Bensler Susanne, Agten Christoph A, Pfirrmann Christian W A, Sutter Reto
Department of Radiology, Orthopedic University Hospital Balgrist, Forchstrasse 340, 8008, Zurich, Switzerland.
Faculty of Medicine, University of Zurich, Pestalozzistrasse 4, 8091, Zurich, Switzerland.
Skeletal Radiol. 2018 Jan;47(1):69-77. doi: 10.1007/s00256-017-2763-x. Epub 2017 Aug 24.
To investigate the different morphologic types of the fovea capitis femoris and the spectrum of osseous spurs/osteophytes of the fovea in asymptomatic volunteers and patients with hip osteoarthritis.
Sixty-five patients (mean age 63.6 years) with radiographically confirmed osteoarthritis of the hip and 59 asymptomatic healthy volunteers (mean age 33.9 years) underwent non-contrast MRI of the hip joint. Two radiologists independently evaluated all images. Fovea morphology (standard type, diamond type, flat type, triangular type) as well as the frequency, size and location of spurs/osteophytes of the fovea were assessed. Descriptive and inferential statistics were applied.
The most frequent morphologic type of the fovea capitis femoris was the standard type for both asymptomatic volunteers (average 45%) and patients (average 49%). Osseous spurs were detected in 70% of the asymptomatic volunteers, and 97% of the patients had osteophytes. Spur size at all locations was significantly smaller in asymptomatic volunteers (range 1-2 mm) than osteophyte size in patients (range 1-4 mm) (p ≤ 0.035). In volunteers and patients, the spurs/osteophytes were most frequently located at the anterior border of the fovea capitis femoris.
Smaller osseous spurs (<2 mm) at the border of the fovea capitis femoris are very common in asymptomatic volunteers and do not seem to be pathologic.
研究无症状志愿者及髋骨关节炎患者股骨头凹的不同形态类型以及股骨头凹处骨赘的情况。
65例经影像学证实患有髋骨关节炎的患者（平均年龄63.6岁）和59例无症状健康志愿者（平均年龄33.9岁）接受了髋关节非增强MRI检查。两名放射科医生独立评估所有图像。评估股骨头凹形态（标准型、菱形型、扁平型、三角形）以及股骨头凹处骨赘的频率、大小和位置。应用描述性和推断性统计学方法。
对于无症状志愿者（平均45%）和患者（平均49%），股骨头凹最常见的形态类型均为标准型。70%的无症状志愿者检测到骨赘，97%的患者有骨赘。无症状志愿者所有位置的骨赘大小（范围1 - 2毫米）明显小于患者的骨赘大小（范围1 - 4毫米）（p≤0.035）。在志愿者和患者中，骨赘最常位于股骨头凹的前缘。
股骨头凹边缘较小的骨赘（<2毫米）在无症状志愿者中非常常见，似乎并非病理性的。
