S59.02 Salter-Harris Type II physeal fracture of lower end of ulna

Name of the Condition

• Salter-Harris Type II physeal fracture of lower end of ulna

Summary

This condition involves a fracture of the growth plate (physeal) at the lower end of the ulna bone, classified as Salter-Harris Type II. It typically affects children and adolescents, where the fracture extends through the physis (growth plate) and into the metaphysis (the wider part of the bone adjacent to the growth plate). The injury may result from trauma to the forearm, particularly near the wrist joint.

Causes

Salter-Harris Type II physeal fractures often occur due to direct impact, such as a fall onto an outstretched hand, or from forceful twisting of the forearm. These injuries are common in activities involving sudden stops or collisions, where the growth plate is weaker than surrounding bone.

Risk Factors

• Children and adolescents are at higher risk due to the presence of growth plates.
• Participation in contact sports or activities with a high likelihood of falls increases risk.
• Certain genetic or metabolic conditions affecting bone development may also elevate susceptibility.

Symptoms

• Pain and swelling near the wrist or forearm.
• Difficulty moving the wrist or hand.
• Tenderness to touch at the fracture site.
• Possible bruising around the affected area.

Diagnosis

Physical examination by a healthcare professional to assess pain, swelling, and range of motion. Imaging tests, especially X-rays, to visualize the fracture and determine its extent. Additional imaging (e.g., MRI) may be used if the fracture is not clearly visible on X-rays.

Treatment Options

• Immobilization using a cast or splint to stabilize the fracture.
• Pain management with over-the-counter or prescription medications.
• Surgical intervention may be required for severe or displaced fractures.
• Physical therapy to restore strength and mobility after healing.

Prognosis and Follow-Up

Most Salter-Harris Type II fractures heal well with proper treatment, though the risk of growth disturbance is higher than with Type I fractures. Follow-up appointments are necessary to monitor healing and assess for complications. Long-term outcomes depend on the severity of the injury and adherence to treatment plans.

Complications

• Growth plate damage leading to limb length discrepancy or angular deformity.
• Nonunion or delayed union of the fracture.
• Infection (if surgical intervention is required).
• Nerve or blood vessel injury near the fracture site.

Lifestyle & Prevention

• Use protective gear during sports or activities with a high risk of falls.
• Ensure proper supervision of children during play to reduce accident risk.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, visible deformity, inability to move the wrist or hand, or signs of nerve or blood vessel injury (e.g., numbness, coldness, or discoloration).

Tips for Medical Coders

Document the specific Salter-Harris Type II classification and confirm the fracture involves the lower end of the ulna. Ensure clinical documentation supports the type of physeal fracture to justify code assignment.