HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) All Versions of this Article: 2223010466v1 222/3/763    most recent Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Theumann, N. H. Articles by Resnick, D. Search for Related Content PubMed PubMed Citation Articles by Theumann, N. H. Articles by Resnick, D.

Pisotriquetral Joint: Assessment with MR Imaging and MR Arthrography¹

¹ From the Department of Radiology, Veterans Administration Medical Center, 3350 La Jolla Village Dr, San Diego, CA 92161 (N.H.T., C.W.A.P., C.B.C., G.E.A., D.J.T., D.R.); and Department of Radiology, CHUV, Lausanne, Switzerland (N.H.T.). Received February 15, 2001; revision requested April 9; final revision received September 10; accepted September 19. Supported by the Swiss Radiological Society and the Swiss National Science Foundation. Address correspondence to D.R. (e-mail: dresnick@ucsd.edu).

PURPOSE: To evaluate magnetic resonance (MR) imaging and MR arthrographic findings in the pisotriquetral joint (PTJ) and their contribution to assessment of PTJ osteoarthritis.

MATERIALS AND METHODS: Images of 22 fresh human cadaveric PTJs were obtained with both conventional and arthrographic MR techniques. The MR appearances of all intraarticular and periarticular structures were analyzed and correlated with anatomic slices. Two readers graded visibility of anatomic structures and severity of joint abnormalities. Differences in the visibility ratings at standard MR imaging and at MR arthrography were calculated. Association between the type of pisiform insertion of ligament or muscle with cartilaginous abnormalities of the PTJ was assessed. The association between cartilaginous lesions and osteoarthritic changes was calculated.

RESULTS: The tendon sheath, the fibrous capsule, and cartilaginous surfaces were better visualized at MR arthrography than at MR imaging. Pisohamate and pisometacarpal ligaments were slightly better seen on MR arthrograms. Tendons, muscles, and retinacular structures were well demonstrated at both conventional MR and MR arthrography. Cartilaginous lesions and osteophytes were easily identified and were detected more often in the pisiform bone than in the triquetral bone. Communication of the PTJ with the radiocarpal joint was noted in 18 (82%) of 22 wrists.

CONCLUSION: MR imaging and/or MR arthrography allows visualization of all anatomic structures of the PTJ. MR arthrography improves visualization of findings of osteoarthritis.

© RSNA, 2002

Index terms: Arthritis, 433.711 • Magnetic resonance (MR), arthrography, 433.121419 • Wrist, arthritis, 433.711 • Wrist, MR, 433.1214

This article has been cited by other articles:

				A. G. Blum, J.-P. Zabel, R. Kohlmann, T. Batch, K. Barbara, X. Zhu, G. Dautel, and F. Dap Pathologic Conditions of the Hypothenar Eminence: Evaluation with Multidetector CT and MR Imaging. RadioGraphics, July 1, 2006; 26(4): 1021 - 1044. [Abstract] [Full Text] [PDF]

				E. Pessis, J.-L. Drape, F. Bach, A. Feydy, H. Guerini, and A. Chevrot Direct arthrography of the pisotriquetral joint. Am. J. Roentgenol., March 1, 2006; 186(3): 800 - 804. [Abstract] [Full Text] [PDF]

				N. Saupe, K. P. Prussmann, R. Luechinger, P. Bosiger, B. Marincek, and D. Weishaupt MR Imaging of the Wrist: Comparison between 1.5- and 3-T MR Imaging--Preliminary Experience Radiology, January 1, 2005; 234(1): 256 - 264. [Abstract] [Full Text] [PDF]