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Table 2 Modified British Medical Research Council (BMRC) grading of sensorimotor recovery, and motor recovery on the quality of outcome after brachial plexus repair [16].

From: Surgical outcomes of the brachial plexus lesions caused by gunshot wounds in adults

Motor recovery
Poor M0 No contraction
  M1 Return of perceptible contraction in the proximal muscles
Fair M2 Return of perceptible contraction in both proximal and distal muscles
  M3 Return of perceptible contraction in both proximal and distal muscles of such of degree that all important muscles are sufficiently powerful to act against resistance
Good M4 Return of function as in stage 3 with the addition that all synergic and independent movements are possible
  M5 Complete recovery
Sensory recovery
Poor S0 No sensation
  S1 Deep pain re-established
Fair S2 Some response to touch and pin, with over-response
  S3 Good response to touch and pin, without over-response
Good S4 Location and some tactile discrimination
  S5 Complete recovery