S44.20

Clinical Causes: Traumatic accidents such as falls or vehicle collisions Fractures of the humerus (upper arm bone) Direct blows or penetrating injuries to the upper arm Surgical complications, especially during fracture repair or elbow surgeries Compression from repetitive movements or prolonged pressure Swelling or hematoma resulting from trauma Tumors or cysts compressing the nerve

Key Symptoms: Weakness in wrist and finger extension Difficulty with wrist drop (inability to extend the wrist) Numbness or tingling sensation along the back of the hand and forearm Reduced grip strength Loss of coordination in the affected limb Pain or discomfort in the upper arm Decreased reflexes in the affected arm

Diagnosis Path: Diagnosing an injury to the radial nerve typically involves a physical examination to assess muscle strength, sensory loss, and reflexes. Healthcare providers may perform nerve conduction studies and electromyography (EMG) to evaluate nerve function. Imaging tests such as X-rays, MRI, or ultrasound can help identify underlying causes like fractures, tumors, or compressive lesions. A thorough medical history focusing on recent trauma or surgeries is also essential for accurate diagnosis.

Treatment Protocols: Treatment approaches depend on the severity and cause of the nerve injury. Common options include: - Rest and activity modification to reduce further nerve damage - Physical therapy focused on restoring strength and mobility - Pain management with medications as prescribed by healthcare providers - Surgical intervention in severe cases, such as nerve repair or decompression - Use of braces or splints to support the limb and prevent deformities - Regular monitoring to assess nerve recovery and function The recovery process can vary from weeks to months, depending on the extent of the injury. Early intervention typically leads to better outcomes.