Canine cruciate ligament torn

Jo

Hi all, my golden retriever has torn his other canine cruciate ligament. He tore his other one 3 years ago which we repaired through TPLO surgery. He is 10 years old with heart issues we’re getting assessed right now. We don’t want to put him under for surgery unless we know his heart is okay but no cardiologists can get us in until early May. Any advice to stabilize his leg in the meantime?? Help...