Patient population or diseaseAfter surgical joint replacement, patients need pain management and analgesia because there is an increased amount of pain and stimuli that are usually not painful suddenly become bothersome (Scholz & Yakch, 2010). For joint rehabilitation to occur, the patient must undergo physiotherapy. This therapy includes strengthening the joint and surrounding muscles. If intolerable pain is present, recovery time may be prolonged and even chronic complications may result. The natural progression is that the amount and intensity of perceived pain varies from patient to patient, but as the incisions heal, the intensity of the pain gradually decreases (Scholz and Yaksh, 2010). “However, some patients experience deep pain or pain referred to the dermatomes corresponding to the operated organ, which persists for months or even years” (Scholz & Yaksh, 2010 p. 512). In the literature, no clear distinction is made in the description of postoperative pain. For example, postoperative pain may occur as a result of worsening of the affected area from exercise, friction, or other manipulation occurring during the postoperative and recovery period (Scholz & Yaksh, 2010). Scholz and Yaksh (2010) ask: "Are the mechanisms responsible for sustained pain the same as those underlying acute postoperative pain, or, in this subgroup of patients, the trauma associated with the procedure does surgery cause different changes in sensory processing? » (Scholz & Yaksh, 2010 p.511) » The postoperative pain examined in this article is that produced following the acute joint rehabilitation process. The goal of this project is...... middle of article ......esthesia Nursing, 25(1), 36-39Scholz, J., & Yaksh, T. (2010). Preclinical research on persistent post-surgical pain: what we don't know, but should start studying. Anesthesiology, 112(3), 511-513Titler, MG, Herr, K., Schilling, ML, Marsh, JL, Xie, X., Ardery, G., Clarke, W. and Everett, L. (2003). Treatment of acute pain in older adults hospitalized for hip fracture: current nursing practices and perceived barriers. Applied Nursing, 16(4), 211-217.Zaslansky, R., Eisenberg, E., Peskin, B., Sprecher, E., Reis, D., Zinman, C. and Brill, S. (2006). Early administration of oral morphine to orthopedic patients after surgery. Journal of Opioid Management, 2(2), 88-92. Zeni Jr, J. (2010). Early postoperative measures predict outcomes at 1 and 2 years after unilateral total knee arthroplasty: importance of contralateral limb strength. Physiotherapy,90(1), 43.