Hello. , nice explanation of ur problem..
Since u have multiple joints involved n post operation case.., u'll require atleast 1-1.5 months supervised dedicated physiotherapy,
In Physiotherapy also , u have to take active, active- assisted, passive exercises
For pain n stiffness u can take paraffin wax bath, whirlpool pool bath, electrical stimulation, etc.., all this modalities use depends upon wound healing status..
Also beside physiotherapy, u have to do a lot of homework in the form of exercises
Next Steps
meet a experienced physiotherapist..
Health Tips
have patience n start physiotherapy at the earliest...
tc..