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Simultaneous dislocation of the radial head and distal radio-ulnar joint. A case report.
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MedLine Citation:
PMID:  18825278     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Isolated dislocation of the distal radio-ulnar joint and isolated dislocation of the radial head in adults are not common injuries. A simultaneous dislocation of the radial head and distal radio-ulnar joint with no other injury seems to be extremely rare since only one report was found in the English literature. A similar case, but with some differences in presentation and treatment is reported.
Authors:
D-A J Verettas; G I Drosos; K C Xarchas; C N Chatzipapas; C Staikos
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2008-09-29
Journal Detail:
Title:  International journal of medical sciences     Volume:  5     ISSN:  1449-1907     ISO Abbreviation:  Int J Med Sci     Publication Date:  2008  
Date Detail:
Created Date:  2008-09-30     Completed Date:  2008-11-17     Revised Date:  2013-06-05    
Medline Journal Info:
Nlm Unique ID:  101213954     Medline TA:  Int J Med Sci     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  292-4     Citation Subset:  IM    
Affiliation:
Department of Orthopaedic Surgery, Medical School, Democritus University of Thrace, University General Hospital of Alexandroupolis, 68100 Alexandroupolis, Greece.
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MeSH Terms
Descriptor/Qualifier:
Dislocations / pathology*,  surgery
Elbow Joint / injuries*,  radiography
Forearm Injuries / pathology,  surgery
Humans
Male
Middle Aged
Radius / injuries*,  radiography
Ulna / injuries*,  radiography
Wrist Injuries / pathology,  surgery
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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Journal Information
Journal ID (nlm-ta): Int J Med Sci
Journal ID (publisher-id): ijms
ISSN: 1449-1907
Publisher: Ivyspring International Publisher, Sydney
Article Information
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? Ivyspring International Publisher. This is an open-access article distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by-nc-nd/3.0/). Reproduction is permitted for personal, noncommercial use, provided that the article is in whole, unmodified, and properly cited.
Received Day: 4 Month: 9 Year: 2008
Accepted Day: 23 Month: 9 Year: 2008
collection publication date: Year: 2008
Electronic publication date: Day: 29 Month: 9 Year: 2008
Volume: 5 Issue: 5
First Page: 292 Last Page: 294
ID: 2556052
PubMed Id: 18825278
Publisher Id: ijmsv05p0292

Simultaneous dislocation of the radial head and distal radio-ulnar joint. A case report
D-A.J. Verettas
G.I. Drosos
K.C. Xarchas
C.N. Chatzipapas?
C. Staikos
Department of Orthopaedic Surgery, Medical School, Democritus University of Thrace, University General Hospital of Alexandroupolis, 68100 Alexandroupolis, Greece.
Correspondence: ? Correspondence to: Christos N. Chatzipapas, MD, PhD, Orthopaedic Surgeon. Department of Orthopaedic Surgery, Medical School, Democritus University of Thrace, University General Hospital of Alexandroupolis, 68100 Alexandroupolis, Greece. Tel. +302551036550 Fax. +302551023326 Email hatzy@otenet.gr
[conflict] Conflict of Interest: The authors have declared that no conflict of interest exists.

Introduction

Posttraumatic instability of the distal radio-ulnar joint (DRUJ) has been commonly described in association with Colles's type fractures 1, Smith's type fractures 2, fractures of the radial diaphysis (Galeazzi's fracture-dislocation) 2, fractures of the radial head 3 and elbow dislocations 4,5.

Isolated dislocation of the DRUJ, although it has been described since 1777 by Desault 6, only few cases have been reported according to a recent review 7. Isolated dislocation of the radial head is common in children but rare in adults as only 20 cases have been reported during the last 30 years 8.

A simultaneous dislocation of the radial head and distal radio-ulnar joint with no other injury seems to be extremely rare since only one report was found in the English literature 7.


Case report

A 54-year-old male presented in the Emergency Department of our Institution, complaining of pain, deformity of the left wrist and elbow and inability to move these joints, following a fall on the out-stretched hand at work. On clinical examination, the forearm was held in supination with both the elbow and the wrist in flexion. He was unable to move the elbow and the wrist, whilst finger movement and sensation were normal. No neurovascular injury could be detected. No other parts of the body were injured.

Radiographs of the forearm, including both the elbow and wrist joints, revealed an anterior dislocation of the radial head and a disruption of the DRUJ with a volar dislocation of the distal ulna [Fig.1].

The injury was treated immediately, with closed reduction of both dislocations, K-wire stabilization of the DRUJ and immobilization of the forearm with a long arm cast in supination. Under general anaesthesia firstly the radial head was reduced with traction, supination and direct pressure, followed by reduction of the DRUJ with pronation, while the reduced radial head was maintained in supination by an assistant. After the reduction, the radial head was unstable whenever the forearm was positioned in neutral rotation. Therefore it was decided to stabilise the DRUJ with a K-wire in the reduced position and immobilise the forearm with a long arm cast in supination and the elbow in 90 degrees flexion [Fig.2].

Three weeks later the elbow was allowed to be mobilised while the DRUJ K-wire remained in situ for a total of 12 weeks. Three months later the patient had regained full range of elbow movement but with some restriction in forearm pronation, with a stable DRUJ. Unfortunately the patient did not attend any further appointments in the Outpatient Department.


Discussion

A similar case with a simultaneous dislocation of the radial head and DRUJ with no other injury of the arm was reported a few years ago 7. The differences with our case is that (a) in our case the radial head was displaced purely anteriorly and not antero-lateraly as in their case and (b) after the reduction, in our case the radial head was unstable with the forearm in neutral rotation.

Dislocations of the DRUJ are classified according to the displacement of the ulna as dorsal (more common), volar and longitudinal (proximal translation), the latter being the original Essex-Lopresti injury 3,9. The mechanism of injury for the dorsal dislocation is hyperpronation, for the volar dislocation hypersupination and for the original Essex-Lopresti injury is the proximal translation of the radius 3,9.

Isolated radial head dislocation may be posterior (dorsal) or anterior (volar) and the mechanism is hyperpronation and hypersupination of the forearm respectively 8,10.

As far as the mechanism of injury of the simultaneous dislocation of both joints is concerned we agree with the mechanism proposed by Leung et al 7. They named this injury 'criss-cross' injury of the forearm suggesting that the interosseous membrane may play a role and function as a pivot between the two forearm bones.

The same authors also suggested that, according to their cadaveric studies, this combined injury may represent a severe form of isolated dislocation of one of the radio-ulnar joints. They believe that even in an isolated dislocation of one of the radio-ulnar joints, a subluxation or a sprain of the other joint is present. Therefore the dislocation of the other joint is just a subsequent stage of the same injury.

Although an increase in the distance at the DRUJ was observed on AP view (figure 2), the reduction was accepted. In fact, a perfect reduction was not achieved. It would be interesting to see if this would have caused problems in the patient's wrist after some period of time. Unfortunately we were able to follow-up the patient only for three months post-operatively.


References
1. Colles A. On the fracture of the carpal extremity of the radiusEdinburgh Med Surg J 1814;10:182–86.
2. Hyman G,Martin FRR. Dislocation of the inferior radio-ulnar joint as a complication of fracture of the radiusBr J Surg 1940;27:481–91.
3. Essex-Lopresti P. Fractures of the radial head with distal radio-ulnar dislocation: report of two casesJ Bone Joint Surg [Br] 1951;33:244–47.
4. Bock GW,Cohen MS,Resnick D. Fracture-dislocation of the elbow with inferior radioulnar dislocation: a variant of the Essex-Lopresti injurySkeletal Radiol 1992;21:315–17. [pmid: 1502585]
5. Spicer DD,Hargreaves D,Eckersley R. Simultaneous Dislocations of the Radiocapitellar and Distal Radioulnar JointsJ Orthop Trauma 2002;16:136–38. [pmid: 11818812]
6. Cotton FJ,Brickley WJ. Luxation of the ulna forward at the wrist (without fracture)Ann Surg 1912;55:368–73. [pmid: 17862813]
7. Leung YF,Ip SPS,Wong A,Wong KN,Wai YL. Isolated dislocation of the radial head, with simultaneous dislocation of proximal and distal radio-ulnar joints without fracture in an adult patient: case report and review of the literatureInjury 2002;33:271–73. [pmid: 12084649]
8. Rethnam U,Yesupalan RSU,Bastawrous SS. Isolated radial head dislocation, a rare and easily missed injury in the presence of major distracting injuries: a case reportJ Med Case Reports 2007;1:38. [pmid: 17603874]
9. Alexander AH. Bilateral traumatic dislocation of the distal radioulnar joint, ulna dorsal: case report and review of the literatureClin Orthop Rel Res 1977;129:238–44.
10. Deehan DJ,Ashcroft GP,Hutchison JD. Isolated dislocation of the radial head in an adult: case report and review of the literatureJ Roy College Surgeons Edinburgh 1995;40:421–23.

Article Categories:
  • Short Research Communication

Keywords: Simultaneous, Dislocation, Distal radio-ulnar joint, Radial head.

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