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Aim: The purpose of this study was to report the long-term follow-up (mean of 15 years) of patients with displaced intra-articular calcaneal fractures from a randomised controlled trial published in 1993.
Patients and Methods: 46 patients (82% of patients in the initial study group) were alive at a mean of 15 years post injury. The patients had been randomly allocated to either conservative or operative (Soeur and Remy technique) treatment in the original study. Clinical (AOFAS, FFI and calcaneal fracture score) and radiological (Böhler’s angle and calcaneum height) outcome measures were used. The grade of osteoarthritis was also assessed at long-term follow-up.
Results: 26 patients (57%) were reviewed and these patients served as the focus of the study (11 conservative and 15 operative). The clinical outcomes after conservative treatment were not found to be different from those after operative treatment, scores of the AOFAS were 78.5 and 70 respectively (p = 0.11); scores of the FFI were 24.4 and 26.9 respectively (p = 0.66) and calcaneal fracture scores were 70.1 and 63.5 respectively (p = 0.41). The radiological outcomes after conservative treatment were not found to be different from those after operative treatment, Böhler’s angles were 10° and 16° respectively (p = 0.07) and the height of the calcaneum were 37mm and 36mm respectively (p = 0.57). There was no difference in the grade of osteoarthritis between the groups.
Conclusion: The functional and radiological long-term outcomes after conservative treatment of displaced intra-articular calcaneal fractures were equivalent to those after operative treatment. The operative technique showed no benefit compared to conservative treatment at long-term follow-up. There was a trend for higher scores on clinical outcomes with conservative treatment