人工全膝关节置换术截骨测量(英文)

Measurement of resection heights in primary total knee arthroplasty

[目的]作者对人工全膝关节置换术中股骨截骨方法进行了改良,增加了股骨后髁截骨厚度,本项研究通过截骨厚度的测量对改良截骨方法的手术效果进行了验证。[方法]对81例人工全膝关节置换术中的各向截骨骨块的厚度进行了测量,分为膝内翻和膝外翻两组,采用Student's t-test对截骨厚度和假体厚度进行了比较。[结果]总体截骨厚度在膝间隙和伸膝间隙均小于假体厚度。膝内翻组,外侧屈膝间隙存在微量的过度截骨;膝外翻组,内侧屈膝间隙存在微量的过度截骨。[结论]采用改良的股骨截骨方法,手术效果良好。

[ Objective] A modified femoral resection method was introduced for total knee replacement,by which the resection of the posterior femoral condyle was increased. This study is to verify the accuracy of resection. [Methods] In 81 knees undergoing total knee replacement, the thickness of various cuts were measured and compared with the height of the implants. The mean values of these measurements were calculated ,and comparisons were made according to the mechanical axis using Student＇s t-test. [ Results ] On average, the thickness of bone resection in both the flexion and the extension gap was smaller than the thickness of the prosthesis. In the varus group a minimum lateral over-resection in the flexion gap was found,and in valgus group a minimum medial over-resection in the flexion gap was found. [ Conclusion] The early clinical results with this modified resection method are good.