Hello,
Thank you for posting your query at DoctorSpring.com
It looks from your details that your distal radioulnar joint is not unstable.In about two third cases which are not symptomatic the TFCC injury remain asymtomatic for 10 year.So in my opinion you should defer surgery if you no pain on movement at your wrist.
Hope this will help you,
Feel free to discuss further,
Regards.