Forces acting on the clavicle during shoulder abduction, forward humeral flexion and activities of daily living.
Activities of Daily Living
Biomechanical Phenomena
Clavicle
/ physiology
Humans
Humerus
Imaging, Three-Dimensional
Ligaments
/ physiology
Ligaments, Articular
/ physiology
Male
Middle Aged
Movement
Range of Motion, Articular
Shoulder
Shoulder Joint
/ physiology
Stress, Mechanical
Tomography, X-Ray Computed
Biomechanics
Clavicle
Delft Shoulder and Elbow Model
Forces
Simulation
Journal
Clinical biomechanics (Bristol, Avon)
ISSN: 1879-1271
Titre abrégé: Clin Biomech (Bristol, Avon)
Pays: England
ID NLM: 8611877
Informations de publication
Date de publication:
10 2019
10 2019
Historique:
received:
11
11
2018
revised:
06
06
2019
accepted:
01
07
2019
pubmed:
16
7
2019
medline:
21
7
2020
entrez:
15
7
2019
Statut:
ppublish
Résumé
The forces acting on the human clavicle in vivo are difficult if not impossible to measure. The goal of this study is to quantify the forces acting on the human clavicle during shoulder abduction, forward humeral elevation and three activities of daily living using the Delft Shoulder and Elbow Model. The Delft Shoulder and Elbow Model and a computed tomography scan of a clavicle were used to calculate the forces and moments acting on the entire clavicle and on three planes within the middle third of the clavicle during the simulated movements. The largest resultant force simulated across the clavicle was 126 N during abduction. Maximum resultant moments of 2.4 Nm were identified during both abduction and forward humeral elevation. The highest forces in the middle third of the clavicle were of a compressive nature along the longitudinal axis of the clavicle, increasing to 97 N during forward humeral elevation and 91 N during abduction. Forces in opposite direction along the y-axis were identified on either side of the conoid ligament. The three simulated activities of daily living had similar ranges of forces and moments irrespective of the sagittal plane in which these activities were performed. Peak forces occurred at different locations on the middle third of the clavicle during different movements. The results create an understanding of the forces and their distribution across the clavicle during activities of daily living. These data may be helpful in the development of clavicular fixation devices. Biomechanical study.
Sections du résumé
BACKGROUND
The forces acting on the human clavicle in vivo are difficult if not impossible to measure. The goal of this study is to quantify the forces acting on the human clavicle during shoulder abduction, forward humeral elevation and three activities of daily living using the Delft Shoulder and Elbow Model.
METHODS
The Delft Shoulder and Elbow Model and a computed tomography scan of a clavicle were used to calculate the forces and moments acting on the entire clavicle and on three planes within the middle third of the clavicle during the simulated movements.
FINDINGS
The largest resultant force simulated across the clavicle was 126 N during abduction. Maximum resultant moments of 2.4 Nm were identified during both abduction and forward humeral elevation. The highest forces in the middle third of the clavicle were of a compressive nature along the longitudinal axis of the clavicle, increasing to 97 N during forward humeral elevation and 91 N during abduction. Forces in opposite direction along the y-axis were identified on either side of the conoid ligament. The three simulated activities of daily living had similar ranges of forces and moments irrespective of the sagittal plane in which these activities were performed.
INTERPRETATION
Peak forces occurred at different locations on the middle third of the clavicle during different movements. The results create an understanding of the forces and their distribution across the clavicle during activities of daily living. These data may be helpful in the development of clavicular fixation devices.
LEVEL OF EVIDENCE
Biomechanical study.
Identifiants
pubmed: 31302493
pii: S0268-0033(18)30950-1
doi: 10.1016/j.clinbiomech.2019.07.001
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
79-86Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.