摘要:Objective To analyse the X-ray and Magnetic resonance imaging (MRI) features of acetabular labral tears, so that to improve the recognition of the disease. Methods Imaging features of 19 patients with acetabular labral tears confirmed by arthroscopy were analyzed retrospectively (All cases were examined by X-ray, 14 patients underwent MRI examinations). Results ①17 of the 19 patients had at least one osseous abnormality consistent with femoroacetabular impingement (FAI) under arthroscopy, among them 7 cases were cam impingement, 3 cases were pincer impingement and 7 cases were mixed impingement. ② X-ray manifestations: 12 of the 19 patients had FAI, among them 6 cases were cam impingement, 2 cases were pincer impingement and 4 cases were mixed impingement. 5 cases showed various degrees of degenerations of hip joint. 2 patients had no identifiable structural abnormalities. ③MRI showed various degrees of injury of labrum in 6 patients, joint effusion in 5 cases, bone marrow edema of femoral head in 3 cases. Conclusion FAI has much to do with acetabular labral tears. X-ray examination is important for FAI diagnosis. Given its high sensitivity and accuracy, MRI is an effective preoperative tool for defining the location and extent of labral tears. Combined with X-ray imaging and clinical manifestation, MRI can provide a reliable basis for clinical diagnosis and treatment.% 目的 分析髋臼盂唇损伤的X线及MRI表现,为临床诊断髋臼盂唇损伤提供影像学依据.方法 回顾性分析19例经关节镜手术证实的髋臼盂唇撕裂患者的影像学表现(所有患者术前均行X线检查,14例行MRI平扫).结果 ①关节镜下发现,19例髋臼盂唇撕裂患者中17例存在股髋撞击,其中7例为凸轮型撞击,3例为钳夹型撞击,7例为混合型撞击.②X线表现:12例存在股髋撞击,其中6例为凸轮型撞击,2例为钳夹型撞击,4例为混合型撞击;5例表现为程度不一的髋关节退行性改变;2例未见明显异常.③MRI表现:6例显示不同程度盂唇损伤,5例显示关节积液,3例显示股骨头骨髓水肿.结论 髋臼盂唇撕裂与股髋撞击综合征关系密切,X线对股髋撞击综合征的诊断有重要意义, MRI具有较高的组织分辨率,能更好地反映出盂唇撕裂的细微征象,结合X线及临床表现,可为临床制定治疗方案提供可靠依据.