classification
Last reviewed 01/2018
One commonly used system for classifying radial club hand was described by Bayne and Klug in 1987:
- type 1: short distal radius; radius shorter than ulna but normal form
- type 2: hypoplastic radius; hypoplastic radius but proximal and distal epiphyses are present
- type 3: partial absence of radius; distal part of the radius is absent
- type 4: total absence of radius
Type 4 is the most common, followed by type 1 and then type 3.
Ref: Bayne LG, Klug MS. J Hand Surg (Am). 1987; 12(2): 169-179.