S72.453 Displaced supracondylar fracture without intracondylar extension of lower end of unspecified femur

Name of the Condition

• Displaced supracondylar fracture without intracondylar extension of lower end of unspecified femur

Summary

This condition involves a displaced fracture at the distal (lower) end of the femur, specifically in the supracondylar region (above the condyles). The fracture does not extend into the intracondylar area (the space between the condyles), which helps distinguish it from more complex knee joint fractures. Displacement means the bone fragments are out of their normal alignment, potentially affecting knee stability and function.

Causes

High-impact trauma, such as falls, motor vehicle accidents, or direct blows to the thigh. Sports injuries or physical altercations involving force to the knee or thigh. Stress fractures from repetitive overuse or strenuous activity, though less common for this specific type.

Risk Factors

• Advanced age, which may lead to decreased bone density.
• Osteoporosis or other bone-weakening conditions.
• Participation in high-risk activities or contact sports.
• Prior history of femur fractures or bone disorders.

Symptoms

• Severe pain in the knee or thigh area.
• Swelling, bruising, or visible deformity around the knee.
• Inability to bear weight or move the knee joint properly.
• Possible numbness or tingling if nerves are involved.

Diagnosis

Physical examination to assess pain, swelling, and limb alignment. Imaging studies, such as X-rays or CT scans, to confirm the fracture type, displacement, and rule out intracondylar involvement. Evaluation of neurovascular status to check for nerve or blood vessel damage.

Treatment Options

• Non-surgical management: Closed reduction (realignment of bone fragments) and immobilization with a cast or brace for stable, minimally displaced fractures.
• Surgical intervention: Open reduction and internal fixation (ORIF) with plates, screws, or rods for displaced or unstable fractures to restore alignment and stability.
• Rehabilitation: Physical therapy to restore range of motion, strength, and function after healing.

Prognosis and Follow-Up

Prognosis depends on fracture severity, displacement, and treatment success. Most patients recover well with appropriate management, but stiffness, weakness, or arthritis may occur. Follow-up imaging and clinical assessments monitor healing and guide rehabilitation. Long-term outcomes vary based on individual factors.

Complications

• Nonunion or malunion of the fracture.
• Post-traumatic arthritis of the knee joint.
• Nerve or blood vessel injury (e.g., peroneal nerve palsy).
• Infection (if surgical intervention is required).
• Chronic pain or reduced mobility.

Lifestyle & Prevention

• Fall prevention strategies, such as home modifications and balance training, especially for older adults.
• Bone health maintenance through adequate calcium, vitamin D, and weight-bearing exercise.
• Use of protective gear during high-risk activities (e.g., sports, construction work).
• Avoiding excessive repetitive stress on the knee or thigh.

When to Seek Professional Help

Seek immediate medical attention for severe pain, visible deformity, inability to bear weight, or signs of nerve/vessel involvement (e.g., numbness, coldness, discoloration). Follow up with a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the fracture location (unspecified femur), displacement status, and absence of intracondylar extension clearly. Specify laterality if known (right/left) for more precise coding. Include details on trauma mechanism, imaging findings, and treatment approach to support code assignment. Ensure documentation aligns with ICD-10-CM guidelines for displaced supracondylar fractures without intracondylar extension.