S72.472G Torus fracture of lower end of left femur, subsequent encounter for fracture with delayed healing

Name of the Condition

• Torus fracture of lower end of left femur, subsequent encounter for fracture with delayed healing

Summary

This condition involves a torus (buckle) fracture at the distal (lower) end of the left femur, the thigh bone, near the knee joint, with delayed healing during a subsequent encounter. Torus fractures are incomplete breaks that result in a buckling of the bone cortex, typically occurring in children due to the flexibility of their bones. The fracture may involve the metaphyseal region, which is the area between the growth plate and the shaft of the bone, and can affect the stability of the knee joint. Delayed healing indicates the fracture has not progressed as expected during the healing process.

Causes

Direct force or axial loading to the femur, such as a fall onto the knee or a blow to the thigh. Common in children due to their developing bone structure, which is more pliable and prone to buckling rather than complete fracture. Delayed healing may result from factors like inadequate immobilization, poor blood supply to the fracture site, or underlying medical conditions affecting bone repair.

Risk Factors

• Pediatric age group, particularly during periods of rapid growth.
• Participation in high-impact activities or sports.
• Prior history of bone injuries or developmental abnormalities.
• Conditions that impair bone healing, such as nutritional deficiencies or chronic diseases.

Symptoms

• Localized pain and tenderness at the fracture site, which may persist longer than typical.
• Swelling or mild deformity around the knee that does not resolve as expected.
• Limited range of motion in the knee joint, potentially worsening over time.
• Possible difficulty bearing weight on the affected leg, indicating ongoing instability.

Diagnosis

Physical examination to assess pain, swelling, and limb alignment, with attention to signs of delayed healing. Imaging studies, such as X-rays, to confirm the torus fracture pattern and evaluate healing progress. Additional tests, like CT scans or bone scans, may be used to assess bone union and rule out complications.

Treatment Options

Conservative management, including continued immobilization with a cast or brace to support healing. Pain management with medications or physical therapy to maintain mobility. Surgical intervention may be considered if the fracture shows no improvement or if instability persists. Regular follow-up imaging to monitor healing.

Prognosis and Follow-Up

Prognosis depends on the extent of the fracture and underlying factors affecting healing. Most torus fractures heal with proper care, but delayed healing may extend recovery time. Follow-up appointments are necessary to assess progress and adjust treatment. Long-term monitoring may be required to ensure full functional recovery.

Complications

Prolonged pain or discomfort if healing is significantly delayed. Risk of malunion or nonunion, where the bone heals in an abnormal position or not at all. Potential for joint stiffness or reduced mobility due to prolonged immobilization. Rarely, infection or nerve damage at the fracture site.

Lifestyle & Prevention

Avoid high-impact activities until the fracture is fully healed to prevent re-injury. Maintain a balanced diet rich in calcium and vitamin D to support bone health. Use protective gear during sports or activities with fall risks. Follow medical advice for weight-bearing restrictions and rehabilitation exercises.

When to Seek Professional Help

Persistent or worsening pain, swelling, or deformity at the fracture site. Inability to bear weight on the affected leg after initial immobilization. Signs of infection, such as redness, warmth, or fever. Delayed healing concerns, as indicated by lack of progress on follow-up imaging.

Tips for Medical Coders

Document the laterality (left femur), the torus fracture type, and the reason for the subsequent encounter (delayed healing). Ensure clinical notes specify the fracture’s location and healing status to support accurate coding. Include details on treatment provided and any imaging results that confirm delayed healing.