Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland.
Ir J Med Sci. 2010 Sep;179(3):361-4. doi: 10.1007/s11845-009-0454-x. Epub 2009 Dec 2.
Unicondylar knee arthroplasty (UKA) is argued to be a conservative procedure which permits a later total knee arthroplasty (TKA) should it be required.
The aims of the study were to assess the modes of early failure of UKA and see whether the conversion to TKA improved the functional scores, range of motion, pain and patient satisfaction.
Fourteen revision procedures performed after failed unicompartmental knee arthroplasty (UKA) were evaluated. Patient demographics, modes of failure and technical issues relating to revision were noted. Post-operative functional outcome was assessed using WOMAC osteoarthritis index and SF-36 scores.
Thirteen percent of primary UKA performed were revised to TKA. Eighty-six percent of the revisions were required within the first 12 months. Revision procedure was complex in nearly half of the cases. There was no significant improvement in post-operative functional scores.
Results of conversion of UKA to TKA are less satisfactory than primary TKA.
单髁膝关节置换术（UKA）被认为是一种保守的手术方法，如果需要，它可以进行后期的全膝关节置换术（TKA）。
本研究旨在评估 UKA 早期失败的模式，并观察是否将其转换为 TKA 可以改善功能评分、运动范围、疼痛和患者满意度。
评估了 14 例在单髁膝关节置换术（UKA）失败后进行的翻修手术。记录了患者的人口统计学资料、失败模式以及与翻修相关的技术问题。使用 WOMAC 骨关节炎指数和 SF-36 评分评估术后功能结果。
13%的初次 UKA 需要翻修为 TKA。86%的翻修在最初的 12 个月内进行。近一半的翻修手术较为复杂。术后功能评分没有显著改善。
将 UKA 转换为 TKA 的结果不如初次 TKA 满意。
