S72.335M Nondisplaced oblique fracture of shaft of left femur, subsequent encounter for open fracture type I or II with nonunion

Name of the Condition

• Nondisplaced Oblique Fracture of Shaft of Left Femur, Subsequent Encounter for Open Fracture Type I or II with Nonunion

Summary

A nondisplaced oblique fracture of the shaft of the left femur is a break in the long, central portion of the thigh bone where the fracture line runs at an angle, and the bone fragments remain aligned. This type of fracture involves the diaphysis (main structural part) of the femur and is classified as an open fracture type I or II, indicating a break in the skin with minimal contamination or soft tissue damage. The subsequent encounter denotes ongoing care for this injury, and the presence of nonunion indicates the fracture has failed to heal properly within the expected timeframe.

Causes

Such fractures often result from high-impact trauma, such as motor vehicle accidents, falls from significant heights, or direct blows to the thigh. Rotational forces or axial loading (e.g., during sports or industrial injuries) can also cause this type of break. The open nature of the fracture suggests the bone has pierced the skin, typically due to the force of the injury. Nonunion may develop due to inadequate stabilization, poor blood supply, infection, or other factors that impede healing.

Risk Factors

• Participation in high-impact sports or activities.
• Osteoporosis or other bone-weakening conditions.
• Advanced age, due to decreased bone density.
• Prior history of fractures or bone abnormalities.
• Trauma or accidents involving significant force.
• Poor nutrition or smoking, which can impair bone healing.
• Inadequate initial treatment or immobilization.

Symptoms

• Persistent pain at the fracture site, often worsening with activity.
• Swelling, bruising, or tenderness around the affected area.
• Inability to bear weight on the left leg.
• Possible numbness or tingling if nerve involvement occurs.
• Visible or palpable abnormal movement at the fracture site (if nonunion is severe).
• Delayed healing or lack of improvement despite treatment.

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging tests such as X-rays to visualize the fracture and assess healing progress. CT scans or MRI may be used to evaluate nonunion or soft tissue involvement. Blood tests to check for infection or nutritional deficiencies that could affect healing.

Treatment Options

• Surgical intervention, such as internal fixation with plates or screws, to stabilize the fracture and promote healing.
• Bone grafting to stimulate bone growth and address nonunion.
• Antibiotics if infection is present.
• Pain management with medications or physical therapy to restore mobility and strength.
• Immobilization with a cast or brace to support the fracture during healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the nonunion, overall health, and response to treatment. Most patients can achieve healing with appropriate intervention, but recovery may take several months. Regular follow-up appointments with imaging to monitor progress are essential. Physical therapy is often recommended to restore function and prevent complications like muscle atrophy or joint stiffness.

Complications

• Chronic pain or discomfort.
• Infection at the fracture site.
• Nerve or blood vessel damage.
• Malunion (improper healing) or nonunion (failure to heal).
• Limited mobility or disability.
• Deep vein thrombosis (DVT) due to prolonged immobility.

Lifestyle & Prevention

• Avoid high-impact activities until cleared by a healthcare provider.
• Maintain a balanced diet rich in calcium and vitamin D to support bone health.
• Quit smoking, as it impairs bone healing.
• Use protective equipment during sports or activities with a risk of injury.
• Follow post-treatment guidelines for weight-bearing and activity restrictions.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, swelling, or inability to move the leg. Contact your healthcare provider if symptoms worsen, or if you notice signs of infection (e.g., fever, redness, pus) at the fracture site. Follow up as scheduled to monitor healing and address any concerns.

Tips for Medical Coders

Document the fracture type (open I or II), laterality (left femur), and the presence of nonunion clearly. Specify the encounter as "subsequent" to indicate ongoing care for a previously treated injury. Include details about the fracture's alignment (nondisplaced) and any contributing factors to nonunion, such as infection or inadequate prior treatment, to support accurate coding.