Wraparound flap hand dissection. A, Thumb stump exposed and dissected with midlateral incisions. Dorsum of first web space is dissected to locate cephalic vein and radial artery and branches. B, Scheme for attaching iliac bone graft to bone and soft tissue with Kirschner wire to allow nerve and vessel repairs. C, Iliac bone graft with soft tissue in place for “wraparound.” Length of reconstructed thumb allows tip to come within about 1 cm of proximal interphalangeal joint of index finger. SEE TECHNIQUE 63.27.