Am considering going the route of a Cunean Tenectomy for my gelding. He is 11 and has a spur on the lower portion of the left hock since birth. The sides of the hock have some fusing but the center is wide open still. Read the discussion on Cunean Tenectomy and was very interesting but would love to hear from people who have had this done. Hock injections last only 4-6 weeks on him.