S59.029 Salter-Harris Type II physeal fracture of lower end of ulna, unspecified arm

Name of the Condition

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

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, are used to confirm the fracture type and location. The Salter-Harris classification helps determine the fracture pattern and guide treatment.

Treatment Options

Treatment depends on the fracture's severity and displacement. Nonsurgical options include casting or splinting to immobilize the arm. Surgical intervention may be necessary for significantly displaced fractures, involving realignment and fixation with pins or screws. Physical therapy is often recommended during recovery to restore strength and mobility.

Prognosis and Follow-Up

Most Salter-Harris Type II fractures heal well with appropriate treatment, especially when diagnosed early. Regular follow-up appointments monitor healing and alignment. Long-term outcomes are generally favorable, though some cases may require ongoing monitoring for growth disturbances or joint function issues.

Complications

Potential complications include growth plate damage leading to limb length discrepancies or angular deformities. Infection, nerve injury, or stiffness in the wrist or forearm may also occur. Prompt treatment reduces these risks.

Lifestyle & Prevention

Preventive measures include using protective gear during sports and ensuring safe play environments. Strengthening exercises and proper technique in activities can reduce fall risks. Prompt medical attention for arm injuries in children is crucial.

When to Seek Professional Help

Seek immediate medical care if there is severe pain, swelling, or inability to move the wrist or hand after an injury. Signs of infection, such as redness or fever, or new deformity in the arm also warrant urgent evaluation.

Tips for Medical Coders

Use code S59.029 for Salter-Harris Type II physeal fracture of the lower end of the ulna when the arm is unspecified. Document the fracture type, location, and clinical findings to support coding. Ensure the Salter-Harris classification is clearly noted in the medical record for accurate assignment.