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Sonographic evaluation of subacromial space
R Azzoni1, P Cabitza, M Parrini
1Department of Orthopaedic, State University of Milan, Department of Medical and Surgical Science, 30 Morandi Street, 20097 San Donato milanese (MI), Italy. roberto.azzoni@unimi.it
Ultrasonics
|March 30, 2004
Summary
Sonography accurately measures subacromial space dimensions, comparable to X-rays. This ultrasound technique is reliable for clinical use and identifies variations linked to acromial shape and rotator cuff issues.
Area of Science:
- Orthopedics
- Radiology
- Medical Imaging
Background:
- Subacromial space measurements are crucial for diagnosing shoulder pathologies.
- Radiography is the traditional method, but involves radiation exposure.
- Sonography offers a non-invasive alternative for assessing shoulder anatomy.
Purpose of the Study:
- To compare the accuracy of sonographic versus radiographic measurements of the subacromial space.
- To investigate variations in subacromial space related to acromial morphology, age, sex, and rotator cuff pathologies.
Main Methods:
- Compared radiographic and sonographic subacromial space measurements in 200 shoulders.
- Utilized a HDI 5000 ultrasound scanner with a 7.5 MHz linear array transducer.
- Employed a personal measurement method for both imaging modalities.
Main Results:
- Sonographic and radiographic measurements showed no statistically significant difference (p>0.8).
- Subacromial space size correlated with acromial morphology, female gender, and rotator cuff pathology.
- Age was not found to be a significant factor in subacromial space size.
Conclusions:
- Sonographic measurements closely align with radiographic findings, supporting its clinical utility.
- Bland-Altman analysis confirmed the reliability of sonography as a substitute for radiography.
- Sonography demonstrated precision and accuracy in measuring the subacromial space, with significant differences noted among patient groups.