Abstract
Background: The purpose of this study was to investigate about the reliability of measuring antero-posterior laxity within-subjects for in-vivo studies using a navigation system. Methods: The analysis was performed by enroling 60 patients undergoing anterior cruciate ligament ACL reconstruction, and assessing AP laxity during the Lachman and drawer tests. Results: For the navigation system standard deviation for intra-trial measures was 0.7 mm, thus the intra-trial repeatability coefficient was 2.2 mm; standard deviation for intra-trial measure was 1.2 mm, while the reference inter-trial repeatability coefficient between expert surgeons was 3.4 mm. Conclusions: In conclusion, this study suggests that KIN-Nav may represent a new method to measure and document AP laxity intra-operatively with improved accuracy and test the effect of surgical treatment in-vivo with higher sensitivity than in the past and this study quantify its reliability for within-subjects studies performed by a single expert surgeon.
Original language | English |
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Pages (from-to) | 280-285 |
Number of pages | 6 |
Journal | Computers in Biology and Medicine |
Volume | 39 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2009 |
Keywords
- ACL lesion
- Arthrometer
- KIN-Nav
- Knee laxity
- Navigation systems
- Rolimeter
ASJC Scopus subject areas
- Computer Science Applications
- Health Informatics