EP4.5 Greater Gluteus Medius/Minimus Muscle Volumes and Cross-Sectional Area in Patients Undergoing Surgery for Femoroacetabular Impingement Over Those Undergoing Surgery for Acetabular-Related Hip Dysplasia

Clicks: 8
ID: 331187
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #407 of 444 articles by views in Journal of hip preservation surgery

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 444 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract Background Femoroacetabular impingement (FAI) and acetabular-related hip dysplasia are common pre-arthritic indications for hip preservation surgery. Prior studies have demonstrated differences in the cross-sectional area (CSA) of gluteal musculature between these pre-arthritic hip populations, however volumetric analyses that account for the full volume of the gluteal musculature in these comparisons remain limited. Purpose To compare operative-side gluteus medius, minimus, and maximus muscle volumes between patients undergoing hip preservation surgery for acetabular-related hip dysplasia versus FAI. Methods Patients undergoing surgery for either acetabular-related hip dysplasia with a peri-acetabular osteotomy or FAI with hip arthroscopy and had a preoperative CT scan completed were retrospectively reviewed. Automated segmentation was used to quantify operative-side gluteal muscle volumes within a standardized ischium-to-L5 anatomic window on the side that underwent surgery. Operative-side CSA was also measured at the following femoral head–referenced axial slice levels: 1 femoral head diameter proximal to the femoral head center (+1FH), the femoral head center itself (mid-FH), and 1 femoral head diameter distal to the femoral head center (−1FH). Unadjusted comparisons were performed using Welch 2-sample t-tests. Adjusted models that controlled for age, sex, BMI, CT acquisition year, CT study type, index surgery laterality, and bilateral pathology were then performed using log-linear models. Matched sensitivity analyses were also performed, using age, sex, and BMI for matching. Results 378 hips were evaluated (40 dysplasia, 338 FAI). The mean age was 25.5 ± 7.0 years, and mean BMI was 25.6 ± 4.5 kg/m2. In the unadjusted analyses, operative-side gluteus maximus, medius, and minimus volumes were greater in the FAI cohort (all p<0.001). After adjustment, the FAI cohort continued to have greater gluteus medius volume (+7.8%, 95% CI 2.1% to13.8%; p=0.007) and gluteus minimus volume (+6.1%, 95% CI 0.1% to 12.5%; p=0.046), whereas gluteus maximus volume did not differ significantly (+5.0%, 95% CI −1.0% to 11.5%; p=0.106). The strongest between-cohort differences were seen in the standardized CSA measures at +1FH, where the FAI cohort demonstrated greater gluteus maximus (+7.3%, p=0.006), gluteus medius (+12.4%, p=0.001), and gluteus minimus (+19.3%, p<0.001) CSA. In the matched sensitivity analyses, differences remained significant for gluteus medius muscle volume and for +1FH CSA across all 3 gluteal muscles. Conclusions Patients undergoing hip arthroscopy for FAI demonstrate greater gluteus medius and minimus muscle volumes on the operative side compared to those undergoing open surgery for acetabular-related hip dysplasia. Cross-sectional area muscle volumes of the operative hip at the level of one femoral head proximal to the center of the femoral head also demonstrated greater gluteus muscle volume sizes in the FAI cohort over the dysplasia cohort.
Reference Key
openalex_W7220412504 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Mitchell Cin, Sven A. Holcombe, DO Steven Soliman, Alex L. Gornitzky, Ira Zaltz, Matthew J. Hartwell
Are you one of these authors? Claim your profile
Journal Journal of hip preservation surgery
Year 2026
DOI
10.1093/jhps/hnag043.339
URL
https://doi.org/10.1093/jhps/hnag043.339
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.