Patient-related outcomes were originally designed to measure outcomes in clinical studies. They were not developed to predict outcomes, however, different studies showed close association between values achieved preoperatively and postoperative outcomes. The aim of the present trial is to identify patients with satisfactory and unsatisfactory outcomes after joint replacement and to investigate whether there are any potential predicting potential in preoperative results of the patient-related outcomes and if there exist other predicting factors for functional recovery or treatment failure after joint replacement surgery.
Study Type
OBSERVATIONAL
Enrollment
1,000
Routinely performed hip- or knee replacement
Ludwik Rydygier Collegium Medicum, Faculty of Health Sciences, Jagiellońska 13/15
Bydgoszcz, Poland
RECRUITINGAssessment of the patients' opinion about their hip. Change over time
Change between the following assessments as measured with the Hip disability and Osteoarthritis Outcome Score (HOOS) in patients undergoing total hip replacement; 0-100 points, worst to best; minimal clinical difference (MCD) = 10 points.
Time frame: 12 months
Assessment of the patients' opinion about their knee. Score change over time
Change between the following assessments as measured with the Knee injury and Osteoarthritis Outcome Score (KOOS) in patients undergoing total knee replacement; 0-100 points, worst to best; minimal clinical difference (MCD) = 10 points.
Time frame: 12 months
Assessment of the quality of life. Score change over time
Results of the generic PROM, the Short Form Health Survey-36 (SF-36) in both, patients undergoing hip and knee replacement; 0-100 points, worst to best.
Time frame: 12 months
Pain intensity. Change over time
Measured with the Visual Analog Scale (VAS); 0-10 points, worst to best.
Time frame: 12 months
Hip abductors muscle strength. Change over time
Determination of the Trendelenburg's sign in patients undergoing total hip replacement in following assessments; positive or negative.
Time frame: 12 months
Range of motion.
Assessment of range of motion in hips and knees, respectively, in following assessments; degrees.
Time frame: 12 months
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