Wayne State University, 10000 Telegraph Road, Taylor, Michigan 48124, USA.
Bone Joint J. 2013 Oct;95-B(10):1348-53. doi: 10.1302/0301-620X.95B10.30541.
The outcome of high tibial osteotomy (HTO) deteriorates with time, and additional procedures may be required. The aim of this study was to compare the clinical and radiological outcomes between unicompartmental knee replacement (UKR) and total knee replacement (TKR) after HTO as well as after primary UKR. A total of 63 patients (63 knees) were studied retrospectively and divided into three groups: UKR after HTO (group A; n = 22), TKR after HTO (group B; n = 18) and primary UKR (group C; n = 22). The Oxford knee score (OKS), Knee Society score (KSS), hip-knee-ankle angles, mechanical axis and patellar height were evaluated pre- and post-operatively. At a mean of 64 months (19 to 180) post-operatively the mean OKS was 43.8 (33 to 49), 43.3 (30 to 48) and 42.5 (29 to 48) for groups A, B and C, respectively (p = 0.73). The mean KSS knee score was 88.8 (54 to 100), 88.11 (51 to 100) and 85.3 (45 to 100) for groups A, B and C, respectively (p = 0.65), and the mean KSS function score was 85.0 (50 to 100) in group A, 85.8 (20 to 100) in group B and 79.3 (50 to 100) in group C (p = 0.48). Radiologically the results were comparable for all groups except for patellar height, with a higher incidence of patella infra following a previous HTO (p = 0.02).
（膝关节）胫骨高位截骨术（HTO）的疗效会随时间而恶化，可能需要进行额外的手术。本研究旨在比较 HTO 后行单髁膝关节置换术（UKR）和全膝关节置换术（TKR）与初次行 UKR 的临床和影像学结果。回顾性研究了 63 例（63 膝）患者，将其分为三组：HTO 后行 UKR（A 组，n = 22）、HTO 后行 TKR（B 组，n = 18）和初次行 UKR（C 组，n = 22）。术前和术后评估牛津膝关节评分（OKS）、膝关节学会评分（KSS）、髋膝踝角、机械轴和髌骨高度。术后平均 64 个月（19 至 180 个月）时，A、B 和 C 组的平均 OKS 分别为 43.8（33 至 49）、43.3（30 至 48）和 42.5（29 至 48）（p = 0.73）。A、B 和 C 组的 KSS 膝关节评分分别为 88.8（54 至 100）、88.11（51 至 100）和 85.3（45 至 100）（p = 0.65），A 组的 KSS 功能评分平均为 85.0（50 至 100），B 组为 85.8（20 至 100），C 组为 79.3（50 至 100）（p = 0.48）。除髌骨高度外，所有组的结果均相似，既往 HTO 后髌骨低位的发生率较高（p = 0.02）。
