Influence of collateral ligament laxity on patient satisfaction after total knee arthroplasty: a comparative bilateral study
Influence of collateral ligament laxity on patient satisfaction after total knee arthroplasty: a comparative bilateral study
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DOI：
10.1007/s00402-004-0700-7
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发表时间：
2004-07-01
影响因子：
2.3
通讯作者：
Votruba, T
中科院分区：
文献类型：
--
作者：
Kuster, MS;Bitschnau, B;Votruba, T
导论.正确的韧带平衡是全膝关节置换术（TKA）临床结局的重要决定因素。在TKA植入过程中，许多外科医生更喜欢使用绷紧的膝关节而不是松弛的膝关节。本研究的假设是，膝关节稍松的患者在TKA植入后的表现可能优于膝关节紧的患者。患者和方法。对22例双侧膝关节置换术患者进行了临床和影像学评价，平均随访时间为4.5年，范围为2 - 7年。有12名女性和10名男性，手术时平均年龄为68.9岁（范围32-82岁）。比较改良HSS评分（不包括松弛度）、膝关节屈曲30 °时的内翻和外翻应力X线片以及双膝的主观结局。在应力X线片上，膝关节张开度小于40度被认为是紧的，如果张开度大于或等于40度则被认为是松的。结果膝关节松弛者的活动度和HSS评分有改善的趋势。然而，差异未达到统计学显著性。22例患者中有11例主观认为一侧优于另一侧。在这11例TKA中，10例患者的首选侧为松弛膝关节（p
Introduction. Correct ligamentous balancing is an important determinant of the clinical outcome in total knee arthroplasty (TKA). Many surgeons prefer a tight rather than a lax knee during implantation of a TKA. The hypothesis in this study was that patients with a slightly laxer knee joint might perform better than patients with a tight knee joint after implantation of a TKA. Patients and methods. Twenty-two patients with bilateral knee arthroplasties were clinically and radiologically evaluated at a mean follow-up of 4.5 years, ranging from 2 to 7 years. There were 12 women and 10 men with an average age of 68.9 years (range 32-82 years) at the time of surgery. A modified HSS score (excluding laxity), varus and valgus stress X-rays in 30degrees of knee flexion, and the subjective outcome of both knees were compared. A knee was considered tight when it opened less than 4degrees and lax if it opened 4degrees or more on stress X-ray. Results. There was a trend towards improved range of motion and HSS score for the laxer knee joints. However, the difference did not achieve statistical significance. Eleven of the 22 patients considered one side subjectively better than the other side. In 10 out of these 11 TKA, the slacker knee joint was the preferred side (p