Ninety-degree chevron osteotomy for correction of hallux valgus deformity: clinical data and finite element analysis.

The Open Orthopaedics Journal
Charalambos MatzaroglouDimitris Kouzoudis

Abstract

Hallux valgus is a very common foot disorder, with its prevalence estimated at 33% in adult shoe-wearing populations. Conservative management is the initial treatment of choice for this condition, but surgery is sometimes needed. The 60(0) angle Chevron osteotomy is an accepted method for correction of mild to moderate hallux valgus in adults less than 60 years old. A modified 90(0) angle Chevron osteotomy has also been described; this modified technique can confer some advantages compared to the 60(0) angle method, and reported results are good. In the current work we present clinical data from a cohort of fifty-one female patients who had surgery for sixty-two hallux valgus deformities. In addition, in order to get a better physical insight and study the mechanical stresses along the two osteotomies, Finite Element Analysis (FEA) was also conducted. FEA indicated enhanced mechanical bonding with the modified 90(0) Chevron osteotomy, because the compressive stresses that keep the two bone parts together are stronger, and the shearing stresses that tend to slide the two bone parts apart are weaker, compared to the typical 60(0) technique. Follow-up data on our patient cohort show good or excellent long-term clinical results wit...Continue Reading

References

Jul 1, 1994·Foot & Ankle International·H B KitaokaM Sanders
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Nov 21, 2001·Clinical Biomechanics·H A Jacob
May 22, 2002·Journal of Biomechanics·W R TaylorS E Clift
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Nov 10, 2009·Medical Engineering & Physics·Andrew R HopkinsMark Taylor

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Citations

Sep 4, 2012·Foot and Ankle Clinics·Emilio Wagner, Cristian Ortiz
Mar 19, 2015·Medical & Biological Engineering & Computing·Enrique Morales-OrcajoManuel Doblare
Feb 28, 2016·The Bone & Joint Journal·J Lucas y HernandezO Laffenêtre
Sep 24, 2015·Foot & Ankle International·Gordon L Bennett, James A Sabetta
Sep 25, 2018·Foot & Ankle International·Gordon L BennettJames A Sabetta
Jun 24, 2015·Annals of Biomedical Engineering·Yan WangMing Zhang

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