Pollicization can be best described as:
Pollicization is a plastic surgery technique in which a thumb is reconstructed from an existing finger, usually index finger. Ref: Campbell's Operative Ohopaedics, 11th Edition, Pages 660, 662, 664; Atlas of Hand Surgery By Sigurd Pechlaner, Chapter 3, Microsurgery, Page 98
Toe to thumb transfer
Thumb reconstruction
Finger shoening
Amputation of thumb