Hi, thanks for writing to HCM.
Generally, a minimal amount of pain & stiffness
of the thigh musculature will be present in a post TKR case. This usually results due to the formation of adhesions within the quadriceps muscle ( which is generally incised partly as a part of the surgery ) or quadriceps muscle getting adhered to the thigh bone (femur
All the medications and gels will only kill the pain but are not going to resolve the stiffness. So the only way is to undergo vigorous physiotherapy
which will clear the stiffness. Hope this helps