Anterior inferior iliac spine deformity as an extra-articular source for hip impingement: A series of 10 patients treated with arthroscopic decompression

Iftach Hetsroni, Christopher M. Larson, Katrina Dela Torre, Robert M. Zbeda, Erin Magennis, Bryan T. Kelly*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To describe an arthroscopic technique for decompression of a prominent anterior inferior iliac spine (AIIS) leading to extra-articular hip impingement and to provide short-term outcome after this procedure. Methods: We retrospectively reviewed office charts, imaging studies, operative reports, arthroscopic images, preoperative and postoperative hip flexion range of motion, and preoperative and postoperative modified Harris Hip Scores in a consecutive series of 10 male patients who had arthroscopic decompression of symptomatic AIIS deformities leading to extra-articular hip impingement. The procedure was performed through standard anterolateral and mid-anterior hip arthroscopy portals that were also used to explore the joint and address concomitant intra-articular pathologies. Results: The mean age was 24.9 years, with 8 of 10 patients aged younger than 30 years. In 9 patients, an anterior cam lesion was identified and decompressed before the AIIS decompression. The mean follow-up time was 14.7 months (range, 6 to 26 months). Hip flexion range of motion improved from 99° ± 7° before surgery to 117° ± 8° after surgery (P <.001). The modified Harris Hip Score improved from 64 ± 18 before surgery to 98 ± 2 at latest follow-up after surgery (P <.001). Conclusions: Arthroscopic decompression of a symptomatic AIIS deformity is a reproducible procedure that can provide excellent outcomes at short-term follow-up. As opposed to using an open approach for decompressing a prominent AIIS, an arthroscopic approach may be of particular value in patients with mixed intra- and extra-articular sources of hip dysfunction, because it enables the surgeon to address all pathologies with a single arthroscopic procedure. Level of Evidence: Level IV, therapeutic case series.

Original languageEnglish
Pages (from-to)1644-1653
Number of pages10
JournalArthroscopy - Journal of Arthroscopic and Related Surgery
Volume28
Issue number11
DOIs
StatePublished - Nov 2012

Fingerprint

Dive into the research topics of 'Anterior inferior iliac spine deformity as an extra-articular source for hip impingement: A series of 10 patients treated with arthroscopic decompression'. Together they form a unique fingerprint.

Cite this