The motion function analysis after high tibial osteotomy and unicompartmental knee arthroplasty in the treatment of K-L grade Ⅲ medial compartment osteoarthritis of the knee joint
Objective:This study aimed to compare the motion function outcomes following high tibial osteotomy(HTO)and unicompartmental knee arthroplasty(UKA)in patients with K-L grade Ⅲ medial compartment knee osteoarthritis(OA).Method:A retrospective analysis was conducted on patients with K-L grade Ⅲ medial compartment OA who underwent either HTO or UKA from January 2017 to December 2020.The patients were matched by age and gender.Motor function was evaluated based on the knee injury and osteoarthritis outcome score(KOOS),physical activity rating scale(PARS-3)and Tegner activity scale,assessing sports injury,exercise volume and motor ability.Results:The follow-up time for the HTO group was 24-45 months,with an average of(31.1±4.3)months;The follow-up time for the UKA group was 24-38 months,with an average of(29.8±3.5)months.At 3 and 6 months postoperatively,the UKA group exhibited significantly higher KOOS,PARS-3,and Tegner activity scores compared to the HTO group(all P<0.05).However,at 12 and 24 months postoperatively,there were no significant differences in the scores between the two groups(all P>0.05).The UKA group required significantly less time to return to pre-disease levels of exercise volume and motor ability compared to the HTO group(both P<0.05).Compared to the UKA group,a greater number of patients in the HTO group achieved higher levels of exercise volume and motor ability within 2 years(both P<0.05).Conclusions:For patients with K-L grade Ⅲ medial compartment OA,UKA provides quicker recovery of knee joint motor function in the early postoperative period.However,at 2 years postoperatively,HTO demonstrated superior outcomes in achieving higher levels of exercise volume and motor ability.
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