Outcome of Isolated PCL Avulsion Fractures Treated with Cancellous Screw Fixation.

ABSTRACT

Background: Isolated PCL avulsion fractures are uncommon. The road traffic accidents (RTA), sports injuries are common causes along with domestic trauma. Methods: We conducted a prospective study with sample size of 34 patients to evaluate the outcome of isolated PCL avulsion fractures treated with cancellous cannulated screws over washers. Results: Our study included 47.06% RTA, 26.47% sports trauma and 26.47% domestic injuries. Standard Burks schaffers approach was used in all 34 cases. Delayed union was found in 5.88 % beyond 16 weeks although none needed revision or reconstruction. The delayed union was obvious in patients with comminuted fractures, which were fixed with washers on screws along with pull through sutures. All the cases were evaluated using Lysholm, IKDC and objective PDT manual examination. Conclusion: The isolated PCL avulsion fractures treated with fixation have good Lysholm and IKDC scores, although objective laxity is present in significant number of cases without subjective disability. The isolated PCL injuries have good results if managed surgically.