ArticleArthroscopy, sports medicine, and rehabilitation2025
Larger Zona Orbicularis Size on Magnetic Resonance Imaging Is Not Associated With Increased Resistance to Axial Distraction of the Hip Joint.
Article in Arthroscopy, sports medicine, and rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- L-Capsulotomy and Anatomic Repair of Zona Orbicularis: Hip Arthroscopy Capsular Management for Femoroacetabular Impingement Syndrome.Arthroscopy techniques · 2026Article
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Authors and funding
7 authors.
Funding
Abstract
Purpose: To evaluate the relation between zona orbicularis (ZO) thickness on magnetic resonance imaging and distractibility of the hip in patients undergoing hip arthroscopy. Methods: We conducted a retrospective review of primary hip arthroscopy patients treated for femoroacetabular impingement syndrome from December 2021 to September 2022. Prior to arthroscopy, hips were subjected to 100 lb of force (lbf) with fluoroscopic images taken to calculate joint space and overall distraction distance. The ZO was measured on coronal sequences of preoperative magnetic resonance imaging or magnetic resonance arthrography. Multivariable linear regression was performed and controlled for age, sex, body mass index, and lateral center-edge angle. Results: Sixty-eight patients were included in the final analysis. The mean age was 34.5 ± 12.4 years. The mean joint space at 100-lbf axial traction was 11.0 ± 3.8 mm, and the mean distraction distance was 6.6 ± 3.7 mm. The mean ZO size was 3.2 ± 1.0 mm. Linear regression showed no relation between ZO size and joint space at 100 lbf (β = -0.109, Conclusions: The results of this study show no significant association between ZO size and resistance to axial traction at the hip joint. Clinical Relevance: Our results suggest that the resistance to axial traction on the hip from the ZO is conferred by its overall integrity and presence-and is not dependent on its size-and that, likely, deviations in other soft-tissue restraints contribute to the spectrum of hip stability experienced by patients.
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Registered trials
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