Subjective Patient Based Outcome Measures versus Objective Clinical Scales after Revision Total Knee Arthroplasty

Revision of total knee arthroplasty (TKA) is known to be an effective procedure in its ability to relieve pain and improve function. Currently there are numerous instruments for measuring patient outcome. The most popular physician based scale is the Knee Society Score (KSS). Other forms that assess the patient’s perception of quality of life are the Short Form Health Survey (SF-36), the Western Ontario McMaster Arthritis Index (WOMAC), and a 4-Question 4-Point Likert Scale for Patient Satisfaction. The purpose of the study was to determine the correlation of the surgeon’s assessment of outcome after revision surgery to that of the patient’s.