X-rays. I had asked the associate vet at the practice to x-ray the entire leg because I'm always suspicious of osteosarcoma when an older Greyhound starts limping. She told me the x-rays looked fine, and that the knee felt loose and we were most likely looking at a ligament issue. I was suspicious of that diagnosis because I knew it was rare for a Greyhound to have an ACL/CCL injury absent a significant trauma, which my girl hadn't had. Her foot swelled the next day so back to the vet we went where we saw the practice owner who was our regular vet. He reviewed the x-rays and discovered that the rads the associate took stopped at the ankle. He x-rayed the foot and found the break.