Lisowski L A, Meijer L I, van den Bekerom M P J, Pilot P, Lisowski A E
BovenIJ Hospital, Statenjachtstraat 1, 1034 CS Amsterdam, The Netherlands.
OLVG Oost, Oosterpark 9, 1091 AC Amsterdam, The Netherlands.
Bone Joint J. 2016 Oct;98 B(10 Supple B):41-47. doi: 10.1302/0301-620X.98B10.BJJ-2016-0474.R1.
The interest in unicompartmental knee arthroplasty (UKA) for medial osteoarthritis has increased rapidly but the long-term follow-up of the Oxford UKAs has yet to be analysed in non-designer centres. We have examined our ten- to 15-year clinical and radiological follow-up data for the Oxford Phase III UKAs.
Between January 1999 and January 2005 a total of 138 consecutive Oxford Phase III arthroplasties were performed by a single surgeon in 129 patients for medial compartment osteoarthritis (71 right and 67 left knees, mean age 72.0 years (47 to 91), mean body mass index 28.2 (20.7 to 52.2)). Both clinical data and radiographs were prospectively recorded and obtained at intervals. Of the 129 patients, 32 patients (32 knees) died, ten patients (12 knees) were not able to take part in the final clinical and radiological assessment due to physical and mental conditions, but via telephone interview it was confirmed that none of these ten patients (12 knees) had a revision of the knee arthroplasty. One patient (two knees) was lost to follow-up.
The mean follow-up was 11.7 years (10 to 15). A total of 11 knees (8%) were revised. The survival at 15 years with revision for any reason as the endpoint was 90.6% (95% confidence interval (CI) 85.2 to 96.0) and revision related to the prosthesis was 99.3% (95% CI 97.9 to 100). The mean total Knee Society Score was 47 (0 to 80) pre-operatively and 81 (30 to 100) at latest follow-up. The mean Oxford Knee Score was 19 (12 to 40) pre-operatively and 42 (28 to 55) at final follow-up. Radiolucency beneath the tibial component occurred in 22 of 81 prostheses (27.2%) without evidence of loosening.
This study supports the use of UKA in medial compartment osteoarthritis with excellent long-term functional and radiological outcomes with an excellent 15-year survival rate. Cite this article: Bone Joint J 2016;98-B(10 Suppl B):41-7.
内侧骨关节炎单髁膝关节置换术（UKA）的关注度迅速上升，但牛津单髁膝关节置换术在非指定中心的长期随访情况尚未得到分析。我们对牛津Ⅲ期单髁膝关节置换术10至15年的临床和放射学随访数据进行了研究。
1999年1月至2005年1月期间，一名外科医生为129例患者连续实施了138例牛津Ⅲ期关节置换术，用于治疗内侧间室骨关节炎（71例右侧膝关节和67例左侧膝关节，平均年龄72.0岁（47至91岁），平均体重指数28.2（20.7至52.2））。前瞻性记录并定期获取临床数据和X光片。129例患者中，32例患者（32个膝关节）死亡，10例患者（12个膝关节）因身体和精神状况无法参与最终的临床和放射学评估，但通过电话访谈确认这10例患者（12个膝关节）均未进行膝关节置换翻修手术。1例患者（2个膝关节）失访。
平均随访时间为11.7年（10至15年）。共有11个膝关节（8%）进行了翻修。以任何原因进行翻修为终点的15年生存率为90.6%（95%置信区间（CI）85.2至96.0），与假体相关的翻修为99.3%（95%CI 97.9至100）。术前膝关节协会总评分平均为47分（0至80分），最近一次随访时为81分（30至100分）。术前牛津膝关节评分为19分（12至40分），最终随访时为42分（28至55分）。81个假体中有22个（27.2%）出现胫骨部件下方的透亮区，但无松动迹象。
本研究支持在治疗内侧间室骨关节炎中使用单髁膝关节置换术，其长期功能和放射学结果良好，15年生存率优异。引用本文：《骨与关节杂志》2016年；98-B（10增刊B）：41-7。
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