| Symptoms | Dominant | Non Dominant |
|---|---|---|
| Mild incomplete paralysis. | ||
| Moderate incomplete paralysis. | ||
| Severe incomplete paralysis. | ||
| Complete paralysis; drop of hand and fingers, wrist and fingers are perpetually flexed, the thumb adducted falls within the line of the outer border of the index finger, cannot extend the hand at the wrist, cannot extend the base of the fingers, extend thumb, or make lateral movements of the wrist, supination of the hand and extension and flexion of the elbow is weakened, hand grip is seriously impaired, possible total paralysis of the triceps. |