S82.152R Displaced fracture of left tibial tuberosity, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Name of the Condition

• Displaced fracture of left tibial tuberosity, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

Summary

A displaced fracture of the left tibial tuberosity involves a break in the bony prominence on the anterior upper tibia where the patellar tendon attaches. Displacement means the bone fragments are misaligned, which may affect knee function. This specific code refers to a subsequent encounter for an open fracture (type IIIA, IIIB, or IIIC) with malunion, indicating the fracture has healed in an abnormal position and the skin was pierced during the injury. The condition requires ongoing management due to the complexity of the fracture and healing process.

Causes

Traumatic injury is the primary cause, such as direct impact to the knee, falls, or sudden forceful contraction of the quadriceps muscle. Open fractures occur when the broken bone penetrates the skin, increasing infection risk. Malunion may result from inadequate initial treatment, poor blood supply, or excessive movement during healing. High-impact events, including motor vehicle accidents or sports-related trauma, are common triggers.

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
• High-impact trauma, such as falls or direct blows to the knee
• Delayed or inadequate initial fracture management

Symptoms

• Persistent pain and swelling over the tibial tuberosity
• Inability to fully extend the knee or bear weight on the affected limb
• Visible deformity or abnormal positioning of the knee due to malunion
• Bruising or discoloration in the affected area
• Possible signs of infection (e.g., redness, warmth, drainage) if the fracture was open

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, are used to confirm the fracture, evaluate displacement, and assess malunion. Additional tests like CT scans may be ordered to assess bone healing and alignment. Clinical history, including details of the initial injury and prior treatments, is critical for accurate coding and management.

Treatment Options

Treatment focuses on managing pain, promoting proper healing, and restoring function. Options may include physical therapy to improve range of motion and strength, orthopedic consultation for possible surgical correction of malunion, and monitoring for infection if the fracture was open. Pain management and activity modification are typically part of the care plan.

Prognosis and Follow-Up

Prognosis depends on the severity of the malunion and any complications from the open fracture. Follow-up care is essential to monitor healing, assess functional recovery, and address any long-term issues like chronic pain or instability. Regular imaging and clinical evaluations help guide treatment adjustments.

Complications

• Chronic pain or instability in the knee
• Limited range of motion due to malunion
• Increased risk of arthritis in the affected joint
• Potential for infection if the fracture was open
• Need for additional surgery to correct malunion

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider
• Use proper protective gear during sports or physical activities
• Maintain bone health through adequate nutrition and exercise
• Follow rehabilitation guidelines to optimize healing and function

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or deformity after a knee injury. Contact a healthcare provider if you notice signs of infection (e.g., redness, drainage) or if symptoms worsen despite treatment.

Tips for Medical Coders

This code is used for a subsequent encounter of a displaced left tibial tuberosity fracture with malunion, specifically for open fracture types IIIA, IIIB, or IIIC. Documentation must confirm the fracture type, malunion status, and that this is a subsequent encounter. Ensure clinical notes specify the fracture’s open nature and healing complications to support accurate coding.