- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05239520
Understanding Control and Mechanisms of Shoulder Instability in FSHD
Understanding Control and Mechanisms of Shoulder Instability in Patients With Facioscapulohumeral Muscular Dystrophy (FSHD)
The aim of this study is to identify factors for shoulder instability in people with Facioscapulohumeral dystrophy (FSHD). FSHD is a non-life limiting condition with symptoms presenting in the second decade of life (Evangelista et al., 2016). Between 2500 to 3000 people are diagnosed with FSHD in the UK and it is the third most common dystrophy. The overall prevalence is 1: 20,000 and on average 52 people are newly diagnosed with FSHD each year (Emery, 1991; Padberg et al., 1995; UK, 2020) As the disease progresses, patients lose the ability to adequately control muscles around the shoulder girdle, possibly contributing to the development of shoulder instability i.e. partial or complete dislocation of the shoulder joint (Bergsma, Cup, Geurts, & De Groot, 2015; Bergsma, Cup, Janssen, Geurts, & de Groot, 2017; Mul et al., 2016). Loss of control around the shoulder is also thought to contribute to pain and a reduced capacity to perform tasks above shoulder height. Additionally, the development of fatigue and chronic pain further limit patient's abilities and engagement with rehabilitation.
If we better understand the mechanisms associated with instability, we can better target physiotherapy interventions to improve rehabilitation. If we identify specific patterns of activity associated with instability, these could be addressed through personalised and improved exercise prescription and rehabilitation. Additionally, we may identify causes of instability for which physiotherapy or exercise programmes may not be appropriate, therefore ensuring patients are referred to the correct service in a timely manner, improving patient outcomes and allocating resources more appropriately.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Shoulder instability in Facioscapulohumeral dystrophy (FSHD) is a significant problem, with over 80% of patients reporting that it affects their ability to perform activities of daily living (Faux-Nightingale , 2021). The underlying mechanisms of shoulder instability in FSHD are not well understood. It is thought that instability at the shoulder subsequently contributes to the development of shoulder pain and progressive loss of function, particularly during tasks performed above head height. Despite a large proportion of patients reporting shoulder instability that affects function, only 50% report engaging in some form of upper limb rehabilitation (Faux-Nightingale , 2021).
Both surgical and nonsurgical interventions are based on a current understanding of the associated mechanisms that may include muscle wasting, weakness, changes to the structure of the muscle tissue or inappropriate muscle coordination (Bergsma et al., 2014). As there is no cure for FSHD, rehabilitation is fundamental in the management of the condition. Overall, rehabilitation strategies are aimed at maintaining existing levels of function, avoiding complications associated with progression of the disease and targeting mechanisms associated with the development of instability. e.g. exercises to improve co-ordination of the shoulder muscles if the source of instability is dysfunctional muscle control.
Rehabilitation in patients with FSHD is complex and it is therefore important that rehabilitation is appropriately targeted. There is limited evidence to support the effectiveness of existing rehabilitation strategies in FSHD. In order for rehabilitation to be appropriately allocated disease mechanisms should be understood. Existing mechanisms of shoulder instability in FSHD are not well understood and may explain why more than 50% of patients are not engaging in any form of upper limb rehabilitation.
Shoulder stability results from complex mechanisms comprising of finely balanced forces in ligaments, muscles and joint surfaces (Ameln, Chadwick, Blana, & Murgia, 2019). Currently, we are unable to capture this complexity to quantify instability during dynamic upper limb tasks performed during clinical assessment and rehabilitation (Marchi, Blana, & Chadwick, 2014). Biomechanical or mathematical modelling of this complex structure can help to understand the mechanisms associated with instability and predict outcomes for surgical and non-surgical interventions (Arnold, Liu, Ounpuu, Swartz, & Delp, 2006; Delp et al., 2007; Laracca, Stewart, Postans, & Roberts, 2014). Loading on internal structures that cannot be measured can also be estimated by this approach.
This project is therefore a fundamental step, in the development of biomechanical models which can ultimately be used to further our understanding of the shoulder, specifically behaviour of the articulating bony surfaces and muscle forces. In this application we hope to identify mechanisms for shoulder instability which may help better inform rehabilitation and surgical decision making in the management of FSHD.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Fraser D Philp, PhD
- Phone Number: 01691 404532
- Email: f.philp@liverpool.ac.uk
Study Contact Backup
- Name: Karen Wilding
- Email: sponsor@liverpool.ac.uk
Study Locations
-
-
Gobowen
-
Oswestry, Gobowen, United Kingdom, SY10 7AG
- Recruiting
- Robert Jones & Agnes Hunt Orthopaedic Hospital
-
Contact:
- Richa Kulshtrestha
- Phone Number: 01691 404378
- Email: richakulshrestha@nhs.net
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
People affected by FSHD
Inclusion Criteria:
Stratified groups
- Able to lift arms above shoulder height (n=3)
- Unable to lift arms above shoulder height (n=2)
- Post Scapulothoracic shoulder arthrodesis (n=2)
- Diagnosed with FSHD
- Aged 18 years and older
Exclusion Criteria:
- Recent trauma to the shoulder within the last 3 months on the arm being assessed that has not resolved
- Recent surgery to the thorax or upper limb in the last 6 months
- Previous history of fracture to the shoulder joint being assessed
- Co-existing neurological pathologies or additional musculoskeletal injuries to the upper limb being assessed
Age Matched Controls
Inclusion Criteria
- People aged 18 years and older
Exclusion Criteria:
- Any previous presentation to a health care professional with a diagnosis of shoulder instability
- Previous shoulder injury within the last 3 months on the arm being assessed that has not resolved
- Any co-existing neurological pathologies or deficits
- Any previous surgical intervention on the arm being assessed
- Currently undergoing or awaiting medical management, diagnostic investigations or rehabilitation on the arm being assessed
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
People affected by FSHD
Participants with a diagnosis of FSHD.
3D movement analysis session including surface electromyography and Ultrasound.
|
Single measurement session of 3D movement analysis with surface electromyography for upper limb movements and ultrasound measurements of upper muscles
|
Age matched control group
Participants without a diagnosis of FSHD.
3D movement analysis session including surface electromyography and Ultrasound
|
Single measurement session of 3D movement analysis with surface electromyography for upper limb movements and ultrasound measurements of upper muscles
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Kinematic features of movement: joint angles (degrees)
Time Frame: Day 1
|
Range of movement values and associated derivatives will be reported for the associated movement tasks.
|
Day 1
|
Kinematic features of movement: displacement (mm)
Time Frame: Day 1
|
Displacement values and associated derivatives will be reported for associated movement tasks.
|
Day 1
|
Kinetic variables related to the movement tasks: Force (Nm)
Time Frame: Day 1
|
Force values for the strength testing, joint contact and muscle force values will be reported for associated movement tasks.
|
Day 1
|
Muscle activity patterns related to the movement tasks: Surface electromyography (mv)
Time Frame: Day 1
|
Muscle activity patterns related to the movement tasks will be reported for associated movement tasks.
|
Day 1
|
Ultrasound imaging: Muscle architecture parameters (mm)
Time Frame: Day 1
|
Muscle architecture parameters where possible (Muscle thickness)
|
Day 1
|
Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Nervous System Diseases
- Pain
- Neurologic Manifestations
- Wounds and Injuries
- Genetic Diseases, Inborn
- Joint Diseases
- Musculoskeletal Diseases
- Muscular Diseases
- Muscular Disorders, Atrophic
- Arthralgia
- Muscular Dystrophies
- Shoulder Pain
- Shoulder Injuries
- Muscular Dystrophy, Facioscapulohumeral
- Neuromuscular Diseases
Other Study ID Numbers
- UoL001656
- RPG185 (Other Grant/Funding Number: The Orthopaedic Institute Ltd)
- Robert Jones & Agnes Hunt site (Other Identifier: RL1 811)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Supporting Information Type
- Study Protocol
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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