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Evaluation of Functional and Biomechanical Outcome by Shear-wave Elastography in the Short to Intermediate Follow-up After Arthroscopic Rotator Cuff Repair
Sponsor: University Hospital, Basel, Switzerland
Summary
This exploratory project will evaluate the biomechanical and functional intermediate-term outcome (2 to 5 years) after arthroscopic rotator cuff repair (ARCR) with modern non-invasive ultrasound techniques (especially shear wave elastography (SWE)), standardized physical examinations and patient-reported outcomes. It is to evaluate the biomechanical properties of tendons and muscles of the rotator cuff, as well as the biceps muscle after ARCR and to compare elasticity and structural properties to the healthy contralateral side.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
75
Start Date
2022-12-22
Completion Date
2025-07
Last Updated
2025-05-20
Healthy Volunteers
No
Conditions
Interventions
Ultrasound (US) examination
Shear-Wave Elastography (SWE) measurements of operated shoulder (quality, elasticity of repaired tendon) compared to healthy contralateral side. Parameters documented by regular US: Diameter of repaired tendon/ tendon thickness (mm), Rotator cuff muscle fatty infiltration (Grade 0-4), Signs of suture cut-through (yes \| no), Signs of anchor displacement and location (lateral\|medial row), Location of defect (at the foot print\|medial cuff failure), Status of long biceps tendon (intact\|in continuity\|defect). Tissue elasticity measured by SWE in longitudinal orientation (in passive state and with active tension): Trapezius and Deltoid muscle: uninjured superficial muscle for individual patient muscle quality, SSP muscle and tendon: anterior and posterior part, SSC muscle and tendon: cranial and caudal part, ISP muscle and tendon, Biceps muscle and tendon: native (intraarticular) or subpectoral tenodesis (extraarticular)
Clinical examination
Clinical examination for shoulder range of motion and strength measurement
Locations (1)
University Hospital Basel, Department of Orthopaedic and Trauma surgery
Basel, Switzerland