Prevalence of Cam-Type Morphology in Elite Ice Hockey Players

Lerebours, Frantz; Robertson, William J.; Neri, Brian R.; Schulz, Brian; Youm, Thomas; Limpisvasti, Orr

doi:10.1177/0363546515624671

Cited by 69 publications

(78 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A single reviewer was used to evaluate radiographic angles, which was in keeping with other published studies that have evaluated radiographic FAI in athletes. 14 , 21 A sports medicine fellow who had undergone training in the measurement of radiographic angles by both a sports medicine physician and an attending musculoskeletal radiologist evaluated the radiographs. The fellow was unaware of the underlying type(s) of FAI diagnosed in each patient.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Bony Morphology of Femoroacetabular Impingement in Young Female Dancers and Single-Sport Athletes

Fraser

Sugimoto

Yeng

et al. 2017

Orthopaedic Journal of Sports Medicine

View full text Add to dashboard Cite

Background:Femoroacetabular impingement (FAI) is a painful and limiting condition of the hip that is often seen in young athletes. Previous studies have reported a higher prevalence of this disorder in male athletes, but data on the structural morphology of adolescent and young adult female athletes, specifically those involved in dance, are lacking.Purpose:(1) To investigate the radiographic morphology of FAI deformities in adolescent and young adult female single-sport dance and nondance athletes and (2) to examine the differences in the radiographic findings between these 2 groups.Study Design:Cross-sectional study; Level of evidence, 3.Methods:A retrospective chart review of 56 female single-sport athletes 10 to 21 years of age with a diagnosis of FAI within a single-sports medicine division of a pediatric academic medical center was performed. Acetabular index (AI), lateral center-edge angle (LCEA), crossover sign, and ischial spine sign were measured bilaterally on anteroposterior radiographs; alpha angle (AA) was measured on lateral films, and anterior center-edge angle (ACEA) was measured on false-profile films. Independent t tests and Mann-Whitney U tests were used to compare mean angle measurements between dance and nondance athletes. Dichotomized categorical variables and crossover and ischial spine signs were analyzed between dance and nondance athletes by applying a chi-square test. Statistical significance was set as P < .05 a priori.Results:Significant differences in angle measurements were noted. AA was significantly lower in the dancers compared with the nondance athlete group (49.5° ± 6.0° vs 53.9° ± 7.3°, P = .001). The LCEA and ACEA of dance athletes were significantly greater compared with nondance athletes (33.8° ± 6.7° vs 30.9° ± 5.8° [P = .016] and 36.0° ± 8.1° vs 32.3° ± 7.0° [P = .035], respectively). No significant difference in AI was seen between the 2 cohorts (5.0° ± 4.0° for dancers vs 5.9° ± 3.4° for nondancers, P = .195).Conclusion:Significant differences existed in the radiographic bony morphology of young female single-sport dance athletes compared with nondance athletes with FAI. In dance athletes, symptoms were seen in the setting of normal bony morphology.

show abstract

Section: Methodsmentioning

confidence: 99%

“… 10 , 15 Multiple studies have shown that the athletic population appears to have a higher prevalence of FAI, specifically cam-type deformities, than do nonathletes. 1 , 6 , 11 , 17 , 21 …”

mentioning

confidence: 99%

Bony Morphology of Femoroacetabular Impingement in Young Female Dancers and Single-Sport Athletes

Fraser

Sugimoto

Yeng

et al. 2017

Orthopaedic Journal of Sports Medicine

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown that CAM deformity at the head–neck junction of the hip joint, detected by the α angle according to Nötzli, can be found in approximately 23% of the general population (Frank et al, ; Nötzli et al, ). In athletes, the prevalence of asymptomatic CAM‐type FAI may even be higher than 50% (Gerhardt et al, ; Lerebours et al, ). Irrespective of the patient's sex, this study presents evidence of CAM deformity in 47.7% (α ≥ 60°) or even 76.7% (α ≥ 50°) of the ONFH patients in our cohort.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of CAM deformity and its influence on therapy success in patients with osteonecrosis of the femoral head

Serong

Haversath

Jäger

et al. 2019

J Tissue Eng Regen Med

View full text Add to dashboard Cite

Osteonecrosis of the femoral head (ONFH) and CAM-type femoroacetabular impingement (FAI) present two different pathologies of the hip joint. The aim of this study is to describe the prevalence of CAM-FAI in a collective of ONFH hips and to evaluate its influence on ONFH therapy outcome. A cohort of 86 ONFH hips with a mean follow-up of 46.7 months (±20.5) after advanced core decompression (ACD) was evaluated regarding CAM deformity by measuring the alpha angle (α) and headneck offset. The influence of CAM-type FAI was investigated using the Kaplan-Meier estimator and the Cox regression model. The mean α was 60.4°(±13.8) with 41 hips (47.7%) being ≥60°. The mean head-neck offset was 4.5 mm (±3.2), with 78 hips (90.7%) being ≤9 mm. Survival analysis indicated noticeably better ACD results for α < 60°versus α ≥ 60°(p = 0.07). Treatment failure within the first 2 years was statistically estimated as 27.7% for α < 60°versus 40.7% for α ≥ 60°: The hazard ratio for α ≥ 60°was 1.94. Head-neck offset-dependent survival showed better, though not significant, results for offset >9 mm (p = 0.38, hazard ratio 1.89 for offsets ≤9 mm). The prevalence of CAM-type deformity is greatly increased in patients with concomitant ONFH. There is a strong indication that CAM-type FAI has a negative influence on ONFH therapy outcome. The risk that ONFH treatment will fail seems to be twice as high for α ≥ 60°as for α < 60°. We recommend cotreatment of pathological head-neck offset in patients with ONFH.

show abstract

“…A correlation between limited hip internal rotation range of motion and cam-type morphology has been suggested, although all of these subjects were asymptomatic 14 18 19. High prevalence of limited hip internal rotation in American football players18 and external rotation range of motion in hockey players20 might even suggest a normal sport adaptation rather than pathology. Thus, limitations in range of motion should be reported consistently in surgical studies to ascertain its relationship to FAIS.…”

Section: Discussionmentioning

confidence: 99%

Surgical criteria for femoroacetabular impingement syndrome: a scoping review

et al. 2017

View full text Add to dashboard Cite

BackgroundThe purpose of this review was to analyse and report criteria used for open and arthroscopic surgical treatment of femoroacetabular impingement syndrome (FAIS).MethodsA librarian-assisted computer search of Medline, CINAHL and Embase for studies related to criterion for FAIS surgery was used in this study. Inclusion criteria included studies with the primary purpose of surgery or surgical outcomes for treatment of FAIS with and without labral tear, and reporting criteria for FAIS surgery.ResultsDiagnostic imaging was a criterion for surgery in 92% of the included studies, with alpha angle the most frequently reported (68% of studies) criterion. Reporting of symptoms was a criterion for surgery in 75%, and special tests a criterion in 70% of studies. Range-of-motion limitations were only a required criterion in 30%, only 12% of studies required intra-articular injection and 44% of studies described previously failed treatment (non-surgical or physiotherapist-led rehabilitation) as a criterion for surgery. Only 56% of included studies utilised the combination of symptoms, clinical signs and diagnostic imaging combined for diagnosis of FAIS as suggested by the Warwick Agreement on FAIS meeting.ConclusionDiagnostic imaging evidence of FAIS was the most commonly reported criterion for surgery. Only 56% of included studies utilised the combination of symptoms, clinical signs and diagnostic imaging for diagnosis of FAIS as suggested by the Warwick Agreement on FAIS meeting, and only 44% of studies had failed non-surgical treatment (and 18% a failed trial of physiotherapy) as a criterion for surgery.

show abstract

Prevalence of Cam-Type Morphology in Elite Ice Hockey Players

Abstract: The study data suggest that elite ice hockey players have a significantly higher prevalence of radiographic cam deformity in comparison to what has been reported for the general population.

Cited by 69 publications

References 32 publications

Bony Morphology of Femoroacetabular Impingement in Young Female Dancers and Single-Sport Athletes

Bony Morphology of Femoroacetabular Impingement in Young Female Dancers and Single-Sport Athletes

Prevalence of CAM deformity and its influence on therapy success in patients with osteonecrosis of the femoral head

Surgical criteria for femoroacetabular impingement syndrome: a scoping review

Contact Info

Product

Resources

About