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Published in: International Orthopaedics 3/2020

01-03-2020 | Osteoarthrosis | Original Paper

Supramalleolar osteotomy in post-traumatic valgus ankle osteoarthritis

Authors: Nicola Krähenbühl, Roman Susdorf, Alexej Barg, Beat Hintermann

Published in: International Orthopaedics | Issue 3/2020

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Abstract

Purpose

To assess how the level of the deformity, the stage of the osteoarthritic process, and the role of additional surgeries impact radiographic and clinical outcomes following an extra-articular medial closing supramalleolar osteotomy for treatment of post-traumatic valgus ankle osteoarthritis.

Methods

About 56 consecutive patients who underwent an extra-articular medial closing wedge osteotomy for post-traumatic valgus ankle osteoarthritis were retrospectively analyzed. Subgroups were formed according to the pre-operative level of deformity and preoperative stage of ankle osteoarthritis. Additional surgical steps required to achieve a properly balanced hindfoot were also noted. Radiographic and clinical outcomes of each subgroup were compared with each other, and the role of additional surgical steps required to achieve a balanced hindfoot was investigated.

Results

Radiographic and clinical outcomes improved significantly between pre-operative assessment and the last follow-up. Patients with a pre-operative supramalleolar deformity showed superior radiographic outcomes compared to patients with an intra-articular deformity. Clinical outcomes did not differ significantly between these two subgroups. The pre-operative stage of ankle osteoarthritis significantly impacted radiographic outcomes but did not influence clinical outcome measures. An additional fibula or calcaneus osteotomy was necessary for 55% and 23% of all patients, respectively.

Conclusion

Extra-articular medial closing supramalleolar osteotomies show satisfactory mid- to long-term radiographic and clinical outcomes in patients with post-traumatic valgus ankle osteoarthritis.
Appendix
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Literature
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Metadata
Title
Supramalleolar osteotomy in post-traumatic valgus ankle osteoarthritis
Authors
Nicola Krähenbühl
Roman Susdorf
Alexej Barg
Beat Hintermann
Publication date
01-03-2020
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 3/2020
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-019-04476-x

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