S92.143 Displaced dome fracture of unspecified talus

Name of the Condition

• Displaced dome fracture of unspecified talus

Summary

A displaced dome fracture of the unspecified talus involves a break in the dome-shaped upper surface of the talus bone, with the bone fragments shifted out of 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 displacement.

Treatment Options

Treatment depends on the severity of displacement and may include immobilization with a cast or brace, pain management, and physical therapy. Surgical intervention may be necessary for significant displacement to realign and stabilize the bone.

Prognosis and Follow-Up

Recovery varies based on the extent of the fracture and treatment. Most patients regain function with proper care, but follow-up imaging and physical therapy are often recommended to monitor healing and restore mobility.

Complications

Potential complications include arthritis, chronic pain, nonunion (failure to heal), or avascular necrosis (loss of blood supply to the bone). Early intervention reduces these risks.

Lifestyle & Prevention

Wearing supportive footwear, using protective gear during sports, and avoiding high-risk activities can help prevent ankle injuries. Strengthening exercises for the ankle may also reduce fracture risk.

When to Seek Professional Help

Seek immediate medical attention for severe pain, inability to bear weight, or visible deformity. Persistent swelling, bruising, or difficulty walking after an injury also warrants evaluation.

Tips for Medical Coders

Document the side (unspecified in this case) and displacement status clearly. Ensure clinical notes support the diagnosis, as coding requires specificity about fracture location and alignment.