title: Unusual Cause of Hip Pain: Intrusion of the Acetabular Labrum.
abstract: Femoroacetabular impingement and dysplatic hip joint is well known cause of osteoarthritis. In these diseases, labral tear and subsequent cartilage damage is thought to be main pathophysiology of development of osteoarthritis. If there are no known bony abnormalities, we called it as idiopathic osteoarthritis. Normal appearance of acetabular labrum is a continuous, usually triangular structure that attaches to the bony rim of the acetabulum and is completed at the inferior portion by the transverse acetabular ligament over the acetabular notch. A few authors reported intra-articular labrum and its relation to the development of osteoarthritis. But they didn't comment the primary bony abnormality especially acetabulum. We'd like to report x-ray, computed tomogram, magnetic resonance arthrogram and arthroscopic findings of a case had double contour sign of acetabular dome combined with intrusion of acetabular labrum.
authors.affiliation: Department of Orthopaedic Surgery, Daegu Fatima Hospital, Daegu, Korea.
authors.forename: Se-Ang
authors.initials: SA
authors.lastname: Jang
authors.affiliation: Department of Orthopaedic Surgery, Daegu Fatima Hospital, Daegu, Korea.
authors.forename: Young-Ho
authors.initials: YH
authors.lastname: Cho
authors.affiliation: Department of Orthopaedic Surgery, Daegu Fatima Hospital, Daegu, Korea.
authors.forename: Young-Soo
authors.initials: YS
authors.lastname: Byun
authors.affiliation: Department of Orthopaedic Surgery, Daegu Fatima Hospital, Daegu, Korea.
authors.forename: Dae-Geun
authors.initials: DG
authors.lastname: Jeong
authors.affiliation: Department of Orthopaedic Surgery, Daegu Fatima Hospital, Daegu, Korea.
authors.forename: In-Ho
authors.initials: IH
authors.lastname: Han
authors.affiliation: Department of Orthopaedic Surgery, Daegu Fatima Hospital, Daegu, Korea.
authors.forename: Min-Guek
authors.initials: MG
authors.lastname: Kim
keywords: Acetabular labrum; Idiopathic; Intrusion; Osteoarthritis