R Lim1, S Sreedharan2. 1. Hand and Microsurgery Section, Department of Orthopaedic Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433 Singapore ; Department of Hand Surgery, Singapore General Hospital, Outram Road, Singapore, 169608 Singapore. 2. Hand and Microsurgery Section, Department of Orthopaedic Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, Singapore, 308433 Singapore.