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 |
|---|---|
| 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 |
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Keywords
- ACL lesion
- Arthrometer
- KIN-Nav
- Knee laxity
- Navigation systems
- Rolimeter
ASJC Scopus subject areas
- Computer Science Applications
- Health Informatics
Cite this
Reliability of a navigation system for intra-operative evaluation of antero-posterior knee joint laxity. / Lopomo, Nicola; Bignozzi, Simone; Martelli, Sandra; Zaffagnini, Stefano; Iacono, Francesco; Visani, Andrea; Marcacci, Maurilio.
In: Computers in Biology and Medicine, Vol. 39, No. 3, 03.2009, p. 280-285.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reliability of a navigation system for intra-operative evaluation of antero-posterior knee joint laxity
AU - Lopomo, Nicola
AU - Bignozzi, Simone
AU - Martelli, Sandra
AU - Zaffagnini, Stefano
AU - Iacono, Francesco
AU - Visani, Andrea
AU - Marcacci, Maurilio
PY - 2009/3
Y1 - 2009/3
N2 - 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.
AB - 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.
KW - ACL lesion
KW - Arthrometer
KW - KIN-Nav
KW - Knee laxity
KW - Navigation systems
KW - Rolimeter
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U2 - 10.1016/j.compbiomed.2009.01.001
DO - 10.1016/j.compbiomed.2009.01.001
M3 - Article
VL - 39
SP - 280
EP - 285
JO - Computers in Biology and Medicine
JF - Computers in Biology and Medicine
SN - 0010-4825
IS - 3
ER -