title: Heterotopic ossification after 2-incision total hip arthroplasty.
abstract: We examined the incidence of heterotopic ossification (HO) in a consecutive series of total hip arthroplasties (THAs) performed with the so-called minimally invasive, 2-incision technique. Standard preoperative hip radiographs were used to grade the extent of degenerative arthritis, and comparable follow-up radiographs at 30 months after surgery were used to detect and classify HO formation. Of 121 patients, 32 (26.5%) developed HO, with the Brooker class distribution as follows: stage I, 16 patients; stage II, 9 patients; stage III, 6 patients; stage IV, 1 patient. In this study, HO formation after 2-incision THA occurred with nearly the same frequency as that reported in other studies after standard THA.
authors.affiliation: Department of Orthopaedic Surgery, University of Missouri, Columbia, MO 65212, USA.
authors.forename: B Sonny
authors.initials: BS
authors.lastname: Bal
authors.forename: Jason A
authors.initials: JA
authors.lastname: Lowe
authors.forename: Ann
authors.initials: A
authors.lastname: E Gietler
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Aleto
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D006621:Hip Joint / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging* / Q000209:etiology; D015207:Osteoarthritis, Hip / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography