S72.464A Nondisplaced supracondylar fracture with intracondylar extension of lower end of right femur, initial encounter for closed fracture

Name of the Condition

• Nondisplaced supracondylar fracture with intracondylar extension of lower end of right femur, initial encounter for closed fracture

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. The term "nondisplaced" indicates that the bone fragments remain aligned, which may influence treatment and healing outcomes.

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 rule out displacement. Additional imaging, such as CT or MRI, may be used to evaluate intracondylar involvement or soft tissue damage.

Treatment Options

Conservative management with immobilization (e.g., casting or bracing) for nondisplaced fractures. Surgical intervention may be considered if displacement occurs or if the fracture is unstable. Physical therapy to restore mobility and strength after healing.

Prognosis and Follow-Up

Prognosis is generally favorable for nondisplaced fractures with proper immobilization and adherence to treatment. Follow-up appointments to monitor healing and adjust immobilization as needed. Long-term outcomes depend on fracture alignment, joint stability, and rehabilitation progress.

Complications

• Delayed union or nonunion of the fracture.
• Post-traumatic arthritis due to joint surface involvement.
• Nerve or vascular injury, though less common in nondisplaced cases.
• Chronic pain or stiffness in the knee.

Lifestyle & Prevention

• Use protective gear during high-risk activities.
• Maintain bone health through diet and exercise.
• Avoid falls by modifying home environments (e.g., removing tripping hazards).
• Engage in low-impact exercises to support joint health.

When to Seek Professional Help

Severe pain, swelling, or deformity after trauma. Inability to bear weight or move the knee. Numbness, tingling, or changes in skin color (possible nerve or vascular involvement). Worsening symptoms despite initial care.

Tips for Medical Coders

Document the fracture location (right femur), involvement (supracondylar with intracondylar extension), displacement status (nondisplaced), encounter type (initial), and fracture type (closed). Ensure clinical notes specify the absence of displacement and confirm the fracture is closed to support accurate coding.