Wow. That's "severe" in compareson to my fellows stifle. My fellow is 21 and his stifle just started to lock, in 2010. It would lock over a fence once in a blue moon.
What I did for him, was I took him to an Equine Lameness Specialist. He did a full bout (2 times) of injections in both of his stifles, a week apart. He injected Iodine into his stifles, and that did a great job.
I couldn't be happier. Rules of a horse with a locking stifle -
- No stall time. Turn out 24/7
- Hill Work
- Cavaletti Work Locking Stifles UFP
My greatest advice is, get the horse to an Equine Lameness Specialist who will beable to assess, palpate and examine the horse and the condition he/she is in. And go from there.