Objective To explore the operative technique and early clinical effect of chinese-made unicondylar arthroplasty for varus knee osteoarthritis.Methods From April 2021 to April 2022,32 patients with varus knee osteoarthritis were treated with minimally invasive domestic unicondylar arthroplasty.An 8 cm oblique incision was made on the medial side of the knee,and the tibial condyle osteotomy was performed by intramedullary localization,with longitudinal osteotomy followed by horizontal oste-otomy,and the femoral condyle osteotomy was performed using a femoral guide device,the proper prosthesis was selected,the bal-ance of extension and flexion and the stability of knee joint were confirmed repeatedly during operation,and the postoperative complications and imaging results were recorded.The hip-ankle angle,proximal medial angle of tibia,knee range of motion,OKS score and KSS score were compared before and after operation.Results All patients were followed up for an average of 8.0(4-16)months.The average length of stay was 7.0(5-10)days.The X-ray film of the last follow-up showed that the varus deformity of the lower limb was corrected,and there were no prosthesis malposition or loosening,nor was there infection and prosthesis revi-sion.The angle of hip,knee and ankle at the last follow-up was smaller than that before operation,the difference was significant(P＜0.05).The medial angle of proximal tibia was larger than that before operation in the last follow-up(P＜0.05).The range of mo-tion of knee joint at the last follow-up was greater than that before operation,and the difference was significant(P＜0.05).The OKS score at the last follow-up was significantly lower than that before operation(P＜0.05).The KSS score at the last follow-up was significantly higher than that before operation(P＜0.05).Conclusion The chinese-made unicondylar arthroplasty for the treatment of varus knee osteoarthritis is straightforward,with good recovery of knee function,fewer complications and less trauma.
维普
万方数据