Sinus Tarsi Approach for Open Treatment and Internal Fixation of Displaced Intra-articular Calcaneal Fractures in High-Risk Patients: The New Gold Standard?

Abstract

Category: Ankle, Diabetes, Hindfoot, Trauma Introduction/Purpose: Intra-articular calcaneal fractures offer unique challenges. Wound problems and infection are significant complications in the surgical treatment of calcaneal fractures which in turn can be debilitating to patients and outcomes. The literature suggests varying wound complication rates but 21% up to 33% using the traditional extensile lateral approach in some studies. The extensile lateral approach has historically been accepted as the gold standard for fixation and treatment of these fractures. Recently there has been resurgent interest in alternative approaches to the fixation of intra-articular calcaneal fractures. Of interest is the potential of the sinus tarsi approach to decrease wound complications while having comparable reduction quality to the higher wound risk extensile lateral approach. Methods: A multi-center retrospective chart review study was implemented. The study objective was to review wound complication of the sinus tarsi approach compared with outcomes from the traditional extensile approach for fixation of displaced intra-articular calcaneal fractures. Specifically; examining a population of patients considered at high risk for wound issues, comparing radiographic and clinical outcomes. Results: In the high-risk group, only one primary complications resulted, including one patient with a history of an open fracture. All fractures healed with adequate maintenance of alignment. Chi- squared analysis resulted in a statistically significant difference in complication rates between sinus tarsi and the traditional extensile lateral approach at the 95% confidence level. Conclusion: In both high-risk and lower-risk cohorts of patients, a low rate of infection and wound problems was encountered. A limited approach through a sinus tarsi incision provides a viable option to treat displaced intra-articular calcaneus fracture patients with risk factors for wound issues. The patients all healed both their soft tissue wounds and fractures. Functional return was consistent with other study populations. Our study adds another cohort of patient data demonstrating the advantage of the sinus tarsi approach when compared to the extensile lateral in terms of decreased wound complications while maintaining quality of reductions and clinical outcomes.