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

Ahram Canadian University

Status: Enrolling

Conditions: Shoulder Pain; Rotator Cuff Injuries; Rotator Cuff Tears

Treatments: Diagnostic Test: Surface Electromyography (sEMG) Assessment

Study type: Observational

Funder types: Other

Identifiers

NCT05946343

012/09978882023

Details and patient eligibility

About

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.

Enrollment: 100 estimated patients

Sex: All

Ages: 18 to 60 years old

Volunteers: No Healthy Volunteers

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.

Trial design

100 participants in 4 patient groups

Small Rotator Cuff Tear Group

Description:

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.

Treatment:

Diagnostic Test: Surface Electromyography (sEMG) Assessment

Medium Rotator Cuff Tear Group

Description:

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

Treatment:

Diagnostic Test: Surface Electromyography (sEMG) Assessment

Large Rotator Cuff Tear Group

Description:

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

Treatment:

Diagnostic Test: Surface Electromyography (sEMG) Assessment

Massive Rotator Cuff Tear Group

Description:

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

Treatment:

Diagnostic Test: Surface Electromyography (sEMG) Assessment