Table 1.

Clinical data of five patients

Patient no./Age, y/SexClinical signsDominant affected side of the fingersMuscle strength:MRC grade
FF = finger flexion; FE = finger extension; ABD = abduction; ADD = adduction; I = thumb; V = little finger.
1/64/ML hand weakness; no sensory disturbanceRadial > ulnarFF:0(I)∼4(V); FE:1(I)∼4(V); ABD and ADD:0(I)∼4(V)
2/87/FR arm weakness; R arm sensory disturbanceRadial ≒ ulnarFF:3; FE:3; ABD and ADD:3
3/70/MR arm weakness; no sensory disturbanceRadial < ulnarFF:4+(I)∼4(V); FE:4+(I)∼4(V); ABD and ADD:4(I)∼3(V)
4/52/ML hand weakness; no sensory disturbanceRadial < ulnarFF:4(I)∼3(V); FE:4(I)∼2(V); ABD and ADD:4(I)∼2(V)
5/72/MR hand weakness; no sensory disturbanceRadial > ulnarFF:4(I)∼4+(V); FE:3(I)∼4(V); ABD and ADD:2(I)∼3(V)