Hello, new to this forum, looking for some advice. I have a 5 year old female retired racer. She was jumping last Saturday 1/23 on leash in the snow, nothing crazy. But she landed on her feet and suddenly was screaming and limping on her back right leg. I thought maybe she had stepped on something in the snow. She came inside the house limping and still screaming. She finally calmed down and lied down in her bed and seemed to be doing okay. I took her out later than night for potty and she walked down the outside stairs ok (she did a stretch and whimpered a little when stretching her back legs) and seemed on the mend. But on Sunday, when she woke up she was a lot worse and could not stand up with out screaming in pain or walk. I took her to the vet that day, but the X-ray showed nothing abnormal (broken bones, fractures, cancer signs), so they think it is a soft tissue injury. They gave her gabapentin and carbuprofen to go home with with instructions her only activity for the next 14 days is potty and she needs to be on bed rest to help heal. She has been on strict bed rest, only getting up for potty breaks. I have been using a harness to keep weight off her back legs for more support. She cannot walk without it. After two days she was still in pain and not walking well, so they gave her a 72 hour fentanyl patch on Tuesday 1/26 for stronger pain relief. That seemed to help a lot, but it may have been masking the pain, as today it seemed like the fentanyl was fully out of her system because she did not want to walk on her back leg and screaming and was limping when walking outside for the brief time she made it out there. Every time she gets up she is yelping in pain and when walking. She does not even want to get up to go potty even though she knows she need to go and is uncomfortable. The vet said to take her back in for re-evaluation if she was not better in 3-5 days. She seemed to be getting better up until yesterday, but I'm afraid it was just the fentanyl masking her pain. As a side note, she is a vocal dog in general if you push her wrong on accident on the couch, but she is definitely in pain, though a small portion might be her anxiety. I'm planning on taking her back to the vet in the morning. Does anyone have any suggestions on if this sounds like a soft tissue injury or something else? Might an ultrasound help pin point what is wrong? I'm afraid that it might be something more serious that might require surgery and I am hurting her by waiting too long. Many thanks.