I rode Lola, the newest addition to my remuda, yesterday. During a previous ride about 2-3 weeks ago, she was stumbling and dragging a rear leg. I gave her some bute and kept her to a walk to complete a trail ride we had embarked on. I put her away and let her rest, hoping things would heal themselves.
Yesterday, she was dragging her left rear leg IMMEDIATELY, even at a walk. I worked her fairly hard, and she kept stumbling and was just terrible through all her gaits, choppy and rough. She was pawing at the ground with her left rear leg and holding it in unusual positions while tied up after the ride. She is OBVIOUSLY hurt. I gave her some bute after the ride, and I'm likely going to visit the vet in a few days. I'm not sure what the problem is, but I'm praying it'll be a quick fix and involve low cost. But you never know with this stuff.
Below are the photos of how she was holding the leg.