title: The Oxford hip and knee outcome questionnaires for arthroplasty.
abstract: The Oxford hip and knee scores are used to measure the outcome after primary total hip and knee replacement. We propose a new layout for the instrument in which patients are always asked about both limbs. In addition, we have defined an alternative scoring method which accounts for missing data. Over a period of 4.5 years, 4086 (1423 patients) and 5708 (1458 patients) questionnaires were completed for hips and knees, respectively. The hip score had a pre-operative median of 70.8 (interquartile range (IQR) 58.3 to 81.2) decreasing to 20.8 (IQR 10.4 to 35.4) after one year. The knee score had a pre-operative median of 68.8 (IQR 56.2 to 79.2) decreasing to 29.2 (IQR 14.6 to 45.8). There was no further significant change in either score after one year. As a result of the data analysis, we suggest that the score percentiles can be used as a standard for auditing patients before and after operation.
authors.affiliation: Royal Orthopaedic Hospital, Birmingham, England. p.b.pynsent@bham.ac.uk
authors.forename: P B
authors.initials: PB
authors.lastname: Pynsent
authors.forename: D J
authors.initials: DJ
authors.lastname: Adams
authors.forename: S P
authors.initials: SP
authors.lastname: Disney
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods; D019645:Arthroplasty, Replacement, Knee / Q000379:methods; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008485:Medical Audit; D008875:Middle Aged; D011446:Prospective Studies; D011795:Surveys and Questionnaires / Q000592:standards; D016896:Treatment Outcome