Heterotopic Ossification(HO) is a recognized complication following Total Hip Arthroplasty(THA) that can compromise patient outcomes. Our objectives were to report its incidence and risk factors in a modern arthroplasty unit(MAU). 2305 consecutive primary THAs in 2150 patients(887♂;1263♀) undertaken at a single centre and followed-up for at least one year constituted the study cohort. A retrospective review of patient demographics (age, side, body mass index[BMI], type of anaesthesia, surgical approach, method of fixation, estimated blood loss[EBL] and operative time), serial radiographs and outcome measure (The Oxford hip score[OHS]) were undertaken. All HO were further followed for additional four years to determine the incidence of Revision THA at five years. Descriptive statistics and logistic regression was undertaken to identify the risk factors for HO using Statistical Package(SPSS) version16.Introduction
Methods
