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Temporomandibular joint dysfunction: correlation of MR imaging, arthrography, and arthroscopy
V M Rao1, A Farole, D Karasick
1Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA 19107.
Radiology
|March 1, 1990
Summary
Magnetic resonance (MR) imaging accurately shows temporomandibular joint (TMJ) disk position noninvasively. Arthroscopy is best for detecting TMJ perforations and adhesions, guiding treatment decisions.
Area of Science:
- Radiology
- Orthopedics
- Dental Imaging
Background:
- Temporomandibular joint (TMJ) dysfunction diagnosis relies on imaging.
- Accurate assessment of internal derangements is crucial for effective management.
Purpose of the Study:
- To compare the diagnostic accuracy of MR imaging, arthrography, and arthroscopy for TMJ dysfunction.
- To evaluate the effectiveness of each modality in assessing disk position, morphology, perforation, adhesions, and degenerative changes.
Main Methods:
- Prospective study of 27 patients with suspected TMJ dysfunction.
- Correlation of MR imaging, arthrography, and arthroscopy findings with surgical confirmation in 12 TMJs.
- Assessment of disk position, morphology, perforation, adhesions, and degenerative joint disease.
Main Results:
- MR imaging superior to arthrography for disk position delineation (92% vs. 75% accuracy).
- MR imaging did not detect disk perforations or adhesions.
- Arthroscopy excelled in identifying disk perforations, adhesions, and early degenerative changes.
Conclusions:
- MR imaging is recommended as the initial noninvasive imaging modality for TMJ dysfunction due to its accuracy in assessing disk position.
- Arthroscopy is valuable for detecting perforations and adhesions.
- Triple correlation (MR, arthrography, arthroscopy) may be necessary for complex cases.