New Locked-Wire-Type External Fixator (the Ichi-Fixator) for Fourth and Fifth Carpometacarpal Joint Dislocation

Figure 3

A 1.5 mm fixator pin was inserted from the base of the fifth metacarpal to the third metacarpal transversally (a). Another 1.5 mm fixator pin was inserted from the ulnar base of the fifth metacarpal to the hamate bone obliquely (b). The external ends of the two pins were bent so that they became parallel. The parallel ends of the two pins were then inserted in a metal clamp from the opposite sides (c).

(a)

(b)

(c)