Distal Chevron Osteotomy Increases Anatomic Intermetatarsal Angle in Hallux Valgus.

ABSTRACT:

Background

Distal chevron metatarsal osteotomy (DCO) is a common technique to address hallux valgus (HV), which involves coronal translation of the capital fragment resulting in a nonanatomic first metatarsal. The purpose of this study was to evaluate the radiographic effect of the DCO on the anatomic vs the mechanical axis of the first metatarsal. Our hypothesis was that patients undergoing DCO would have improvement in the mechanical metatarsal axis but worsening of the anatomic axis.

Methods

This was a retrospective case series of consecutive patients who underwent DCO for HV. The primary outcomes were the change in anatomic first-second intermetatarsal angle (a1-2IMA) vs mechanical first-second intermetatarsal angle (m1-2IMA). Secondary outcomes included the change in ha

SUBMITTER: Chan JY 

PROVIDER: S-EPMC8702972 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature