigate the orthopedists' cognition on Chinese Osteoarthritis Guideline (2018 Edition).Methods:Questionnaire about Chinese Osteoarthritis Guideline (2018 Edition) was developed and sent to orthopedists via an invitation link to fill out after authorization from Chinese Osteoarthritis Association. The content of the questionnaire included the basic personal information of the physician, the awareness rate of the guidelines, the evaluation of the guidelines, and its application effects. The survey duration was from September 2019 to December 2019. Multivariate logistic regression and linear regression analysis were performed for the guideline awareness rate and comprehensive score, respectively.Results:A total of 628 physicians completed the questionnaire, of which 623 of 628 (99.2%) were available. About 72.4% of the orthopedists knew the guideline. The awareness rate was statistically related to the education of the physicians ( P<0.05). Respondents' overall score for the guideline was 8.39 with methodological score 8.28. A total of 41.2% of orthopedists thought that the guideline was very good compared with the European and American guidelines, and the clinical problem coverage rate was 78.6%. There is a statistically significant difference in the appraisal of the recommendations ( χ2=138.9, P<0.05) . More than 40% of orthopedists believed that the guidelines were of great help to orthopedists and patients, and that the guide could be promoted to the primary hospitals. Conclusion:After one year publication of Chinese Osteoarthritis Guideline (2018 Edition), most orthopedists have understood the present guideline and applied recommendations in clinical practice. However, the guideline need to be further promoted and disseminated in the future.
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Objective: To summarize the latest research progress of early postoperative rehabilitation for acute Achilles tendon rupture after surgical repair. Methods: The high-quality randomized controlled trials and systematic reviews/meta-analyses regarding early postoperative rehabilitation for acute Achilles tendon rupture in recent years were reviewed. Results: There are three functional rehabilitations after acute Achilles tendon rupture surgery, including early postoperative mobilization, early weight-bearing with immobilization, and early weight-bearing combined with mobilization. The results of randomized controlled trials show that the effectiveness of early postoperative rehabilitation is similar or better than the early postoperative immobilization. The results of systematic reviews/meta-analyses show that the early postoperative rehabilitation is beneficial to the early function recovery of the Achilles tendon, can reduce the time for functional recovery, and do not adversely affect the outcomes. Conclusion: Early postoperative rehabilitation is beneficial to the functional recovery, and do not increase postoperative complications. There is still no uniform protocol of early postoperative rehabilitation and the timing of weight-bearing, and further studies are needed in the future.
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BACKGROUND:Fetal bovine serum as nutritional support is often used in the traditional cel culture. Consequently, a host of potential problems such as the spread of disease and immunological reactions exist. To find a suitable fetal bovine serum substitute and to establish a culture system of human bone marrow stromal stem cels in vitro which has been standardized, safe and efficient has just started. OBJECTIVE:To investigate the effects of different serums on proliferation of bone marrow stromal stem celsin vitro. METHODS:Bone marrow stromal stem cels were obtained from adult bone marrow, which were cultured in DMEM containing 10% AB serum, 10% autologous serum, or 10% fetal bovine serum. Cels at passage 3 were used in this study. RESULTS AND CONCLUSION:The cel confluence in the AB serum group was earlier than that in the fetal bovine serum group and autologous serum group. Human bone marrow stromal stem cels maintained the phenotypes of bone marrow stem cels in three serums detected by flow cytometry. AB serum group showed the highest fluorescence intensity and the most efficiency of cel proliferation which examined by the AlamarBlue assay. Apoptosis rate was < 5% in al the three groups, and cels grew wel in these serums. Alkaline phosphatase, calcium nodules and oil red O staining showed that the cels maintained the osteogenesis and adipogenesis capacity in the three groups. AB serum was found to have a better effect on proliferation capability of cels than fetal bovine serum and autologous serum. Taken together, AB serum is expected to be a substitute of fetal bovine serum to build anin vitro culture system of adult bone marrow stromal stem cels that accord with the clinical requirements of bone tissue engineering.
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BACKGROUND:Computer-assisted navigation technique has been widely applied in total knee arthroplasty. However, whether computer-assisted navigation total knee arthroplasty is better than traditional total knee arthroplasty remains unclear. OBJECTIVE:To systemical y evaluate and compare the limb and prosthesis alignment restoration post computer-assisted navigation and traditional total knee arthroplasty. METHODS:The PubMed/Medline, EMBASE, Cochrane CENTRAL, ScienceDirect database were searched from established to June 2013 and the randomized control ed trials about computer-assisted navigation and traditional total knee arthroplasty were selected. Meta analysis was performed with Rev Man 5.2 software. The evaluating data included the hip-knee-ankle mechanical axis or tibiofemoral angle, femoral prosthesis coronal angle, femoral prosthesis sagittal angle, tibial prosthesis coronal angle, and tibial prosthesis sagittal angle. The malalignment was defined as a deviation 2° or 3° from the natural line. RESULTS AND CONCLUSION:19 randomized control ed trials involving 2 654 cases (3 392 knees) were included in this study. Meta-analysis showed that, the limb alignment restoration post computer-assisted navigation was significantly better than traditional total knee arthroplasty (3°, P<0.000 01 and 2°, P=0.000 8). The 3° of femoral prosthesis coronal angle deviation post computer-assisted navigation was significantly superior to traditional total knee arthroplasty (P=0.002), while the 2° deviation had no significant difference between the two surgeries (P=0.290). The 3° deviation of femoral prosthesis sagittal angle post computer-assisted navigation was significantly better than traditional total knee arthroplasty (P=0.040);however, the 2° deviation had no significant difference between the two surgeries (P=0.950). 3° and 2°tibial prosthesis coronal angle deviation post computer-assisted navigation was significantly superior to traditional total knee arthroplasty (3°, P=0.030);the 2° deviation had no significant difference between the two surgeries (P=0.260). Computer-assisted navigation has better limb alignment, femoral and tibial prosthesis alignment 3° deviation than the traditional total knee arthroplasty, but the 2° deviation of femoral prosthesis coronal angle, femoral prosthesis sagittal angle, and tibial prosthesis sagittal angle had no significant difference between the two surgeries.