Before surgery

After surgery

Ulnar motoric

Distal onset latency

4.1 ms

3.4 ms

Amplitude

2.1 mV

3.9 mV

Conduction velocity

47 m/s

39 m/s

Ulnar sensory

Distal onset latency

No response

4.8 ms

Amplitude

No response

2.6 μV

Conduction velocity

No response

29 m/s