S99.122 Salter-Harris Type II physeal fracture of left metatarsal

Name of the Condition

• Salter-Harris Type II physeal fracture of left metatarsal

Summary

This condition involves a Salter-Harris Type II fracture affecting the growth plate (physis) of the left metatarsal bone. Type II fractures are characterized by a separation of the growth plate with a fracture extending into the metaphysis. These injuries typically occur in children or adolescents, where the growth plate is still active, and require careful assessment to ensure proper healing and prevent long-term complications.

Causes

Direct trauma or injury to the foot, such as falls, sports-related impacts, or accidents, can disrupt the growth plate. Sudden force applied to the metatarsals, including twisting or direct blows, may lead to this type of fracture. The injury often results from high-energy events that stress the developing bone structure.

Risk Factors

• Age: Children and adolescents, as their growth plates are still developing and more susceptible to injury.
• High-impact activities: Participation in sports like running, jumping, or contact sports.
• Previous injuries: Prior damage to the metatarsals or surrounding structures may increase vulnerability.

Symptoms

• Pain and swelling localized to the metatarsal area.
• Difficulty bearing weight or walking on the affected foot.
• Limited range of motion in the toes or midfoot.
• Visible bruising or discoloration.

Diagnosis

Diagnosis typically involves a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays, are used to confirm the fracture type and location. The Salter-Harris classification system helps identify the specific fracture pattern, which guides treatment decisions.

Treatment Options

Treatment may include immobilization with a cast or splint to allow healing, pain management, and activity modification. In some cases, surgical intervention may be necessary to realign the bone fragments. Follow-up care ensures proper healing and monitors for complications.

Prognosis and Follow-Up

Prognosis is generally favorable with appropriate treatment, though long-term monitoring may be needed to assess growth plate function. Follow-up appointments typically involve imaging and physical exams to track healing and address any concerns.

Complications

Potential complications include growth plate damage leading to limb length discrepancies or angular deformities, delayed union, or nonunion of the fracture. Infection or nerve injury may also occur, particularly with surgical intervention.

Lifestyle & Prevention

Preventive measures include wearing appropriate footwear during activities, using protective gear in sports, and avoiding high-risk maneuvers. Strengthening exercises and proper warm-ups may reduce injury risk.

When to Seek Professional Help

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

Tips for Medical Coders

Document the specific metatarsal involved (left) and confirm the Salter-Harris Type II classification. Ensure the encounter type and fracture status (e.g., closed) are clearly recorded to support accurate coding.