The goal is to work between the Achilles tendon and peritendineum. When the scope is introduced, and this is the image, you are not in the correct layer. The fibrous structure of the Achilles tendon is not yet visible, so release should be done more onto the tendon.

After repeated release with the blunt trocar and introduction of the scope, we now are in the correct layer. Adhesion is visible in this image.

Adhesions

Under direct vision the visible adhesions are released. Here we see a released peritendineum.

The medial, lateral and anterior sides of the tendon are also released with the blunt trocar.

With a shaver introduced through the proximal portal remnants of adhesions and peritendineum are removed. The shaver should be kept onto the tendon to prevent iatrogenic damage. Changing portals can be helpful. At the end of the procedure it must be possible to move the arthroscope over the complete symptomatic area of the Achilles tendon.

The plantaris tendon is identified on the medial border of the Achilles tendon.

The plantaris tendon is released with a probe.

And cut proximally. After this the procedure is finished.