A three-channel wrist coil was used with the 0.7-T system and either a quadrature wrist coil or a four-channel wrist coil with the 1.5-T system.
The radioscaphocapitate ligament (RSC) originates from the styloid process of the radius (Fig. Although previously described criteria [.We thank Julie A. Ostoich-Prather for assistance in preparing the figures for this article.Assessment of Volar Radiocarpal Ligaments: MR Arthrographic and Arthroscopic Correlation.Copyright © 2013-2020, American Roentgen Ray Society, ARRS, All Rights Reserved.Original Research.
With arthroscopy as the reference standard, the sensitivity of MR arthrography for detection of radioscaphocapitate ligament tear was 63% (5/8), and the specificity was 56% (10/18). Hip Anatomic Variants That May Mimic Abnormalities at MRI: Labral Variants. The DIC ligament originates from the dorsal aspect of triquetrum with attachments to the lunate, scaphoid, capitate, trapezium, and trapezoid. The distal radioulnar joint is normal as are wrist tendons.ADVERTISEMENT: Supporters see fewers/no ads,{"url":"/signup-modal-props.json?lang=us\u0026email="}.ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers.Scapholunate ligament complete tear on MRI,MSK - Clinical Conditions - Hand and Wrist. Owing to the retrospective nature of our study, it was not possible to standardize acquisition technique. It inserts on the palmar side of the capitate. The compartments into which the injection was performed and the order of injection varied owing to differences in the clinical indication for the study and individual preferences of the person performing the injection.Two of the 26 MR arthrographic examinations were performed with a 0.7-T system. Radioscaphocapitate and long radiolunate tears seen at MRI and at arthroscopic examination were recorded. Although no consistent differences in image quality were apparent empirically, the heterogeneity in acquisition techniques, protocols, and MRI systems used to obtain the images is another limitation of our study. MRI of the Thumb: Anatomy and Spectrum of Findings in Asymptomatic Volunteers,Review. There is also tearing of the distal scaphotrapezoid and trapezium ligaments and partial tearing at the proximal attachment of the radioscaphocapitate ligament which is probably chronic with a number of small ganglion cysts observed. The sensitivities and specificities calculated in our study are low. Since the first description of the extrinsic ligaments of the wrist, their functions have continued to be defined. [,With the recognition of the importance of the radioscaphocapitate and long radiolunate ligaments (.Institutional review board approval was obtained for this HIPAA-compliant retrospectively designed study. Imaging of Anterior Cruciate Ligament Repair and Its Complications,Original Research. During this period, the primary investigator’s standard wrist arthroscopy protocol included specific assessment and reporting of the integrity of the radioscaphocapitate and long radiolunate ligaments. 1, Fig. The arthroscopic surgeon was not blinded to the results of MRI before performing arthroscopy, but in only four cases did the formal MRI report describe the status of the radioscaphocapitate and long radiolunate ligaments.Examination of the MR images was performed by a musculoskeletal fellowship-trained radiologist with 2 years of experience in interpreting MR arthrograms of the wrist. MR arthrograms were obtained after instillation of dilute gadolinium contrast medium into one or more of the midcarpal, radiocarpal, and distal radioulnar joint compartments. The radioscaphocapitate ligament is easily seen on MRI. The dorsal intercarpal ligament is also partially strained with diffuse high signal.
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