S54.02

Clinical Causes: Trauma or direct impact to the forearm, such as falls, blows, or accidents Repetitive strain injuries from activities involving repetitive wrist motion, like typing or using tools Fractures or dislocations of the elbow or forearm bones that compress or damage the nerve Elbow injuries that impact the nerve’s pathway, including ulnar nerve subluxation Prolonged pressure on the medial aspect of the forearm, such as leaning on the elbow for extended periods Tumors or cysts that develop near the nerve, leading to compression Previous surgeries or medical procedures that inadvertently injure the nerve

Key Symptoms: Numbness or tingling sensation in the ring finger and little finger Weakness in hand muscles, especially in the powers involved in gripping and finger coordination Loss of fine motor skills in the affected hand Paleness or coolness in the fingers due to impaired blood flow Muscle wasting in the hypothenar eminence (the fleshy area of the palm at the base of the little finger) Possible pain or discomfort along the nerve pathway in the forearm

Diagnosis Path: Diagnosis involves a detailed physical examination to assess muscle strength, sensation, and reflexes. Healthcare providers may utilize nerve conduction studies and electromyography (EMG) to evaluate nerve function and pinpoint the injury site. Imaging tests, such as MRI or ultrasound, can be helpful to visualize nerve compression, swelling, or associated structural abnormalities. A comprehensive assessment ensures an accurate diagnosis and guides appropriate treatment planning.

Treatment Protocols: Management of ulnar nerve injury at the forearm level includes various approaches based on severity. Non-surgical options often involve activity modification, physical therapy, and splinting to reduce pressure on the nerve and improve function. Medications may be prescribed to manage pain and inflammation. In cases where conservative measures are insufficient, surgical procedures such as nerve decompression or repair might be considered to relieve pressure and restore nerve integrity. Rehabilitation post-treatment focuses on strengthening and regaining dexterity and sensation.