title: Comparison of performance-based and patient-reported measures of function in anterior-cruciate-ligament-deficient individuals.
abstract: There is a dearth of reliable and valid instrumentation that measures disability following injury and/or surgery of the knee joint that is responsive to clinically significant changes over time. The purpose of this investigation was to determine whether performance-based or patient-reported measures of function are more effective in estimating disability in individuals with an anterior-cruciate-ligament (ACL)-deficient knee. Subjective rating of knee function was used as the criterion measure for disability, and selected performance-based and patient-reported measures were used as estimation variables. Twenty-nine individuals with an ACL-deficient knee participated in this investigation. Step-wise regression analysis revealed that the Cincinnati Knee Scale, Lysholm Knee Scale, and hop index were the most effective estimates of disability. The results demonstrate that patient-reported measures are more related to the patient's level of disability in individuals with an ACL-deficient knee. More research is necessary to substantiate these findings.
authors.affiliation: Department of Exercise and Sport Science, Oregon State University, Corvallis 97331-3303, USA.
authors.forename: P A
authors.initials: PA
authors.lastname: Borsa
authors.forename: S M
authors.initials: SM
authors.lastname: Lephart
authors.forename: J J
authors.initials: JJ
authors.lastname: Irrgang
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000503:physiopathology*; D018771:Arthralgia / Q000209:etiology / Q000503:physiopathology*; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D015601:Injury Severity Score; D007537:Isometric Contraction; D007593:Joint Instability / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology*; D007718:Knee Injuries / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology* / Q000534:rehabilitation; D008297:Male; D008875:Middle Aged; D010808:Physical Examination / Q000295:instrumentation / Q000379:methods*; D004856:Postural Balance; D011434:Proprioception / Q000502:physiology; D016059:Range of Motion, Articular; D012044:Regression Analysis; D016353:Self-Examination; D012680:Sensitivity and Specificity