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  • Title: [Four kinds of operative methods for subtalar arthrodesis in treating old calcaneal fracture].
    Author: Li P, Zhang HW, Zhang Y, Xu SQ, Zhang WJ, Wang Y.
    Journal: Zhongguo Gu Shang; 2019 Nov 25; 32(11):1038-1043. PubMed ID: 31870053.
    Abstract:
    OBJECTIVE: To explore clinical efficacy of four surgical methods for subtalar joint fusion and internal fixation in treating old calcaneal fractures. METHODS: From March 2014 to November 2017, 25 patients (26 feet) with old calcaneal fractures treated with four surgical methods of subtalar arthrodesis were retrospectively analyzed, including subtalar joint fusion in situ for 2 patients (2 feet), subtalar articular strut bone graft fusion for 6 patients (6 feet), subtalar joint fusion with calcaneus V-shaped osteotomy for 6 patients(6 feet), and subtalar bone graft fusion with calcaneus cuneiform osteotomy for 11 patients (11 feet). They aged from 23 to 70 years old with an average of (36.7±5.8) years old, and the courses of disease ranged from 3 to 35 months with an average of (9.5±5.1) months. Postoperative complications were observed, talar tilt angle, calcaneus Böhler angle, Gissane angle, and the heel height were compared before and after surgery at 12 months. VAS score and American Orthopaedic Foot and Ankle Society(AOFAS) score were employed to evaluate clinical efficacy at 12 months after surgery. RESULTS: Twenty-one patients (21 feet) were followed up for 13 to 34 months with an average of (20.1±3.7) months, four patients(5 feet) were lost to follow-up. Two patients were underwent surgical incision rupture, 1 patient occurred fracture nonunion, and no complications such as fracture nonunion, loosening or fracture of internal fixation occurred in the other patients. There were significant differences between preoperative and postoperative in talar tilt angle[(5.3±2.4)° vs (11.2±4.6)°, t=7.24, P<0.05], calcaneus Böhler angle[(5.4±2.7)° vs(25.5±5.3)°, t=11.2, P<0.05], Gissane angle[(89.4±9.6)° vs (122.0±5.2)°, t=8.13, P<0.05], and heel height[(28.5±5.1) mm vs(47.1±3.7) mm, t=6.45, P<0.05]. VAS score was decreased from 5.2±1.0 before operation to 1.6±0.7 at 12 months after operation(t=5.12, P<0.05); AOFAS score was improved from 52.4±6.4 to 86.2±5.2 at 12 months after operation(t=6.41, P<0.05); 14 feet got excellent results, 4 good , 2 moderate and 1 poor. CONCLUSIONS: Subtalar joint fusion in situ, subtalar articular strut bone graft fusion, subtalar joint fusion with calcaneus V-shaped osteotomy, and subtalar bone graft fusion with calcaneus cuneiform osteotomy are effective operation methods for old calcaneal fractures, which have advantages of relieving pain, correcting deformity of calcaneal, improving foot function. Reasonable selection and treatment is the key to ensure the efficacy.
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