Department of Radiology, University Hospitals of Leicester, Leicester, UK.
Department of Musculoskeletal Radiology, Royal Orthopaedic Hospital, Bristol Road South, Northfield, Birmingham, UK.
Emerg Radiol. 2023 Oct;30(5):613-619. doi: 10.1007/s10140-023-02163-4. Epub 2023 Aug 4.
To assess the displacement of the supinator fat pad in radial head and neck fractures and to validate its significance.
One hundred two adult patients from the Royal Orthopaedic Hospital, Birmingham, United Kingdom and Sultan Qaboos University Hospital, Muscat, Oman with confirmed radial head and/or neck fractures were included. Fractures were classified using the Mason-Johnston classification. The displacement of the supinator fat pad from the radius was measured on anterior-posterior (AP) and lateral radiographs and correlated to fracture classification.
The supinator fat pad was on average displaced by 10.6 mm and 13.8 mm from the radius on AP and lateral radiographs, respectively. The displacement of the fat pad progressively increased between non-displaced (Mason I) and severely comminuted (Mason III) fractures on both the AP (10.25 to 14.25 mm) and lateral (12.70 to 16.00 mm) projections. The progression of displacement on AP (p = 0.016) and on lateral (p = 0.007) projections was statistically significant. Fracture dislocation was not associated with increased fat pad displacement.
The supinator fat pad sign is a useful adjunct in the assessment of radial head and neck fractures.
评估桡骨头和颈部骨折中旋后肌脂肪垫的移位，并验证其意义。
纳入了来自英国伯明翰皇家骨科医院和阿曼马斯喀特苏丹卡布斯大学医院的 102 名成人患者，这些患者均确诊为桡骨头和/或颈部骨折。使用 Mason-Johnston 分类法对骨折进行分类。在前后位（AP）和侧位 X 线片上测量旋后肌脂肪垫从桡骨的移位，并将其与骨折分类相关联。
旋后肌脂肪垫在 AP 和侧位 X 线上分别平均移位 10.6 毫米和 13.8 毫米。脂肪垫的移位在非移位（Mason I）和严重粉碎性（Mason III）骨折之间逐渐增加，在 AP（10.25 至 14.25 毫米）和侧位（12.70 至 16.00 毫米）投影上均如此。AP（p = 0.016）和侧位（p = 0.007）投影上的移位进展具有统计学意义。骨折脱位与脂肪垫移位增加无关。
旋后肌脂肪垫征是评估桡骨头和颈部骨折的有用辅助手段。
