S82.0 Fracture of patella

Name of the Condition

• Fracture of patella

Summary

This condition involves a break in the patella (kneecap), a triangular bone that protects the knee joint. Fractures can range from small cracks to complete breaks, and the severity depends on the extent of the injury and whether the bone fragments are displaced.

Causes

Direct trauma to the knee, such as a fall onto the kneecap, a blow from an object, or a forceful contraction of the quadriceps muscle. High-impact injuries, like those from sports or motor vehicle accidents, are common triggers.

Risk Factors

• Participation in activities with a high risk of knee injury, such as contact sports or skiing.
• Osteoporosis or other bone-weakening conditions.
• Previous knee injuries or surgeries.
• Advanced age, which may reduce bone density.

Symptoms

• Sudden, severe pain in the knee.
• Swelling and bruising around the kneecap.
• Inability to straighten the knee or bear weight.
• Visible deformity or a gap in the kneecap area.
• A "popping" sensation at the time of injury.

Diagnosis

A physical examination to assess knee movement, swelling, and tenderness. Imaging studies, typically X-rays, to confirm the fracture and evaluate bone alignment. In some cases, a CT scan may be used to assess complex fractures or displacement.

Treatment Options

• Conservative management: Immobilization with a brace or cast for nondisplaced fractures, followed by physical therapy to restore strength and mobility.
• Surgical intervention: For displaced fractures, surgery may involve realigning and fixing the bone with screws, wires, or plates.
• Pain management: Medications to reduce discomfort and inflammation.
• Rehabilitation: Gradual exercise to improve knee function and prevent stiffness.

Prognosis and Follow-Up

Most patients recover well with appropriate treatment, though recovery time varies by fracture severity. Follow-up appointments are essential to monitor healing and adjust rehabilitation plans. Long-term outcomes depend on the extent of the injury and adherence to treatment.

Complications

• Nonunion (failure of the bone to heal) or malunion (improper healing).
• Post-traumatic arthritis, leading to chronic pain or stiffness.
• Infection, particularly if surgery is required.
• Reduced range of motion or persistent instability in the knee.

Lifestyle & Prevention

• Wear protective gear during high-risk activities.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Strengthen the quadriceps and surrounding muscles to support the knee.
• Avoid sudden, forceful movements that strain the knee.

When to Seek Professional Help

• Immediate medical attention is needed if there is severe pain, inability to move the knee, or visible deformity after an injury. Seek care if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

• Use this code for fractures of the patella, specifying laterality (e.g., left or right) and encounter type (initial, subsequent, or sequela) as appropriate. Document the fracture type (e.g., displaced, nondisplaced) and any associated complications to ensure accurate coding.