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Orthopaedic Proceedings
Vol. 107-B, Issue SUPP_1 | Pages 7 - 7
10 Feb 2025
Lam P Newton A Murphy E Chua MJ Ray R Watt C Robinson P Dalmau-Pastor M Lewis T
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Background

Fourth-generation percutaneous or minimally invasive hallux valgus surgery utilizes a transverse osteotomy to achieve deformity correction. There are only a small number of series reporting the clinical and radiological outcomes of transverse osteotomies, many of which have methodological limitations such as small sample size, limited radiographic follow up or use of non-validated outcome measures. The aim of this study was to provide a methodological robust investigation into percutaneous transverse osteotomies for hallux valgus deformity.

Method

A prospective series of consecutive patients undergoing fourth generation metatarsal extra-capsular transverse osteotomy (META) performed by a single surgeon (PL) between November 2017 and January 2023. The primary outcomes were radiographic deformity correction and clinical foot function assessed using the Manchester-Oxford Foot questionnaire (MOXFQ). Radiographic deformity (Hallux valgus angle (HVA) and intermetatarsal angle (IMA), sesamoid position) was assessed according to AOFAS guidelines. Secondary outcomes included Visual Analogue Scale for Pain and radiographic deformity recurrence (defined as HVA >20° at final radiographic follow up).


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_11 | Pages 20 - 20
4 Jun 2024
Lewis T Robinson PW Ray R Dearden PM Goff TA Watt C Lam P
Full Access

Background

Recent large studies of third-generation minimally invasive hallux valgus surgery (MIS) have demonstrated significant improvement in clinical and radiological outcomes. It remains unknown whether these clinical and radiological outcomes are maintained in the medium to long-term. The aim of this study was to investigate the five-year clinical and radiological outcomes following third-generation MIS hallux valgus surgery.

Methods

A retrospective observational single surgeon case series of consecutive patients undergoing primary isolated third-generation percutaneous Chevron and Akin osteotomies (PECA) for hallux valgus with a minimum 60 month clinical and radiographic follow up. Primary outcome was radiographic assessment of the hallux valgus angle (HVA) and intermetatarsal angle (IMA) pre-operatively, 6 months and ≥60 months following PECA. Secondary outcomes included the Manchester-Oxford Foot Questionnaire, patient satisfaction, Euroqol-5D Visual Analogue Scale and Visual Analogue Scale for Pain.