It arises from the medial cord of the brachial plexus.

Ulnar nerve interruption:

On the basis of site of compression

Neck:

Ulnar nerve can be interrupt at the neck:

o Thoracic inlet syndrome

o Diseases of the cervical spine

o Brachial plexus abnormalities

Elbow:

Ulnar nerve may be interrupt at the elbow due to fracture, cubital tunnel syndrome, growth plate injuries.

Wrist:

Ulnar nerve can be interrupted at the wrist due to fracture, Guyon’s syndrome etc

Ulnar neuropathy may occur due to infection, tumor, rheumatism, alcoholism, diabetes

Signs and symptoms

· Paresthesia in little finger usually on the palmer side

· Loss of co – ordination in the finger (making fist)

· Muscles wasting

· Claw hand deformity

· Numbness

· Decreased sensation

· Pain

· Tingling sensation

· NCS

· EMG

· Blood tests for other causative agents

· Nerve stretch test

· Biopsy for cancer

· Positioning (splints)

· ROM

PNF