Qi Yan-Song, Wang Hai-Jun, Wang Shao-Jie, Zhang Zheng-Zheng, Huang Ai-Bing, Yu Jia-Kuo
Institute of Sports Medicine, Peking University Third Hospital, No. 49, North Garden Road, Haidian District, Beijing, China.
BMC Musculoskelet Disord. 2016 Jan 27;17:45. doi: 10.1186/s12891-016-0896-z.
Posterior Cruciate Ligament (PCL) ruptures are common sports injuries. One of the key controversies in PCL reconstruction is whether double-bundle reconstruction provides biomechanical and clinical outcomes superior to single-bundle reconstruction.
We performed a comprehensive search in multiple databases to evaluate the advantages of single-bundle or double bundle reconstructions in anteroposterior stability, graft tension, rotational stability, and functional outcome.
Biomechanical comparisons evaluating anteroposterior stability described either no difference or increased stability in double-bundle reconstructions. Comparing these results is complicated by different graft choices, tensioning techniques, and tunnel positions. Biomechanical studies of graft tension demonstrated conflicting results regarding the optimal reconstruction technique. Seven retrospective clinical studies of single- and double-bundle reconstructions with methodological limitations reported no difference in clinical outcome.
The superiority of single-bundle or double-bundle posterior cruciate ligament reconstruction remains uncertain.
后交叉韧带（PCL）断裂是常见的运动损伤。PCL重建的关键争议之一是双束重建在生物力学和临床效果上是否优于单束重建。
我们在多个数据库中进行了全面检索，以评估单束或双束重建在前、后稳定性、移植物张力、旋转稳定性和功能结果方面的优势。
评估前后稳定性的生物力学比较表明，双束重建要么没有差异，要么稳定性增加。由于移植物选择、张紧技术和隧道位置不同，比较这些结果很复杂。移植物张力的生物力学研究在最佳重建技术方面得出了相互矛盾的结果。七项对单束和双束重建进行的回顾性临床研究存在方法学局限性，报告临床结果无差异。
单束或双束后交叉韧带重建的优越性仍不确定。
