Zhang Qidong, Guo Wanshou, Liu Zhaohui, Cheng Liming, Yue Debo, Zhang Nianfei
Acta Orthop Belg. 2015 Jun;81(2):333-9.
This study was conducted to compare the differences of the outcome and surgical technique for minimally invasive unicompartmental knee arthroplasty(UKA) in treatment of osteonecrosis versus osteoarthritis. Twenty-nine spontaneous osteonecrosis of the knee (SONK) cases were reviewed retrospectively. An equal number of patients with osteoarthritis (OA) performed in the same period were selected and matched with respect to age, preoperative range of motion and radiological grade of knee arthrosis. The mean follow up time were 44.14±14.05 and 44.45±14.45 months, respectively. The preoperative hospital for special surgery knee score and visual analogue score were significantly better in group OA than those of group SONK. However, the results were comparable in terms of postoperative pain, knee score, range of motion and axial alignment. From a technical point of view, the osteonecrosis stage and bone defect must be taken into account when using UKA for SONK.
本研究旨在比较微创单髁膝关节置换术（UKA）治疗膝关节骨坏死与骨关节炎在疗效和手术技术上的差异。回顾性分析了29例膝关节自发性骨坏死（SONK）病例。选取同期行UKA的相同数量骨关节炎（OA）患者，在年龄、术前活动范围和膝关节退变放射学分级方面进行匹配。平均随访时间分别为44.14±14.05个月和44.45±14.45个月。OA组术前特种外科医院膝关节评分和视觉模拟评分显著优于SONK组。然而，术后疼痛、膝关节评分、活动范围和轴向对线方面的结果具有可比性。从技术角度来看，将UKA用于SONK时必须考虑骨坏死阶段和骨缺损情况。
