S82.155A Nondisplaced fracture of left tibial tuberosity, initial encounter for closed fracture

Name of the Condition

• Nondisplaced fracture of left tibial tuberosity, initial encounter for closed fracture

Summary

A nondisplaced fracture of the left tibial tuberosity involves a break in the bony prominence on the anterior upper tibia where the patellar tendon attaches. The bone fragments remain aligned, and the fracture is closed (no skin penetration). This injury typically results from trauma or excessive stress on the knee, particularly in active individuals.

Causes

Traumatic injury is the primary cause, such as direct impact to the knee, falls, or sudden forceful contraction of the quadriceps muscle. Sports-related incidents, motor vehicle accidents, or other high-impact events can lead to this fracture.

Risk Factors

• Participation in activities with rapid knee extension or jumping (e.g., basketball, soccer)
• Adolescent growth spurts, especially in athletes
• Previous knee injuries or surgeries
• Osteoporosis or bone-weakening conditions

Symptoms

• Localized pain and swelling over the tibial tuberosity
• Difficulty extending the knee or bearing weight
• Bruising or tenderness on palpation
• Minimal deformity due to nondisplacement

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and functional limitations. Imaging studies, such as X-rays, are used to confirm the fracture and evaluate alignment. Additional tests like MRI may be ordered to assess soft tissue damage if clinically indicated.

Treatment Options

• Immobilization with a brace or cast to stabilize the fracture
• Pain management with analgesics or anti-inflammatory medications
• Physical therapy to restore knee function and strength
• Activity modification to avoid further stress on the knee

Prognosis and Follow-Up

Most nondisplaced fractures heal well with conservative management. Follow-up appointments monitor healing progress, and physical therapy is often recommended to restore mobility. Full recovery typically occurs within 6–8 weeks, depending on the individual’s activity level and adherence to treatment.

Complications

• Delayed union or nonunion of the fracture
• Chronic pain or stiffness in the knee
• Re-fracture due to premature return to high-impact activities
• Rarely, avulsion of the patellar tendon if displacement occurs later

Lifestyle & Prevention

• Use proper protective gear during sports or high-risk activities
• Strengthen quadriceps and surrounding muscles to support the knee
• Avoid sudden, forceful movements that strain the knee
• Maintain bone health through adequate nutrition and exercise

When to Seek Professional Help

Seek immediate medical attention if there is severe pain, inability to bear weight, visible deformity, or signs of infection (e.g., fever, redness, drainage). Persistent pain or limited mobility after initial treatment also warrants evaluation.

Tips for Medical Coders

Document the fracture as nondisplaced and specify the left tibial tuberosity. Note the initial encounter for a closed fracture, as these details are critical for accurate coding. Include clinical findings (e.g., imaging results, physical exam) to support the diagnosis and ensure compliance with coding guidelines.