Preparation of the flexion gap affects the extension gap in total knee arthroplasty
Preparation of the flexion gap affects the extension gap in total knee arthroplasty
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DOI：
10.1016/j.arth.2003.12.085
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发表时间：
2005-08-01
影响因子：
3.5
通讯作者：
Takaoka, K
中科院分区：
文献类型：
--
作者：
Sugama, R;Kadoya, Y;Takaoka, K
对50例接受全膝关节置换术的内翻性骨关节炎膝关节，测量了屈曲间隙准备引起的伸展间隙变化。首先准备伸展间隙，然后在准备屈曲间隙之前和之后进行测量。内侧和外侧的伸展间隙均显著增加（分别为19.3 +/- 0.3至22.0 +/- 0.3和21.9 +/- 0.3至24.0 +/- 0.3 mm，平均SE，均P <0.0001）。内侧增加更大（P = 0.0014），内翻畸形更多的膝关节（>= 10度，P = 0.0075）。因此，屈曲间隙的准备导致伸展间隙显著扩大，尤其是在内侧。内侧松解应逐步保守，以达到充分的软组织平衡。
Changes in the extension gap caused by the preparation of the flexion gap were measured in 50 varus osteoarthritic knees undergoing total knee arthroplasty. The extension gap was first prepared and then measured before and after preparation of the flexion gap. The extension gap increased significantly on both the medial and lateral sides (19.3 +/- 0.3 to 22.0 +/- 0.3 and 21.9 +/- 0.3 to 24.0 +/- 0.3 mm, respectively, mean SE, both P < .0001). The increase was greater medially (P = .0014), and in the knees with more varus deformities (>= 10 degrees, P = .0075). Thus, preparation of the flexion gap resulted in significant widening of the extension gap, especially on the medial side. The medial release should be stepwise and conservative to achieve adequate soft tissue balance.