S79.102 Unspecified physeal fracture of lower end of left femur

Name of the Condition

Unspecified physeal fracture of lower end of left femur

Summary

An unspecified physeal fracture of the lower end of the left femur is an injury involving the growth plate (physis) at the distal femur, typically occurring in children or adolescents. This fracture disrupts the physis, which is the area of developing bone responsible for longitudinal growth. The term "unspecified" indicates that the exact type or location of the fracture within the physis is not detailed in the documentation.

Causes

Physeal fractures of the lower femur are usually caused by acute trauma, such as falls, sports-related injuries, or direct blows to the knee or thigh. The force transmitted across the growth plate can cause it to separate from the adjacent bone. In some cases, repetitive stress or overuse may contribute to the injury, particularly in active children or adolescents.

Risk Factors

• Age: Most common in children and adolescents, as growth plates are weaker than surrounding bone.
• Activity level: Participation in high-impact sports or activities with a risk of falls (e.g., gymnastics, soccer, skateboarding).
• Growth spurts: Periods of rapid growth may temporarily weaken the physis, increasing susceptibility to injury.
• Anatomical factors: Variations in bone structure or prior injuries may predispose individuals to physeal fractures.

Symptoms

• Pain and swelling around the knee or thigh.
• Limited range of motion or difficulty bearing weight.
• Visible deformity or abnormal positioning of the leg.
• Tenderness to touch at the fracture site.

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 and evaluate the growth plate. In some cases, additional imaging (e.g., MRI) may be required to assess the extent of the injury, especially if the fracture is not clearly visible on X-rays.

Treatment Options

Treatment depends on the severity and displacement of the fracture. Nonsurgical options include immobilization with a cast or brace and activity restriction. Surgical intervention may be necessary for displaced fractures to realign the bone and stabilize the growth plate. Physical therapy is often recommended during recovery to restore strength and mobility.

Prognosis and Follow-Up

Prognosis is generally favorable with appropriate treatment, though outcomes depend on the fracture type and alignment. Regular follow-up appointments are important to monitor healing and assess for potential growth disturbances. Long-term monitoring may be needed to ensure proper bone development.

Complications

Potential complications include growth plate damage leading to limb length discrepancies or angular deformities, joint stiffness, or chronic pain. Incomplete healing or malunion may require additional treatment.

Lifestyle & Prevention

• Encourage protective gear during high-risk activities (e.g., helmets, pads).
• Promote proper warm-up and technique in sports to reduce injury risk.
• Ensure adequate calcium and vitamin D intake to support bone health.
• Avoid overuse or repetitive stress on the knee and thigh in growing children.

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, redness, drainage). Persistent pain or swelling after initial treatment also warrants evaluation.

Tips for Medical Coders

Document the specific side (left femur) and the nature of the fracture (unspecified physeal) to ensure accurate coding. Include details about the encounter type (e.g., initial, subsequent) and fracture status (e.g., open, closed) if applicable. Verify that the documentation supports the use of S79.102 and aligns with clinical findings.