Nakano Naoki, Matsumoto Tomoyuki, Muratsu Hirotsugu, Ishida Kazunari, Kuroda Ryosuke, Kurosaka Masahiro
. Kobe University, Graduate School of Medicine, Department of Orthopaedic Surgery, Chuo-ku, Kobe, Japan.
. Steel Memorial Hirohata Hospital, Department of Orthopaedic Surgery, Hirohata-ku, Himeji, Japan.
Acta Ortop Bras. 2016 Nov-Dec;24(6):304-308. doi: 10.1590/1413-785220162406146213.
To determine whether the second-generation constrained condylar prosthesis provided satisfactory results in revision total knee arthroplasty.
A series of 41 cases of revision total knee arthroplasty using the second-generation constrained condylar knee prosthesis was reviewed. The series comprised 7 men and 34 women with a mean age of 73.2 years. The original diagnosis was predominantly osteoarthritis. The most common reason for revision surgery was aseptic loosening. The mean interval between the primary and revision surgeries was 66.4 months. The mean follow-up period was 49.4 months.
The mean Knee Society knee score improved from 43.8 to 82.9 after revision surgery, the mean Knee Society function score improved from 37.1 to 79.2; the range of motion improved from 95.6° to 105.6° and the radiological femorotibial alignment improved from 181.4° (varus 6.4°) to 174.9° (valgus 0.1°), on average (<0.001 at all items).
Revision total knee arthroplasty with the use of the second-generation constrained condylar knee prosthesis yielded reproducible clinical success. Level of Evidence IV, Case series.
确定第二代限制性髁假体在全膝关节置换翻修术中是否能提供满意的效果。
回顾了一系列41例使用第二代限制性髁膝关节假体进行全膝关节置换翻修术的病例。该系列包括7名男性和34名女性，平均年龄73.2岁。最初诊断主要为骨关节炎。翻修手术最常见的原因是无菌性松动。初次手术与翻修手术之间的平均间隔时间为66.4个月。平均随访期为49.4个月。
翻修手术后，膝关节协会膝关节平均评分从43.8提高到82.9，膝关节协会功能平均评分从37.1提高到79.2；活动范围从95.6°提高到105.6°，放射学上的股胫对线从181.4°（内翻6.4°）平均改善到174.9°（外翻0.1°）（所有项目均<0.001）。
使用第二代限制性髁膝关节假体进行全膝关节置换翻修术取得了可重复的临床成功。证据等级IV，病例系列。
