Heterotopic ossification after total ankle replacement: The role of prosthesis alignment.

Background: The aetiology of heterotopic ossifications (HO) after total ankle arthroplasty (TAR) remains controversial. The aim of the study was to evaluate the prevalence and localisation of HO and the effect of alignment.

Methods: 88 TARs with a series of radiological controls and follow-up of 36 months were evaluated.