I have been watching videos this evening in an attempt to learn all I can about the surgical procedure(s) Gus will need. We know he will have the patellar luxation addressed, and he may need a TTA, which the surgeon will not know until she inspects the CCL during surgery.
The first video shows the surgical correction of patella luxation. Warning: This is a graphic video of an actual surgery. It can be viewed at https://www.youtube.com/watch?v=75LCtZgyJJA.
The second video shows a surgeon discussing the procedure with good illustrations, and he briefly touches on complications that could arise and activity restrictions following surgery. View at https://www.youtube.com/watch?v=QzqdO2cIN00.
The third video is the same surgeon in the second video discussing Tibial Tuberosity Advancement (TTA), which is the surgical repair of the CCL. View at https://www.youtube.com/watch?v=j7b1RChDIE8.
The fourth video is short in length (2 min 26 sec) and shows highlights from an actual TTA surgery. It may be viewed at https://www.youtube.com/watch?v=6pYOLQ6VkC0.