Peripheral nerve injury is a major clinical and public health challenge. Although a common and increasingly prevalent wartime condition (1), injury to peripheral nerves, plexuses, and roots is present in 5% of patients seen in civilian trauma centers (2). In one study, almost half of peripheral nerve injuries at trauma centers were due to motor vehicle accidents and about half required surgery (3). Peripheral nerve injuries can substantially impact quality of life through loss of function and increased risk of secondary disabilities from falls, fractures, and other injuries (2).