Volumetric definition of shoulder range of motion and its correlation with clinical signs of shoulder hyperlaxity. A motion capture study.

Mickael Ropars 1 Armel Crétual 2, 3 Hervé Thomazeau 1 Rajiv Kaila 1 Isabelle Bonan 4, 5, 2
3 MIMETIC - Analysis-Synthesis Approach for Virtual Human Simulation
UR2 - Université de Rennes 2, Inria Rennes – Bretagne Atlantique , IRISA-D6 - MEDIA ET INTERACTIONS
4 VisAGeS - Vision, Action et Gestion d'informations en Santé
INSERM - Institut National de la Santé et de la Recherche Médicale : U746, Inria Rennes – Bretagne Atlantique , IRISA-D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
Abstract : Background Diagnosis of shoulder hyperlaxity (SHL) is assessed using clinical signs. Quantification of SHL remains however difficult since no quantitative definition has been yet described. Using a motion capture system (MCS), the aim of the present study was to categorize SHL through a volumetric MCS-­‐based definition and to compare this volume with clinical signs used for SHL diagnosis. Method 23 subjects were examined with passive and active measurement of their Shoulder Ranges Of Motion (SROM), and then examined with a MCS protocol allowing to compute the Shoulder Configuration Space Volume (SCSV). Clinical data of SHL were assessed using sulcus sign, external rotation with arm at the side (ER1) >85° in a standing position, external rotation >90° in a lying position and Beighton scale for general joint laxity. Active and passive ER1, EIR2 (sum of external and internal rotation at 90° of abduction), flexion-­‐extension and abduction were also measured and correlated to SCSV. Results Except from Sulcus Sign, SCSV was significantly correlated with all clinical signs used for SHL. Passive examination of the different SROM was better correlated to SCSV than active one. In passive examination, the worst SROM was ER1 (R = 0.36, p = 0.09) whereas EIR2, flexion and abduction were highly correlated to SCSV (p<0.01). Conclusion SCSV appears to be an appealing tool for evaluating SHL regarding its correlations with clinical signs used for SHL diagnosis. Sulcus sign and ER1>85° in a standing position appear less discriminating and should be replaced by EIR2 measurement for SHL diagnosis.
Type de document :
Article dans une revue
Journal of Shoulder and Elbow Surgery, Elsevier, 2015, 24 (2), pp. 310-316. 〈10.1016/j.jse.2014.06.040〉
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https://hal.inria.fr/hal-01058988
Contributeur : Armel Crétual <>
Soumis le : vendredi 29 août 2014 - 09:05:16
Dernière modification le : mercredi 16 mai 2018 - 11:24:11

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Mickael Ropars, Armel Crétual, Hervé Thomazeau, Rajiv Kaila, Isabelle Bonan. Volumetric definition of shoulder range of motion and its correlation with clinical signs of shoulder hyperlaxity. A motion capture study.. Journal of Shoulder and Elbow Surgery, Elsevier, 2015, 24 (2), pp. 310-316. 〈10.1016/j.jse.2014.06.040〉. 〈hal-01058988〉

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