History: 25 year-old male injured his left thumb using a table saw resulting in an amputation of the thumb at the level of the interphalangeal joint. X-rays showed a partial thumb amputation. He came to the emergency department with pain, disability, and bleeding.
Diagnosis: Left thumb amputation at interphalangeal joint
Treatment: First dorsal metacarpal artery island flap
Outcome: He developed full healing and full use of his thumb within 2 months without difficulty.