• Peng-Ju Huang, Hsuan-Ti Huang, Tai-Bin Chen, Jian-Chih Chen, Yen-Ko Lin, Yuh-Min Cheng, and Sen-Yuen Lin.
• Department of Orthopaedic Surgery, Kaohsiung Medical University, Kaohsiung, Taiwan.
• J Trauma. 2002 May 1;52(5):946-50.

BackgroundThirty-two displaced intra-articular fractures of the calcaneus in 30 patients were treated with open reduction and internal fixation. Fracture classification was based on Sanders computed tomographic classification. There were 18 type II fractures, 10 type III fractures, and 4 type IV fractures.MethodsThe operations were performed using a standard extended lateral approach, and the fractures were fixed with small-fragment AO T-plates without bone grafting. Average follow-up was 35.4 months (range, 24-53 months). The Creighton-Nebraska Health Foundation Assessment score for fractures of the calcaneus was used for evaluation.ResultsThe average score was 86.7 for type II, 82.3 for type III, and 59.2 for type IV fractures. There was a clear statistically significant superiority with type II and type III fractures treated with open reduction when compared with type IV fractures (p < 0.0001).ConclusionOn the basis of our result, we recommend that type II and type III fractures be treated with open reduction and internal fixation. Despite the results of type IV fractures being significantly worse than that of type II and type III fractures, we recommend open reduction and internal fixation for type IV fractures to restore the hindfoot architecture and the subtalar joint, if possible. When the disrupted subtalar joint is so comminuted that it is beyond the surgeon's ability to reconstruct, primary subtalar arthrodesis should be performed in addition to open reduction and internal fixation.

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