S65.01 Laceration of ulnar artery at wrist and hand level

Name of the Condition

• Laceration of ulnar artery at wrist and hand level

Summary

A laceration of the ulnar artery at the wrist and hand level involves a cut or tear in the ulnar artery in this anatomical region, which may disrupt blood flow to the hand and fingers. This condition requires prompt evaluation to assess vascular injury and determine appropriate management, as the ulnar artery is critical for perfusion of the distal upper extremity.

Causes

Direct trauma to the wrist or hand, such as lacerations, puncture wounds, or crush injuries. Penetrating injuries from sharp objects like glass, knives, or tools. Blunt force trauma causing vessel compression or disruption. Iatrogenic injury during surgical procedures involving the wrist or hand.

Risk Factors

• Participation in activities with a risk of hand or wrist trauma (e.g., sports, manual labor).
• Use of sharp objects or tools without proper safety precautions.
• Preexisting vascular conditions that may weaken vessel integrity.
• Advanced age, which may be associated with reduced tissue resilience.

Symptoms

• Visible bleeding or hematoma at the injury site.
• Pain, swelling, or tenderness in the wrist or hand.
• Weak or absent pulses in the affected digits.
• Coolness, pallor, or discoloration of the hand or fingers.
• Numbness or tingling in the ulnar nerve distribution (e.g., little finger, ring finger).

Diagnosis

Physical examination to assess for vascular compromise, including pulse palpation and capillary refill. Doppler ultrasound or angiography to evaluate arterial flow and identify the extent of injury. Imaging studies (e.g., X-ray) to rule out associated fractures or soft tissue damage.

Treatment Options

• Direct pressure to control bleeding and stabilize the patient.
• Surgical repair or revascularization to restore arterial flow.
• Anticoagulation or antiplatelet therapy to prevent thrombosis, if indicated.
• Monitoring for complications such as ischemia or compartment syndrome.

Prognosis and Follow-Up

Prognosis depends on the severity of the injury, time to treatment, and presence of comorbidities. Early intervention improves outcomes by preserving tissue viability. Follow-up may include vascular assessments, imaging, or functional evaluations to monitor healing and detect complications.

Complications

• Ischemia or tissue necrosis due to inadequate blood flow.
• Compartment syndrome from increased pressure in the affected area.
• Infection at the injury site.
• Chronic pain or functional impairment.
• Long-term vascular insufficiency or aneurysm formation.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., gloves for manual labor).
• Avoid handling sharp objects carelessly.
• Maintain awareness of hand and wrist positioning in hazardous environments.
• Seek prompt medical care for injuries to minimize complications.

When to Seek Professional Help

• Visible arterial bleeding or uncontrolled hemorrhage.
• Signs of ischemia (e.g., coolness, pallor, numbness) in the hand or fingers.
• Severe pain, swelling, or inability to move the wrist/hand.
• Suspected deep tissue injury or associated fractures.

Tips for Medical Coders

Document the specific location (wrist and hand level) and nature of the injury (laceration) to support accurate coding. Include details about the mechanism of injury, clinical findings, and any interventions performed. Ensure documentation aligns with the anatomical specificity of the code.