the fractures were epiphyseal ( salter-harris type iii , n = 4 ) , ligament avulsions from metacarpal head ( n = 17 ) , osteochondral ( n = 8 ) , oblique ( sagittal , n = 22 ) , vertical ( coronal , n = 4 ) , horizontal ( transverse , n = 4 ) , comminuted ( n = 31 ) , boxer 's fractures with extension into the joint ( n = 3 ) , loss of substance ( n = 6 ) , and occult compression with avascular necrosis ( n = 4 ) .
C0016658
fractures
C0476171
comminuted