S62.18 Fracture of trapezoid [smaller multangular]

Name of the Condition

• Fracture of trapezoid [smaller multangular]

Summary

This condition refers to a break or crack in the trapezoid bone, one of the small carpal bones in the wrist. The trapezoid is located on the radial (thumb) side of the wrist and contributes to wrist stability and movement. Fractures in this area typically result from trauma and may vary in severity, with or without displacement of bone fragments.

Causes

Typically caused by direct trauma to the wrist, such as a fall onto an outstretched hand, a blow to the wrist, or a twisting injury. High-impact activities or accidents may also lead to fractures in this specific bone.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or weakened bone structure, especially in older adults.
• Previous wrist injuries or fractures.

Symptoms

• Pain, swelling, and tenderness in the radial side of the wrist.
• Bruising or discoloration around the injury site.
• Limited range of motion or difficulty moving the hand or fingers.
• Visible deformity in severe cases.

Diagnosis

Physical examination to assess pain, swelling, and wrist mobility. Imaging tests, such as X-rays, CT scans, or MRIs, to confirm the fracture and evaluate its extent and alignment.

Treatment Options

• Immobilization: Using a cast, splint, or brace to stabilize the area and promote healing.
• Pain management: Medications like NSAIDs to reduce pain and inflammation.
• Physical therapy: To restore strength and range of motion after immobilization.
• Surgical intervention: May be required for displaced or unstable fractures to realign bone fragments.

Prognosis and Follow-Up

Most fractures of the trapezoid heal with proper immobilization and care, though recovery time varies based on fracture severity. Follow-up imaging may be needed to confirm healing. Long-term outcomes depend on the extent of the injury and adherence to treatment plans.

Complications

• Nonunion or delayed healing of the fracture.
• Arthritis in the wrist joint due to cartilage damage.
• Nerve or tendon injury near the fracture site.
• Chronic pain or stiffness in the wrist.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports).
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid falls by using assistive devices if balance is impaired.
• Strengthen wrist muscles through targeted exercises.

When to Seek Professional Help

Seek immediate medical attention if you experience severe wrist pain, swelling, deformity, or inability to move the hand after an injury. Prompt evaluation is important to prevent complications.

Tips for Medical Coders

Document the specific bone involved (trapezoid) and any details about fracture type (e.g., displaced, nondisplaced) or treatment provided. Ensure the code S62.18 is used when the trapezoid bone is explicitly identified as fractured. Include clinical notes supporting the diagnosis for accurate coding.