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Living with foot pain can affect your ability to move freely, exercise, or enjoy everyday activities. Fortunately, advances in podiatry offer safe, non-invasive treatments that help ease pain and speed up recovery. One of the most effective methods is therapeutic ultrasound, a therapy used to manage soft tissue injuries and inflammation.

We’ll explain what therapeutic ultrasound is, how ultrasound therapy works, and why it might be the correct choice for your foot or ankle condition.

What You Need to Know About Therapeutic Ultrasound

Therapeutic ultrasound uses high-frequency sound waves to target soft tissue injuries, reduce pain, and support the body’s natural healing process. Unlike diagnostic ultrasound, which creates internal images for medical analysis, therapeutic ultrasound focuses on delivering energy to tissues below the skin. It’s used to treat conditions such as plantar fasciitis, Achilles tendonitis, ligament sprains, and the breakdown of scar tissue. It provides a non-invasive and effective option for patients seeking relief without relying on medication or undergoing surgery.

How Does Ultrasound Therapy Work?

So, how does ultrasound therapy work?

The treatment involves a small handheld device called a transducer that sends sound waves through the skin into the tissues beneath. These sound waves have a frequency higher than the human ear can detect, typically ranging from 1 to 3 MHz. As they move through the body, they create two key effects:

1. Thermal Effect

The sound waves cause vibrations in the tissues, producing gentle heat. This warming effect increases blood flow, relaxes tight muscles, and improves tissue flexibility. It’s especially helpful for chronic conditions where stiffness is a problem.

2. Mechanical Effect (Non-Thermal)

Even without generating heat, the sound waves still have a physical effect on the tissues. They create tiny bubbles and gently move fluid around the area, which helps reduce swelling, supports cell repair, and encourages healing, especially in recent injuries. This process allows the body to recover faster and more effectively.

What Are the Main Therapeutic Ultrasound Uses?

There are numerous therapeutic ultrasound applications, particularly in the treatment of foot and ankle conditions. Some of the most common include:

Plantar Fasciitis

A painful inflammation of the tissue along the bottom of the foot. Ultrasound helps reduce tightness and inflammation, easing discomfort and improving mobility.

Achilles Tendonitis

Inflammation in the tendon at the back of the ankle. Ultrasound therapy enhances blood flow to the affected area, accelerating healing and reducing pain.

Ankle Sprains

Ligaments that are overstretched or torn during an ankle twist can heal more effectively with the use of ultrasound. It supports tissue repair and reduces swelling.

Neuroma

This condition causes pain between the toes due to nerve irritation. Therapeutic ultrasound reduces inflammation around the nerve, relieving symptoms.

Arthritis and Bursitis

Ultrasound can improve joint flexibility, ease stiffness, and reduce pain caused by inflammation in the foot or ankle joints.

Scar Tissue Management

After surgery or injury, scar tissue can limit movement. Ultrasound helps soften the tissue and restore flexibility.

Benefits of Ultrasound Therapy

The benefits of ultrasound therapy include:

  • Non-invasive: No needles or surgery required.
  • Drug-free pain relief: Reduces discomfort without relying on painkillers.
  • Speeds up healing: Helps your body repair soft tissues faster.
  • Reduces swelling and inflammation: Especially helpful in acute injuries.
  • Improves mobility: Loosens tight muscles and improves flexibility.
  • Safe and accessible: Widely used in podiatry clinics with minimal risks.

With the benefits in mind, it’s helpful to know how the treatment works in practice, especially the difference between continuous and pulsed ultrasound.

Continuous vs Pulsed Ultrasound: What’s the Difference?

Ultrasound therapy can be delivered in two ways:

Continuous Ultrasound

This mode sends a steady stream of sound waves into the tissues. It creates more heat and is often used for chronic conditions where increased blood flow and warmth are beneficial.

Pulsed Ultrasound

In this mode, the sound waves are sent in short bursts with pauses in between. This reduces heat build-up and focuses more on the mechanical effects, making it ideal for fresh or inflamed injuries.

We will select the most suitable setting based on your condition and stage of recovery.

Is Ultrasound Therapy Safe?

When used correctly, ultrasound therapy is a safe and simple treatment. It doesn’t break the skin, and most people find it easy to tolerate. However, it shouldn’t be used over wounds, infected skin, or metal implants.

Sessions are typically brief, lasting around 5 to 10 minutes, and may be repeated several times a week. You may notice a gentle warmth or tingling sensation, but the treatment shouldn’t cause pain.

What Happens During a Treatment Session?

When you arrive for treatment, your podiatrist will apply a gel to the affected area. This helps the sound waves move from the device into your body. They’ll then move the handheld device in small circles over the area.

You may feel a gentle warming or slight vibration, but the process is painless. Depending on the nature of your injury, a course of 4–6 sessions may be recommended.

Is Therapeutic Ultrasound Right for You?

Ultrasound therapy may be suitable if you’re dealing with:

  • Ongoing heel or foot pain
  • A recent sprain or tendon injury
  • Stiff joints or limited mobility
  • Slow recovery from a past injury or surgery

It’s most effective when combined with a comprehensive treatment plan, including rest, exercise guidance, and supportive devices.

How Our Podiatrists Use Therapeutic Ultrasound

At Highett Podiatry, we use therapeutic ultrasound as part of tailored treatment plans for a wide range of foot and ankle problems. Depending on your condition, we may use continuous or pulsed ultrasound to reduce pain, ease inflammation, and speed up healing.

We often combine ultrasound therapy with other treatments, such as custom orthotics, strength and mobility exercises, or dry needling, to achieve the best results. Whether you’re an athlete dealing with an overuse injury or someone managing ongoing joint pain or stiffness, our team will create a plan that works for your needs.

If you’re experiencing foot pain, don’t wait for it to worsen. Therapeutic ultrasound is a safe and gentle way to support your recovery and help you regain your mobility.

Call us on (03) 9555 3044 or book an appointment by visiting one of our clinics in Highett or Mentone. Our team is ready to help you move more comfortably and live pain-free.

FAQs

Does therapeutic ultrasound work for plantar fasciitis?

Yes, therapeutic ultrasound is highly effective for plantar fasciitis. The sound waves help reduce inflammation in the plantar fascia tissue along the bottom of your foot, decrease tightness, and improve mobility. The treatment increases blood flow to the affected area and supports your body’s natural healing process, providing significant pain relief for this common condition.

How long does ultrasound therapy take to work?

Most patients begin experiencing relief within 2-3 sessions, with a typical treatment course of 4-6 sessions showing optimal results. Each session lasts only 5-10 minutes, and treatments are usually scheduled several times per week. The timeline depends on your specific condition, with acute injuries often responding faster than chronic conditions.

Is ultrasound therapy painful?

No, therapeutic ultrasound is a painless treatment. You may feel a gentle warming sensation or slight tingling as the sound waves penetrate your tissues, but the process should never cause discomfort. The treatment is non-invasive and well-tolerated by most patients, making it an excellent alternative to more invasive procedures.

How many ultrasound therapy sessions do I need?

Most patients require 4-6 ultrasound therapy sessions for optimal results. Sessions last 5-10 minutes each and are typically scheduled 2-3 times per week. Your podiatrist will assess your condition and progress in recovery to determine the exact number of sessions needed, as acute injuries may require fewer sessions than chronic conditions.

What conditions can therapeutic ultrasound treat?

Therapeutic ultrasound effectively treats numerous foot and ankle conditions, including plantar fasciitis, Achilles tendonitis, ankle sprains, neuromas, arthritis, bursitis, and scar tissue management. It’s particularly beneficial for soft tissue injuries, inflammation, and conditions requiring improved blood flow and tissue healing. Your podiatrist will determine if ultrasound therapy is suitable for your specific condition.