So it's been a few weeks since my horse had his LS/SI injected. He's definitely improved and is certainly moving better and more comfortable. The riding rehab has been very slow going because I'm paranoid. We're currently working on spiraling at the walk. He is off and on about bending in general (which I get) and releasing the lower neck. I do a lot of massage and trigger point before and during our sessions. Not sure how much would be neck arthritis related vs out of shape related. He's still very willing to stretch up, down, and along both sides (reached back and scratched his back leg when I was out there yesterday). Now that I see the improvement with the hind end, would it be worth it to inject the neck to see if there's a difference up front as well? I know the arthritis can alter how the shoulders/front legs move even when he still has good flexibility in the neck. Or should I continue rehabbing the hind end? As a side note, I have another call into the vet who treated him, but haven't been able to get any callbacks. I'm going to be contacting my local vet if he doesn't call back today.