Question:
Muscles affected in De quervain tenosynovitis -
Muscles affected in De quervain tenosynovitis -
Updated On: Jul 12, 2025
- Abductor pollicis longus and extensor pollicis brevis
- Adductor pollicis longus and extensor pollicis brevis
- Abductor pollicis longus and Flexor pollicis brevis
- Adductor pollicis longus and Flexor pollicis brevis
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The Correct Option is A
Solution and Explanation
De Quervain's tenosynovitis is a condition that affects the tendons on the thumb side of your wrist. It is a painful condition due to the inflammation of the tendon sheaths, particularly affecting two specific muscles:
- Abductor Pollicis Longus: This muscle is responsible for abducting the thumb. It helps in moving the thumb away from the hand.
- Extensor Pollicis Brevis: This muscle extends the proximal phalanx of the thumb and is crucial for thumb movement.
The condition is characterized by pain and swelling near the base of the thumb. The inflammation causes the tendons to become restricted in their movement, leading to discomfort and reduced range of motion. The most common cause is repetitive hand or wrist motion.
The correct option is:
- Abductor pollicis longus and extensor pollicis brevis
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