Reliability of patient specific instrumentation in total knee arthroplasty

The aim of this study was to compare the precision between Patient Specific Instrumentation (PSI) and Conventional Instrumentation (CI) as determined intra-operatively by a pinless navigation system. Eighty patients were included in this prospective comparative study and they were divided into two h...

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Bibliographic Details
Published inActa orthopaedica belgica Vol. 81; no. 4; pp. 668 - 672
Main Authors Jennart, Harold, Ngo Yamben, Marie-Ange, Kyriakidis, Theofylaktos, Zorman, David
Format Journal Article
LanguageEnglish
Published Belgium 01.12.2015
Subjects
Aged
Arthroplasty, Replacement, Knee - instrumentation
Equipment Design
Female
Humans
Male
Osteoarthritis, Knee - surgery
Retrospective Studies
Surgery, Computer-Assisted - methods
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Summary:The aim of this study was to compare the precision between Patient Specific Instrumentation (PSI) and Conventional Instrumentation (CI) as determined intra-operatively by a pinless navigation system. Eighty patients were included in this prospective comparative study and they were divided into two homogeneous groups. We defined an original score from 6 to 30 points to evaluate the accuracy of the position of the cutting guides. This score is based on 6 objective criteria. The analysis indicated that PSI was not superior to conventional instrumentation in the overall score (p = 0.949). Moreover, no statistically significant difference was observed for any individual criteria of our score. Level of evidence II.
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ISSN:0001-6462