i tore my left knee acl 9 years ago
...did a constructive surgery 7 years ago 
... then 2002 i tore it again 
and ever since i only do weight training on the surrounding muscles to keep it stabilsed recently started playing tennis and just learning & loving it
im a right hander and i play a so-so double handed back hand(2bh)...i feel that doing 2bh is stressing my left knee more...at times my knee 'will bulge with fluids' (dont get me wrong) like inflame but not swollen as the fluids restrict my knee movement... should i go for the corrective surgery 2nd time, or should i change to a single backhand, or do non of the above and continue playing table tennis (but its hard to shake off tennis once its in the blood)or other suggestions not mention... really like to hear other opinions besides the orthopedic surgeon who recommended corrective surgery
...
...unfortunately no outdoor activities for 6 months ...no more rugby after that, the funny thing is i got injured while training/playing touch rugby and of all the real rugby games ive played no injuries is as serious this ....that was seven years ago...now its probably much costlier 
...howd he recovered from all of that....and is he still playing tennis ...
