Outcomes of Distraction Subtalar Arthrodesis for the Treatment of Calcaneal Fracture Malunion: A Case Series
Abstract
Objectives: The objective of this study is to evaluate and analyze the outcomes of a series of patients diagnosed with calcaneal fracture malunion treated with distraction subtalar arthrodesis. Materials and Methods: Nine patients (five women and four men; mean age, 56.3 years) were retrospectively evaluated, with a mean follow-up of 31.28 months. Weight-bearing lateral radiographs were used to assess talocalcaneal height, talar declination angle, calcaneal declination angle, and Meary’s angle. Clinical outcomes were evaluated using the Visual Analog Scale (VAS) for pain and the American Orthopaedic Foot & Ankle Society (AOFAS) Ankle-Hindfoot Score. Patient satisfaction was also assessed. Results: Talocalcaneal height increased by 0.7 cm, talar declination angle by 4.5°, CP by 1.3°, and Meary’s Angle decreased by 4.8°. The VAS pain score decreased by 5.8 points, and the AOFAS score increased by 50 points. Eight patients reported being very satisfied and one patient was satisfied with the outcome. Conclusions: Distraction subtalar arthrodesis provides excellent clinical and radiographic outcomes in patients with calcaneal fracture malunion. It reduces pain and improves function while restoring hindfoot height and talar declination.Downloads
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