Have you tried putting a 1cm strip of adhesive tape around the legs to make a hobble, leaving the width of the top of the legs plus about 1cm slack? I find this generally works in about 3 days. If it's getting bullied I put it in a cardboard box under the lamp, with its own feed and water, placed so that it can get away from under the lamp if it's too hot. If this doesn't work there's generally another, unseen,, problem with it. I use Semark pliers for culling - handling very gently I put the "blades" between the vertebrae and snap them closed and backwards.