title: Arthroscopic Fixation of Os Acetabuli Technique: When to Resect and When to Fix.
abstract: Acetabular rim fractures, or os acetabuli, are hypothesized to occur as a result of an unfused ossification center or a stress fracture from repetitive impingement of an abnormally shaped femoral neck against the acetabular rim. When treated surgically, these fragments are typically excised as part of the correction for femoroacetabular impingement. However, in some patients, removal of these fragments can create symptoms of gross instability or microinstability of the hip. In these cases, internal fixation of the fragment is necessary. The purpose of this technical note is to describe indications, the arthroscopic technique, and postoperative care for fixation of acetabular rim fractures.
authors.affiliation: Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, U.S.A.
authors.forename: Cecilia
authors.initials: C
authors.lastname: Pascual-Garrido
authors.affiliation: Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, U.S.A.
authors.forename: John B
authors.initials: JB
authors.lastname: Schrock
authors.affiliation: Steadman Philippon Research Institute, Vail, Colorado, U.S.A.
authors.forename: Justin J
authors.initials: JJ
authors.lastname: Mitchell
authors.affiliation: Department of Orthopaedic Surgery, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
authors.forename: Gaston
authors.initials: G
authors.lastname: Camino Willhuber
authors.affiliation: Department of Orthopedics, University of Colorado School of Medicine, Aurora, Colorado, U.S.A.
authors.forename: Omer
authors.initials: O
authors.lastname: Mei-Dan
authors.affiliation: Steadman Philippon Research Institute, Vail, Colorado, U.S.A.
authors.forename: Jorge
authors.initials: J
authors.lastname: Chahla