Hi, I worked for 'probably' the best orthopaedic surgeon in Scotland who vets from all over Scotland & many parts of England refer cases to. Some amazing deformities can be corrected, obviously expense etc comes into it. But before making any decisions How about seeing if your vet could refer you to either Andy Millar at Broadleys Vet Hosp.,Stirling or Glasgow Vet School as both nearer to you. If you want the best of the best John Ferguson at East Neuk Vet Clinic, St. Monans, Fife. Andy Millar & John Ferguson will also 'read' Xrays if your vet sends them and give the best prognosis, costs involved and whether PTS is the kindest. Good luck.