S62.121 Displaced fracture of lunate [semilunar], right wrist

Name of the Condition

• Displaced fracture of lunate [semilunar], right wrist

Summary

A displaced fracture of the lunate in the right wrist involves a break where the bone fragments are no longer in their normal anatomical position. This type of fracture typically results from trauma to the wrist and requires evaluation to determine the extent of displacement and appropriate management.

Causes

A displaced lunate fracture is commonly caused by falls onto an outstretched hand, direct trauma to the wrist, or high-impact injuries that transmit force through the wrist joint. These injuries may occur during accidents, sports, or activities involving sudden force to the wrist area.

Risk Factors

• Participation in contact sports or activities with a high risk of falls
• Osteoporosis or weakened bone structure
• Previous wrist injuries or fractures
• High-impact occupational activities

Symptoms

• Severe pain or tenderness in the right wrist
• Swelling or bruising around the wrist
• Limited range of motion in the wrist or hand
• Visible deformity or abnormal positioning of the wrist
• Difficulty gripping or moving the hand

Diagnosis

Physical examination to assess pain, swelling, and wrist mobility. Imaging tests, such as X-rays, CT scans, or MRI, to confirm the fracture and evaluate the degree of displacement. Additional assessments may include nerve function checks to rule out associated injuries.

Treatment Options

• Reduction and immobilization: Manual realignment of the bone fragments followed by casting or splinting to stabilize the wrist.
• Surgical intervention: Internal fixation with pins, screws, or plates for severe displacement or unstable fractures.
• Pain management: Medications like NSAIDs to reduce pain and inflammation.
• Physical therapy: To restore strength and mobility after initial healing.

Prognosis and Follow-Up

Prognosis depends on the severity of displacement, treatment effectiveness, and adherence to rehabilitation. Full recovery is possible with proper management, but some patients may experience long-term stiffness or reduced range of motion. Follow-up appointments are necessary to monitor healing and adjust treatment as needed.

Complications

• Chronic wrist pain or arthritis
• Nerve or tendon damage
• Nonunion or malunion of the fracture
• Reduced wrist function or grip strength
• Post-traumatic stiffness

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through proper nutrition and exercise.
• Avoid falls by improving balance and using assistive devices if needed.
• Seek prompt medical attention for wrist injuries to prevent complications.

When to Seek Professional Help

• Severe or worsening pain, swelling, or deformity.
• Inability to move the wrist or hand.
• Numbness, tingling, or weakness in the hand.
• Signs of infection, such as redness, warmth, or fever.

Tips for Medical Coders

Document the specific bone (lunate), side (right), and displacement status clearly. Include details of the injury mechanism, imaging findings, and treatment approach to support code assignment. Ensure documentation aligns with clinical guidelines for fracture classification and management.