The distal radioulnar joint is positioned at the wrist amidst the 2 forearm bones – radius and ulna. It is important to note that this injury is usually a subluxation or partial dislocation but might also involve fracture on either bone.
What are the indications?
The indications of distal radioulnar joint subluxation include the following:
- Wrist pain after a specific impact or trauma
- Intensifying pain or discomfort when twisting the hand over as the radius and ulna bones switch
- The affected wrist might appear misshapen and the ulna is more prominent
- The wrist might appear narrower than the other one
- There is possibility of swelling and tenderness if the wrist is pressed
Wrist pain after a specific impact or trauma.
What are the causes?
The usual cause of distal radioulnar joint dislocation is a fall onto an extended hand. This might also occur after a strike or impact to the hand or wrist which either turns the palm of the hand upwards or turns the palm downwards.
In isolated cases of dislocations, they are likely to occur from hyperpronation or hypersupination injuries. Remember that falling onto an extended hand is likely to occur along with fractures to either or both bones.
Management
If an individual is suspected with a distal radioulnar joint dislocation, it is vital to seek immediate medical care right away. An X-ray is taken to verify a diagnosis and check for any fractures.
A simple dislocation is easily managed by reduction where it is restored back into place. The wrist and forearm must be immobilized for up to 6 weeks to allow the soft tissues to heal. A rehabilitation program should be started to restore full movement and strength of the wrist.
As for complex cases, surgery is required to reduce the bones and fix any fractures. After a period of immobilization after surgery, a rehabilitation program is started.
Quick Note / Disclaimer
The material posted on this page on distal radioulnar joint subluxation is for learning and educational purposes only. To learn to recognize and manage joint injuries, register for a first aid and CPR course with Saskatoon First Aid.