Novel technique for evaluation of knee function continuously through the range of flexion

Journal of Biomechanics
Kevin M BellRichard E Debski

Abstract

Previous research has utilized robots to examine joint kinematics and in situ forces in response to loads applied at discrete flexion angles (static method). Recently, studies have applied loads continuously throughout flexion (continuous flexion method). However, the joint kinematics resulting from each of these methods have not been directly compared. Therefore, the objective of this study was to utilize a robotic testing system to compare kinematics and in situ forces of porcine knees in response to 89 N of anterior tibial load and 4 Nm of internal tibial torque between the static method (loads applied at 30°, 45°, 60°, and 75° of flexion) and the continuous flexion method (measured continuously from 30-75° of flexion) for both the anterior cruciate ligament (ACL) intact and ACL deficient (ACLD) knees. When anterior tibial load was applied the average differences in anterior tibial translation between the two methods for the intact state was 0.5±0.0 mm and for the ACLD state was 0.3±0.2 mm. The difference in the in situ forces in the ACL was 1.6±0.9 N. When internal tibial torque was applied the average differences in the resultant internal tibial rotation for the intact state was 0.9±0.4° and for the ACLD state was 1.0±0.5°...Continue Reading

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Citations

May 7, 2016·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Fabio V ArillaVolker Musahl
Dec 10, 2016·The American Journal of Sports Medicine·Daniel GuentherRichard E Debski
May 2, 2017·The American Journal of Sports Medicine·Daniel GuentherRichard E Debski
Oct 5, 2017·The Journal of Bone and Joint Surgery. American Volume·Daniel GuentherVolker Musahl
Jan 6, 2017·Journal of Biomechanical Engineering·Richard E DebskiHiromichi Fujie
Jan 22, 2020·Journal of Biomechanical Engineering·Rohit BadidaJoseph J Crisco
Aug 8, 2017·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Kevin M BellRichard E Debski
Nov 10, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·João V NovarettiVolker Musahl
Feb 15, 2020·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·João V NovarettiBryson P Lesniak

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