I have a 13 year old mare that got a wire cut 10 months ago across the back of her pastern. The tendon sheath became infected and it was touch and go for several months. She was on stall rest for about 6 months with an aluminum wedge shoe with the toe cut out. Her HPA has been out of alignment since the infection, and we have been working to get it corrected. She has a slight reverse angle on XR. The vet seems to think with her tendon laxity, that we are doing all we can for her. She is comfortable at a walk, but has significant lameness at a trot. She lands heel first and then her toe hits the ground. Her heels are severely under run from the wedge and tendon laxity. Her frog is bulging and she has lost the collateral grooves. They (vet and farrier) decided to put her back in a flat shoe with rolled toe and extra support at the heels with hopes of getting her to grow more heel where she needs it. I'm not optimistic and I'm worried it will undo what little progress we have made. My farrier seems to be at a loss on what to do for her. We've been working on her for 10 months. My only goal is to keep her sound enough to be a broodmare. I know I've provided limited info, but any suggestions?? How do you grow heel when you have tendon laxity and under run heels???