AI Article Synopsis
- The study explored the occurrence of contrast material extending from the radiocarpal joint into the soft tissues near the ulnar aspect of the wrist in MR arthrograms, hypothesizing that this finding is common and not related to symptoms.
- Out of 99 wrist examinations reviewed, 57% showed ulnar-sided contrast extravasation, which was more frequent in right wrists, but no other significant associations with wrist pain or joint abnormalities were found.
- The conclusion emphasized that such contrast extravasation is common following single-compartment radiocarpal joint injections and is not linked to the patients' reported symptoms or designed evaluation techniques.
Article Abstract
Objective: Contrast material often extends from the radiocarpal joint into the proximal soft tissues adjacent to the ulnar aspect of the ulnar styloid during single-compartment radiocarpal joint MR arthrography of the wrist. The hypothesis of this study was that this is a common finding unrelated to symptoms or examination technique.
Materials And Methods: Wrist MR arthrograms were retrospectively reviewed in consensus by two radiologists. The presence or absence of ulnar-sided contrast extravasation was documented, whether this extravasation appeared contained or dispersed, as was the overall degree of proximal extension of the extravasated contrast material. Patient age, sex, wrist sidedness, volume of contrast material administered, location of symptoms reported clinically, and aberrant contrast material also apparent within the midcarpal space or distal radioulnar joint on the MR images reviewed were documented to determine potential association with ulnar-sided contrast extravasation.
Results: Ninety-nine examinations met the inclusion criteria. Ulnar-sided contrast extravasation after single-compartment radiocarpal joint injection was present in 56 of the 99 wrists (57%). This finding was statistically more common in right versus left wrists. No other statistically significant associations were identified.
Conclusion: Contrast extravasation along the ulnar aspect of the distal ulna after single-compartment radiocarpal joint injection is common. In this study it had no statistically significant association with the location of a patient's wrist pain or abnormal findings evaluated at MR arthrography.
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| http://dx.doi.org/10.2214/AJR.18.20304 | DOI Listing |
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