Hi
I have a lot of experience of kissing spines! 4 years now! You will be pleased to hear there is a happy ending but it takes a lot of work!
I purchased my mare in May 2005, I showjumped her succesfully for a year until she started napping which became worse to the point where she reared vertically as soon as I mounted! I consulted the well known vet, Dietrich Von Schweinitz based on Surrey (luckily only 5 miles from me), he immediately diagnosed kissing spines from T14 - T18 with associated facet joint DJD, he diagnosed various treatments including physio, osteopathy, shock wave, acupuncture and a lot of lunging!!!! The saddle was also re-fitted with Flair panels (these are essential for a horse with kissing spines).
There is no miracle cure with kissing spines, it is a life long sentence and not many people I have known bother, my horse could no longer jump (well 18 inches - whats the point), it was not making her happy so we stopped, it was only when we did this that our problems reduced and started to improve). The treatment from the vet for 6 months set us on our way together with lunging (did not use a Pessoa as this stage, I used a method suggested by the physio which was simply a lunge rein through the bit on one side and then down between the legs through an old flash strap held on a roller (well padded - polypad or something) and back up to the other side of the bit, it encourages the long and low and powers up the back muscles, I did this for 10 minutes each way (and still do!) The pessoa is essential later when the horse is strong enough. I did not ride for a few months, just lunged, every day and I mean every day!, once everything was built up I jumped back on which a perfect fitting saddle, the air panels must be adjusted regularly. The horse must be trained to go properly and it must be maintained, this is easier said than done because a horse with kissing spines wants to hollow, a good instructor will help with this, I used a Harbridge training aid to keep encouraging the long and low. Keep it fun though, lots of hacking (though sneak in the request for an outline at regular intervals when the horse is going forward well). My horse was miserable for 18 months until she slowly started picking up, she is now so happy in herself, it takes a long time, even when the pain is gone to get them to accept that there is no more pain, horses have long memories. I could give you our life story and go on for hours but my biggest tips are:
1) Do not use cortisone injections - they just mask pain and make the problem worse, I use bute on the bad days (not very often now)
2) Listen to the horse, if it says no, heed the warning it hurts! I thought my mare was a madam when I bought her, she was not!
3) Do not stable the horse - keep it out all the time! Keep warm though! not difficult with the rugs on the market now.
4) Use cooling gel on the spines after working
5) I found cortaflex helped (my problem had caused DJD)
6) The exercise regime is for life, my mare works 5 - 6 days per week, 2 - 3 times lunging, 1 schooling and the rest hacking.
7) Feed from the floor, do not use haynets
8) Do carrot stretches and massage after riding.
9) Warm up carefully, I do not ask any questions for 10 - 20 minutes until everything is stretched through
10) Keep the riders weight to a minimum, my mare is 16.2 and ID x TB, she carries no more than 10 stone.
11) Take up dressage! I hated it, I've learned to love it!! Kissing spines is exacerpated by bad posture, the horse needs to move correctly if you are to have any success, my horse has the back and bottom of a Grand Prix dressage horse, they need that power.
12) Invest in good support boots for working, the legs are important now more than ever.
Horses can come back to jump with lesser problems but their is usually a height limit, basculing is a problem, it was 2 years before I could canter in an outline on a circle without tantrums - you should see her now!
She still has fun, hunting and lots of fun hacking plus our dressage and the necessary stuff, you just need a strike a balance.
I hope this helps, if you have any specific questions let me know.