  Needle EMG was performed on the left arm, right first dorsal interosseous muscle, and bilateral cervical paraspinal muscles.  It revealed spontaneous activity in the left abductor pollicis brevis muscle.  There is increased insertional activity in the right first dorsal interosseous muscle.  Both interosseous muscles showed signs of reinnervation.  Left extensor digitorum communis muscle showed evidence of reduced recruitment.  Cervical paraspinal muscles were normal.