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Arthroscopy. 2013 Nov;29(11):1777-82. doi: 10.1016/j.arthro.2013.08.003.

Arthroscopic management of protrusio acetabuli.

Author information

  • 1Department of Orthopaedic Surgery, Stanford University, Redwood City, California, U.S.A. Electronic address: msafran@stanford.edu.

Abstract

PURPOSE:

The purpose of this study was to evaluate 4 hips with symptomatic protrusio acetabuli treated arthroscopically for symptomatic pincer-type femoroacetabular impingement in 3 patients aged younger than 40 years.

METHODS:

Four hips in 3 patients, all active women, aged 26 to 37 years, with hip pain and radiographic evidence of protrusio acetabuli and a center-edge angle (CEA) of 50° or more, were studied and followed up for a minimum of 2.5 years. Each of these patients underwent arthroscopic anterior and lateral acetabuloplasty, partial labrectomy, synovectomy, and chondroplasty. Follow-up included evaluation with the modified Harris Hip Score (mHHS), radiographs, and clinical history and examination.

RESULTS:

Patient 1 had bilateral hip surgeries. The right hip was followed up for 63 months, and the CEA improved from 67° to 60°, with an mHHS score improvement by 60.4 points. The CEA for the left hip improved from 63° to 53° at 61 months' follow-up, and the mHHS improved by 43.9 points. Both hips had a final mHHS of 100 points. Patient 3, followed up for 28 months, had a final mHHS of 100 points, 32 points better than preoperatively, whereas the CEA improved from 51° to 44°. Patient 3, a 26-year-old with preoperative radiographically apparent arthritis, had a final mHHS of 87 points, 35 points better than preoperatively, and the CEA improved from 50° to 42° at 32 months' follow-up. All 3 patients were happy with their outcomes.

CONCLUSIONS:

In this small case series, arthroscopic acetabuloplasty showed reduced symptoms and improved function in 3 patients with protrusio aged younger than 40 years at a minimum of 2.5 years' follow-up.

LEVEL OF EVIDENCE:

Level IV, therapeutic case series.

Copyright © 2013 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

PMID:
24209674
[PubMed - indexed for MEDLINE]
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