外侧关节面切除术降低全膝关节置换术中髌股关节接触压力：一项尸体研究。
Lateral facetectomy decreased patellofemoral contact pressure in total knee replacement: A cadaveric study.
作者信息
Yuenyongviwat Varah, Iamthanaporn Khanin, Hongnaparak Theerawit
机构信息
Department of Orthopaedic Surgery and Physical Medicine, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
出版信息
J Clin Orthop Trauma. 2017 Jan-Mar;8(1):82-84. doi: 10.1016/j.jcot.2016.07.007. Epub 2016 Aug 2.
BACKGROUND
To study the patellofemoral contact pressure in patellar non-resurfacing total knee replacement after lateral facetectomy in different amounts of bone removal.
METHODS
Eight knees from four fresh-frozen whole body cadavers were used for this study. Total knee replacement of all knees was performed by the same surgical technique. The contact pressure was measured and recorded when the knee performed passive motion from full extension to full flexion in native patella, lateral retinacular junction release, 10% lateral facetectomy, and 20% lateral facetectomy.
RESULTS
Peak patellofemoral contact pressure decreased progressively from native patellar, junctional release of the patella, 10% facetectomy, and 20% facetectomy. The peak patellofemoral contact pressures were statistically significantly different in each patellar condition ( = 0.025).
CONCLUSION
In the experimental study, lateral facetectomy can reduce the peak patellofemoral contact pressure in patellar non-resurfacing total knee arthroplasty.
背景
研究不同程度切骨量的外侧小面切除术后，髌骨不置换全膝关节置换术中的髌股关节接触压力。
方法
本研究使用了来自4具新鲜冷冻尸体的8个膝关节。所有膝关节均采用相同的手术技术进行全膝关节置换。在膝关节从完全伸展到完全屈曲的被动运动过程中，分别测量并记录在天然髌骨、髌外侧支持带松解、10%外侧小面切除和20%外侧小面切除情况下的接触压力。
结果
髌股关节峰值接触压力从天然髌骨、髌外侧支持带松解、10%小面切除到20%小面切除逐渐降低。每种髌骨情况下的髌股关节峰值接触压力在统计学上有显著差异（P = 0.025）。
结论
在本实验研究中，外侧小面切除可降低髌骨不置换全膝关节置换术中的髌股关节峰值接触压力。
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