Cam-Type Femoroacetabular Impingement

Streit, Jonathan J.; Fortun, Chad M.; Salata, Michael J.

doi:10.1053/j.otsm.2012.10.002

Cited by 5 publications

(5 citation statements)

References 36 publications

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“…Another study showed significant increase in TFL cross-sectional area of the non-injured leg 31. The impingement pain induced by symptomatic FAI3 48 may play a role in inhibiting muscle contraction around the hip. Studies have shown experimentally induced knee joint pain reduces flexion and extension muscle strength by 5–15% compared with the control conditions56 and patients suffering with knee OA reported 20–40% less quadriceps strength than healthy controls 57.…”

Section: Discussionmentioning

confidence: 94%

Physical impairments in symptomatic femoroacetabular impingement: a systematic review of the evidence

Freke

Kemp

Svege³

et al. 2016

Br J Sports Med

122

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Section: Discussionmentioning

confidence: 94%

Physical impairments in symptomatic femoroacetabular impingement: a systematic review of the evidence

Freke

Kemp

Svege³

et al. 2016

Br J Sports Med

122

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“…Symptomatic cam-type femoroacetabular impingement (FAI) is frequently associated with bone exostosis of the femoral head-neck (FHN) junction which impact upon the acetabular labrum and cartilage particularly during flexion and internal rotation of the hip joint (Tannast et al 2007, Streit et al 2012, Aliprandi et al 2014. Cam lesions have been suggested to alter hip joint loading, which predisposes to labral and cartilage damage at the anterosuperior acetabular rim due to abnormal shear and compressive forces that may lead to degenerative joint disease (Wagner et al 2003, Tannast et al 2008.…”

Section: Introductionmentioning

confidence: 99%

Automated 3D quantitative assessment and measurement of alpha angles from the femoral head-neck junction using MR imaging

et al. 2015

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To develop an automated approach for 3D quantitative assessment and measurement of alpha angles from the femoral head-neck (FHN) junction using bone models derived from magnetic resonance (MR) images of the hip joint.Bilateral MR images of the hip joints were acquired from 30 male volunteers (healthy active individuals and high-performance athletes, aged 18-49 years) using a water-excited 3D dual echo steady state (DESS) sequence. In a subset of these subjects (18 water-polo players), additional True Fast Imaging with Steady-state Precession (TrueFISP) images were acquired from the right hip joint. For both MR image sets, an active shape model based algorithm was used to generate automated 3D bone reconstructions of the proximal femur. Subsequently, a local coordinate system of the femur was constructed to compute a 2D shape map to project femoral head sphericity for calculation of alpha angles around the FHN junction. To evaluate automated alpha angle measures, manual analyses were performed on anterosuperior and anterior radial MR slices from the FHN junction that were automatically reformatted using the constructed coordinate system.High intra-and inter-rater reliability (intra-class correlation coef cients > 0.95) was found for manual alpha angle measurements from the auto-extracted anterosuperior and anterior radial slices. Strong correlations Our automatic 3D method analysed MR images of the hip joints to generate alpha angle measures around the FHN junction circumference with very good reliability and reproducibility. This work has the potential to improve analyses of cam-type lesions of the FHN junction for large-scale morphometric and clinical MR investigations of the human hip region.

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“…It is common, however, for patients to present with a combination of both. Repetitive abnormal contact between the head/neck junction and the rim of the acetabulum, particularly during hip flexion, adduction and internal rotation, leads to progressive trauma to the labrum and subsequent delamination of the articular cartilage [46, 52]. Progressive symptoms develop including hip/groin pain and stiffness, with increasing restriction of hip motion, decreased functional ability and eventually irreversible chondral damage may lead to osteoarthritis of the hip [10, 16, 43].…”

Section: Introductionmentioning

confidence: 99%

Arthroscopic correction of femoroacetabular impingement improves athletic performance in male athletes

Mullins

Hanlon

Carton

2019

Knee Surg Sports Traumatol Arthrosc

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Purpose To measure the changes in athletic performance in athletes treated arthroscopically for femoroacetabular impingement and compare results to a matched controlled athletic cohort, over a 1‐year period. Methods Male athletes scheduled for arthroscopic correction of symptomatic FAI were recruited and tested (pre‐operatively and 1‐year postsurgery) for measures of athletic performance which included acceleration (10‐m sprint), change of direction speed (CODS), squatting depth, and reactive strength index (RSI). The FAI group was compared to a matched, healthy, control group who were tested at baseline and 1 year later with no disruption to their regular training or competition status; the prevalence of anterior groin pain during testing in either group was recorded. Hip range of motion (ROM) was also measured for both groups at baseline and at 1 year in the FAI group to look for change following intervention. Results Prior to surgery, the FAI group were slower than the control group (p < 0.001) for acceleration (3% slower) and CODS (10% slower). At 1 year, 91% of the FAI group returned to full competition at an average time of 17 weeks, while substantial reductions in pain were also noted during acceleration (51–6%, p = 0.004), CODS (62–8%, p = 0.001), and squat test (38–8%, p = 0.003). Significant improvements were seen in the FAI group for CODS (7%, p < 0.001) and squat depth measures (6%, p = 0.004) from baseline to 1 year (significant time × group interaction effects were noted for these also). The changes in performance in the control group over time were non‐significant across all of the measures (n.s.). At 1‐year postsurgery, there were no statistically significant differences between the groups for any of the athletic measures. There was a significant and clinically important improvement in range of hip motion in the FAI group at 1‐year postsurgery (p < 0.05). Conclusion Symptomatic FAI causes substantial reductions in athletic performance compared to healthy competitors placing these athletes at a distinct performance disadvantage. The results from the current study demonstrate that arthroscopic correction (including labral repair) in athletes with symptomatic FAI, reduces pain and restores athletic performance to a level which is comparable to healthy athletes, at 1 year. Level of evidence II.

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Cam-Type Femoroacetabular Impingement

Cited by 5 publications

References 36 publications

Physical impairments in symptomatic femoroacetabular impingement: a systematic review of the evidence

Physical impairments in symptomatic femoroacetabular impingement: a systematic review of the evidence

Automated 3D quantitative assessment and measurement of alpha angles from the femoral head-neck junction using MR imaging

Arthroscopic correction of femoroacetabular impingement improves athletic performance in male athletes

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