Dynamic Ultrasound in Shoulder Impingement

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

37 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-03-01

Study Completion Date

2021-03-31

Brief Summary

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* To evaluate the role of dynamic ultrasound in evaluation patient with clinically suspected shoulder joint impingement.
* To assess the added value of dynamic ultrasonography to the static examination of patients with clinically suspected impingement.

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Detailed Description

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Shoulder impingement syndromes and degenerative rotator cuff (RC) disease represent the main causes of shoulder pain . Impingement is classified into four types, depending on the site of soft-tissue entrapment: sub acromial, sub coracoid, poster superior inner and anterosuperior inner impingement. The sub acromial impingement syndrome is by far the most common in practice. . The clinical symptoms of sub acromial impingement include nocturnal pain and progressive, limited range of motion. At clinical examination, there is a painful area at 80-120° elevation, which is worsened during downward movements Osteophytes, or an abnormal shape of the acromion, sub acromial spurs, and the acromioclavicular joint, are common causes of compression at the rotator cuff and the overlying subacromial-subdeltoid bursa . Ultrasonography (US) is a commonly performed examination for shoulder impingement, recommended by experts as the first-choice technique to evaluate various shoulder diseases. Shoulder impingement is the most common and well-recognized indication for dynamic US in the shoulder.

Dynamic evaluation can be done by shoulder abduction or flexion with the probe placed at the end of the acromion in the coronal plane or in the sagittal plane. The two important points to be checked for shoulder impingement are the humeral head depression and tendon/bursal impingement . Because humeral head depression is essential to make enough space for the rotator cuff to slide beneath the acromion, the center of the humeral head normally moves inferiorly in the latter half of the cycle during shoulder abduction. When the humeral head does not move inferiorly or abnormally moves superiorly, the space for the rotator cuffs and the subacromial-subdeltoid bursa decreases and subacromial impingement can occur .

Magnetic resonance imaging (MRI) is currently considered the reference standard for imaging of shoulder disorders. The strength of MRI lies in its ability to assess sonographically inaccessible areas such as labrum, deep parts of various ligaments, capsule, and areas obscured by bone . MRI is the imaging study of choice for classifying tendon retraction and assessing the shoulder musculature. Its main disadvantage is being a static evaluation of the shoulder joint . There are several advantages of Ultrasonography over MRI. Ultrasonography has the benefit of being a dynamic form of imaging as compared to the static MRI. Ultrasonography is portable, quick, and a more cost-effective method. It is also better tolerated by the patient and allows interaction with the patient, who can point at the symptomatic area, thus optimizing the diagnostic yield.

Conditions

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Shoulder Impingement

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Dynamic ultrasound

The ultrasound examination will be carried out blinded to the results of MRI using the Affiniti 70 ultrasound machine by Philips (USA) via a 5-12MHz linear transducer.

MRI was performed on a high field system (1.5 Tesla) magnet units (Philips Acheiva).

Intervention Type DEVICE

Other Intervention Names

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MRI

Eligibility Criteria

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Exclusion Criteria

* The following categories of patient will be excluded from the study.

1. History of previous shoulder surgery.
2. History of joint dislocation.
3. Fracture to the shoulder girdle.
4. Patient with contraindication to MRI.

Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No