Agins H J, Marcus N W
J Pediatr Orthop. 1984 Sep;4(5):620-2.
Salter-Harris type IV fractures of the lateral humeral condyle are well-recognized injuries that have been previously described and classified. The case of an 11-year-old boy who sustained an unusual fracture of the distal humerus with the free fragment composed of 75% of the articular cartilage of the capitellum is presented. The cartilage was attached to only a thin shell of subchondral capitellar bone in continuity with the lateral aspect of the distal humeral physis and metaphysis. Radiographs did not show the magnitude of the articular cartilage component of the fracture, although physical examination was significant for elbow crepitus through a limited range of motion. Open reduction and internal fixation were necessary to achieve a congruous joint and restore anatomic alignment.
肱骨外侧髁的Salter-Harris IV型骨折是一种已被先前描述和分类的公认损伤。本文介绍了一名11岁男孩的病例，他遭受了肱骨远端的罕见骨折，游离骨折块由75%的肱骨小头关节软骨组成。该软骨仅附着于肱骨小头软骨下骨的薄壳上，与肱骨远端骨骺和干骺端的外侧相连。X线片未显示骨折的关节软骨部分的大小，尽管体格检查发现通过有限的活动范围肘部有摩擦感。为了实现关节的一致性和恢复解剖对线，切开复位内固定是必要的。
