S82.012S Displaced osteochondral fracture of left patella, sequela

Name of the Condition

• Displaced osteochondral fracture of left patella, sequela

Summary

This condition represents a displaced fracture of the left patella (kneecap) involving both bone and cartilage, with the term "sequela" indicating it is a late effect or complication of a prior injury. The fracture fragments remain displaced, and the condition reflects ongoing consequences from the original trauma, such as persistent joint dysfunction or structural changes.

Causes

The sequela arises from a previous displaced osteochondral fracture of the left patella. The initial injury likely resulted from direct trauma to the knee, such as a fall, blow, or high-impact event, which caused the bone-cartilage fragment to separate and displace. The current state is a residual effect of that prior event.

Risk Factors

• Prior history of knee trauma or fracture.
• Inadequate initial treatment or healing of the original injury.
• Underlying conditions affecting bone or cartilage integrity (e.g., osteoporosis).
• Activities or occupations involving repetitive knee stress.

Symptoms

• Chronic pain in the left knee, often worsened by movement or weight-bearing.
• Persistent swelling or stiffness in the kneecap area.
• Reduced range of motion or difficulty fully extending the knee.
• Possible clicking, locking, or instability during joint movement.
• Visible or palpable deformity if displacement is severe.

Diagnosis

A clinical evaluation focuses on the history of the prior injury and current symptoms. Imaging, such as X-rays or MRI, assesses the patella's alignment, cartilage integrity, and any remaining displacement. The diagnosis confirms the sequela by linking the current findings to the original fracture.

Treatment Options

Management depends on symptom severity and functional impact. Conservative approaches include physical therapy to improve strength and mobility. Surgical intervention may be considered for significant displacement or persistent pain, such as fragment removal or realignment. Pain management and activity modification are often part of the plan.

Prognosis and Follow-Up

Prognosis varies based on the extent of residual damage and treatment response. Some patients experience long-term stiffness or arthritis, while others regain near-normal function. Regular follow-up monitors for complications like joint degeneration and adjusts treatment as needed.

Complications

• Post-traumatic arthritis in the knee joint.
• Chronic pain or instability.
• Limited mobility or difficulty with daily activities.
• Need for additional surgery if symptoms worsen.

Lifestyle & Prevention

• Avoid high-impact activities that stress the knee.
• Use supportive footwear and proper form during exercise.
• Maintain a healthy weight to reduce joint load.
• Engage in low-impact exercises (e.g., swimming) to preserve mobility.

When to Seek Professional Help

Seek care if chronic knee pain worsens, swelling increases, or mobility significantly declines. Sudden changes in symptoms or new deformity require prompt evaluation to rule out new injuries or complications.

Tips for Medical Coders

This code is used for the sequela of a displaced osteochondral fracture of the left patella. Document the relationship to the original injury, including the time elapsed since the initial event, to support the sequela designation. Ensure clinical notes specify the nature of the residual effects (e.g., persistent displacement, functional impairment) to justify the code.