In general, arthroplasty in the hand is divided into three categories, namely fusion, soft tissue arthroplasty and interpositional arthroplasy, each of that having some problems and limited indications. Frequently orthopedic surgeons fall into difficulties in deciding the treatment for the ankylosed joints of the hand in young adults. We now report a case of living joint transplantation from the M-P joint of 2nd toe for post-traumatic ankylosis of that of index finger. The follow-up shows improved range of motion and good pain relief.