kissing spine vs. hormonal problems
A little history - 11 year old pony mare always gets a little pissy in the winter. Behavior includes kicking out when you add leg, doesn't want to go forward, will get crooked to try to avoid an upward transition, etc. However, this behavior is not every ride and once you get her moving forward or lunge her first, behavior subsides and all is well. This has been going on for the past 3 winters. This winter the behavior is radically worse - kicks out all the time at your leg, doesn't want to go forward in any gait, bucks like mad, etc. However, the behavior isn't quite as bad if you lunge her first and if you can actually get her moving and ride through the antics, she settles into the gait and goes forward. If you take a walk break or stand, the behavior starts all over again. She's pretty much unrideable because of this. Doesn't do any of this on the lunge line or while being free lunged. She's happy to trot and canter.
The pony is not lame. She is symmetrical, tracks up well and is happy and eager to jump once you can get through all of the other crap (and she had her hocks done in October). She was on 5 weeks of ranitidine with no change in behavior. Chatted with vet who suggested Robaxin. After 5 days of Robaxin, she was worse so we scheduled an evaluation with the vet and also gave her a depo injection. She was ridden on day 8 of Robaxin which was 1 day after the depo, and she was considerably better. Ridden again day 9 of Robaxin, day 2 after after depo and there was only 1 bronc episode and after standing for 10 minutes went happily back to work. All of this in 20 degree weather. Vet was out today and took back films and found 4 vertebrae in the saddle area with severe impingement - really no space in between the vertebrae. After discussion of the film results and the improved behavior, we have decided to take her off the Robaxin, put her on Regumate and see what happens before taking any action on the kissing spine.
Has anyone had a situation like this, what did you do and what were the results?