New York University, New York, NY, USA.
Knee Surg Sports Traumatol Arthrosc. 2021 Aug;29(8):2695-2700. doi: 10.1007/s00167-021-06537-4. Epub 2021 Mar 24.
Extensor mechanism ruptures (EMR) of the knee are rare but debilitating injuries that always require surgery to restore knee function. The purpose of this study was to systematically review the literature to ascertain the rate of return to play following patellar or quadriceps tendon ruptures.
A systematic literature search was conducted based on PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, using the EMBASE, MEDLINE, and Cochrane Library databases. Inclusion criteria consisted of clinical studies reporting on return to play after patellar or quadriceps tendon repair. Statistical analysis was performed with the use of SPSS.
Our review found 48 studies including 1135 cases meeting our inclusion criteria. There were 33 studies including 757 patellar tendon (PT) repairs, and 18 studies including 378 quadriceps tendon (QT) repairs. The overall rate of return to play for PT repairs was 88.9%, with 80.8% returning to the same level of play. The overall rate of return to play for QT repairs was 89.8%, with 70.0% returning to the same level of play. Among professional athletes, the overall rate of return to play after PT repair and QT repair was 76.9% and 70.9%, respectively. Following PT repair, 95.8% were able to return to work, and following QT repair, 95.9% were able to return to work.
The overall rate of return to play was high following both PT and QT repairs. Moreover, a high percentage of those patients were able to return to their pre-operative level of sport with a low risk for re-rupture.
Level IV.
膝关节伸肌机制（EMR）断裂较为罕见，但会导致严重残疾，通常需要手术才能恢复膝关节功能。本研究的目的是系统地回顾文献，以确定髌腱或股四头肌腱断裂后重返赛场的比例。
根据 PRISMA（系统评价和荟萃分析的首选报告项目）指南，对 EMBASE、MEDLINE 和 Cochrane 图书馆数据库进行系统的文献检索。纳入标准为报告髌腱或股四头肌腱修复后重返赛场的临床研究。使用 SPSS 进行统计分析。
我们的综述共发现 48 项研究，包括符合纳入标准的 1135 例病例。其中 33 项研究包括 757 例髌腱（PT）修复，18 项研究包括 378 例股四头肌腱（QT）修复。PT 修复的总体重返赛场率为 88.9%，其中 80.8%的患者回到相同的运动水平。QT 修复的总体重返赛场率为 89.8%，其中 70.0%的患者回到相同的运动水平。在职业运动员中，PT 修复和 QT 修复后的总体重返赛场率分别为 76.9%和 70.9%。PT 修复后，95.8%的患者能够重返工作岗位，QT 修复后，95.9%的患者能够重返工作岗位。
PT 和 QT 修复后，总体重返赛场的比例较高。此外，大部分患者能够回到术前的运动水平，再次断裂的风险较低。
IV 级。
