title: Classifications in brief: Brooker classification of heterotopic ossification after total hip arthroplasty.
authors.affiliation: Department of Orthopaedics and Sports Medicine, University of Washington, Box 359798, 325 9th Avenue, Seattle, WA, 98104, USA, kevinhug@uw.edu.
authors.forename: Kevin T
authors.initials: KT
authors.lastname: Hug
authors.forename: Timothy B
authors.initials: TB
authors.lastname: Alton
authors.forename: Albert O
authors.initials: AO
authors.lastname: Gee
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D001696:Biomechanical Phenomena; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D015588:Observer Variation; D009999:Ossification, Heterotopic / Q000145:classification* / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology / Q000628:therapy; D011237:Predictive Value of Tests; D011859:Radiography; D016059:Range of Motion, Articular; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D009626:Terminology as Topic; D016896:Treatment Outcome