S72.464 Nondisplaced supracondylar fracture with intracondylar extension of lower end of right femur

Name of the Condition

• Nondisplaced supracondylar fracture with intracondylar extension of lower end of right femur

Summary

This condition involves a fracture at the distal (lower) end of the right femur, specifically extending from the supracondylar region (above the condyles) into the intracondylar area (within the condyles). The fracture disrupts the structural integrity of the knee joint, potentially affecting stability and function. The pattern involves both the metaphyseal region above the condyles and the articular surface of the condyles themselves, with the bone fragments remaining aligned.

Causes

High-impact trauma, such as falls, motor vehicle accidents, or direct force to the knee. Sports injuries involving sudden twisting or axial loading. Low-energy trauma in individuals with weakened bone density may also result in this fracture pattern.

Risk Factors

• Advanced age and associated bone density loss.
• Osteoporosis or other metabolic bone disorders.
• Participation in high-risk activities or contact sports.
• Prior history of knee or femur injuries.
• Conditions affecting bone strength, such as chronic steroid use.

Symptoms

• Severe knee pain and swelling.
• Bruising or visible deformity around the knee.
• Inability to bear weight or move the knee.
• Possible numbness or tingling if nerves are compressed.
• Instability or abnormal joint movement.

Diagnosis

Physical examination to assess pain, swelling, and deformity. Imaging studies, typically X-rays, to confirm the fracture pattern and alignment. Advanced imaging, such as CT or MRI, may be used to evaluate intracondylar involvement or joint surface integrity.

Treatment Options

Conservative management with immobilization (e.g., casting or bracing) for stable, nondisplaced fractures. Surgical intervention may be required if displacement occurs or if joint stability is compromised. Physical therapy to restore mobility and strength after healing.

Prognosis and Follow-Up

Prognosis is generally favorable with proper alignment and treatment, though recovery may take several months. Follow-up imaging and clinical assessments are necessary to monitor healing and joint function. Long-term outcomes depend on fracture severity and adherence to rehabilitation.

Complications

Potential for delayed union or nonunion if healing is impaired. Risk of post-traumatic arthritis due to joint surface involvement. Nerve or vascular injury, though less common in nondisplaced fractures. Chronic pain or stiffness in the knee.

Lifestyle & Prevention

Avoid high-impact activities until cleared by a healthcare provider. Strengthen surrounding muscles (e.g., quadriceps, hamstrings) to support joint stability. Use protective gear during sports or high-risk activities. Maintain bone health through adequate nutrition and exercise.

When to Seek Professional Help

Seek immediate care for severe pain, inability to bear weight, or visible deformity. Consult a healthcare provider if symptoms worsen or do not improve with initial treatment. Follow up for persistent swelling, numbness, or instability.

Tips for Medical Coders

Document the fracture location (right femur), pattern (supracondylar with intracondylar extension), and displacement status (nondisplaced) to support accurate coding. Include details on imaging findings, treatment approach, and any complications to ensure comprehensive coding. Verify laterality and fracture specifics to align with ICD-10-CM guidelines.