The Outcomes of Subject After Total Knee Arthroplasty

Changes of Western Ontario and McMaster Universities Arthritis Index (WOMAC)

The Western Ontario and McMaster Universities Arthritis Index (WOMAC) is widely used in the evaluation of Hip and Knee Osteoarthritis. It is a self-administered questionnaire consisting of 24 items divided into 3 subscales: (I). Pain (5 items): during walking, using stairs, in bed, sitting or lying, and standing upright (II). Stiffness (2 items): after first waking and later in the day (III). Physical Function (17 items): using stairs, rising from sitting, standing, bending, walking, getting in / out of a car, shopping, putting on / taking off socks, rising from bed, lying in bed, getting in / out of bath, sitting, getting on / off toilet, heavy domestic duties, light domestic duties. The assessment was performed at: Baseline: admission date of surgery, discharge from hospital (D/C), 1 month after D/C, 3 months after D/C, 6 months after D/C

Time frame: Baseline: date of surgery (day 0); discharge from hospital (D/C), an average of 1 week; 1 month after D/C; 3 months after D/C; 6 months after D/C

Changes of knee Range of motion (ROM)

Range of motion in bilateral Knee joints

Time frame: Baseline: date of surgery (day 0); discharge from hospital (D/C), an average of 1 week; 1 month after D/C; 3 months after D/C; 6 months after D/C