Flashcards in Introduction to surgery of the hand Deck (32):
What is the palmar fascia?
Tough layer anchoring skin to skeleton
Extension of forearm fascia
What is the palmar fascia tightened by?
Give the clinical disorder of the palmar fascia
What is Dupuytren’s disease?
Thickening of fascia
List some risk factors for Dupuytren's disease
What is the clinical relevance of the flexor tendons?
Describe trigger fingers
Catching of tendons at A1 pulley
Thickening of sheath
What causes trigger fingers?
Change of direction of tendon
Name some nerve problems
Where is the median nerve tested?
Where is the radial nerve tested?
Web between d1 and d2
Where is the ulnar nerve tested?
What is the carpal tunnel?
Tendons and median nerve pass through
What is the clinical significance of the carpal tunnel?
Carpal tunnel syndrome
What is carpal tunnel syndrome?
Median nerve compression at wrist
What are the effects of carpal tunnel syndrome?
Nerve function. 3 of thenar muscles & sensory symptoms in the radial half of the hand.
List the thenar muscles
What is the function of the thenar muscles
List the signs of carpal tunnel
Loss of abduction
Loss of opposition
What is cubital tunnel syndrome?
Ulnar nerve compression at elbow
Fascial compression @ 3 sites
What is the effect of cubital tunnel syndrome?
Nerve function. Forearm & hand muscles, sensory symptoms ulna half of hand.
What muscles are involved in cubital tunnel syndrome?
Flexor digiti quinti
FCU, FDP (m/r/l)
Describe the interosseous muscles
Insertion to proximal phalanx
Insertion to extensor hood
Which nerve innervates the interosseous muscles?
List the signs of compression of the ulna nerve
Wasted hypothenar web spaces
Paradoxical wasting thenar
Clawing of digits
Describe the extensor tendons
Extend MCP joints of fingers
12 in all
Some multistranded (APL/EDC/EDQ)
Describe de Quervain's disease
Triggering and pain of thumb extensors
What causes de Quervains disease?
Ciprofloxacin - antibiotic
Anastrazole - breast cancer
Describe ruptures of the dorsal extensors
Describe the digital extensor hoods
Complex multibundle flat tendon
State the number of different bones within the hand
3 phalanges in fingers
2 phalanges in thumb
2 sesamoids in thumb
8 carpal bones