Abstract
ObjectivesTo report the incidence of symptomatic heterotopic ossification (HO) in a defined civilian amputee population, describe its characteristics, and compare these findings to published data in military amputees. DesignRetrospective chart analysis from July 1998 to July 2009. SettingAmbulatory amputee clinic within a large university medical center. ParticipantsAdults with lower limb amputation (N=158). InterventionsNot applicable. Main Outcome MeasurePatients with symptomatic HO confirmed by radiographs. ResultsA total of 261 patients were evaluated; 158 met inclusion criteria, with 59% having traumatic etiology, 18% vascular etiology, 22% infection, and 1% tumor. Symptomatic HO was diagnosed in 36 (22.8%) patients, and 94% patients had mild HO on radiographic scoring. Rate of HO in amputations related to trauma was not increased compared with those of other etiologies. Surgical resection of the ectopic bone was required in 4 (11%) patients. ConclusionsHO is seen commonly after civilian lower limb amputation regardless of etiology. The prevalence was less than that observed in previous reports from military populations. This is the first report estimating the prevalence of HO in adult civilian amputees.
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