7-dr-rujutafig3a
Figure 3 a: Hand forearm angle .the angle between the line D : which is the line connecting the midpoint of the transverse axis of the ulna with the midpoint of the transverse axis of the 3rd metacarpal base which has to be parallel to the long axis of the distal ulna. The angle B is then formed between the long axis of the 3 rd metacarpal and the perpendicular joining the midpoint where the line D ends.