Title: DeQuervains versus Intersection Syndromes<br/>Author: Michael Bond<br/><a href='http://umem.org/profiles/faculty/78/'>[Click to email author]</a><hr/><p>
<u><b>DeQuervain and Intersection Syndromes:</b></u><br />
</p>
<ul>
<li>
DeQuervain's Syndrome (Tenosynovitis of the Abductor Pollicus Longus and Extensor Pollicus Brevis tendons) is a common disorder that has received a lot of press lately as BlackBerry Thumb or Gamer's Thumb.
<ul>
<li>
This condition can be diagnosised by the Finklestein test [Have the patient bend their thumb into the palm of their hand, and then make a fist. They should then ulnar deviate their wrist. Pain along the tendons secures the diagnosis.]</li>
<li>
The pain of DeQuervain's syndrome is typically along the distal end of the radius at the base of the thumb.</li>
</ul>
</li>
<li>
Intersection syndrome is a less common disorder though closely related to DeQuervain's Syndrome
<ul>
<li>
The pain is usually felt on the top of the forearm about three inches proximal to the wrist. </li>
<li>
The pain from this condition is due to tenosynovitis of the Extensor carpi radialis longus and Extensor Carpi radialis brevis muscles/tendons caused by the intersection of them with the Extensor pollicus brevis and Abductor pollicus longus tendons.</li>
<li>
Occurs due to excessive wrist movements.</li>
<li>
Intersection syndrome can be seen in weight lifters, skiers, and can be seen in homeowners in the fall and winter when they rake a lot of leaves or shovel snow.</li>
</ul>
</li>
<li>
Treatment is the similar for both conditions and consists of:
<ul>
<li>
NSAIDS</li>
<li>
Cortisone injections can be effective</li>
<li>
Thumb and wrist immobilization with a Thumb Spica Splint or Cock Up Wrist Splint</li>
</ul>
</li>
</ul>