Correlation between radiographic changes and clinical outcomes after supramalleolar osteotomy for varus ankle osteoarthritis

doi:10.3969/j.issn.1674-490X.2025.06.003

Abstract

Abstract: Objective To investigate the correlation between radiographic changes and clinical outcomes after supramalleolar osteotomy(SMOT)for varus ankle osteoarthritis(AA). Methods A retrospective analysis was conducted on 23 patients(24 feet)with varus AA treated with SMOT between January 2019 and August 2023. There were 9 males(9 feet)and 14 females(15 feet), with a mean age of 57.94 years. Radiographic parameters were compared preoperatively and at final follow-up. Clinical outcomes were assessed using the American Orthopedic Foot and Ankle Society(AOFAS)score and Visual Analogue Scale(VAS)for pain. Correlations between radiographic parameters and AOFAS/VAS scores, as well as between changes in radiographic parameters and final scores, were analyzed. Results The mean follow-up was 15.25±3.07 months. All radiographic parameters, AOFAS, and VAS scores showed significant improvement postoperatively(P<0.01). The mean AOFAS score were improved to 81.31±2.73, and VAS decreased to 1.93±0.29. Pearson analysis revealed that medial clear space(MCS)was significantly correlated with AOFAS and VAS scores both preoperatively and at final follow-up(P<0.05). Changes in tibial articular surface angle(TAS)and MCS were significantly correlated with clinical outcomes(P<0.01). Conclusion SMOT provides satisfactory mid-term outcomes for varus AA. Changes in TAS and MCS are important indicators for evaluating clinical efficacy, with greater changes associated with better outcomes.

Key words: supramalleolar osteotomy, radiographic parameters, clinical outcomes, correlation analysis

CLC Number:

DUO Wanfa, LI Hua. Correlation between radiographic changes and clinical outcomes after supramalleolar osteotomy for varus ankle osteoarthritis[J]. Journal of Hebei Medical College for Continuing Education, 2025, 42(6): 26-33.

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