Postoperative Biceps Strength and Electromyographic Activity After Proximal Biceps Tenotomy Versus Tenodesis in Patients With Arthroscopic Rotator Cuff Tear Repair
NCT ID: NCT04393662
Last Updated: 2022-12-12
Study Results
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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COMPLETED
16 participants
OBSERVATIONAL
2019-11-25
2020-03-05
Brief Summary
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Detailed Description
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Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Tenodesis group
Tenodesis as surgical treatment option for a lesion of the long head of the biceps tendon (LHBT)
Measurement of Muscle strength using a dynamometer
Muscle strength will be measured in the elbow bilaterally using a dynamometer (Biodex System 4 Pro: Biodex Medical Systems, Shirley, NY, USA). Supination tests will be performed with the forearm in neutral position, 60° pronation and 60° supination. The elbow will be in 90° flexion, and the shoulder in 45° flexion. Constant pressure is applied to lever of device for 3 to 5 seconds. Maximum torque will be recorded automatically. For each position, three repetitions of 3s (to 5s) contractions will be performed with a break of 15 (or 30s) between the repetitions. There will be an additional break of 2 minutes between measurements of the supination strength in the different positions. This parameter will be analysed regarding asymmetry between both limbs.
Isometric endurance of forearm supination will be measured in neutral forearm. Flexion tests will be carried in the same setting as for supination. Flexion tests will be performed with the elbow in 90, 45 and 0° of flexion.
Range of motion clinical measurement (shoulder and elbow)
The range of motion parameters (degree) of both shoulders and elbows will be documented. The circumference of the arm will be measured on the line between the medial acromion and the cubital fossa at 1/3 from the cubital fossa
Electromyography (EMG)
Electromyographic (EMG) data will be collected using a wireless EMG system (myon AG, Schwarzenberg, Switzerland). Surface electrodes will be placed bilaterally on biceps and triceps following the guidelines of the SENIAM project (Surface ElectroMyoGraphy for the Non-Invasive Assessment of Muscles)
Tenotomy group
Tenotomy as surgical treatment option for a lesion of the long head of the biceps tendon (LHBT)
Measurement of Muscle strength using a dynamometer
Muscle strength will be measured in the elbow bilaterally using a dynamometer (Biodex System 4 Pro: Biodex Medical Systems, Shirley, NY, USA). Supination tests will be performed with the forearm in neutral position, 60° pronation and 60° supination. The elbow will be in 90° flexion, and the shoulder in 45° flexion. Constant pressure is applied to lever of device for 3 to 5 seconds. Maximum torque will be recorded automatically. For each position, three repetitions of 3s (to 5s) contractions will be performed with a break of 15 (or 30s) between the repetitions. There will be an additional break of 2 minutes between measurements of the supination strength in the different positions. This parameter will be analysed regarding asymmetry between both limbs.
Isometric endurance of forearm supination will be measured in neutral forearm. Flexion tests will be carried in the same setting as for supination. Flexion tests will be performed with the elbow in 90, 45 and 0° of flexion.
Range of motion clinical measurement (shoulder and elbow)
The range of motion parameters (degree) of both shoulders and elbows will be documented. The circumference of the arm will be measured on the line between the medial acromion and the cubital fossa at 1/3 from the cubital fossa
Electromyography (EMG)
Electromyographic (EMG) data will be collected using a wireless EMG system (myon AG, Schwarzenberg, Switzerland). Surface electrodes will be placed bilaterally on biceps and triceps following the guidelines of the SENIAM project (Surface ElectroMyoGraphy for the Non-Invasive Assessment of Muscles)
Interventions
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Measurement of Muscle strength using a dynamometer
Muscle strength will be measured in the elbow bilaterally using a dynamometer (Biodex System 4 Pro: Biodex Medical Systems, Shirley, NY, USA). Supination tests will be performed with the forearm in neutral position, 60° pronation and 60° supination. The elbow will be in 90° flexion, and the shoulder in 45° flexion. Constant pressure is applied to lever of device for 3 to 5 seconds. Maximum torque will be recorded automatically. For each position, three repetitions of 3s (to 5s) contractions will be performed with a break of 15 (or 30s) between the repetitions. There will be an additional break of 2 minutes between measurements of the supination strength in the different positions. This parameter will be analysed regarding asymmetry between both limbs.
Isometric endurance of forearm supination will be measured in neutral forearm. Flexion tests will be carried in the same setting as for supination. Flexion tests will be performed with the elbow in 90, 45 and 0° of flexion.
Range of motion clinical measurement (shoulder and elbow)
The range of motion parameters (degree) of both shoulders and elbows will be documented. The circumference of the arm will be measured on the line between the medial acromion and the cubital fossa at 1/3 from the cubital fossa
Electromyography (EMG)
Electromyographic (EMG) data will be collected using a wireless EMG system (myon AG, Schwarzenberg, Switzerland). Surface electrodes will be placed bilaterally on biceps and triceps following the guidelines of the SENIAM project (Surface ElectroMyoGraphy for the Non-Invasive Assessment of Muscles)
Eligibility Criteria
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Inclusion Criteria
* 1-4 years postoperative
* Written informed consent
Exclusion Criteria
* Previous biceps injury and or operation
* Contralateral biceps injury
* Neurological disorders potentially affecting upper extremity muscle strength.
18 Years
ALL
No
Sponsors
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University Hospital, Basel, Switzerland
OTHER
Responsible Party
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Principal Investigators
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Andreas Mueller, PD Dr. med.
Role: PRINCIPAL_INVESTIGATOR
Orthopädie/Traumatologie University Hospital Basel
Locations
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Orthopädie/Traumatologie University Hospital Basel
Basel, , Switzerland
Countries
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Other Identifiers
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2019-02004; ch20Taha
Identifier Type: -
Identifier Source: org_study_id
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