ArticleLa Radiologia medica2026
Early post-operative MR appearance of the acetabular labrum after arthroscopic repair.
Article in La Radiologia medica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveDescribe the early non-arthrographic MRI appearance of the acetabular labrum after arthroscopic surgery for femoroacetabular impingement and labrum repair.
methodsEleven subjects (12 hips, 8 hips of females; mean age: 25.8 years, SD: 3.0) with a pre-operative MRI demonstrating a labrum tear and symptoms of femoroacetabular impingement were prospectively enrolled. Non-arthrographic images were obtained on a 3 T MRI scanner < 4 weeks after arthroscopic surgery for femoroacetabular impingement. Imaging features of the labrum, capsule, and cartilage were systematically assessed by two independent fellowship-trained musculoskeletal radiologists. Disagreements were resolved through consensus mediated by a musculoskeletal radiologist with 20 + years of experience and expertise in hip imaging.
resultsThe appearance of a persistent labral tear and increased intrasubstance signal was observed in all hips. The labrum appeared shortened in 92% (11/12). The geographic distribution of abnormal labral signal corresponded to the same number of labrum quadrants treated surgically in 67% (8/12). There was an even distribution of hips showing abnormal signal across a smaller and larger portion of the labrum than was treated arthroscopically, seen in 17% (2/12), respectively. The appearance of a capsular defect was observed in 92% (11/12).
conclusionIn the first 4 weeks after arthroscopic labrum repair surgery for femoroacetabular impingement, it is common for the labrum to appear shortened with a persistent appearance of a labrum tear and increased signal in the repaired segment. The capsule often appears discontinuous, even when capsular closure is performed.
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