Distal radioulnar joint
Citation, DOI, disclosures and article data
At the time the article was created Sachi Hapugoda had no recorded disclosures.
View Sachi Hapugoda's current disclosuresAt the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to not be relevant to the changes that were made.
View Craig Hacking's current disclosures- Distal radioulnar joint (DRUJ)
The distal radioulnar joint is a pivot-type synovial joint between the distal radius and ulna.
On this page:
Summary
articulation: pivot-type synovial joint between the ulnar notch of the distal radius and the ulna head
movement: rotation of the distal radius
ligaments: triangular ligament, and anterior and posterior distal radioulnar ligaments
blood supply: anterior and posterior interosseous arteries
nerve supply: anterior and posterior interosseous nerves
Gross anatomy
Articulation
The distal radioulnar joint is a pivot-type synovial joint existing between the ulnar notch of the distal radius and the head of the ulna. The primary uniting structure of the joint is the articular disc of the distal radioulnar joint, also termed the triangular ligament 1 which is part of the triangular fibrocartilage complex (TFCC).
Movement
The primary movement of the distal radioulnar joint is to allow pronation and supination of the forearm.
pronation: pronator quadratus, pronator teres
supination: supinator, biceps brachii
Ligaments and tendons
The distal radioulnar joint has intrinsic and extrinsic stabilising structures.
Intrinsic
anterior and posterior distal radioulnar ligaments
distal radioulnar joint capsule
Extrinsic
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Arterial supply
The blood supply to the distal radio-ulnar joint is provided by the:
dorsal and palmar branches of the anterior interosseous artery
radiocarpal branches of the ulnar artery
Innervation
The nervous supply to the distal radioulnar joint is provided by the:
anterior interosseous nerve (branch of the median nerve)
posterior interosseous nerve (branch of the radial nerve)
Related pathology
Quiz questions
References
- 1. Dalley AF. Essential clinical anatomy. LWW. ISBN:0781799155. Read it at Google Books - Find it at Amazon
- 2. Susan Standring. Gray's Anatomy. ISBN: 9780702052309
Incoming Links
- Dorsal radioulnar ligament
- Wrist
- Effect of isolated pronation-supination (lateral wrist radiograph)
- Essex-Lopresti fracture-dislocation
- Piedmont fracture
- Radius and ulnar shaft fractures
- Triangular fibrocartilage complex injury
- MRI of the wrist (an approach)
- Distal radioulnar joint instability
- Extensor carpi ulnaris tendinopathy
- Medical abbreviations and acronyms (D)
- Distal radioulnar joint osteoarthritis
- Ulna
- Radiocarpal joint
- Ulnar variance
- Pivot joint
- Forearm
- Scaphoid series
- Vaughan-Jackson syndrome
- Scallop sign
- Frykman II distal radius fracture
- Galeazzi fracture-dislocation
- Colles fracture - dinner fork deformity
- Distal radioulnar joint osteoarthritis
- Galeazzi fracture-dislocation
- Galeazzi fracture-dislocation
- Galeazzi fracture-dislocation
- Galeazzi fracture-dislocation
- Galeazzi fracture-dislocation - with follow-up
- Galeazzi fracture-dislocation
- Atzei classification of peripheral TFCC tears
- Scallop sign - rheumatoid arthritis
- Triangular fibrocartilage complex tear
- Wrist: annotated AP view
- Galeazzi fracture-dislocation
- Normal radiographic anatomy of the wrist
- Distal radio-ulnar joint effusion
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