Using Ultrasound to Diagnose Foot, Ankle, and Lower Leg Conditions

While physical exams and X-rays are useful diagnostic tools, they sometimes fall short in revealing the full extent of an issue. When this happens, ultrasound imaging can provide a clearer view to help diagnose pain, swelling, infection, or other symptoms in the feet, ankles, and lower legs.

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When Ultrasound Is Beneficial

Ultrasound is especially effective in identifying soft-tissue injuries and some bone-related problems that may not appear on X-rays. Conditions commonly diagnosed with ultrasound include:

  • Bursitis
  • Cartilage injuries
  • Foreign bodies
  • Heel spurs
  • Ligament or tendon tears and ruptures
  • Muscle strains and sprains
  • Neuroma
  • Plantar fasciitis
  • Rheumatoid arthritis
  • Soft tissue masses and tumors
  • Stress fractures
  • Tarsal Tunnel Syndrome
  • Tendonitis

Ultrasound can also be used therapeutically to help relieve symptoms associated with:

  • Bursitis
  • Sprains
  • Tendonitis

How Ultrasound Works

Ultrasound imaging operates using high-frequency sound waves that bounce off structures within the body. A computer then translates these echoes into real-time images.

The typical procedure includes:

  • Applying a water-based gel to the affected area
  • Gently pressing and moving a transducer over the skin to capture detailed images
  • Reviewing the images for signs of injury or abnormality

Most ultrasound exams are completed in 30 to 60 minutes and are completely non-invasive.