S72.121P Displaced fracture of lesser trochanter of right femur, subsequent encounter for closed fracture with malunion

Name of the Condition

• Displaced fracture of lesser trochanter of right femur, subsequent encounter for closed fracture with malunion

Summary

This condition describes a displaced fracture of the lesser trochanter in the right femur, occurring during a subsequent encounter for a closed fracture that has healed with malunion. The lesser trochanter is a bony prominence on the femur serving as a muscle attachment site. Malunion indicates the fracture fragments have healed in a non-anatomical position, potentially affecting muscle function and stability. The fracture remains closed, with no skin breach.

Causes

Displaced fractures of the lesser trochanter typically result from trauma, such as falls or direct impact injuries. Malunion may occur if initial treatment or healing conditions were suboptimal, leading to improper bone alignment. Underlying bone weakness from conditions like osteoporosis can increase fracture susceptibility and malunion risk.

Risk Factors

• Advanced age, particularly in individuals with osteoporosis.
• Conditions weakening bone structure, such as osteoporosis or metastatic disease.
• Inadequate initial fracture management or immobilization.
• Poor nutritional status affecting bone healing.
• History of prior fractures or delayed healing.

Symptoms

• Persistent hip or groin pain, often localized to the lesser trochanter area.
• Reduced range of motion or muscle weakness in the hip.
• Visible or palpable deformity at the fracture site due to malunion.
• Difficulty with weight-bearing or altered gait.
• Possible discomfort during physical activity or movement.

Diagnosis

Physical examination assesses tenderness, range of motion, and deformity. Imaging, such as X-rays or CT scans, confirms the fracture's location, displacement, and malunion status. Comparison with prior imaging may help evaluate healing progression.

Treatment Options

• Pain management with medications or physical therapy to improve function.
• Orthopedic evaluation to determine if realignment or surgical intervention is needed.
• Activity modification to avoid stress on the affected area.
• Rehabilitation focusing on strength and mobility restoration.

Prognosis and Follow-Up

Prognosis depends on the degree of malunion and functional impact. Most patients achieve stability with conservative management, though some may experience long-term mobility limitations. Regular follow-up with imaging and clinical assessments monitors healing and functional recovery.

Complications

• Chronic pain or discomfort due to malunion.
• Reduced hip function or muscle weakness.
• Increased risk of future fractures in the affected area.
• Potential need for surgical correction if malunion causes significant impairment.

Lifestyle & Prevention

• Engage in weight-bearing exercises to maintain bone density, if appropriate.
• Ensure adequate calcium and vitamin D intake to support bone health.
• Use assistive devices (e.g., canes) to reduce fall risk and protect the hip.
• Follow rehabilitation guidelines to optimize healing and function.

When to Seek Professional Help

Seek care if pain worsens, mobility declines, or new symptoms (e.g., swelling, deformity) develop. Prompt evaluation is needed if weight-bearing becomes impossible or if signs of infection (e.g., redness, fever) occur.

Tips for Medical Coders

Document the encounter as a subsequent visit for a closed fracture with malunion. Include details on the fracture's status (e.g., healed, stable) and any functional impact. Ensure documentation supports the malunion diagnosis and subsequent encounter timing.