Summary

Absorbable suture anchor fixation for tibial avulsion fracture of PCL by posterior-midline incision is feasible,safe,easy to operate and effective．

Abstract

Purpose

To investigate the feasibility and clinical outcomes of avulsion fracture of posterior cruciate ligament(PCL) reduction and fixation with absorbable suture anchors by postero-midline incision．

Methods

Between January 2011 and March 2016，15 cases of tibial avulsion fracture of PCL were treated with open reduction and internal fixation by postero-midline incision(mean, 5.5cm), every patient used 2 absorbable suture anchors to fix the fracture by cross suture of PCL．

Results

Anatomical reduction and near anatomic reduction were obtained in all patients. All fractures healed in 1.5-3.5 months(mean,2.6months) without deep venous thrombosis of lower limbs or vessel and nerve injuries. All patients were followed up for 6～13 months，8.6 months on average．After 6 months, 2 patients’ posterior drawer test were slightly positive(13.3%), 13 patients’ were negative(86.7%). All patients’ ROM were no different with contralateral knee joint. The Lysholm score was improved to 95.8±2.4 at 6 months after operation,showing significant difference compared with preoperative score(51.3±5.9, P<0.05)．

Conclusion

Absorbable suture anchor fixation for tibial avulsion fracture of PCL by posterior-midline incision is feasible,safe,easy to operate and effective．