Sports Health. 2018 Nov/Dec;10(6):495-499. doi: 10.1177/1941738118768812. Epub 2018 Apr 11.
: Return to play (RTP) of National Football League (NFL) athletes after isolated anterior cruciate ligament (ACL) tears has been reported. However, no studies have reported on RTP of NFL athletes after multiligament knee injuries.
: NFL athletes with multiligament knee injuries have lower RTP rates and longer recoveries than athletes with isolated ACL tears. Second, athletes with ACL and medial collateral ligament (MCL) injuries will have higher RTP rates and shorter time to RTP than athletes with an ACL tear and posterolateral corner involvement.
: Retrospective cohort study.
: Level 4.
: Publicly available NFL injury data were reviewed for all multiligament knee injuries incurred between 2000 and 2016 with RTP information. Athletes were excluded if RTP was limited for reasons unrelated to the injury. Extracted data included type of injury, RTP, time to RTP (days), number and percentage of games played, and performance.
: A total of 50 NFL athletes with multiligament knee injuries met inclusion and exclusion criteria. The overall RTP rate was 64.0%. Athletes with ACL/MCL tears had an RTP rate of 70.8%, whereas athletes with ACL and posterior collateral ligament/lateral collateral ligament (PCL/LCL) tears had an RTP rate of 55.6% ( P = 0.26). Mean time to RTP for all 50 athletes was 388.71 ± 198.52 days. The mean time to RTP for athletes with ACL/MCL injuries was 305.1 ± 58.9 days, compared with 459.2 ± 245.1 days ( P = 0.004) and 609.3 ± 183.1 days ( P < 0.0001) for those with combined ACL and PCL/LCL injuries and frank knee dislocations, respectively. Athletes with ACL/MCL injuries were more likely to return to prior performance level (43.5%) than those with ACL and PCL/LCL injuries (18.5%) ( P < 0.001).
: The RTP rate for athletes with multiligament knee injuries is significantly less than the RTP rate for athletes with isolated ACL tears. In addition, athletes with ACL and MCL tears have a higher RTP rate, a significantly shorter time to RTP, and a greater likelihood of returning to prior performance than athletes with ACL and PCL/LCL tears.
: Multiligament knee injuries significantly affect the ability of a football player to return to sport. ACL and MCL tears are associated with better RTP prognosis compared with ACL and PCL/LCL tears.
美国国家橄榄球联盟（NFL）运动员前交叉韧带（ACL）撕裂后重返赛场（RTP）已有报道。然而，尚无研究报告多韧带膝关节损伤后 NFL 运动员的 RTP 情况。
多韧带膝关节损伤的 NFL 运动员的 RTP 率较低，恢复期较长，而 ACL 撕裂的运动员则较短。其次，ACL 和内侧副韧带（MCL）损伤的运动员的 RTP 率较高，而 ACL 和后外侧角损伤的运动员的 RTP 时间较短。
回顾性队列研究。
4 级。
对 2000 年至 2016 年间发生的所有多韧带膝关节损伤的 NFL 损伤数据进行了公开审查，并获得了 RTP 信息。如果 RTP 受到与损伤无关的原因限制，则排除运动员。提取的数据包括损伤类型、RTP、RTP 时间（天）、比赛场次和表现。
共有 50 名多韧带膝关节损伤的 NFL 运动员符合纳入和排除标准。总体 RTP 率为 64.0%。ACL/MCL 撕裂的运动员 RTP 率为 70.8%，而 ACL 和后十字韧带/外侧副韧带（PCL/LCL）撕裂的运动员 RTP 率为 55.6%（P=0.26）。50 名运动员的平均 RTP 时间为 388.71±198.52 天。ACL/MCL 损伤的运动员的平均 RTP 时间为 305.1±58.9 天，而 ACL 和 PCL/LCL 损伤以及真性膝关节脱位的运动员的平均 RTP 时间分别为 459.2±245.1 天（P=0.004）和 609.3±183.1 天（P＜0.0001）。ACL/MCL 损伤的运动员更有可能恢复到之前的运动水平（43.5%），而 ACL 和 PCL/LCL 损伤的运动员为 18.5%（P＜0.001）。
多韧带膝关节损伤运动员的 RTP 率明显低于 ACL 撕裂运动员的 RTP 率。此外，ACL 和 MCL 撕裂的运动员的 RTP 率更高，RTP 时间显著缩短，并且恢复到先前表现的可能性也大于 ACL 和 PCL/LCL 撕裂的运动员。
多韧带膝关节损伤会严重影响足球运动员重返赛场的能力。ACL 和 MCL 撕裂与 ACL 和 PCL/LCL 撕裂相比，具有更好的 RTP 预后。
