【Abstract】 ObjectiveTo observe the clinical efficacy of arthroscopic partial debridement combined with high fibular osteotomy for knee osteoarthritis(KOA). MethodsThirtytwo elderly patient (age＞50 yeras) with KOA underwent arthroscopic partial debridement combined with high fibular osteotomy. Preoperative and postoperative medial intraarticular space and Visual Analogue Scale (VAS), introperative articular injury under arthroscope, American knee society knee score (KSS) were recorded. The pain relief, changes of force line, improvement of knee joint function and surgical efficacy were analyzed.synthetically. ResultsOf 32 patients undergoing Arthroscopic partial debridement, partial meniscectomy was conducted in 20 patients, removal of loose bodiesin 8 patients，removal of osteophyte in 4 patients．The cartilage injury with different degrees occurred in all casesThe highest incidence of cartilage injury was found in the trochlea area of femur and patella, and the management was performed according to the damage degree. The postoperative VAS wasa significantly lower than preoperative score ［(2.4±0.8) scores vs. (7.3±0.5) scores］. The postoperative femoral tibial angle was significantly improved compared to the preoperative angle［（170.4±1.8）°vs.（185.7±2）°］. medial intraarticular space obtained recovery with different degrees, and significant difference was observed between preoperative and postoperative space(P＜0.01). The postoperative knee joint score and function score of KSS were (91.12±4.17) scores and (90.69±5.17) scores respectively, and significant difference was observed between preoperative and postoperative scores(P＜0.01). A total of 17 cases were assessed as excellent, 10 as good, 3 as common and 2 as poor, and the excellencegood rate was 84.38%. ConclusionFor KOA, arthroscopic partial debridement combined with high fibular osteotomy not only can remove synovial inflammation causes, but also can change knee mechanics structure by , thus can alleviate the further development of osteoarthritis.

无