S89.13 Salter-Harris Type III physeal fracture of lower end of tibia

Name of the Condition

• Salter-Harris Type III physeal fracture of lower end of tibia

Summary

A Salter-Harris Type III physeal fracture of the lower end of the tibia is an injury involving a fracture that passes through the growth plate (physis) and extends into the epiphysis at the distal tibia, typically occurring in children and adolescents. This type of fracture disrupts both the growth plate and the articular surface of the tibia, which is critical for bone development and joint function. The fracture line is vertical, separating a portion of the epiphysis from the rest of the bone.

Causes

Common causes include trauma from falls, sports injuries, or accidents where force is applied to the ankle or lower leg. Direct impact, twisting motions, or rotational stress can disrupt the growth plate and epiphysis, leading to this specific fracture pattern. High-impact events or sudden stress to the tibia may also precipitate this type of injury.

Risk Factors

• Age: More common in children and adolescents due to open growth plates.
• Activity Level: Participation in contact sports or activities with a risk of leg trauma.
• Anatomical Factors: Variations in bone structure or growth plate vulnerability.

Symptoms

• Pain and tenderness around the ankle or distal tibia.
• Swelling and possible bruising near the affected area.
• Difficulty or reluctance to bear weight on the affected leg.
• Visible deformity in severe cases.

Diagnosis

Physical examination to assess pain, swelling, and range of motion. Imaging tests, such as X-rays, are typically used to confirm the fracture pattern, including the extension into the epiphysis. Additional imaging may be required if the fracture is complex or if there is concern for associated injuries.

Treatment Options

Treatment depends on the severity and displacement of the fracture. Non-displaced fractures may be managed with immobilization, such as a cast or brace, to allow healing. Displaced fractures often require surgical intervention to realign the bone and stabilize the joint. Post-treatment, physical therapy may be recommended to restore function and strength.

Prognosis and Follow-Up

Prognosis varies based on the extent of the injury and treatment. Early intervention and proper alignment generally improve outcomes. Follow-up care includes monitoring for growth disturbances or joint issues, with regular imaging to assess healing and development. Long-term follow-up may be necessary to evaluate for potential complications.

Complications

• Growth plate disturbance leading to limb length discrepancy or angular deformity.
• Joint stiffness or arthritis due to articular surface involvement.
• Nonunion or malunion of the fracture.

Lifestyle & Prevention

• Use appropriate protective gear during sports or high-risk activities.
• Ensure proper warm-up and conditioning to reduce injury risk.
• Avoid activities that place excessive stress on the ankle or lower leg.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, inability to bear weight, visible deformity, or signs of infection (e.g., fever, increased swelling, redness). Prompt evaluation is important to prevent complications and ensure proper treatment.

Tips for Medical Coders

Document the fracture type (Salter-Harris Type III) and its location (lower end of tibia) clearly. Include details on displacement, treatment, and any associated injuries to support coding accuracy. Ensure documentation aligns with clinical findings and imaging results.