Pain Treatments

Piriformis Trigger Point Injection

The piriformis muscle originates in the middle buttock and ends on the outer hip. A trigger point injection is an injection performed to help reduce small areas of involuntary muscle spasm in the piriformis that produce pain and/or limitations in movement and activities.

How is a trigger point injection performed?

The doctor will numb the skin above the muscle spasm. Then, guided by feel or ultrasound, he will:

  • Insert a thin needle into the muscle using a technique called “peppering”, which is where the needle is moved rapidly and around the inside of the area of muscle spasm.
  • Inject a mixture of anesthetic (for temporary pain relief)

The medicines help to block the pain signal, like turning off a light switch. Usually, the procedure takes less than five minutes and you can go home the same day.

How effective is a trigger point injection?

What are the risks?

What happens after the procedure?

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