Höger Svenja, Siebenlist Sebastian, Mehl Julian, Achtnich Andrea
Sektion Sportorthopädie, TUM Universitätsklinikum , Ismaninger Str. 22, 81675, München, Deutschland.
Oper Orthop Traumatol. 2025 Sep 5. doi: 10.1007/s00064-025-00916-7.
Anatomical reconstruction of the posterior cruciate ligament (PCL) with suture tape augmentation to enhance primary stability.
Acute or chronic PCL ruptures, either isolated or as part of multiligamentous injuries, in cases of symptomatic instability or failure of conservative treatment.
Fixed posterior drawer, active infection, bony avulsion.
Supine positioning, use of standard portals for arthroscopic PCL reconstruction. Femoral and tibial tunnels are created using a targeting device following preparation of the insertion sites. The hamstring graft is augmented with nonresorbable suture tape. The augmentation suture is fixed separately using a suture anchor under continuous anterior drawer stress. Graft fixation is performed via extracortical device at the femur and with an interference screw at the tibia.
Six weeks of extension bracing with posterior tibial support, worn 24 h/day, and 20 kg partial weight-bearing. This is followed by 6 weeks of continued mobile bracing with posterior tibial support and progressive mobilization and load increase, accompanied by physiotherapy.
Biomechanical and early clinical studies suggest promising benefits of augmentation for stability and function, though robust long-term data are still lacking.
采用缝线带加强技术对后交叉韧带(PCL)进行解剖重建,以增强初始稳定性。
急性或慢性PCL断裂,无论是孤立性的还是作为多韧带损伤的一部分,出现症状性不稳定或保守治疗失败的情况。
固定性后抽屉试验阳性、活动性感染、骨撕脱。
仰卧位,采用标准关节镜入路进行PCL重建。在准备好植入部位后,使用瞄准装置创建股骨和胫骨隧道。腘绳肌移植物用不可吸收缝线带加强。在持续前抽屉应力下,使用缝线锚钉分别固定加强缝线。移植物在股骨处通过皮质外装置固定,在胫骨处通过挤压螺钉固定。
使用带胫骨后支撑的伸直支具6周,每天佩戴24小时,部分负重20公斤。之后继续使用带胫骨后支撑的可移动支具6周,并逐渐进行活动和增加负荷,同时进行物理治疗。
生物力学和早期临床研究表明,加强技术对稳定性和功能有良好的效果,尽管仍缺乏有力的长期数据。