ArticleOTA international : the open access journal of orthopaedic trauma2025
Restoration of calcaneal anatomy and physiologic function after fracture: the importance of tuber length.
Article in OTA international : the open access journal of orthopaedic trauma, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objectives: To evaluate calcaneal tuber length (TL) and its influence on calcaneal height (CH), talar declination angle (TDA), and function during plantarflexion after operative fixation of calcaneus fractures. Design: Retrospective case-control study. Setting: Large, urban, level 1 trauma center. Patients/Participants: A total of 39 patients from 2012 to 2022 with isolated intra-articular calcaneus fractures with weight-bearing lateral postoperative and contralateral x-rays (to use as internal control) with at least 1 year follow up. Intervention: Patients underwent fixation of calcaneus fractures and were separated into "short tuber" (ST) and "restored tuber" (RT) groups. Postoperative radiographs were compared with contralateral radiographs. Main Outcome Measurements: Calcaneal Bohler angle (BA), TL, CH, TDA, and relative work increase using the equation Work = Force × Distance. Fixation methods related to TL were also investigated. Results: Overall, 37 of 39 patients (95%) had postoperative BA within 20-40°. 8 of 39 patients were in the ST group, and 31 of 39 were in the RT group. The average TL difference was 0.73 cm in ST versus 0.13 cm in RT ( Conclusions: Despite restoring BA, presence of a shortened tuber can still result in decreased CH and a flat talus compared with the contralateral limb. It also required increased work to plantarflex the ankle, further highlighting the importance of restoring tuber length. Level of Evidence: IV.
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