HI,

As a Veterinary Technician we actually performed stringhalt surgeries at Chambers Prairie Vet hospital and also at Paycheck. Horses with stringhalt can never be "cured" without surgery and the usefulness of a horse with stringhalt is minimal to negligible. Mares are usually kept as broodmares.
After surgery there is a lengthy and intensive post op rehabilitation that can go into the span of years. Most stringhalt horses are put down or just adorn pastures.