hi yuval,

with respect to your query let me answer the following;
1. tetra ankle immobilizer - its just an ankle immobilizer, tetra is the brand name. I use this product because it is approved by FLARE - Foundation for Latex Allergy Research and Education.
2. NWB crutch walking - well, NWB stands for Non Weight Bearing.
3. ADL - stands for Activities of Daily Living.
4. Anterolateral aspect - anterior means front, lateral means outer side.
5. Scar tissue formation - well, scar tissue or fibrous tissue formation is a normal biologic process of wound repair/healing in the skin and other tissues of the human body. Though it is a normal or natural part of the healing process, in some patients the extend tends to be prolific.
6. Ultrasound therapy is an accepted treatment modality for the management of prolific scar tissue formation.

hope you are clear now. take care,

thomas