Abstract: Objective:To investigate the surgical technique of autologous tendon transplantation for reconstruction of anterior cruciate ligament (ACL) injury,and to analyze its curative effect. Methods:The materials of 30 patients with ACL injury who underwent autologous tendon transplantation and reconstruction were retrospectively analyzed; the average follow-up period of the patients was 24.1 months. The surgery characteristrics and clinical curative effect were explored. Results:The stability of knee joint was examined by drawer test,Lachman test,and internal and external stress tests. The healing of reconstructed ligament tunnel was observed by X-ray. The morphology of ACL and ligament reconstruction before and after operation were observed by magnetic resonance imaging (MRI). The surgical effect was evaluated according to the International Knee Documentation Committee (IKDC) scoring system. There were no severe complications such as traumatic arthritis, infection, or thrombosis in the patients. The results of anterior drawer test, Lachman test, and internal and external stress tests were changed from positive to negative, suggesting that the knee joint was stable after operation. The postoperative IKDC score of the patients was significantly higher than before operation(P<0.05). The X-ray results showed that the blurred or disappeared bone tunnel basically achieved tendon-bone healing, while the MRI showed that the reconstructed ligament signal was uniform and non-tortuous, indicating that the ligament was strengthened. Conclusion:Accurate reconstruction with autologous ligament transplantation in the treatment of ACL injury is safe and feasible with fewer complications, which is helpful to restore the stability of knee joint quickly.

Key words: anterior cruciate ligament, autologous tendon, ligament reconstruction, autologous transplantation