[Musculosceletal reconstruction in bilateral forearm transplantation].

Area of Science:

• Orthopedic Surgery
• Reconstructive Surgery
• Transplantation Medicine

Background:

• Investigated motor function improvement in a patient after bilateral forearm allotransplantation following electric shock injury and amputation.
• A 41-year-old male underwent bilateral forearm transplantation in 2003, with muscle reconstruction using donor units and internal fixation without bone grafting.

Observation:

• Grafts remained viable for over 6 years, with initial complications including rejection, infection, and metabolic disorders successfully managed.
• Bone healing was normal, and despite challenges like reinnervation distance and rejection episodes, functional recovery was achieved.

Findings:

• Total range of motion (TRM) of the upper extremity improved significantly from 32.7% to 74.6% post-surgery.
• Wrist motion/forearm rotation increased by 8.7%, finger motion by 33%, and 2% respectively, with moderate muscle power (M4/5).

Implications:

• Bilateral forearm transplantation can restore significant upper extremity function, particularly range of motion.
• Improved range of motion, unassisted task performance, and enhanced body integrity were key benefits reported by the patient.