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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

From: Patient-specific instrument-assisted minimally invasive internal fixation of calcaneal fracture for rapid and accurate execution of a preoperative plan: A retrospective study

Fig. 4

Imaging examination and evaluation of a representative case (male, 47 years old, left Sanders type IV fresh calcaneal fracture). a Example of an intra-articular fracture of the calcaneus. Böhler angle was − 3.1° and Gissane angle was 141.4°. b Axial view showing a varus deformity of the calcaneus. c, d Coronal and sagittal views of the calcaneus in the CT scan show an irregular facet of the subtalar joint (Sanders type IV calcaneus fracture). e Lateral radiograph obtained 2 days after the surgery confirmed anatomic reduction of the calcaneus and stable fixation. Böhler angle was 31.6° and Gissane angle was 118.5°. f Lateral radiograph obtained at approximately 12 months confirmed anatomic reduction and stable fixation, with a Böhler angle of 27.7° and Gissane angle of 119.2°

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