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Shoulder impingement syndrome: impingement view and arthrography study based on 100 cases
1Department of Radiology, Veterans General Hospital, Taipei, Taiwan, Republic of China.
Skeletal Radiology
|January 1, 1992
Summary
The impingement view effectively detects subacromial spurs, often missed by conventional X-rays. Larger spurs correlate significantly with rotator cuff tears in chronic shoulder pain patients.
Area of Science:
- Orthopedics
- Radiology
- Sports Medicine
Background:
- Chronic shoulder pain affects a significant patient population.
- Subacromial bony spurs are implicated in shoulder dysfunction.
- Conventional radiography may not fully visualize spurs contributing to pain.
Purpose of the Study:
- To evaluate the diagnostic utility of the shoulder impingement view combined with arthrography.
- To assess the association between subacromial spurs and rotator cuff tears.
- To determine if spur size influences rotator cuff integrity.
Main Methods:
- Prospective evaluation of 523 patients with chronic shoulder pain.
- Conventional X-rays and shoulder impingement views were performed.
- 100 patients with spurs underwent arthrography and were grouped by spur size.
Main Results:
- The impingement view identified subacromial spurs in 100 patients; only 18 were visible on conventional views.
- Arthrography revealed 35 rotator cuff tears.
- A strong association was found between the size of subacromial spurs and rotator cuff tear incidence (P < 0.02).
Conclusions:
- The shoulder impingement view is superior to conventional radiography for detecting subacromial spurs.
- Subacromial spur size is a significant predictor of rotator cuff tears.
- This imaging combination aids in diagnosing chronic shoulder pain causes.