ZHOU Peng 1 , LIU Juncai 1 , XU Yangbo 1 , WEI Daiqing 1 , DENG Xiangtian 1,2 , LI Zhong 1
  • 1. Department of Orthopaedics and Joint Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou Sichuan, 646000, P.R.China;
  • 2. School of Medicine, Nankai University, Tianjin, 300071, P.R.China;
LI Zhong, Email: 545890312@qq.com
Tibial avulsion fracture of posterior cruciate ligament; arthroscopy; open reduction; internal fixation
10.7507/1002-1892.201911049
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Objective To compare the early effectiveness of minimally invasive open reduction and internal fixation via posterior median approach versus arthroscopic double-tunnel suture fixation in treatment of tibial avulsion fracture of the posterior cruciate ligament (PCL).Methods A clinical data of 31 patients with the tibial avulsion fracture of the PCL and met the criteria between January 2015 and January 2019 was retrospectively analyzed. Nineteen patients (group A) were treated with open reduction and internal fixation with cannulated screw via posterior median approach. The other 12 patients (group B) were treated with arthroscopic double-tunnel suture fixation technique. There was no significant difference between the two groups (P>0.05) in the gender, age, side of effected limb, the injury cause, the time from injury to operation, the combined meniscus injury, Meyers & McKeever classification and preoperative Lysholm score, Tegner score, International Knee Documentation Committee (IKDC) score, and the difference of tibial posterior displacement between bilateral knees. The operation time, postoperative complications, fracture healing, and the difference of tibial posterior displacement between bilateral knees, Lysholm score, Tegner score, and IKDC score were recorded.Results Group B spent significantly longer operation time than group A (t=7.347, P=0.000). No postoperative complication occurred in group B, and 1 patient in group A had a screw breakage. All patients were followed up 6-36 months (mean, 22 months). X-ray films showed that all fractures healed at 3 months after operation. At last follow-up, there was no significant difference in the patients with normal knee range of motion between the two groups (P=0.510). At last follow-up, the difference of tibial posterior displacement between bilateral knees, Lysholm score, Tegner score, and IKDC score in the two groups were superior to those before operation (P<0.05); while there was no significant difference between the two groups (P>0.05).Conclusion For the tibial avulsion fracture of PCL, the minimally invasive open reduction and internal fixation and arthroscopic double-tunnel suture fixation can obtain similar early effectiveness. However, arthroscopic surgery has the advantages of being able to simultaneously deal with intra-articular combined injuries, avoiding internal fixator complications, and eliminating the need for secondary operation.

Citation： ZHOU Peng, LIU Juncai, XU Yangbo, WEI Daiqing, DENG Xiangtian, LI Zhong. Early effectiveness of minimally invasive open reduction and internal fixation versus arthroscopic double-tunnel suture fixation for tibial avulsion fracture of posterior cruciate ligament. Chinese Journal of Reparative and Reconstructive Surgery, 2020, 34(6): 707-712. doi: 10.7507/1002-1892.201911049 Copy

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