The anterior cruciate ligament (ACL) is one of a pair of cruciate ligaments in the human knee and is critical for knee stability, as it limits anterior tibial translation on the femur, restrains rotation and resists varus and valgus joint forces. The present study aimed to assess the effect of double‑bundle revision anterior cruciate ligament (ACL) reconstruction in improving the subjective and objective functions and re‑introducing patients to physical activity after primary ACL reconstruction had failed. A total of 34 patients who underwent double‑bundle ACL revision surgeries were included in the present retrospective study. Lysholm, Tegner and IKDC scores as well as KT‑2000 arthrometry measures were obtained pre‑ and post‑operatively. The follow‑up time was at least 2 years. The results indicated that the IKDC, Lysholm and Tegner scores as well as KT‑2000 flexion scores were significantly improved after revision ACL reconstruction. All patients resumed to performing physical exercise activities after revision surgeries, 65% of whom reached pre‑injury levels. In conclusion, these results demonstrated that double‑bundle revision ACL reconstruction was consistently effective in rescuing failed primary ACL reconstruction and re‑introducing patients to physical exercise.

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