Making a Case for Anterior Inferior Iliac Spine/Subspine Hip Impingement: Three Representative Case Reports and Proposed Concept

ArticleinArthroscopy The Journal of Arthroscopic and Related Surgery 27(12):1732-7 · December 2011with27 Reads
Impact Factor: 3.21 · DOI: 10.1016/j.arthro.2011.10.004 · Source: PubMed


    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.