Fabião Luís, Macedo-Campos Vítor, Ferreira de Castro Rita, Lopes Miguel, Cadavez Duarte Nuno
Orthopedics and Traumatology, Unidade Local de Saúde de Barcelos/Esposende, Barcelos, PRT.
Cureus. 2025 Feb 26;17(2):e79694. doi: 10.7759/cureus.79694. eCollection 2025 Feb.
The annular ligament of the elbow is essential for its stability, playing a key role in both the proximal radioulnar and humeroradial joints, as well as supporting surrounding muscles and ligaments. Radial head dislocation is rare in children, and when isolated they can be challenging to reduce and may require surgical intervention. An 11-year-old boy presented with an anteromedial dislocation of the radial head after a fall. Initial, closed reduction was attempted and failed, requiring surgical intervention, where we found a rupture of the annular ligament and interposition, which was repaired after reduction. At one year of follow-up, the patient achieved full range of motion and stability of the elbow. Radial head dislocation is rare in children and even more rare without associated ulna fractures. Evaluating radiographs for plastic deformities of the ulna is crucial, as these injuries are often overlooked. Failed closed reductions may rise suspicion of interposed structures. Isolated post-traumatic radial head dislocation is a rare occurrence requiring prompt recognition and management. While most cases are treated with closed reduction, those that are not reducible or suspected soft tissue interposition may require open reduction. Thorough clinical evaluation, both vascular and neurologic and preoperative imaging are essential. Early intervention and meticulous surgical techniques can lead to favorable functional outcomes.
肘关节环状韧带对其稳定性至关重要，在近端桡尺关节和肱桡关节中均起关键作用，同时还支撑周围的肌肉和韧带。桡骨头脱位在儿童中较为罕见，若为单纯脱位，复位可能具有挑战性，可能需要手术干预。一名11岁男孩在跌倒后出现桡骨头前内侧脱位。起初尝试了闭合复位但失败了，需要进行手术干预，术中我们发现环状韧带断裂并存在嵌入，复位后进行了修复。随访一年时，患者肘关节活动范围恢复正常且稳定。桡骨头脱位在儿童中罕见，无尺骨骨折的情况则更为罕见。评估X线片以查看尺骨是否存在塑性变形至关重要，因为这些损伤常被忽视。闭合复位失败可能提示存在嵌入结构。单纯创伤后桡骨头脱位是一种罕见情况，需要及时识别和处理。虽然大多数病例采用闭合复位治疗，但那些无法复位或怀疑有软组织嵌入的病例可能需要切开复位。全面的临床评估，包括血管和神经方面，以及术前影像学检查至关重要。早期干预和精细的手术技术可带来良好的功能结果。
