ArticleBMJ open sport & exercise medicine2021
Cam morphology is associated with MRI-defined cartilage defects and labral tears: a case-control study of 237 young adult football players with and without hip and groin pain.
Article in BMJ open sport & exercise medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.
- Cam morphology and the risk of developing radiographic hip osteoarthritis within 8 years: an individual participant data meta-analysis of 23 886 hips from the world COACH consortium.British journal of sports medicine · 2026Pooled it
- Reply to 'Is cam morphology a cause of osteoarthritis?'Nature reviews. Rheumatology · 2026Article
- Hip Joint Loading During Walking Is Associated With Cartilage Defect Severity in Young Adult Football Players With Hip/Groin Pain.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026Article
- Asymmetric bony hip morphology in asymptomatic professional baseball pitchers: a cross-sectional cohort study.BMC sports science, medicine & rehabilitation · 2026Article
- Cam morphology and the development of femoroacetabular impingement syndrome and hip osteoarthritis.Nature reviews. Rheumatology · 2026Review
- Associated Factors of Primary Cam Morphology in 4477 Early Adolescents: A Multiethnic, Population-Based, Cross-sectional Study (Generation R).Orthopaedic journal of sports medicine · 2025Article
- Prevalence of Asymptomatic Hip Joint Abnormalities Among Adult Professional Soccer Players and Their Association With Age and Limb Dominance.Arthroscopy, sports medicine, and rehabilitation · 2025Article
- Cam Morphology and Sex-Based Differences in the Proximal Femur Anatomy of Collegiate Athletes Without Hip Pain: A 3-Dimensional Statistical Shape Modeling Analysis.Orthopaedic journal of sports medicine · 2025Article
- Asymptomatic female softball pitchers have altered hip morphology and cartilage composition.Scientific reports · 2025Article
- Muscle Fat and Volume Differences in People With Hip-Related Pain Compared With Controls: A Machine Learning Approach.Journal of cachexia, sarcopenia and muscle · 2024Article
- Comparison of Step-Based Metrics Under Laboratory and Free-Living Conditions in Femoroacetabular Impingement Syndrome.Journal of athletic training · 2024Article
- Relationship Between Hip and Groin Pain and Hip Range of Motion in Amateur Soccer and Australian Rules Football Players.Orthopaedic journal of sports medicine · 2024Article
- Femoroacetabular impingement syndrome in middle-aged individuals is strongly associated with the development of hip osteoarthritis within 10-year follow-up: a prospective cohort study (CHECK).British journal of sports medicine · 2024Article
- Defining hip osteoarthritis feature prevalence, severity, and change using the Scoring of Hip Osteoarthritis with MRI (SHOMRI).Skeletal radiology · 2024Article
- The Association Between the Development of Cam Morphology During Skeletal Growth in High-Impact Athletes and the Presence of Cartilage Loss and Labral Damage in Adulthood: A Prospective Cohort Study With a 12-Year Follow-up.The American journal of sports medicine · 2024Article
- Hip geometric parameters are associated with radiographic and clinical hip osteoarthritis: Findings from a cross-sectional study in UK Biobank.Osteoarthritis and cartilage · 2023Article
- Association of Chondrolabral Lesions with Ultrasound-Guided Detection of Pathological Head-Neck Contour.Diagnostics (Basel, Switzerland) · 2023Article
- Prospective evaluation of sport activity and the development of femoroacetabular impingement in the adolescent hip (PREVIEW): results of the pilot study.Pilot and feasibility studies · 2022Article
- Are cam morphology size and location associated with self-reported burden in football players with FAI syndrome?Scandinavian journal of medicine & science in sports · 2022Article
- Does Femoroacetabular Impingement Syndrome Affect Self-Reported Burden in Football Players With Hip and Groin Pain?Sports healthArticle
Corrections and comments
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Authors and funding
13 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveFootball players are at risk of developing hip osteoarthritis (OA). Cam morphology (present in almost two of every three football players) may explain this heightened risk, but there is limited research on its role in hip OA development in younger athletes. Knowledge of this relationship will advance our understanding of the aetiology of hip OA in football players. We aimed to study the relationship between cam morphology size and MRI-defined cartilage defects and labral tears, and if this relationship differs by symptomatic state in young adult football players.
methodsFor this case-control study, 182 (288 hips) symptomatic (hip and/or groin pain >6 months and positive flexion-adduction-internal-rotation (FADIR) test) and 55 (110 hips) pain-free football players (soccer or Australian football) underwent anteroposterior and Dunn 45° radiographs, and 3-Tesla MRI. Cam morphology size was defined using alpha angle, and cartilage defects and labral tears were scored semiquantitatively. Presence, location and score (severity) of cartilage defects and labral tears were determined. Each participant completed the International Hip Outcome Tool 33 and Copenhagen Hip and Groin Outcome Score.
resultsGreater alpha angle was associated with cartilage defects (OR 1.03, 95% CI 1.01 to 1.04) and labral tears (OR 1.02, 95% CI 1.01 to 1.04). Greater alpha angle was associated with superolateral cartilage defects (OR 1.03, 95% CI 1.02 to 1.05) and superior labral tears (OR 1.03, 95% CI 1.02 to 1.05). The association of alpha angle with MRI-defined cartilage defects and labral tears was no greater in football players with symptoms than in those without (p=0.189-0.937).
conclusionCam morphology size was associated with cartilage defects and labral tears in young adult football players with and without pain. This study provides evidence that cam morphology may contribute to the high prevalence of hip OA in football players. Prospective studies of football players are now needed to establish if cam morphology causes progression of cartilage defects and labral tears and development of hip OA.
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