保留交叉韧带的全膝关节置换术后稳定性对活动范围的影响。
Influence of stability on range of motion after cruciate-retaining TKA.
作者信息
Yamakado Kotaro, Kitaoka Katsuhiko, Yamada Hiroshi, Hashiba Kensaku, Nakamura Ryuichi, Tomita Katsuro
机构信息
Department of Orthopaedic Surgery, School of Medicine, Kanazawa University, 13-1, Takara-machi, Kanazawa, 920-8641, Japan.
出版信息
Arch Orthop Trauma Surg. 2003 Feb;123(1):1-4. doi: 10.1007/s00402-002-0453-0. Epub 2002 Nov 16.
BACKGROUND
A loosely balanced total knee arthroplasty (TKA) is reported to produce a good postoperative range of motion (ROM), but too much laxity is thought to be the cause of persistent pain and worsened functionality.
METHODS
The anteroposterior and mediolateral laxity values were measured to evaluate the influence of stability after cruciate-retaining (CR) TKA on ROM and the modified Knee Society score at 4-8 years after the operation. Twenty-one knees in 15 patients with an average age of 68 years who had undergone a CR TKA for osteoarthrosis were examined. The mean preoperative and postoperative ROM was 124 degrees and 112 degrees, respectively. The mean anteroposterior and mediolateral laxity values were 9.7 mm and 10.6 degrees, respectively.
RESULTS
No correlation was found between the postoperative ROM and laxity or between the modified Knee Society score and laxity. A loosely balanced TKA did not produce a good postoperative ROM. No parameters suggested that lax knees showed a higher pain score and lower functional score than stable knees.
背景
据报道，轻度平衡的全膝关节置换术（TKA）可产生良好的术后活动范围（ROM），但人们认为过度松弛是持续疼痛和功能恶化的原因。
方法
测量前后和内外侧松弛值，以评估保留交叉韧带（CR）的TKA术后稳定性对术后4至8年ROM和改良膝关节协会评分的影响。检查了15例平均年龄68岁、因骨关节炎接受CR TKA的患者的21个膝关节。术前和术后ROM的平均值分别为124度和112度。前后和内外侧松弛值的平均值分别为9.7毫米和10.6度。
结果
术后ROM与松弛度之间或改良膝关节协会评分与松弛度之间均未发现相关性。轻度平衡的TKA术后ROM不佳。没有参数表明松弛的膝关节比稳定的膝关节有更高的疼痛评分和更低的功能评分。
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