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Radiographic Prevalence of Femoroacetabular Impingement in a Young Population with Hip Complaints Is High

  • Clinical Research
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Clinical Orthopaedics and Related Research®

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Abstract

Background

Femoroacetabular impingement (FAI) is reportedly a prearthritic condition in young adults that can progress to osteoarthritis. However, the prevalence of FAI is unknown in the young, active population presenting with hip complaints.

Questions/purposes

We sought to determine (1) the prevalence of radiographic findings of FAI in a young, active patient population with complaints localized to the region of the hip presenting to primary care and orthopaedic clinics; (2) the percentage of films with FAI with an official reading suggesting the diagnosis; and (3) whether the Tönnis grades of osteoarthritis corresponded to the findings of FAI.

Methods

We performed a database review of pelvic and hip radiographs obtained from 157 young (mean age 32 years; range, 18–50 years) patients presenting with hip-related complaints to primary care and orthopaedic clinics. Radiographs were analyzed for signs of FAI (herniation pits, pistol grip deformity, center-edge angle, alpha angle, and crossover sign) and Tönnis grade. Radiology reports were reviewed for a diagnosis of FAI.

Results

At least one finding of FAI was found in 135 of the 155 patients (87%). Four hundred thirteen of 487 radiographs (85%) had been read as normal and one read as showing FAI. Tönnis grades did not correlate with radiographic signs of FAI.

Conclusions

Radiographic evidence of FAI is common in active patients with hip complaints. Increased awareness of FAI in primary care, radiology, and orthopaedic clinics and additional research into the long-term effects of management are warranted.

Level of Evidence

Level II, diagnostic study. See the Guidelines for Authors for a complete description of levels of evidence.

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Author information

Authors and Affiliations

  1. Orthopaedic Surgery Service, William Beaumont Army Medical Center, El Paso, TX, USA

    Leah M. Ochoa MD & Laura Dawson DO

  2. Orthopaedic Surgery Service, Brooke Army Medical Center, 3851 Roger Brooke Drive, Fort Sam Houston, TX, 78234, USA

    Jeanne C. Patzkowski MD

  3. Orthopaedic Surgery Service, US Army Institute of Surgical Research, Fort Sam Houston, TX, USA

    Joseph R. Hsu MD

Authors
  1. Leah M. Ochoa MD
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  2. Laura Dawson DO
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  3. Jeanne C. Patzkowski MD
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  4. Joseph R. Hsu MD
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Corresponding author

Correspondence to Jeanne C. Patzkowski MD.

Additional information

Each author certifies that he or she has no 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.

Each author certifies that his or her institution approved or waived approval for the human protocol for this investigation and that all investigations were conducted in conformity with ethical principles of research.

The views expressed in this document are those of the authors and do not reflect the official policy of William Beaumont Army Medical Center, The Department of the Army, or the US government.

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Ochoa, L.M., Dawson, L., Patzkowski, J.C. et al. Radiographic Prevalence of Femoroacetabular Impingement in a Young Population with Hip Complaints Is High. Clin Orthop Relat Res 468, 2710–2714 (2010). https://doi.org/10.1007/s11999-010-1233-8

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  • DOI: https://doi.org/10.1007/s11999-010-1233-8

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