University of Surrey

Test tubes in the lab Research in the ATI Dance Research

The relationship between shoulder osteology and glenohumeral axial rotation.

Humphries, Alexander (2016) The relationship between shoulder osteology and glenohumeral axial rotation. Doctoral thesis, University of Surrey.

[img] Text (Accepted version of PhD thesis)
Thesis_AHumphries_final.pdf - Version of Record
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (14MB)
[img] Text (Copyright Fig 2.1)
Fig2.1_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (312kB)
[img] Text (Copyright Fig 2.4)
Fig2.4_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (311kB)
[img] Text (Copyright Fig 2.5)
Fig2.5_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (311kB)
[img] Text (Copyright Fig 2.6)
Fig2.6_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (311kB)
[img] Text (Copyright Fig 2.7)
Fig2.7_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 29 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (311kB)
[img] Text (Copyright Fig 2.8)
Fig2.8_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 29 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (312kB)
[img] Text (Copyright Fig 2.9)
Fig2.9_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 29 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (311kB)
[img] Text (Copyright Figs 2.10 and 2.11)
Fig2.10and2.11_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (312kB)
[img] Text (Copyright Figs 3.3,3.6 and 6.2)
Fig3.3,6.1and6.2_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 29 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (312kB)
[img] Text (Copyright Fig 4.1)
Fig4.1_Copyright.pdf - Supplemental Material
Restricted to Repository staff only until 30 June 2017.
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (311kB)
[img] Text (Embargo form for thesis)
Embargo form.pdf - Supplemental Material
Restricted to Repository staff only
Available under License Creative Commons Attribution Non-commercial Share Alike.

Download (740kB)

Abstract

The range of motion of the Glenohumeral joint (GHJ) varies between individuals and depends on the position of the humerus. Currently there is limited understanding of the causes of this variation. An improved understanding of the constraints of the GHJ and their influence on the range of motion of the GHJ can be used in the clinical assessment of the shoulder, shoulder rehabilitation and shoulder implant design. This thesis aims to investigate the relationship between the bone geometry of the GHJ and the axial rotational range of the joint. A protocol to measure the maximum internal-external rotation of the GHJ was developed to quantify the axial rotational range of the GHJ during active motion and during passive motion in response to a measured torque. The protocol was used to investigate the effect of plane and elevation angle on the axial rotational range of the GHJ in 30 asymptomatic subjects. The intra-subject, inter-subject, intra-session and inter-session reliabilities of the protocol were quantified. Two-dimensional and three-dimensional bone geometrical parameters acquired from MRI scans of the shoulder were used to describe normal variation in the shape of the GHJ. A linear regression expression was formulated at each humeral position using three geometrical parameters to predict the maximum active and passive internal and external rotations. Segmented MRI scans were used to create a bone model of the subject’s shoulder and collision detection investigated points of bony collision which were likely to limit the subject’s maximum internal and external rotation. Two-dimensional geometrical parameters of the humerus, articular cartilage, glenoid, acromion and coracoid provide an accurate estimate of the maximum internal and external rotation of the GHJ. These parameters and the observed bony constraints from collision detection improve understanding of how the shape of the humerus and scapula at the GHJ affect the range of motion that can be achieved. Different bony constraints at the GHJ lead to changes in the range of motion with humero-thoracic elevation angle and elevation plane; whilst variation in the geometrical parameters between subjects result in differences in the maximum internal and external rotation between individuals.

Item Type: Thesis (Doctoral)
Subjects : Kinematics, glenohumeral joint, range of motion, shoulder, axial rotation, active, passive, bone geometry
Divisions : Theses
Authors :
AuthorsEmailORCID
Humphries, Alexanderhumphries.alexander@googlemail.comUNSPECIFIED
Date : 30 June 2016
Funders : Engineering and Physical Sciences Research Council, Department of Mechanical Engineering Sciences at the University of Surrey
Contributors :
ContributionNameEmailORCID
Thesis supervisorShaheen, Aliah F.a.shaheen@surrey.ac.ukUNSPECIFIED
Thesis supervisorCirovic, Serges.cirovic@surrey.ac.ukUNSPECIFIED
Depositing User : Alexander Humphries
Date Deposited : 12 Jul 2016 08:02
Last Modified : 12 Jul 2016 08:02
URI: http://epubs.surrey.ac.uk/id/eprint/810969

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800