Related Experiment Video
Updated: Jul 18, 2026
In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
Validation of a new protocol for navigated intraoperative assessment of knee kinematics
Sandra Martelli1, Nicola Lopomo, Simone Bignozzi
1Laboratorio di Biomeccanica, Istituti Ortopedici Rizzoli, via di Barbiano, 1/10, Bologna (BO) 40136, Italy. s.martelli@biomec.ior.it
Background:
This study describes a novel method for accurate evaluations of knee kinematics during arthroscopic reconstructions of anterior cruciate ligament (ACL).
Methods:
Quantitative evaluation of knee stability was estimated by experimental validation on 30 volunteers and by statistical analysis of test repeatability.
Results:
Proposed method present short learning time, is minimally invasive and thus suitable for arthroscopic techniques. Computed laxity showed a repeatability of 1.5 degrees for varus-valgus, 3 degrees for internal-external, and 2mm for antero-posterior tests.
Conclusions:
This method represents a reliable quantification of knee kinematics in surgery, able to improve present intra-operative assessment of knee stability.
