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.
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.
Authors: Volker Musahl; Sebastian Kopf; Stephen Rabuck; Roland Becker; Willem van der Merwe; Stefano Zaffagnini; Freddie H Fu; Jon Karlsson Journal: Knee Surg Sports Traumatol Arthrosc Date: 2011-12-30 Impact factor: 4.342
Authors: E Monaco; A Ferretti; L Labianca; B Maestri; A Speranza; M J Kelly; C D'Arrigo Journal: Knee Surg Sports Traumatol Arthrosc Date: 2011-08-30 Impact factor: 4.342
Authors: David Sundemo; Eduard Alentorn-Geli; Yuichi Hoshino; Volker Musahl; Jón Karlsson; Kristian Samuelsson Journal: Curr Rev Musculoskelet Med Date: 2016-06
Authors: S Zaffagnini; C Signorelli; N Lopomo; T Bonanzinga; G M Marcheggiani Muccioli; S Bignozzi; A Visani; M Marcacci Journal: Knee Surg Sports Traumatol Arthrosc Date: 2011-06-28 Impact factor: 4.342