Georgiadis Andrew G, Seeley Mark A, Chauvin Nancy A, Sankar Wudbhav N
Division of Orthopaedic Surgery, The Children's Hospital of Philadelphia, 34th and Civic Center Blvd, Philadelphia, PA, 19104, USA.
Division of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
J Child Orthop. 2016 Apr;10(2):149-54. doi: 10.1007/s11832-016-0717-9. Epub 2016 Feb 24.
Magnetic resonance imaging (MRI) is a sensitive, non-invasive modality to diagnose acetabular labral pathology, and the normal variants of the acetabular labrum have been characterized in adults. However, the prevalence of labral pathology in the asymptomatic pediatric population is unknown.
All pelvic MRIs performed at a large tertiary-care children's hospital were reviewed during one calendar year (2014). Only patients aged between 2 and 18 years were included, and scans were excluded for hip pain/pathology or technical inadequacy. A blinded pediatric musculoskeletal radiologist read all eligible scans for the presence or absence of a labral tear.
Three hundred and ninety-four pelvic MRIs were screened, and patients were excluded for hip pain/pathology (85 subjects), or technical inadequacy (190 subjects). One hundred and eight subjects (216 hips) met the inclusion criteria and were technically adequate for analysis. Labral tears were visualized in three of 216 (1.4 %) hips (two of the 110 subjects; 1.9 %).
There is a low rate of asymptomatic labral pathology by MRI in pediatric patients. The clinical history remains the means of differentiating real labral pathology from spurious imaging findings.
Case series (prevalence).
磁共振成像（MRI）是诊断髋臼盂唇病变的一种敏感、非侵入性的检查方法，髋臼盂唇的正常变异已在成人中得到描述。然而，无症状儿童人群中盂唇病变的患病率尚不清楚。
回顾了一家大型三级儿童医院在一个日历年（2014年）进行的所有骨盆MRI检查。仅纳入年龄在2至18岁之间的患者，因髋关节疼痛/病变或技术欠佳而排除扫描。一位不知情的儿科肌肉骨骼放射科医生阅读所有符合条件的扫描图像，以确定是否存在盂唇撕裂。
筛查了394例骨盆MRI，因髋关节疼痛/病变（85例）或技术欠佳（190例）而排除患者。108例受试者（216个髋关节）符合纳入标准且技术上适合分析。在216个（1.4%）髋关节中的3个（110例受试者中的2例；1.9%）可见盂唇撕裂。
儿科患者中通过MRI检测到的无症状盂唇病变发生率较低。临床病史仍然是区分真正的盂唇病变与虚假影像表现的方法。
证据等级IV：病例系列（患病率）。
