I have now visited the vets with my whippet pup and have been advised a low protein adult diet, the plates on the joints have not closed so there is time to right this with diet and not surgery, which is invasive and often unsuccessful.
For those that doubt this form of treatment there is a scientific paper published by K Altunatmaz, S Ozsoy at Istanbul University 2006, Carpal Flexural Deformity that points towards diet being the cause of this problem,it would seem after weaning feeding cows milk was the problem, possibly something that happens in Turkey, I guess we use protein rich pup food