Predictive validity of the knee society index of severity: A prospective, multicenter cohort study

Compared with primary total knee arthroplasty, revision knee arthroplasties are more complex and account for greater expenditures of health care resources at all stages of the clinical process. The Knee Society Index of Severity (KSIS) was developed to stratify and quantify the severity of knee arth...

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Bibliographic Details
Published in:The Journal of arthroplasty 2004-04, Vol.19 (3), p.322-328
Main Authors: The North American Knee Arthroplasty Revision (N.A.K.A.R.) Study Group, North American Knee Arthroplasty Revision (N.A.K.A.R.) Study Group
Format: Article
Language:English
Subjects:
Aged
arthroplasty
Arthroplasty, Replacement, Knee
Cohort Studies
failed knee
Female
Humans
Intraoperative Period
Knee Prosthesis
Male
outcomes
Predictive Value of Tests
Preoperative Care
Prospective Studies
Prosthesis Failure
Reoperation
Reproducibility of Results
revision
Severity of Illness Index
total knee arthroplasty
validity
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Summary:Compared with primary total knee arthroplasty, revision knee arthroplasties are more complex and account for greater expenditures of health care resources at all stages of the clinical process. The Knee Society Index of Severity (KSIS) was developed to stratify and quantify the severity of knee arthroplasties, and it has proved to be a reliable and valid measure. This article evaluates the ability of the preoperative KSIS to predict intraoperative findings. Thirty-one surgeons from 13 institutions used the KSIS to classify preoperative clinical parameters and radiographs. Preoperatvie KSIS information was compared with intraoperative KSIS findings (reference standard). Unweighed kappa statistics were used to assess correlation. Sixty-three patients (65 cases) met inclusion criteria and were prospectively studied. All feasible comparisons between the preoperative and the intraoperative KSIS revealed statistically significant association, P
ISSN:0883-5403
1532-8406
DOI:10.1016/S0883-5403(03)00261-4