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Effect of Coronal and Sagittal Alignment on Outcome After Mobile-Bearing Total Ankle Replacement

2015; SAGE Publishing; Volume: 36; Issue: 9 Linguagem: Inglês

10.1177/1071100715583383

1944-7876

Matthias Braito, Dietmar Dammerer, Andrea Reinthaler, Gerhard Kaufmann, Dennis Huber, R. Biedermann,

Lower Extremity Biomechanics and Pathologies

Comparably high revision rates are reported after total ankle replacement (TAR). Therefore, further critical analysis of the influence of implant position on clinical outcome is necessary.We analyzed the reliability and predictive value of previously published pre- and postoperative coronal and sagittal parameters in routine ankle radiographs on the clinical outcome of 84 HINTEGRA total ankle replacements (Newdeal, Lyon, France; Integra, Plainsboro, New Jersey). Mean follow-up was 4.0 years, and 15.5% of the TARs had revision surgery.Mean postoperative American Orthopaedic Foot & Ankle Society ankle-hindfoot score was 71.3; mean postoperative verbal rating scale for pain was 3.1; and mean postoperative ankle range of motion was 26.4 degrees. Most tested radiologic parameters showed moderate or high intra- and interobserver reliability. With the numbers available, no significant difference in clinical outcome for all tested radiologic parameters could be detected.Our results indicate that mild malalignment of TAR, as assessed on routine ankle radiographs, did not affect midterm clinical outcome after TAR. Further multicenter studies with longer follow-up are needed to support our findings.Level III, comparative series.