Following fingertip amputation, Hook nail deformity can result from loss of adequate supporting length of distal phalanx.
This reduces the radius of curvature of the nail, and in extreme cases, the nail plate curves tightly over the end of the fingertip.
One type of reconstruction involves lengthening the tip with a bone graft and skin flap, sometimes referred to as the "antenna procedure"
because of the appearance of temporary pins protruding from the fingertip. One problem with this approach is that the distal bone graft
may resorb slowly over the years that follow.|
The small fingertip has a squared off contour and hook nail deformity following a traumatic amputation.
Reconstruction was performed using a volar advancement flap and bone graft: