胫骨平台后倾角在膝关节置换术中的应用

The Application of Posterior Tibial Plateau Inclination in Knee Arthroplasty

全膝关节置换术(total knee arthroplasty, TKA)是治疗各类晚期膝关节骨性关节炎疾病的标准手术之一,术后可以明显缓解患者膝关节疼痛,恢复膝关节功能,极大提高生活质量。胫骨平台后倾角(posterior tibial slope, PTS)是TKA中进行胫骨平台截骨和关节假体植入的重要参数,PTS直接决定了下肢力线及关节处力的传导方式,截骨不当会导致力线恢复不良、屈伸间隙失衡和假体松动,影响膝关节功能恢复。尽管PTS在TKA中起到关键作用,但是目前学者和临床医生尚无法确定最佳的截骨角度。因此本文对PTS在TKA中的应用进展进行综述,为TKA中PTS的选择提供参考。

Total Knee Arthroplasty (TKA) is one of the standard operations for the treatment of various ad-vanced osteoarthritis diseases of the knee. It can obviously relieve the pain and restore the function of the knee, greatly improve the quality of life. Posterior tibial slope (PTS) is an important parame-ter in TKA for tibial plateau osteotomy and joint prosthesis implantation. PTS directly determines the line of force of lower limbs and the way of force transmission at joints. Improper osteotomy will lead to poor line of force recovery, flexion-extension gap imbalance and prosthesis loosening, af-fecting the functional recovery of the knee. Although PTS plays a key role in TKA, currently scholars and clinicians are unable to determine the optimal osteotomy angle. Therefore, this paper reviews the application of PTS in TKA, and provides reference for the selection of PTS in TKA.