| Panda AK et al. [8] | Saifudheen K et al. [9] | McMillan HJ et al. [10] | Narry Muhn et al. [11] | Ilya Laufer et al. (Case 2) [12] | Patient described in this case report | |||
---|---|---|---|---|---|---|---|---|---|
Case 1 | Case 2 | ||||||||
Age at presentation (years) | 16 | 14 | 5 | 4.5 | 5.5 | 9 | 6 | ||
Main complaint | Rapidly progressive right sided foot drop for 2Â months | Rapidly progressive bilateral foot drop for 1Â week | Left foot drop for 2Â months | Abrupt onset right foot drop | Rapidly progressive left foot drop | Right foot weakness for 1Â month | Rapidly progressive left foot drop for 1Â month | ||
Muscle power (Affected limb) Out of 5 | Hip | Flexors | 5 | N/C | 5 | N/C | Normal | 5 | 5 |
Extensors | 5 | N/C | 5 | N/C | Normal | 5 | 5 | ||
Ankle | Dorsi-flexion | 0 | N/C | 0 | 1 | Weak | 5 | 0 | |
Plantar flexion | 3 | N/C | 4+ | N/C | Normal | 2 | 3 | ||
Reflex | Knee | Diminished | Diminished | Normal | Absent | Absent | Absent | Diminished | |
Ankle | Absent | Diminished | Absent | Absent | Diminished | Diminished | Absent | ||
Nerve conduction | Common fibular nerve | Latency | 3Â mV | Normal | 4.2Â mV | 5.4Â mV | Normal | N/C | 2.8Â mV |
Amplitude | 2.6Â ms | Low | 1.5Â ms | 2.6Â ms | low | N/C | 3.3Â ms | ||
Velocity | 43.1Â m/s | Normal | 44Â m/s | 45Â m/s | Normal | N/C | 59Â m/s | ||
Tibial nerve | Normal | Normal | Normal | Normal | Normal | N/C | Normal | ||
Electromyography | Fibrillation waves in right TA, PL, MG, GM | Fibrillation waves in TA, MG | Fibrillation waves in right TA, PL, MG, GM | Active denervation of TA | Fibrillation waves in TA, TP, MG | N/C | Fibrillation waves in left TA. Left MG was Normal |