DeQuervain's Tenosynovitis | Snuffbox Anatomy, Diagnosis, & Special Tests

The video tutorial covers the anatomy of the anatomical snuff box, its boundaries, and the structures it contains. It explains De Quervain's Tenosynovitis, a chronic overuse injury affecting specific tendons, and discusses its causes and symptoms. The video also details diagnostic tests, Finkelstein's and Icofx, highlighting their differences and effectiveness. It concludes with a comparison of test specificity and recommendations for accurate diagnosis.

What is the anatomical snuff box primarily defined by?

• The ligaments of the hand

• The muscles of the forearm

• The tendons surrounding it

• The bones of the wrist

Which structures pass through the anatomical snuff box?

• Brachial artery, deep branch of the radial nerve, basilic vein

• Radial artery, superficial branch of the radial nerve, cephalic vein

• Ulnar artery, median nerve, basilic vein

• Ulnar artery, deep branch of the ulnar nerve, cephalic vein

Which tendons are most commonly affected in De Quervain's Tenosynovitis?

• Extensor pollicis longus and flexor carpi radialis

• Flexor pollicis longus and extensor carpi ulnaris

• Extensor pollicis brevis and abductor pollicis longus

• Abductor pollicis brevis and flexor carpi ulnaris

What type of movement is most likely to cause pain in De Quervain's Tenosynovitis?

• Pronation of the forearm

• Extension of the fingers

• Flexion of the wrist

• Radial and ulnar deviation

How is Finkelstein's test performed?

• Actively by the patient

• With the patient lying down

• Passively by the therapist

• With the patient standing

Which test has a higher specificity for diagnosing De Quervain's Tenosynovitis?

• Neither test is specific

• Both have the same specificity

• Finkelstein's test

• Icofx's test

Why might Icofx's test result in false positives?

• It does not involve the thumb

• It is performed incorrectly

• It is a more painful version of the test

• It is less painful than Finkelstein's test