Factors Affecting the Outcome of Arthroscopy in Early Osteoarthritis of the Knee

Abstract：Objective To achieve the related factors affecting arthroscopy(debridement or microfracturing of chondral defects)in patients with osteoarthritis(OA)of the knee. Methods Retrospective analysis was applied to research 252 pa-tients according with the received criteria. Age,gender,trauma history,preoperative knee standing radiographs of Kellgren-Law-rence( K-L grades) classification,mechanical locking,knee tenderness,meniscus rupture,loose body,preoprative and postoprative Lysholm score were recorded and analyzed. Multi-factor unconditioned Logistic regression analysis was applied to analyze the related factors. Results Except for gender,significant difference could be found in the analysis of all the other fac-tors. According to the results of multi-factor analysis,age,K-L grades,meniscus rupture,mechanical lockingand knee tender-ness were risk factors of no avail. Conclusion High incidence of poor efficacy was discovered in subjects of study with age less than 50 years old,K-L grade 2,mechanical locking symptom,meniscus degeneration or fixed tenderness point.