[Role and controversy of unicompartmental knee arthroplasty in treatment of knee osteoarthritis].

A stepwise algorithm was proposed for the management of knee osteoarthritis.Unicompartmental knee arthroplasty(UKA) is a promising treatment option for unicompartmental knee osteoarthritis and widely used.It just replaces the lesion compartment with many advantages such as a smaller incision, less soft tissue injury, and more rapid recovery.UKA restores the native knee kinematics as the other compartments and knee ligaments are largely retained.Although there were many evidences that UKA could achieve good results when patient selections and surgical techniques were accurate.However, some registry data reported that UKA prostheses had lower survival rates compared to total knee arthroplasty.In this review, we try to analyze the current controversies, and evaluate the status and role for UKA in the treatment of knee osteoarthritis.Good results for knee osteoarthritis could be achieved by selecting appropriate methods and using UKA correctly in the future.随着膝关节骨关节炎阶梯治疗理念的逐步发展，膝关节单髁置换术（UKA）的应用逐渐增多。UKA仅对病变间室进行表面置换，手术创伤小，术后康复快，不损伤膝关节其他结构，术后关节功能及运动学更接近自然关节。虽有大量证据证实，在严格把握手术适应证、手术技术准确的基础上，UKA能取得令人满意的效果，但也有一些关节登记中心的数据表明，与全膝关节置换相比，UKA假体存活率较低。客观地认识UKA在膝关节骨关节炎治疗中的地位与争议，才能把握好这一治疗手段，正确运用于临床，更好地发挥其治疗作用。.