Dorsal radioulnar ligament: Difference between revisions

(added cites)
(Added Info to Clinical relevance)
Line 5: Line 5:
</div>  
</div>  
=== Description  ===
=== Description  ===
The dorsal radioulnar ligament (DRUL) is comprised of parallel collagen bundles divides into deep and superficial limbs, which attach into the fovea and ulnar styloid respectively, spanning across the radius and ulna and forming ,among other structures, the triangular fibrocartilage complex (TFCC) located on the ulnar aspect of the wrist joint between the lunate, triquetrum, and ulnar head. <ref>Pulos N, Bozentka DJ. [https://pubmed.ncbi.nlm.nih.gov/26205699/ Carpal ligament anatomy and biomechanics]. Hand Clinics. 2015 Aug 1;31(3):381-7.</ref><ref>Jawed A, Ansari MT, Gupta V. [https://pubmed.ncbi.nlm.nih.gov/32742122/ TFCC injuries: How we treat?]. Journal of Clinical Orthopaedics and Trauma. 2020 Jul 1;11(4):570-9.</ref>
The dorsal radioulnar ligament (DRUL) is comprised of parallel collagen bundles divides into deep and superficial limbs, which attach into the fovea and ulnar styloid respectively, spanning across the radius and ulna and forming ,among other structures, the triangular fibrocartilage complex (TFCC) located on the ulnar aspect of the wrist joint between the lunate, triquetrum, and ulnar head. <ref>Pulos N, Bozentka DJ. [https://pubmed.ncbi.nlm.nih.gov/26205699/ Carpal ligament anatomy and biomechanics]. Hand Clinics. 2015 Aug 1;31(3):381-7.</ref><ref name=":0">Jawed A, Ansari MT, Gupta V. [https://pubmed.ncbi.nlm.nih.gov/32742122/ TFCC injuries: How we treat?]. Journal of Clinical Orthopaedics and Trauma. 2020 Jul 1;11(4):570-9.</ref>


=== Attachment ===
=== Attachment ===
Line 11: Line 11:


=== function ===
=== function ===
DRUL is one of the structures enabling  stabilization for the ulnar aspect of the wrist and the distal radioulnar joint (DRUJ)while also functioning as a shock absorber for the ulnar carpus. <ref>Casadei K, Kiel J. [https://www.ncbi.nlm.nih.gov/books/NBK537055/#:~:text=The%20triangular%20fibrocartilage%20complex%20(TFCC,acute%20or%20chronic%20degenerative%20injury. Triangular Fibrocartilage Complex].</ref>
DRUL acts along with the palmar radioulnar ligament as primary stabilizers of the dorsal radioulnar joint (DRUJ) and act as a shock absorber across the ulna-carpal joint. <ref name=":1">Casadei K, Kiel J. [https://www.ncbi.nlm.nih.gov/books/NBK537055/#:~:text=The%20triangular%20fibrocartilage%20complex%20(TFCC,acute%20or%20chronic%20degenerative%20injury. Triangular Fibrocartilage Complex].</ref><ref>Moritomo H. [https://pubmed.ncbi.nlm.nih.gov/19956042/ Advantages of open repair of a foveal tear of the triangular fibrocartilage complex via a palmar surgical approach]. Tech Hand Upper Extrem Surg. 2009;13:176–81. doi: 10.1097/BTH.0b013e3181bd8319</ref>
 
=== clinical relevance ===
Traumatic or degenerative Injuries can occur with aging and due to the complexity of the anatomical structure and the way load transmission takes place around the ulnar aspect of the wrist joint. Repetitive forearm rotation, in particular, can lead to overuse of DRUL and therefore to degenerative changes.<ref name=":0" /> The injuries prevalence in patients age 70 or older is 49% and 27% in patients age 30 or younger. <ref name=":1" />The injuries are associated with damage involves the TFCC or other radioulnar ligaments resulting from distal radius fractures and fractures of the ulnar styloid. Injury to the interosseous membrane (IOM) can put a lot of strain on the DRUL and therefore can cause injury to the DRUL. <ref>Werner FW, LeVasseur MR, Harley BJ, Anderson A. [https://pubmed.ncbi.nlm.nih.gov/28428910/ Role of the interosseous membrane in preventing distal radioulnar gapping]. Journal of Wrist Surgery. 2017 May;6(02):097-101.</ref>  




Revision as of 03:00, 30 November 2022

Original Editor - User Name

Top Contributors - Noa Weingarten  

Description[edit | edit source]

The dorsal radioulnar ligament (DRUL) is comprised of parallel collagen bundles divides into deep and superficial limbs, which attach into the fovea and ulnar styloid respectively, spanning across the radius and ulna and forming ,among other structures, the triangular fibrocartilage complex (TFCC) located on the ulnar aspect of the wrist joint between the lunate, triquetrum, and ulnar head. [1][2]

Attachment[edit | edit source]

The DRUL is connecting the posterior margin of the ulnar notch at the distal radius to the posterior portion of the head of the ulna. The ligament innervated by the anterior and posterior interosseous nerve and the anterior interosseous artery supply her blood[3][4]

function[edit | edit source]

DRUL acts along with the palmar radioulnar ligament as primary stabilizers of the dorsal radioulnar joint (DRUJ) and act as a shock absorber across the ulna-carpal joint. [5][6]

clinical relevance[edit | edit source]

Traumatic or degenerative Injuries can occur with aging and due to the complexity of the anatomical structure and the way load transmission takes place around the ulnar aspect of the wrist joint. Repetitive forearm rotation, in particular, can lead to overuse of DRUL and therefore to degenerative changes.[2] The injuries prevalence in patients age 70 or older is 49% and 27% in patients age 30 or younger. [5]The injuries are associated with damage involves the TFCC or other radioulnar ligaments resulting from distal radius fractures and fractures of the ulnar styloid. Injury to the interosseous membrane (IOM) can put a lot of strain on the DRUL and therefore can cause injury to the DRUL. [7]


 


Resources[edit | edit source]

  • bulleted list
  • x

or

  1. numbered list
  2. x

References[edit | edit source]

  1. ↑ Pulos N, Bozentka DJ. Carpal ligament anatomy and biomechanics. Hand Clinics. 2015 Aug 1;31(3):381-7.
  2. ↑ 2.0 2.1 Jawed A, Ansari MT, Gupta V. TFCC injuries: How we treat?. Journal of Clinical Orthopaedics and Trauma. 2020 Jul 1;11(4):570-9.
  3. ↑ Moore KL, Dalley AF, Agur AMR. Clinically oriented anatomy. Lippincott Williams and Wilkins. ISBN:0781775256. Read it at Google Books - Find it at Amazon
  4. ↑ MIKIC Ž. The blood supply of the human distal radioulnar joint and the microvasculature of its articular disk. Clinical Orthopaedics and Related Research®. 1992 Feb 1;275:19-28.
  5. ↑ 5.0 5.1 Casadei K, Kiel J. Triangular Fibrocartilage Complex.
  6. ↑ Moritomo H. Advantages of open repair of a foveal tear of the triangular fibrocartilage complex via a palmar surgical approach. Tech Hand Upper Extrem Surg. 2009;13:176–81. doi: 10.1097/BTH.0b013e3181bd8319
  7. ↑ Werner FW, LeVasseur MR, Harley BJ, Anderson A. Role of the interosseous membrane in preventing distal radioulnar gapping. Journal of Wrist Surgery. 2017 May;6(02):097-101.
Retrieved from "https://www.physio-pedia.com/index.php?title=Dorsal_radioulnar_ligament&oldid=322168"