S82.31 Torus fracture of lower end of tibia

Name of the Condition

• Torus fracture of lower end of tibia

Summary

This condition involves a torus fracture, a type of incomplete break, at the lower end of the tibia. Torus fractures typically occur in children due to the bone's flexibility, resulting in a buckling or compression of the bone rather than a complete break. The lower end of the tibia is part of the ankle joint, so injuries here may affect mobility and require specific management.

Causes

Torus fractures of the lower tibia usually result from direct trauma, such as falls or sports injuries, where the force causes the bone to buckle. High-impact forces or twisting motions can also lead to this type of injury. The bone's pliability in younger individuals makes them more susceptible to this fracture pattern.

Risk Factors

• Participation in high-impact activities or sports with a risk of falls
• Younger age, as torus fractures are more common in children
• Previous lower leg injuries or bone conditions affecting strength

Symptoms

• Pain and tenderness localized to the lower leg or ankle
• Swelling and bruising around the affected area
• Difficulty bearing weight or walking
• Possible visible deformity or instability

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 evaluate its severity. The buckled appearance of the bone is typically visible on imaging.

Treatment Options

Treatment often includes immobilization with a cast or splint to allow the bone to heal. Pain management and activity modification may be recommended. In most cases, torus fractures heal well with conservative care, and surgery is rarely needed.

Prognosis and Follow-Up

Prognosis is generally good, with most torus fractures healing completely with appropriate immobilization. Follow-up appointments may be scheduled to monitor healing and ensure proper recovery. Physical therapy might be recommended to restore strength and mobility.

Complications

Complications are rare but can include delayed healing, malunion, or persistent pain. In some cases, the fracture may affect growth if it occurs near a growth plate, though this is uncommon with torus fractures.

Lifestyle & Prevention

• Use protective gear during sports or activities with a fall risk
• Ensure proper nutrition to support bone health
• Practice safe movement techniques to reduce injury risk

When to Seek Professional Help

Seek medical attention if pain is severe, swelling worsens, or weight-bearing becomes impossible. Immediate care is needed if there are signs of an open fracture, such as visible bone or bleeding.

Tips for Medical Coders

Document the fracture type (torus) and location (lower end of tibia) clearly. Ensure the clinical record supports the diagnosis, as torus fractures are specific to incomplete buckling injuries. Code S82.31 is used when the fracture is documented as a torus fracture of the lower tibia.