Rotator Cuff Tear Severity and Scapular and Rotator Cuff Muscle Activation Patterns

NCT ID: NCT05946343

Last Updated: 2023-07-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-07-15

Study Completion Date

2024-01-15

Brief Summary

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Rotator cuff tears are common musculoskeletal injuries that can lead to altered scapular and rotator cuff muscle activation patterns and reduced function. This study aims to investigate the relationship between rotator cuff tear severity and scapular and rotator cuff muscle activation patterns.

The primary objective of this study is to determine whether a relationship exists between the severity of rotator cuff tears and the activation patterns of scapular and rotator cuff muscles. Secondary objectives include:

1. Identifying differences in muscle activation patterns between varying tear sizes.
2. Evaluating the potential of these activation patterns as an indicator for the severity of rotator cuff tears.
3. Assessing the influence of muscle activation patterns on the functional capacity of the affected shoulder.

Detailed Description

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Conditions

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Rotator Cuff Tears Rotator Cuff Injuries Shoulder Pain

Study Design

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Observational Model Type

OTHER

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Small Rotator Cuff Tear Group

The Cofield classification system is a commonly cited classification system for full-thickness rotator cuff tears. It is based on the size of the tear. Small tear: Less than 1 cm.

Surface Electromyography (sEMG) Assessment

Intervention Type DIAGNOSTIC_TEST

Surface electromyography (sEMG) will be used to assess the activation patterns of scapular and rotator cuff muscles during functional tasks, such as shoulder flexion, abduction, and external rotation. The sEMG assessment will be conducted using a wireless sEMG system with a sampling rate of 2000 Hz and a bandwidth of 20-500 Hz. Pre-gelled, disposable, self-adhesive Ag/AgCl electrodes will be placed on the muscle belly according to SENIAM guidelines, with an inter-electrode distance of 20 mm.

Medium Rotator Cuff Tear Group

The Cofield classification system is a commonly cited classification system for full-thickness rotator cuff tears. It is based on the size of the tear. Medium tear: 1-3 cm

Surface Electromyography (sEMG) Assessment

Intervention Type DIAGNOSTIC_TEST

Surface electromyography (sEMG) will be used to assess the activation patterns of scapular and rotator cuff muscles during functional tasks, such as shoulder flexion, abduction, and external rotation. The sEMG assessment will be conducted using a wireless sEMG system with a sampling rate of 2000 Hz and a bandwidth of 20-500 Hz. Pre-gelled, disposable, self-adhesive Ag/AgCl electrodes will be placed on the muscle belly according to SENIAM guidelines, with an inter-electrode distance of 20 mm.

Large Rotator Cuff Tear Group

The Cofield classification system is a commonly cited classification system for full-thickness rotator cuff tears. It is based on the size of the tear. Large tear: 3-5 cm

Surface Electromyography (sEMG) Assessment

Intervention Type DIAGNOSTIC_TEST

Surface electromyography (sEMG) will be used to assess the activation patterns of scapular and rotator cuff muscles during functional tasks, such as shoulder flexion, abduction, and external rotation. The sEMG assessment will be conducted using a wireless sEMG system with a sampling rate of 2000 Hz and a bandwidth of 20-500 Hz. Pre-gelled, disposable, self-adhesive Ag/AgCl electrodes will be placed on the muscle belly according to SENIAM guidelines, with an inter-electrode distance of 20 mm.

Massive Rotator Cuff Tear Group

The Cofield classification system is a commonly cited classification system for full-thickness rotator cuff tears. It is based on the size of the tear. Massive tear: Greater than 5 cm

Surface Electromyography (sEMG) Assessment

Intervention Type DIAGNOSTIC_TEST

Surface electromyography (sEMG) will be used to assess the activation patterns of scapular and rotator cuff muscles during functional tasks, such as shoulder flexion, abduction, and external rotation. The sEMG assessment will be conducted using a wireless sEMG system with a sampling rate of 2000 Hz and a bandwidth of 20-500 Hz. Pre-gelled, disposable, self-adhesive Ag/AgCl electrodes will be placed on the muscle belly according to SENIAM guidelines, with an inter-electrode distance of 20 mm.

Interventions

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Surface Electromyography (sEMG) Assessment

Surface electromyography (sEMG) will be used to assess the activation patterns of scapular and rotator cuff muscles during functional tasks, such as shoulder flexion, abduction, and external rotation. The sEMG assessment will be conducted using a wireless sEMG system with a sampling rate of 2000 Hz and a bandwidth of 20-500 Hz. Pre-gelled, disposable, self-adhesive Ag/AgCl electrodes will be placed on the muscle belly according to SENIAM guidelines, with an inter-electrode distance of 20 mm.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Age between 18 and 60 years.
* Diagnosis of rotator cuff tear confirmed by a qualified orthopedic surgeon.
* MRI scan showing the size of the tear (small, medium, large, or massive).
* Ability to provide informed consent and comply with the study protocol.

Exclusion Criteria

* History of shoulder surgery or other shoulder disorders unrelated to rotator cuff tears.
* Presence of neurological, cardiovascular, or respiratory disorders that could influence muscle activation patterns.
* Contraindications for sEMG assessment, such as skin allergies or infections.
* Inability to perform the required functional tasks due to severe pain or disability.
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ahram Canadian University

OTHER

Sponsor Role lead

Responsible Party

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Mohamed Magdy ElMeligie

Lecturer of Physical Therapy and Director of Electromyography Lab

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Amal Fawzy, Ph.d

Role: STUDY_CHAIR

Faculty of Physical Therapy, Ahram Canadian University

Locations

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Outpatient clinic of faculty of physical therapy, Ahram Canadian University

Al Ḩayy Ath Thāmin, Giza Governorate, Egypt

Site Status RECRUITING

Countries

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Egypt

Central Contacts

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Mohamed M ElMeligie, Ph.d

Role: CONTACT

+201064442032

Facility Contacts

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Mohamed M ElMeligie, Ph.d

Role: primary

01064442032

Other Identifiers

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012/09978882023

Identifier Type: -

Identifier Source: org_study_id

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