Benefits Benefits of Knee Replacement Reduced joint pain (may be no pain!) Increased movement and mobility for e.g. Walking, stair climbing, etc. Stable Joint. Straight Joint (Correction of deformity) Increased leg strength (if you exercise) Improved quality of life-ability to return to normal activities and pastimes. Restrictions post knee Replacement NO sitting on the floor or squatting, Avoid cross legged sitting beside running, jumping and other high impact activities