Chessare J W, Rogers L F, White H, Tachdjian M O
AJR Am J Roentgenol. 1977 Jul;129(1):49-55. doi: 10.2214/ajr.129.1.49.
The complex nature of the ossification centers makes elbow injuries in a child or adolescent difficult to evaluate. The medial epicondylar ossification center is involved in a significant proportion. Injuries vary from simple avulsions to wide displacement with entrapment in the elbow. When entrapment occurs, it may be mistaken for the trochlear ossification center and the true nature of the injury overlooked. Radiographic findings are presented. The anteroposterior view was found to be diagnostic in minimal or marked avulsions of the medial epicondyle because of the characteristic inferior displacement. The anteroposterior view may not always be diagnostic in cases of entrapment of the medial epicondyle; the lateral view is usually diagnostic. In elbow dislocation, the presence and position of the medial epicondyle must be ascertained. Comparison and oblique views are often of value.
骨化中心的复杂性质使得儿童或青少年的肘部损伤难以评估。内侧髁上骨化中心受累比例较高。损伤范围从简单的撕脱到伴有肘部嵌顿的广泛移位。当发生嵌顿时，可能会被误认为是滑车骨化中心，从而忽略损伤的真实性质。本文展示了影像学表现。由于特征性的向下移位，前后位片在内侧髁轻微或明显撕脱时具有诊断价值。在内侧髁嵌顿的病例中，前后位片不一定总能作出诊断；侧位片通常具有诊断价值。在肘关节脱位时，必须确定内侧髁的存在及位置。比较位片和斜位片通常很有价值。
