Abstract
Distal radioulnar dislocations typically occur in association with fractures of the distal radius and/or ulna. Rare isolated dislocations or subluxations are more difficult to diagnose and are initially missed in up to 50 % of cases. We present two cases of missed isolated volar rotatory dislocation of the distal radioulnar joint. Subtle, overlooked radiographic findings of abnormal radioulnar alignment and ulnar styloid projection are highlighted. The supplemental role of cross-sectional imaging is reviewed. Adequate clinical information, appropriate radiographic technique, and high index of suspicion are necessary for the accurate and timely diagnosis of this rare injury pattern.
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Ehman EC, Felmlee JP, Frick MA. Imaging of the proximal and distal radioulnar joints. Magn Reson Imaging Clin N Am. 2015;23:417–25.
Amrami KK, Moran SL, Berger RA, Ehman EC, Felmlee JP. Imaging the distal radioulnar joint. Hand Clin. 2010;26:467–75.
Goldfarb C, Yin Y, Gilula LA, Fisher AJ, Boyer MI. Wrist fractures: what the clinician wants to know. Radiology. 2001;219:11–28.
Heiple KG, Freehafer AA, Vant Hof A. Isolated traumatic dislocation of the distal end of the ulna or distal radio-ulnar joint. J Bone Joint Surg Am. 1962;44A:1387–94.
Singletary EM. Volar dislocation of the distal radioulnar joint. Ann Emerg Med. 1994;23:881–3.
Mittal R, Kulkarni R, Subsposh SY, Giannoudis PV. Isolated volar dislocation of distal radioulnar joint: how easy to miss! Eur J Emerg Med. 2004;11:113–6.
Schiller MG, Ekenstam FA, Kirsch PT. Volar dislocation of the distal radio-ulnar joint. J Bone Joint Surg Am. 1991;73A:617–9.
Garrigues GE, Aldridge JM. Acute irreducible distal radioulnar joint dislocation: a case report. J Bone Joint Surg Am. 2007;89:1594–7.
Asopa V, Douglas RJ, Saies AD, Church JS. A misdiagnosis of traumatic hypersupination of the distal radioulnar joint: a case report. Case Rep Orthop. 2013;2013:1–3.
Mulford JS, Jansen S, Axelrod TS. Isolated volar distal radioulnar joint dislocation. J Trauma Inj Infect Crit Care. 2010;68:E23–5.
Kumar A, Iqbal MJ. Missed isolated volar dislocation of distal radio-ulnar joint: a case report. J Emerg Med. 1999;17:873–5.
Kleinman WB. Stability of the distal radioulna joint: biomechanics, pathophysiology, physical diagnosis, and restoration of function what we have learned in 25 years. J Hand Surg. 2007;32A:1086–106.
Wijffels MM, Brink PR, Schipper IB. Clinical and non-clinical aspects of distal radioulnar joint instability. Open Orthop J. 2012;6:204–10.
Szabo RM. Selected The American Academy of Orthopaedic Surgeons. J Bone Joint Surg Am. 2006;88A:884–94.
Nicolaidis S, Hildreth DH, Lichtman DM. Acute injuries of the distal radioulnar joint. Hand Clin. 2000;16:449–59.
Carlsen BT, Dennison DG, Moran SL. Acute dislocations of the distal radioulnar joint and distal ulna fractures. Hand Clin. 2010;26:503–16.
Morrissy RT, Nalebuff EA. Dislocation of the distal radioulnar joint: anatomy and clues to prompt diagnosis. Clin Orthop Relat Res. 1979;144:154–8.
Nakamura R, Horii E, Imaeda T, Tsunoda K, Nakao E. Distal radioulnar joint subluxation and dislocation diagnosed by standard roentenography. Skelet Radiol. 1995;24:91–4.
Nakamura R, Horii E, Imaeda T, Nakao E. Criteria for diagnosing distal radioulnar joint subluxation by computed tomography. Skelet Radiol. 1996;25:649–53.
Mino DE, Palmer AK, Levinsohn M. The role of radiography and computerized tomography in the diagnosis of subluxation and dislocation of the distal radioulnar joint. J Hand Surg. 1983;8:23–31.
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Duryea, D.M., Payatakes, A.H. & Mosher, T.J. Subtle radiographic findings of acute, isolated distal radioulnar joint dislocation. Skeletal Radiol 45, 1243–1247 (2016). https://doi.org/10.1007/s00256-016-2411-x
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DOI: https://doi.org/10.1007/s00256-016-2411-x