Abstract: Objective To use autologous ipsilateral peroneus longus tendon （PLT） reconstruction in patients with posterior cruciate ligament rupture, and compare with hamstring tendon （HT） reconstruction to analyze their safety and effectiveness. Methods A retrospective analysis was conducted on patients with posterior cruciate ligament rupture admitted to our hospital. The PLT group received autologous ipsilateral PLT reconstruction （22 cases）, while the HT group received autologous HT reconstruction （20 cases）. Observation indicators included perioperative conditions, follow-up indicators, and imaging evaluation. Results There were no statistically significant differences in selected perioperative indicators between the two groups of patients. The incidence of adverse reactions in the PLT group was significantly lower than that in the HT group. At the last follow-up, the knee joint score and imaging indicators of the PLT group were significantly better than those of the HT group. Conclusion The application of autologous ipsilateral PLT therapy in patients with posterior cruciate ligament injury reconstruction can efficiently restore knee joint function, alleviate pain symptoms, promote joint activity, and avoid the impact of surgical trauma on rehabilitation.

Key words: Posterior cruciate ligament injury, Autogenous tendon, Peroneus longus tendon, Hamstring tendon