Our Pit Bull/Australian Shepard cross had cruciate ligament surgery last spring. Our vet also offered two surgeries. One was about $1,700 for a plate to stabilize the joint performed by a specialist. The other was more traditional surgery where our vet would drill holes in the leg bones and run a strong filament through them to stabilize the joint. We opted for the less expensive surgery and after a veeeeeeery looooooong 8-week recovery period where I had a 70 pound Pit Bull living in my house and only going for leash walks, she is doing great. Of course Charlee thought it was just peachy-keen to lay on the couch all day and get to sleep inside when it was cold! She limps on the leg sometimes when she's been too active or has been laying down a long time, but otherwise the joint is very stable.
Gardening is better than therapy. Plus you get tomatoes.