每日一题_2025.12.04

A 26-year-old woman presented with pain in her left elbow after falling on an outstretched hand while ice-skating. Physical examination revealed left lateral elbow swelling and tenderness to palpation, a valgus deformity, and limited range of motion. Which of the following findings are present on the imaging?一名26岁女性在滑冰时摔倒，手掌撑地，随后出现左肘疼痛。体格检查显示左肘外侧肿胀、触痛、外翻畸形以及活动范围受限。以下哪项影像学表现是存在的？

A. Fracture of the shaft of the ulna尺骨骨干骨折

B. Fracture of the shaft of the ulna and dislocation of the radial head尺骨骨干骨折并桡骨头脱位

C. Fracture of the shaft of the ulna, fracture of the olecranon, and dislocation of the radial head尺骨骨干骨折、鹰嘴骨折及桡骨头脱位

D. Fracture of the shaft and coronoid process of the ulna and dislocation of the radial head尺骨骨干和冠突骨折并桡骨头脱位

E. Fracture of the shaft of the radius桡骨骨干骨折

答案解析：

这是一类被称为 Monteggia 骨折脱位​ 的损伤，其特征是 尺骨近端骨折​ 合并 肱桡关节脱位。这种骨折通常发生在人摔倒时手掌撑地，前臂处于 极度旋前​ 位的情况下。早期识别并进行手术干预对于预防 长期功能障碍、桡神经损伤或肘关节僵硬​ 至关重要。

正确答案：B