Early Postoperative Pain and Its Risk Factors in Patients Undergoing Total Knee Arthroplasty Under the ERAS Protocol

A notable proportion of TKA patients under ERAS still experience moderate-to-severe early postoperative pain. This pain is independently associated with longer tourniquet time, higher preoperative anxiety, thinner quadriceps, and lower preoperative KSS. These factors are valuable for predicting pain, enabling early targeted interventions to minimize its occurrence and promote recovery.