I've had a mystery hind end thing with my mare for the last year, since I adopted her. Here is one of the threads: Conformation problem in hind end?
I call her 'Noodle Legs'. She has been seen by vets, chiro, massage therapist x 3, trainers, farriers and horse friends. She reminds me of the scare crow on the Wizard of Oz at times. Her hind end seems like it needs to be tightened up...like she is loose. Some say she may be gaited. I had another trainer look at her while I rode her the other day that was scratching her head saying she thought maybe she was gaited.
She is only 3, just started under saddle and is a draft cross. So, many variables here....still growing, unbalanced and trying to figure it all out. It seems, when I take her on trails leading her, that her stifle may lock on the down hill. Her jog is soooooo easy to sit and relaxed, but when she comes down to a walk, she swings out her hip or something dramatic. After a lope, she may trip all over herself coming down to a trot or walk. At the trot, she seems to criss cross her legs. Sometimes she does well, other times, she is a mess.
So weird. Please keep an update on any progress. I'd be very interested in your findings.