Elsharkawi Karim Mohamed, Barakat Mohamed Samy, Farahat Ali Abdel Karim, Ahmed Amin Abdel-Razek Youssef, Bastawi Rim Aly
Alexandria University Faculty of Medicine, Alexandria, Egypt.
Radiol Bras. 2022 Sep-Oct;55(5):299-304. doi: 10.1590/0100-3984.2021.0133.
To evaluate the role of magnetic resonance imaging (MRI) in the assessment of femoral and acetabular version in developmental dysplasia of the hip (DDH).
This was a cross-sectional study of 20 consecutive patients with DDH (27 dysplastic hips) who were examined with MRI. In dysplastic and normal hips (DDH and comparison groups, respectively), we evaluated the following parameters: osseous acetabular anteversion (OAA); cartilaginous acetabular anteversion (CAA); femoral anteversion; osseous Mckibbin index (OMI); cartilaginous Mckibbin index (CMI); and the thickness of the anterior and posterior acetabular cartilage.
The OAA was significantly greater in the dysplastic hips. The CAA, femoral anteversion, OMI, and CMI did not differ significantly between the normal and dysplastic hips. In the DDH and comparison groups, the OAA was significantly lower than the CAA, the OMI was significantly lower than the CMI, and the posterior acetabular cartilage was significantly thicker than the anterior cartilage.
Our findings confirm that MRI is a valuable tool for the assessment of femoral and acetabular version in DDH. Preoperative MRI evaluation has great potential to improve the planning of pelvic and femoral osteotomies.
评估磁共振成像（MRI）在发育性髋关节发育不良（DDH）中对股骨和髋臼旋转角度评估的作用。
这是一项对20例连续的DDH患者（27个发育不良髋关节）进行MRI检查的横断面研究。在发育不良髋关节和正常髋关节（分别为DDH组和对照组）中，我们评估了以下参数：骨性髋臼前倾角（OAA）；软骨性髋臼前倾角（CAA）；股骨前倾角；骨性麦基宾指数（OMI）；软骨性麦基宾指数（CMI）；以及髋臼前后软骨的厚度。
发育不良髋关节的OAA显著更大。正常髋关节和发育不良髋关节之间的CAA、股骨前倾角、OMI和CMI无显著差异。在DDH组和对照组中，OAA显著低于CAA，OMI显著低于CMI，髋臼后软骨显著厚于前软骨。
我们的研究结果证实，MRI是评估DDH中股骨和髋臼旋转角度的有价值工具。术前MRI评估对于改善骨盆和股骨截骨术的规划具有巨大潜力。
