S55.091

Clinical Causes: Blunt trauma from falling or impact during sports or accidents Sharp injuries from cuts, lacerations, or stab wounds Crushing injuries from machinery or heavy objects Sports-related injuries, such as fractures or dislocations affecting the forearm Surgical or medical procedures that inadvertently damage the ulnar artery

Key Symptoms: Pain, swelling, or tenderness in the forearm Bleeding or hematoma at the injury site Discoloration or pallor of the hand and fingers Coldness or decreased temperature in the hand or fingers Numbness, tingling, or weakness in the hand or fingers Reduced or no pulse detectable in the affected area Difficulty moving fingers or hand due to compromised blood flow

Diagnosis Path: Diagnosing an injury to the ulnar artery involves a combination of clinical evaluation and diagnostic tests. Healthcare providers typically perform a physical examination to assess swelling, skin color, pulse presence, and sensory function. Imaging studies such as duplex ultrasonography can visualize blood flow and detect blood vessel damage. Angiography may be utilized in complex cases to precisely locate the injury. Additionally, other imaging modalities like MRI or CT scans might be employed to evaluate associated injuries in the forearm.

Treatment Protocols: Management of ulnar artery injuries depends on the severity and extent of the damage. Common treatment approaches include: - **Monitoring and conservative care** for minor injuries, involving rest, elevation, and pressure application to control bleeding. - **Surgical intervention** to repair or ligate the damaged artery, especially in cases of significant hemorrhage or compromised blood flow. - **Vascular repair or bypass procedures** to restore adequate circulation. - **Medication management** with antibiotics to prevent infection and pain relievers for discomfort. - **Rehabilitation**, including physical therapy, may be necessary to regain full function and strength of the hand and forearm. Prompt medical attention is crucial to prevent complications like tissue death, nerve damage, or chronic disability.