S92.145 Nondisplaced dome fracture of left talus

Name of the Condition

• Nondisplaced dome fracture of left talus

Summary

A nondisplaced dome fracture of the left talus is a break in the dome-shaped upper surface of the talus bone on the left side, where the bone fragments remain in their normal alignment. This injury affects the ankle joint, potentially disrupting weight-bearing and movement. The talus connects the foot to the lower leg and is critical for ankle function.

Causes

Direct trauma to the ankle, such as falls, sports injuries, or motor vehicle accidents, is the most common cause. High-impact forces or twisting motions can also lead to dome fractures, particularly in activities involving sudden stops or changes in direction.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer) or activities with a risk of ankle injury.
• Osteoporosis or other conditions that weaken bone density.
• Previous ankle or talus injuries.
• Improper footwear or inadequate protective gear during physical activities.

Symptoms

• Sudden, severe pain in the ankle or foot.
• Swelling and bruising around the injury site.
• Difficulty bearing weight or walking.
• Limited range of motion in the ankle joint.
• Possible deformity or abnormal positioning of the foot.

Diagnosis

A healthcare provider will perform a physical examination to assess pain, swelling, and mobility. Imaging tests, such as X-rays, CT scans, or MRIs, are typically used to confirm the fracture and evaluate alignment.

Treatment Options

Treatment may include immobilization with a cast or boot to allow healing, pain management, and physical therapy to restore strength and mobility. Severe cases may require surgical intervention, though nondisplaced fractures often heal with conservative care.

Prognosis and Follow-Up

Most nondisplaced dome fractures heal well with proper treatment, but recovery time can vary. Follow-up appointments are important to monitor healing and adjust care as needed. Long-term outcomes depend on the severity of the injury and adherence to rehabilitation.

Complications

Potential complications include delayed healing, arthritis in the ankle joint, or chronic pain. In rare cases, avascular necrosis (loss of blood supply to the bone) may occur, requiring further intervention.

Lifestyle & Prevention

• Wear supportive footwear during physical activities.
• Use protective gear (e.g., ankle braces) in high-risk sports.
• Maintain bone health through proper nutrition and exercise.
• Avoid activities that increase the risk of ankle trauma when possible.

When to Seek Professional Help

Seek immediate medical attention if you experience severe pain, inability to bear weight, or visible deformity after an injury. Persistent pain, swelling, or difficulty walking after initial treatment also warrants evaluation.

Tips for Medical Coders

Document the specific location (left talus) and fracture type (nondisplaced) to ensure accurate coding. Include details about the mechanism of injury, imaging results, and treatment plan to support code assignment. Verify that the fracture is confined to the dome of the talus and not associated with displacement or other complications.