S82.152P Displaced fracture of left tibial tuberosity, subsequent encounter for closed fracture with malunion

Name of the Condition

• Displaced fracture of left tibial tuberosity, subsequent encounter for closed fracture 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 code specifies a subsequent encounter for a closed fracture with malunion, indicating the fracture has healed in a non-anatomical position without skin penetration. Malunion refers to improper bone healing that may lead to functional impairment or deformity.

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. Malunion may occur if the initial fracture was not properly aligned or immobilized during healing.

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
• Inadequate immobilization or premature weight-bearing after initial fracture

Symptoms

• Persistent pain and swelling over the tibial tuberosity
• Limited knee range of motion or difficulty bearing weight
• Visible deformity or abnormal positioning of the knee
• Bruising or discoloration in the affected area
• Functional impairment, such as difficulty with activities requiring knee extension

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and deformity. Imaging studies, such as X-rays, are used to confirm the fracture and evaluate malunion. Additional tests like CT scans may be ordered to assess the extent of displacement and healing. Clinical history of prior fracture and healing timeline is also considered.

Treatment Options

Treatment focuses on managing symptoms and addressing functional impairment. Options may include physical therapy to improve range of motion and strength, pain management, and orthotic devices. Surgical intervention may be considered for severe malunion affecting knee function. Rehabilitation is tailored to the individual's activity level and symptoms.

Prognosis and Follow-Up

Prognosis depends on the degree of malunion and functional impact. Most patients experience improved symptoms with conservative management, though some may have persistent limitations. Follow-up care involves monitoring for complications and assessing functional recovery. Long-term outcomes vary based on the severity of the malunion and adherence to treatment.

Complications

• Chronic pain or discomfort
• Reduced knee mobility or stiffness
• Increased risk of future knee injuries
• Potential need for surgical correction if malunion is severe
• Psychological impact due to activity limitations

Lifestyle & Prevention

• Engage in regular low-impact exercise to maintain knee strength and flexibility
• Use proper protective gear during high-risk activities
• Avoid sudden, forceful knee movements
• Maintain a healthy weight to reduce joint stress
• Follow post-fracture care instructions to minimize malunion risk

When to Seek Professional Help

Seek medical attention if you experience worsening pain, swelling, or difficulty bearing weight. Consult a healthcare provider if you notice persistent deformity or if symptoms do not improve with conservative measures. Prompt evaluation is important if you experience new or worsening functional limitations.

Tips for Medical Coders

This code is used for a subsequent encounter of a closed fracture with malunion. Document the encounter type (subsequent) and confirm the fracture is closed (no skin penetration) and malunion is present. Include details on the healing status, functional impact, and any treatment provided. Ensure documentation supports the malunion diagnosis and subsequent encounter timing.