S82.011S Displaced osteochondral fracture of right patella, sequela

Name of the Condition

• Displaced osteochondral fracture of right patella, sequela

Summary

This condition represents a displaced osteochondral fracture of the right patella (kneecap) that has progressed to a sequela, indicating residual effects or complications following the initial injury. The fracture involves both bone and cartilage, with displacement meaning the fragments are not aligned properly. Sequela refers to the long-term consequences of the injury, such as chronic pain, joint instability, or functional impairment.

Causes

The sequela arises from a prior displaced osteochondral fracture of the right patella, typically caused by direct trauma to the knee (e.g., falls, high-impact injuries, or sports-related incidents). The initial injury may have involved forceful blows, rotational stress, or muscle contractions that displaced the bone-cartilage fragment. Over time, incomplete healing or malunion can lead to persistent symptoms or structural changes.

Risk Factors

• Prior history of knee trauma or surgery.
• Inadequate initial treatment or nonunion of the fracture.
• Osteoporosis or bone-weakening conditions affecting healing.
• High-impact activities or occupations increasing knee stress.
• Advanced age, which may impair bone repair and joint function.

Symptoms

• Chronic pain in the right knee, often worsened by activity.
• Swelling or stiffness that persists beyond the acute phase.
• Reduced range of motion or difficulty bearing weight.
• Visible deformity or instability in the kneecap area.
• Crepitus (grinding sensation) during knee movement.

Diagnosis

A physical examination to assess knee stability, range of motion, and tenderness. Imaging studies, such as X-rays, to evaluate bone alignment and healing. CT or MRI may be used to assess cartilage damage or residual displacement. Clinical correlation with the patient’s history of prior injury is essential to confirm the sequela.

Treatment Options

• Conservative management: Physical therapy to improve strength and mobility, pain management, and activity modification.
• Surgical intervention: If significant displacement, instability, or functional impairment persists, procedures like fragment removal, realignment, or cartilage repair may be considered.
• Orthopedic devices: Braces or supports to stabilize the knee during healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the initial injury, treatment adherence, and individual healing capacity. Chronic symptoms or functional limitations may persist. Regular follow-up with an orthopedic specialist is recommended to monitor joint health and adjust management as needed.

Complications

• Post-traumatic arthritis due to cartilage damage.
• Chronic pain or instability affecting daily activities.
• Reduced mobility or difficulty with weight-bearing.
• Need for additional surgeries if complications arise.

Lifestyle & Prevention

• Avoid high-impact activities that stress the knee.
• Maintain a healthy weight to reduce joint load.
• Engage in low-impact exercises (e.g., swimming) to preserve mobility.
• Use protective gear during sports or high-risk activities.
• Follow rehabilitation protocols after injury to optimize healing.

When to Seek Professional Help

Seek care if chronic knee pain worsens, swelling recurs, or mobility significantly declines. Immediate attention is needed for sudden increases in pain, visible deformity, or inability to bear weight, as these may indicate new injury or complications.

Tips for Medical Coders

Document the sequela status clearly, noting the prior displaced osteochondral fracture of the right patella and its residual effects. Ensure clinical correlation with imaging or physical exam findings to support the sequela designation. Code S82.011S is appropriate for this condition when the sequela is the focus of care.