Abstract
We assessed the best positioning of the humerus for CT scans obtained after aircontrast shoulder arthrography by performing 54 examinations with both external and internal rotation of the humerus. Of the 30 abnormalities of the anterior portion of the labrum, 27 (90%) were identified on the scans obtained with the arm in internal rotation. The other three (10%) were shown best or solely on the scans obtained with the arm in external rotation. All 22 abnormalities of the anterior capsule were shown on the scans obtained with internal rotation. In no case were scans obtained in external rotation superior. Five posterior labral and capsule abnormalities were found; two of them were identified best or only on scans obtained with external rotation. The other three were shown equally well with the arm in either position. The results show that a modest (9%) increase in diagnostic yield can be expected when CT scans obtained with the arm in external rotation are added to studies performed solely with the arm internally rotated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1017-1019 |
| Number of pages | 3 |
| Journal | American Journal of Roentgenology |
| Volume | 153 |
| Issue number | 5 |
| State | Published - 1989 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Computed arthrotomography of the shoulder : Comparison of examinations made with internal and external rotation of the humerus. / Pennes, D. R.; Jonsson, K.; Buckwalter, Kenneth; Braunstein, E.; Blasier, R.; Wojtys, E.
In: American Journal of Roentgenology, Vol. 153, No. 5, 1989, p. 1017-1019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Computed arthrotomography of the shoulder
T2 - Comparison of examinations made with internal and external rotation of the humerus
AU - Pennes, D. R.
AU - Jonsson, K.
AU - Buckwalter, Kenneth
AU - Braunstein, E.
AU - Blasier, R.
AU - Wojtys, E.
PY - 1989
Y1 - 1989
N2 - We assessed the best positioning of the humerus for CT scans obtained after aircontrast shoulder arthrography by performing 54 examinations with both external and internal rotation of the humerus. Of the 30 abnormalities of the anterior portion of the labrum, 27 (90%) were identified on the scans obtained with the arm in internal rotation. The other three (10%) were shown best or solely on the scans obtained with the arm in external rotation. All 22 abnormalities of the anterior capsule were shown on the scans obtained with internal rotation. In no case were scans obtained in external rotation superior. Five posterior labral and capsule abnormalities were found; two of them were identified best or only on scans obtained with external rotation. The other three were shown equally well with the arm in either position. The results show that a modest (9%) increase in diagnostic yield can be expected when CT scans obtained with the arm in external rotation are added to studies performed solely with the arm internally rotated.
AB - We assessed the best positioning of the humerus for CT scans obtained after aircontrast shoulder arthrography by performing 54 examinations with both external and internal rotation of the humerus. Of the 30 abnormalities of the anterior portion of the labrum, 27 (90%) were identified on the scans obtained with the arm in internal rotation. The other three (10%) were shown best or solely on the scans obtained with the arm in external rotation. All 22 abnormalities of the anterior capsule were shown on the scans obtained with internal rotation. In no case were scans obtained in external rotation superior. Five posterior labral and capsule abnormalities were found; two of them were identified best or only on scans obtained with external rotation. The other three were shown equally well with the arm in either position. The results show that a modest (9%) increase in diagnostic yield can be expected when CT scans obtained with the arm in external rotation are added to studies performed solely with the arm internally rotated.
UR - http://www.scopus.com/inward/record.url?scp=0024455778&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024455778&partnerID=8YFLogxK
M3 - Article
C2 - 2801419
AN - SCOPUS:0024455778
VL - 153
SP - 1017
EP - 1019
JO - American Journal of Roentgenology
JF - American Journal of Roentgenology
SN - 0361-803X
IS - 5
ER -