S92.146 Nondisplaced dome fracture of unspecified talus

Name of the Condition

• Nondisplaced dome fracture of unspecified talus

Summary

A nondisplaced dome fracture of the talus refers to a break in the dome-shaped upper surface of the talus bone without significant displacement of the bone fragments. This injury affects the ankle joint, potentially disrupting weight-bearing and mobility. 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 depends on the severity and may include immobilization with a cast or boot, pain management, and physical therapy. Severe cases may require surgical intervention to stabilize the fracture.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with proper immobilization and rehabilitation. Follow-up care is essential to monitor healing and restore function, with recovery time varying based on individual factors.

Complications

Potential complications include delayed healing, arthritis in the ankle joint, or chronic pain. In rare cases, infection or nerve damage may occur.

Lifestyle & Prevention

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

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 or swelling after initial treatment also warrants evaluation.

Tips for Medical Coders

Document the fracture type (nondisplaced) and specify the talus involvement. Ensure clinical notes support the absence of displacement and confirm the injury is not bilateral or site-specific (right/left) for accurate coding.