Treatment of pediatric lateral condylar humerus fractures with closed reduction and percutaneous pinning

Table 1 The Song classification of pediatric lateral condylar humerus fractures

Stage	Degree of displacement	Fracture pattern	Stability
I	≤2 mm	Limited fracture line within the metaphysis	Stable
II	≤2 mm	Fracture line extends to the epiphyseal articular cartilage with a Lateral gap	Indefinable
III	≤2 mm	Gap as wide laterally as medially	Unstable
IV	>2 mm	Without rotation of fragment	Unstable
V	>2 mm	With rotation of fragment	Unstable

Modified from: Song KS, Kang CH, Min BW, et al. Closed reduction and internal fixation of displaced unstable lateral condylar fractures of the humerus in children. J Bone Joint Surg Am. 2008; 90(12):2673–2681

ISSN: 1471-2474