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Surgical Technique: Arthroscopic Treatment of Heterotopic Ossification of the Hip After Prior Hip Arthroscopy

  • Surgical Technique
  • Published:
Clinical Orthopaedics and Related Research®

Abstract

Background

The incidence of heterotopic ossification (HO) after hip arthroscopy reportedly ranges from less than 1.0% to 6.3%. Although open debridement has been described and a few series mention arthroscopic debridement, the techniques for arthroscopic excision of HO have not been described in detail. We describe the arthroscopic treatment of this complication.

Description of Technique

Revision arthroscopy was completed in the central and peripheral compartments using prior portals and fluoroscopy was used to identify the HO. Spinal needle localization was used to triangulate onto the HO. Cannulas were inserted over the spinal needle. Once the HO was clearly identified with the arthroscope, it was excised using a burr and confirmed on fluoroscopy.

Methods

We retrospectively reviewed 66 patients who underwent arthroscopic treatment of femoroacetabular impingement between July 2008 and June 2010. There were 36 females and 30 males with an average age of 38 years (range, 15–68 years). Eight of the 66 (12%) patients had HO develop. Using the grading of Brooker et al., six patients had Grade 1, one had Grade 2, and one had Grade 3 HO. Three patients with HO were symptomatic and underwent arthroscopic resection. We obtained modified Harris hip scores (HHS) and radiographs at followup. The minimum followup for the three patients with revision surgery was 2 years (mean, 2 years 2 months; range, 2 years–2 years 8 months).

Results

The three patients who underwent arthroscopic resection had HHS ranging from 85 to 96 at last followup. No patient had recurrence of HO.

Conclusions

Our data suggest HO is not uncommon after hip arthroscopy for the treatment of femoroacetabular impingement but most patients have minor degrees and no symptoms. In symptomatic patients, arthroscopic excision appears to relieve pain and restore function.

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Acknowledgments

We thank Catherine N. Petchprapa MD, musculoskeletal radiologist at NYU Hospital for Joint Diseases, for evaluation of the radiographs reported in this study.

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Authors and Affiliations

  1. New York University Hospital for Joint Diseases, 301 E 17th Street, 14th Floor, New York, NY, 10003, USA

    Crispin Ong MD, Michael Hall MD & Thomas Youm MD

Authors
  1. Crispin Ong MD
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  2. Michael Hall MD
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  3. Thomas Youm MD
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Corresponding author

Correspondence to Crispin Ong MD.

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Each author certifies that he or she, or a member of his or her immediate family, has no funding or commercial associations (eg, consultancies, stock ownership, equity interest, patent/licensing arrangements, etc) that might pose a conflict of interest in connection with the submitted article.

All ICMJE Conflict of Interest Forms for authors and Clinical Orthopaedics and Related Research editors and board members are on file with the publication and can be viewed on request.

Each author certifies that his or her institution approved the human protocol for this investigation that all investigations were conducted in conformity with ethical principles of research, and that informed consent for participation in the study was obtained.

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Ong, C., Hall, M. & Youm, T. Surgical Technique: Arthroscopic Treatment of Heterotopic Ossification of the Hip After Prior Hip Arthroscopy. Clin Orthop Relat Res 471, 1277–1282 (2013). https://doi.org/10.1007/s11999-012-2627-6

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  • DOI: https://doi.org/10.1007/s11999-012-2627-6

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