Sorry to hear that your TNR hasn't gone as hoped. It sounds as if you need a good conversation with your GP and probably the Orthopaedic Consultant that is proposing to do the TNR on your other leg. They need to explore why you had a poor outcome from the first surgery and if anything can be done, even at this late stage to improve it. Also, are the same circumstances likely to impact on you again if you decided to go ahead with the second surgery? or could they be mitigated in some way?
I can understand why you are keen to hear from others that have had the same surgery but try not to let other people's experiences, positive or negative, have too much influence on your decision about the proposed surgery, as your clinical circumstances are unique to you as an individual.
Jean Merrilees BSc MRCOT
You can read more of my posts at: https://community.scope.org.uk/categories/ask-an-occupational-therapist