Functional Outcome Analysis in Arthroscopic Fixation of PCL Avulsion Fractures Using TightRope and Suture Bridge Techniques
Abstract
Introduction: Many arthroscopic fixation techniques have been described for PCL avulsion fractures, amongst which suture bridge (SBF) and TightRope [Arthrex,Naples,US] fixation (TRF) techniques are commonly employed. However, there is no consensus on the optimal method of fixation. Our study aimed to assess the functional outcome of displaced isolated tibial side PCL avulsion fractures treated with either an arthroscopic suture bridge or TightRope technique.
Materials and methods: Our institution assessed the functional outcome in 34 patients diagnosed with bony PCL avulsion and treated arthroscopically between Jan 1, 2015, and Jun 1, 2021. We used the Modified Lysholm and IKDC scores to assess the functional outcome. Scoring was carried out pre-operatively and post-operatively at 3 months, 6 months, and 12 months.
Results: The study population had a mean age of 34.6 years, with a predominant male (82.6%) patient population. Twenty patients (58.8%) underwent fixation using the suture bridge technique, while the remaining 14 had undergone TightRope-aided fixation. Significant functional outcome improvement in modified Lysholm and IKDC scores was seen after 6 months and 12 months of arthroscopic fixation, irrespective of the technique used. Both techniques led to comparable functional outcomes, suggesting that achieving stable fixation is more critical than the choice of method.
Conclusion: Both techniques are effective for PCL avulsion fractures. In our study, outcomes were independent of patient age, sex, and mechanism of injury; therefore, the choice of fixation was primarily determined by surgeon expertise. This suggests that either technique can be applied across patient groups with comparable results.
Abstract | Reference
