Abstract
Objectives
To investigate if using high-resolution 3-T MRI can identify additional injuries of the triangular fibrocartilage complex (TFCC) beyond the Palmer classification.
Materials and methods
Eighty-six patients with surgically proven TFCC injury were included in this study. All patients underwent high-resolution 3-T MRI of the injured wrist. The MR imaging features of TFCC were analyzed according to the Palmer classification.
Results
According to the Palmer classification, 69 patients could be classified as having Palmer injuries (52 had traumatic tears and 17 had degenerative tears). There were 17 patients whose injuries could not be classified according to the Palmer classification: 13 had volar or dorsal capsular TFC detachment and 4 had a horizontal tear of the articular disk.
Conclusion
Using high-resolution 3-T MRI, we have not only found all the TFCC injuries described in the Palmer classification, additional injury types were found in this study, including horizontal tear of the TFC and capsular TFC detachment. We propose the modified Palmer classification and add the injury types that were not included in the original Palmer classification.
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Acknowledgements
This study was funded by the National Natural Science Foundation of China (grant number 81371515), the Beijing Natural Science Foundation of China (grant number 7142075), the Capital Medical Development and Scientific Research Fund of China (grant number 2016-2-1122).
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Rongjie Bai and Yuming Yin contributed equally to this work
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Zhan, H., Zhang, H., Bai, R. et al. High-resolution 3-T MRI of the triangular fibrocartilage complex in the wrist: injury pattern and MR features. Skeletal Radiol 46, 1695–1706 (2017). https://doi.org/10.1007/s00256-017-2739-x
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DOI: https://doi.org/10.1007/s00256-017-2739-x