Evaluation of Functional and Biomechanical Outcome by Shear-wave Elastography in the Short to Intermediate Follow-up After Arthroscopic Rotator Cuff Repair
University Hospital, Basel, Switzerland
75 participants
Dec 22, 2022
OBSERVATIONAL
Conditions
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.
Eligibility
Inclusion Criteria8
- year of surgery between 2015 and 2020
- ARCR surgery in cases of:
- Partial or complete supraspinatus (SSP) tear
- Partial or complete supraspinatus (ISP) tear
- Partial or complete subscapularis (SSC) tear
- Combined SSP, ISP and SSC tear
- with or without biceps tenodesis during same procedure
- able to understand the content of the patient information / consent form and give consent to take part in the study
Exclusion Criteria6
- revision surgery (prior repair of the rotator cuff in the same shoulder)
- postoperative infections
- patients with a language barrier hindering questionnaire completion (either in German, French, Italian or English)
- legal incompetence
- not eligible for Ultrasound (BMI \>35, persistent frozen shoulder)
- Prior surgery or injury of the contralateral shoulder
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Interventions
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 for shoulder range of motion and strength measurement
Locations(1)
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NCT05691374