title: Measuring the success of treatment in patient terms.
abstract: Measuring the success of major surgeries such as total hip and total knee replacement is important for both case selection and public policy. Patients, purchasers, and practitioners must choose among clinical scoring systems, health status measures, and patient satisfaction ratings to monitor performance and ensure appropriate use of costly procedures. The present study compares results from the Medical Outcomes Study Short Form 36 (SF-36) Health Status Survey and clinical scoring systems to direct patient ratings of success. Data come from a study of 128 total knee-replacement procedure and 211 total hip replacements. Analyses indicate that for both hip and knee patients, success is related closely to posttreatment physical function and bodily pain. Patient ratings of success also are related to the clinical scores used by physicians. Success is related less to change from pretreatment function for knee patients than for hip patients. Although patient ratings of success are generally consistent with other outcome measures, their relationship to patient expectations, satisfaction, and attributions need to be understood before they can become a useful tool for performance monitoring and case selection.
authors.affiliation: Center for Outcomes Research and Education, Sisters of Providence Health System in Oregon, Portland 97225, USA.
authors.forename: K B
authors.initials: KB
authors.lastname: Bayley
authors.forename: M R
authors.initials: MR
authors.lastname: London
authors.forename: G L
authors.initials: GL
authors.lastname: Grunkemeier
authors.forename: D J
authors.initials: DJ
authors.lastname: Lansky
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D005260:Female; D006304:Health Status; D006622:Hip Prosthesis / Q000523:psychology; D006801:Humans; D007720:Knee Prosthesis / Q000523:psychology; D008297:Male; D017063:Outcome Assessment, Health Care; D010146:Pain; D017060:Patient Satisfaction; D011184:Postoperative Period