Table 2.

British Medical Research Council classification for sensory, motor, pain and function

Sensory function	Motor function	Pain and function
S0 Insensate in autonomous area	M0 No contraction	F0 Pain, which unable to perform any function
S1 Protective sensation or Weber > 20 mm	M1 Noticeably recovery of muscular contraction	F1 Pain and limited function
S2 Partial recovery of sensation to pain or Weber from 15 to 20 mm	M2 Recovery of muscular contraction against gravity	F2 Limited pain on effort prevents continuing with function
S3 Partial recovery of skin sensation to pain or Weber from 10 to 14 mm	M3 Recovery of muscular contraction against resistance	F3 Sporadic pain, compatible with function
S4 Recovery of skin sensation or Weber from 9 to 5 mm	M4 Recovery of muscular contraction and ability to perform independent movements	F4 No pain and sporadic problems with function
S5 Total recovery of skin sensation or Weber < 5 mm	M5 Total recovery	F5 Normal function

The sensory, motor, pain, and functional evaluation of the patients were completed using the British Medical Research Council classification system (Chanson et al., 1977).