© 2009 the American Academy of Orthopaedic Surgeons Anterior Iliopsoas Impingement and Tendinitis After Total Hip ArthroplastyDr. Lachiewicz is Professor, Department of Orthopaedic Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC. Dr. Kauk is Resident Physician, University of North Carolina at Chapel Hill. Dr. Lachiewicz or a member of his immediate family serves as a board member, owner, officer, or committee member of the Hip Society and the Southern Orthopaedic Association, is affiliated in an unpaid capacity with the publication Journal of Surgical Orthopaedic Advances, has received royalties from Innomed, is a member of a speakers bureau or has made paid presentations on behalf of Covidien and DJO Global, serves as an unpaid consultant to Zimmer, and has received research or institutional support from Zimmer. Neither Dr. Kauk nor a member of his immediate family has received anything of value from or owns stock in a commercial company or institution related directly or indirectly to the subject of this article. Reprint requests: Dr. Lachiewicz, Department of Orthopaedic Surgery, University of North Carolina at Chapel Hill, CB 7055, Bioinformatics Building, Chapel Hill, NC 27599-7055. Anterior iliopsoas impingement and tendinitis is a poorly understood and likely underrecognized cause of groin pain and functional disability after total hip arthroplasty. The patient history and physical examination findings are usually only suggestive, and the symptoms frequently subtle. The diagnosis may be confirmed by one or more imaging studies, including a cross-table lateral radiograph, computed tomography, magnetic resonance imaging, and ultrasonography, in combination with a confirmatory diagnostic injection. Nonsurgical management may not resolve the problem. Surgical treatment, consisting of release or resection of the iliopsoas tendon, alone or in combination with acetabular revision for an anterior overhanging component, usually provides permanent pain relief.
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