Purpose
To evaluate minimum 5-year outcomes and conversion rate to total hip arthroplasty
(THA) for the treatment of femoroacetabular impingement (FAI) syndrome with an isolated
acetabular osteoplasty.
Methods
Patients undergoing hip arthroscopy with an isolated acetabular osteoplasty from March
2009 to June 2014 for FAI syndrome with pincer and/or cam morphology and a labral
tear were identified. Those who underwent femoroplasty or prior ipsilateral hip surgery
or who had previous hip conditions, ipsilateral hip dysplasia, or a Tönnis grade higher
than 2 were excluded. Patient-reported outcomes (PROs) collected included Patient-Reported
Outcomes Measurement Information System (PROMIS) scores specific to physical functioning
and pain interference, modified Harris Hip Score, International Hip Outcome Tool 12,
Hip Outcome Score–Activities of Daily Living, Hip Outcome Score–Sport-Specific Subscale,
and Numeric Pain Rating Scale. Patients were also queried about secondary surgical
procedures and conversion to THA.
Results
We identified 86 patients at minimum 5-year follow-up (average, 7.4 years). The average
patient age was 39.8 ± 12.3 years, 70.9% of patients were female, and 7% of patients
had Tönnis grade 2. The mean PRO scores were 52.0 ± 8.9 for the PROMIS physical functioning
score, 39.6 ± 7.5 for the PROMIS pain interference score, 78.7 ± 12.0 for the modified
Harris Hip Score, 73.3 ± 23.1 for the International Hip Outcome Tool 12 score, 89.9
± 12.0 for the Hip Outcome Score–Activities of Daily Living, and 81.4 ± 21.0 for the
Hip Outcome Score–Sport-Specific Subscale. Of the patients, 72.1% achieved the patient
acceptable symptomatic state (PASS) according to previously established PASS scores
for FAI syndrome treated with hip arthroscopy at minimum 5-year follow-up. The overall
rate of revision arthroscopy was 3.5%, and the rate of conversion to THA was 5.8%.
Conclusions
An isolated acetabular osteoplasty can provide sustained clinical benefits for the
treatment of FAI syndrome with labral tears, with good to excellent PROs and PASS
rates and a low rate of conversion to THA at minimum 5-year follow-up.
Level of Evidence
Level IV, case series.
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Article info
Publication history
Published online: April 17, 2021
Accepted:
March 31,
2021
Received:
September 30,
2020
Footnotes
See commentary on page 3295
The authors report no conflicts of interest in the authorship and publication of this article. Full ICMJE author disclosure forms are available for this article online, as supplementary material.
Identification
Copyright
© 2021 by the Arthroscopy Association of North America
