Sleep disturbance is the one of major complaints associated with knee osteoarthritis, and sleep status is one factor that influences quality of life. The present study was designed to assess sleep status in patients undergoing total knee arthroplasty and to identify factors affecting sleep patterns. We performed a prospective study of 112 patients undergoing total knee arthroplasty from June 2011 to February 2012. Data including demographic characteristics (age, gender, BMI, VAS pain scale score, SF 36, level of education, and psychologic comorbidities) and sleep profiles (Nottingham Health Profile – 0 to 100, with 0 indicating good sleep status; Sleep Satisfaction Scale – 0 to 10, with 10 indicating full satisfaction) was collected before and after (six days, two weeks, three months, and six months) total knee arthroplasty.Introduction:
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