Abstract：
UNASSIGNED: Breaking has gained public attention as a form of sports activity. The associated intense movements of the hip joints are possibly linked to the development of femoroacetabular impingement (FAI). Therefore, this study aimed to assess clinical and radiographic FAI measures in professional breakers compared to hobby athletes.
UNASSIGNED: The study cohort consisted of professional breakers with persisting hip pain who were 1:1 matched to a cohort of FAI patients without professional sports careers from our outpatient clinic. The primary endpoint assessed on standardized plain radiographs was the alpha angle (AA). Further measures were the acetabular index (AI), lateral center-edge angle (LCEA), crossover sign, ischial spine sign, and femoral head extrusion index (FHEI). The modified Harris Hip Score (mHHS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score were used to obtain patient-reported measures.
UNASSIGNED: We recruited ten professional breakers and matched them to ten hobby athletes. The median AA was significantly higher in the breakers compared with the hobby athletes (73° [IQR 66.5°, 84.2°]) vs. 61.8° [IQR 59.5°, 64.8°], p = 0.0004). There was a significant reduction in weekly training hours in breakers after diagnosis (13.0 hours [interquartile range [IQR] 9.5, 32.4] to 1.5 hours [IQR 0, 4.8], p = 0.0039). There were no inter-group differences regarding mHHS, WOMAC, and additional radiographic measurements.
UNASSIGNED: Breakers have higher AA in cam-type FAI compared to nonprofessional athletes. The corresponding hip pain significantly reduced training hours and caused the end of their breaking career. The potentially high prevalence of FAI in breakers and the corresponding consequences need to be considered early when athletes present with hip pain.
UNASSIGNED: The study cohort consisted of professional breakers with persisting hip pain who were 1:1 matched to a cohort of FAI patients without professional sports careers from our outpatient clinic. The primary endpoint assessed on standardized plain radiographs was the alpha angle (AA). Further measures were the acetabular index (AI), lateral center-edge angle (LCEA), crossover sign, ischial spine sign, and femoral head extrusion index (FHEI). The modified Harris Hip Score (mHHS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score were used to obtain patient-reported measures.
UNASSIGNED: We recruited ten professional breakers and matched them to ten hobby athletes. The median AA was significantly higher in the breakers compared with the hobby athletes (73° [IQR 66.5°, 84.2°]) vs. 61.8° [IQR 59.5°, 64.8°], p = 0.0004). There was a significant reduction in weekly training hours in breakers after diagnosis (13.0 hours [interquartile range [IQR] 9.5, 32.4] to 1.5 hours [IQR 0, 4.8], p = 0.0039). There were no inter-group differences regarding mHHS, WOMAC, and additional radiographic measurements.
UNASSIGNED: Breakers have higher AA in cam-type FAI compared to nonprofessional athletes. The corresponding hip pain significantly reduced training hours and caused the end of their breaking career. The potentially high prevalence of FAI in breakers and the corresponding consequences need to be considered early when athletes present with hip pain.
摘要：
■打破作为体育活动的一种形式已经引起了公众的关注。髋关节的相关剧烈运动可能与股骨髋臼撞击（FAI）的发展有关。因此,这项研究旨在评估与业余爱好运动员相比，专业运动员的临床和影像学FAI指标。
该研究队列由具有持续性髋部疼痛的专业破坏者组成，他们与我们门诊诊所没有专业运动职业的FAI患者队列1：1匹配。在标准化平片上评估的主要终点是α角(AA)。进一步的措施是髋臼指数（AI），横向中心边缘角(LCEA),交叉标志,坐骨脊柱征,和股骨头挤压指数(FHEI)。使用改良的Harris髋关节评分（mHHS）和西安大略省和麦克马斯特大学骨关节炎指数（WOMAC）评分来获得患者报告的指标。
■我们招募了10名专业选手，并将他们与10名爱好运动员相匹配。与爱好运动员相比，断路器的AA中位数明显更高（73°[IQR66.5°，84.2°])vs.61.8°[IQR59.5°,64.8°],p=0.0004)。诊断后，断路器的每周训练时间显着减少（13.0小时[四分位距[IQR]9.5，32.4]至1.5小时[IQR0，4.8]，p=0.0039）。关于mHHS没有组间差异，WOMAC,和额外的射线照相测量。
■与非职业运动员相比，凸轮型FAI断路器的AA较高。相应的髋部疼痛显着减少了训练时间，并导致了他们职业生涯的结束。当运动员出现髋部疼痛时，需要及早考虑FAI在断路器中的潜在高患病率以及相应的后果。
该研究队列由具有持续性髋部疼痛的专业破坏者组成，他们与我们门诊诊所没有专业运动职业的FAI患者队列1：1匹配。在标准化平片上评估的主要终点是α角(AA)。进一步的措施是髋臼指数（AI），横向中心边缘角(LCEA),交叉标志,坐骨脊柱征,和股骨头挤压指数(FHEI)。使用改良的Harris髋关节评分（mHHS）和西安大略省和麦克马斯特大学骨关节炎指数（WOMAC）评分来获得患者报告的指标。
■我们招募了10名专业选手，并将他们与10名爱好运动员相匹配。与爱好运动员相比，断路器的AA中位数明显更高（73°[IQR66.5°，84.2°])vs.61.8°[IQR59.5°,64.8°],p=0.0004)。诊断后，断路器的每周训练时间显着减少（13.0小时[四分位距[IQR]9.5，32.4]至1.5小时[IQR0，4.8]，p=0.0039）。关于mHHS没有组间差异，WOMAC,和额外的射线照相测量。
■与非职业运动员相比，凸轮型FAI断路器的AA较高。相应的髋部疼痛显着减少了训练时间，并导致了他们职业生涯的结束。当运动员出现髋部疼痛时，需要及早考虑FAI在断路器中的潜在高患病率以及相应的后果。
