Carpal Tunnel Syndrome | Presentation, Diagnosis, & Special Tests

The video tutorial covers the anatomy of the carpal tunnel, including its boundaries and contents. It explains carpal tunnel syndrome, its causes, symptoms, and mechanisms of injury. The tutorial also discusses diagnostic methods, including nerve conduction studies and special tests like Phalen's and Tinel's tests.

What forms the palmar boundary of the carpal tunnel?

• Hook of hamate

• Scaphoid bone

• Flexor retinaculum

• Transverse carpal ligament

Which nerve is primarily affected in carpal tunnel syndrome?

• Radial nerve

• Sciatic nerve

• Ulnar nerve

• Median nerve

Which of the following is a common cause of carpal tunnel syndrome?

• Overuse of wrist movements

• Lack of exercise

• Excessive sleep

• High protein diet

What is an early symptom of carpal tunnel syndrome?

• Severe headache

• Numbness at night

• Muscle atrophy

• Back pain

Which muscles are affected by the compression of the median nerve in carpal tunnel syndrome?

• Hypothenar eminence muscles

• Thenar eminence muscles

• Triceps brachii

• Biceps brachii

What is the gold standard for diagnosing carpal tunnel syndrome?

• Ultrasound

• X-ray

• Nerve conduction study

• MRI scan

What is the sensitivity of Phalen's test for carpal tunnel syndrome?

• 50%

• 90%

• 70%

• 84%

Which test involves percussing along the wrist crease?

• Phalen's test

• Tinel's test

• Hand elevation test

• Square wrist sign

What is the purpose of the hand elevation test?

• To measure wrist strength

• To reproduce paresthesias

• To assess range of motion

• To evaluate grip strength

What does a positive square wrist sign indicate?

• Normal wrist anatomy

• Decreased wrist strength

• Swelling in the carpal tunnel

• Increased wrist flexibility