Scapholunate ligament
| Ligament: Scapholunate ligament | ||
|---|---|---|
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| Shown is the right hand, palm down (left) and palm up (right). A=Scaphoid, B=Lunate | ||
| From | scaphoid | |
| To | lunate | |
The scapholunate ligament is a ligament of the wrist.[1]
The scapholunate ligament is an intraarticular ligament binding the scaphoid and lunate bones of the wrist together. It is divided into three areas, dorsal, proximal and palmar, with the dorsal segment being the strongest part.[2] It is the main stabilizer of the scaphoid. In contrast to the scapholunate ligament, the lunotriquetral ligament is more prominent on the palmar side.
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[edit] Clinical significance
Complete rupture of this ligament leads to wrist instability.<http://www.eatonhand.com/ebook/id79_m.htm[3][4] The instability can be either dynamic in nature which typically cannot be seen on X-Ray, or static which can be seen on X-Ray. The Watson's test may be used in diagnosis.
[edit] Treatment
Treatment will vary depending upon the degree of injury and can range from observation, through surgical reconstruction of the wrist.
[edit] See also
[edit] References
- ^ Mark D. Miller; Jennifer Hart; John M. MacKnight (10 July 2009). Essential Orthopaedics. Elsevier Health Sciences. pp. 305–. ISBN 9781416054733. http://books.google.com/books?id=5Zr0aHeVXz8C&pg=PA305. Retrieved 1 November 2010.
- ^ Berger, R.A.; Clin Orthop Relat Res. 2001 Feb;(383):32-40. Review.
- ^ "Scapholunate ligament injuries". Eatonhand.com. http://www.eatonhand.com/ebook/id79_m.htm. Retrieved 2011-01-13.
- ^ "Scapholunate Instability - Wheeless' Textbook of Orthopaedics". Wheelessonline.com. 2011-01-08. http://www.wheelessonline.com/ortho/scapholunate_instability. Retrieved 2011-01-13.
American typical Ligament should never be contused.
[edit] Additional images
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Stress view showing scapholunate instability
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Stress view showing scapholunate instability
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Scapholunate ligament disruption associated with a colles fracture
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