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Outcome measures that reflect patient functioning in a variety of health domains are critical in evaluating the effectiveness of cartilage repair studies and in monitoring the progress of individual patients. Although a number of measures can be identified from the literature, choosing the most appropriate measure requires an understanding of psychometrics.(More)
Studies of test-retest reliability for health-related quality of life instruments have used varying intervals between test administrations. There is no evidence available to aid in the selection of the time interval between questionnaire administrations for a study of test-retest reliability for health status instruments. We compared the test-retest(More)
Clinimetrics and psychometrics, two accepted methods for developing multiitem health measurement scales, have fundamentally different aims and methods that have seldom been compared and never prospectively. The purpose of this study was to determine whether these two methodologies provided comparable scales in the development of an upper extremity(More)
Context: Anterior cruciate ligament (ACL) reconstruction rehabilitation has evolved over the past 20 years. This evolution has been driven by a variety of level 1 and level 2 studies. Evidence Acquisition: The MOON Group is a collection of orthopaedic surgeons who have developed a prospective longitudinal cohort of the ACL reconstruction patients. To(More)
PURPOSE Lower extremity alignment is an important consideration prior to cartilage surgery and/or osteotomy about the knee. This is measured on full length standing hip to ankle radiographs, which has traditionally been done using hard copy radiographs. However, the advent of PACS (Picture Archiving and Communication Systems) has allowed these measurements(More)
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Patients' ratings of the severity and importance of items are often used to select items for health status instruments. The purpose of this study was to compare six different methods of combining severity-importance ratings. Two different patient groups separately rated the importance and severity of their complaints; (i) 76 patients with upper-extremity(More)