| Symptoms | Dominant | Non Dominant |
|---|---|---|
| Mild incomplete paralysis | ||
| Moderate incomplete paralysis | ||
| Severe incomplete paralysis | ||
| Complete paralysis of all radicular groups. All shoulder and elbow movements are lost or severely affected, adduction, abduction, and rotation of the arm, flexion of elbow, and extension of the wrist is lost or severely affected, and there is substantial loss of use of the hand. |