title: Making a case for anterior inferior iliac spine/subspine hip impingement: three representative case reports and proposed concept.
abstract: Femoroacetabular impingement is typically described as occurring due to a conflict between the femoral head-neck junction and acetabular rim. A prior case report described an open decompression of the anterior inferior iliac spine (AIIS) due to impingement against the proximal femur. AIIS impingement may be developmental or the result of a prior AIIS avulsion or pelvic osteotomy. We describe 3 representative cases with minimum 1-year follow-up treated with an arthroscopic AIIS decompression.
authors.affiliation: Minnesota Orthopedic Sports Medicine Institute at Twin Cities Orthopedics, Edina, 55435, USA. chrislarson@tcomn.com
authors.forename: Christopher M
authors.initials: CM
authors.lastname: Larson
authors.forename: Bryan T
authors.initials: BT
authors.lastname: Kelly
authors.forename: Rebecca M
authors.initials: RM
authors.lastname: Stone
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D001182:Arthroscopy / Q000379:methods*; D005260:Female; D005270:Femur Head / Q000601:surgery*; D005500:Follow-Up Studies; D006621:Hip Joint / Q000601:surgery*; D006801:Humans; D007085:Ilium / Q000293:injuries / Q000601:surgery*; D007592:Joint Diseases / Q000209:etiology / Q000601:surgery*; D008297:Male; D055815:Young Adult