ArticleOrthopaedic journal of sports medicine2020
Para-acetabular Radiopaque Densities in Patients With Femoroacetabular Impingement: A Retrospective Assessment of Prevalence and Characteristics.
Article in Orthopaedic journal of sports medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 10 citations in OpenAlex.
- Outcomes following arthroscopic treatment for femoroacetabular impingement syndrome in patients with ossified labrum.Journal of hip preservation surgery · 2026Article
- Acetabular Rim Ossification Variants Are Found in Almost 20% of Patients Presenting With Hip Pain.Arthroscopy, sports medicine, and rehabilitation · 2023Article
- Clinical outcomes after arthroscopic treatment of calcification with surrounding inflammation in the hip labrum.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Review
- Acetabular Rim Variants.Video journal of sports medicineArticle
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFemoroacetabular impingement (FAI) syndrome is a common source of hip pain associated with chondrolabral injury. There is a subset of patients with FAI syndrome who present with radiopaque densities (RODs) adjacent to the acetabular rim. PURPOSE: To evaluate the prevalence, characteristics, and patient-specific factors associated with RODs adjacent to the acetabulum in patients treated with hip arthroscopy for symptomatic FAI. STUDY
designCase series; Level of evidence, 4.
methodsBetween November 2014 and March 2018, a total of 296 patients who underwent hip arthroscopy for FAI with a labral tear were reviewed retrospectively. Patient-specific variables were collected, including age, sex, lateral center-edge angle (LCEA), and alpha angle. Imaging (computed tomography) and surgical reports were reviewed for the location and characteristics of RODs, as well as subsequent labral treatment technique. Patients were excluded if they were treated for extra-articular hip pathology, had a revision procedure, or had a diagnosis other than FAI with a labral tear. No patient was excluded for any history of systemic inflammatory disease. Binary logistic regression was used to compare age, LCEA, and alpha angle for patients with or without radiopaque fragments. An alpha level of 0.05 was used to indicate statistical significance.
resultsA total of 204 patients met inclusion criteria; 33 patients (16.2%; 16 males, 17 females) had para-acetabular RODs. There were no statistically significant differences in age (
conclusionAge, sex, LCEA, and alpha angle were not predictive of the presence of para-acetabular RODs. Approximately one-sixth of all patients with FAI had RODs identified on computed tomography, which were typically located at the anterosuperior acetabulum. The majority of hips with para-acetabular RODs were amenable to labral repair. The relative prevalence and lack of predictive patient-specific indicators for these fragments suggest that a high degree of suspicion is necessary when evaluating patients with FAI.
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