Pollicization can be best described as -

severely mutilated hand should be dealt with by a hand expe. If all the fingers have been lost but the thumb is present, a new finger can sometimes be constructed with coical bone, covered by a tubular f lap of skin; an alternative is a neurovascular microsurgical transfer from the second toe. If the thumb has been lost, the options include POLLICIZATION (rotating a finger to oppose the other fingers), second toe transfer and osteoplastic reconstruction (a coical bone graft surrounded by a skin flap). REF:Apley&;s system of ohopaedics- 9th edn - pg no 803.