S82.54 Nondisplaced fracture of medial malleolus of right tibia

Name of the Condition

• Nondisplaced fracture of medial malleolus of right tibia

Summary

A nondisplaced fracture of the medial malleolus of the right tibia is a break in the inner bony prominence of the lower leg (tibia) near the ankle, where the bone fragments remain in their normal alignment. This injury typically involves a stable fracture pattern, as the bone does not shift out of place, and the ankle joint retains its structural integrity. Treatment focuses on immobilization and healing, with less risk of long-term joint instability compared to displaced fractures.

Causes

Nondisplaced fractures of the medial malleolus usually result from direct trauma, such as falls, twisting injuries, or low-impact events like sports collisions. Sudden rotational forces or excessive stress on the ankle joint can also cause this type of fracture, often without significant displacement due to the bone’s inherent stability or the nature of the force applied.

Risk Factors

• Participation in activities with a high risk of ankle injury, such as contact sports or gymnastics.
• Osteoporosis or other bone-weakening conditions that reduce bone density.
• Previous ankle injuries or surgeries that may weaken the joint.
• Age-related bone loss, particularly in older adults.

Symptoms

• Pain and swelling localized to the inner ankle.
• Difficulty bearing weight on the affected foot.
• Bruising and tenderness at the fracture site.
• Minimal to no visible deformity, as the bone remains aligned.

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and range of motion. Imaging studies, such as X-rays, are used to confirm the fracture and verify that the bone fragments are not displaced. In some cases, additional imaging like a CT scan may be used to evaluate the fracture pattern more closely, especially if clinical suspicion is high despite initial imaging.

Treatment Options

Treatment typically includes immobilization with a cast or brace to allow the bone to heal. Pain management and activity modification are recommended during the healing period. Physical therapy may be prescribed after immobilization to restore strength and mobility. Surgical intervention is generally not required for nondisplaced fractures unless there are associated injuries or complications.

Prognosis and Follow-Up

The prognosis for a nondisplaced fracture of the medial malleolus is generally favorable, with most patients achieving full recovery without long-term complications. Follow-up appointments are necessary to monitor healing, typically with repeat imaging to confirm bone union. Return to normal activities is gradual, guided by pain levels and functional recovery.

Complications

• Delayed healing or nonunion, particularly in patients with poor bone health.
• Post-traumatic arthritis, though less common with nondisplaced fractures.
• Nerve or soft tissue damage from the initial injury or immobilization.
• Residual pain or stiffness, which may require ongoing management.

Lifestyle & Prevention

• Wear appropriate footwear and use ankle supports during high-risk activities.
• Maintain bone health through a balanced diet rich in calcium and vitamin D.
• Avoid sudden twisting motions or excessive stress on the ankle.
• Engage in regular exercise to strengthen the ankle and lower leg muscles.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, inability to bear weight, or visible deformity of the ankle. Contact a healthcare provider if swelling, pain, or bruising worsens over time, or if you develop signs of infection, such as redness, warmth, or fever.

Tips for Medical Coders

Document the fracture as nondisplaced and specify the right tibia to align with the code S82.54. Include details about the mechanism of injury, imaging findings, and treatment approach to support accurate coding. Ensure documentation reflects the absence of displacement and the specific anatomical location to avoid miscoding.