Sequential 3D analysis of patellofemoral kinematics from biplanar x-rays: In vitro validation protocol.
Article dans une revue avec comité de lecture
Auteur
Date
2015Journal
Revue de Chirurgie Orthopédique et TraumatologiqueRésumé
Background: Developing criteria for assessing patellofemoral kinematics is crucial to understand, eval-uate, and monitor patellofemoral function. The objective of this study was to assess a sequential 3Danalysis method based on biplanar radiographs, using an in vitro protocol.Hypothesis: Biplanar radiography combined with novel 3D reconstruction methods provides a reliableevaluation of patellofemoral function, without previous imaging.Material and methods: Eight cadaver specimens were studied during knee flexion cycles from 0◦to60◦induced by an in vitro simulator. The protocol was validated by investigating sequential and con-tinuous motion using an optoelectronic system, evaluating measurement accuracy and reproducibilityusing metallic beads embedded in the patella, and comparing the 3D patellar geometry to computedtomography (CT) images.Results: The differences in position between the sequential and continuous kinematic analyses were lessthan 1 mm and 1◦. The protocol proved reliable for tracking several components of knee movements,including patellar translations, flexion, and tilt. In this analysis, uncertainty was less than 2 mm for trans-lations and less than 3◦for rotations, except rotation in the coronal plane. For patellar tilt, uncertaintywas 5◦. Mean difference in geometry was 0.49 mm.Discussion: Sequential analysis results are consistent with continuous kinematics. This analysis methodprovides patellar position parameters without requiring previous CT or magnetic resonance imaging.A clinical study may deserve consideration to identify patellofemoral kinematic profiles and positioncriteria in vivo.Level of evidence: IV, experimental study.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureDAGNEAUX, Louis; THOREUX, Patricia; EUSTACHE, Boris; CANOVAS, François; SKALLI, Wafa (Elsevier BV, 2015)Introduction : Caractériser la fonction fémoropatellaire à l’aide de critères cinématiques est essentiel à sa compréhension, à son évaluation et à son suivi. Le but était d’évaluer une méthode d’analyse 3D séquentielle par ...
-
Chapitre d'ouvrage scientifiqueGERMAIN, François; ROCHCONGAR, Goulven; THOREUX, Patricia; SKALLI, Wafa; ROUCH, Philippe; ROHAN, Pierre-Yves; PILLET, Helene (Springer International Publishing, 2016)The management of knee instability is a complex problem in orthopedic surgery. To comprehensively assess the biomechanical role of the knee joint and to investigate various aspects of knee mechanics, several Finite Element ...
-
Article dans une revue avec comité de lectureLANGLOIS, Karine; LAVASTE, François; ROCHCONGAR, Goulven; THOREUX, Patricia; SKALLI, Wafa; ROUCH, Philippe; PILLET, Helene (Elsevier Masson, 2018)Background: Several methods can be used to assess joint kinematics going from optoelectronic motion analysis to biplanar fluoroscopy. The aim of the present work was to evaluate the reliability of the use of biplane ...
-
Article dans une revue avec comité de lectureLANGLOIS, Karine; LAVASTE, François; ROCHCONGAR, Goulven; THOREUX, Patricia; SKALLI, Wafa; ROUCH, Philippe; PILLET, Helene (Taylor & Francis, 2015)1. Introduction The EOS imaging system produces two simultaneous X-rays of a subject. Both views are used for the generation of a sub- ject-specific 3D skeletal model. This model then allows to obtain quantitative ...
-
Article dans une revue avec comité de lectureBERGAMINI, Elena; PILLET, Helene; HAUSSELLE, Jérôme; THOREUX, Patricia; GUÉRARD, Sandra; CAMOMILLA, Valentina; CAPPOZZO, Aurelio; SKALLI, Wafa (Elsevier, 2011)When using skin markers and stereophotogrammetry for movement analysis, bone pose estimation may be performed using multi-body optimization with the intent of reducing the effect of soft tissue artefacts. When the joint ...