Putting it all together HAND SHIT

Question 1

Which Deformity is described: Central slip disruption changes tension on lateral bands which slip down below the axis of flexion of the PIP joints causing a posture of flexion

A. Boutonniere Deformity
B.Mallet Finger
C. Swan Neck Deformity

Answer 1

A. Boutonniere Deformity

Question 2

T/F Mallet finger can lead to a swan neck deformity

Answer 2

True

Question 3

Which deformity is described: Extensor mechanism injury to terminal tendon at DIP. DIP is in flexion and can become contracted.

A. Boutonniere Deformity
B. Mallet finger
C. Swan Neck Deformity

Answer 3

B. Mallet Finger

Question 4

Name 2 causes of Swan Neck Deformity. There are 4 causes total.

Answer 4

1. An unchecked mallet finger
2. Terminal tendon like the lateral bands, or retinacular ligament is cut or torn
3. Intrinsic tightness from Rhematoid Arthritis (RA) or Cerebral Palsy (CP)
4. Ischemic changes (like in compartment syndrome)

Question 5

Which deformity is described: DIP flexes due to flexor digitorum profundus. Lateral bands slip dorsal to PIP joint, pulling PIP into hyperextension.

A. Boutonniere Deformity
B. Mallet Finger
C. Swan Neck Deformity

Answer 5

C. Swan Neck Deformity

Question 6

_______ -tightness or contracture of lumbricals, & interossei

Answer 6

Intrinsic plus hand

Question 7

______-occurs due to low ulnar nerve injury, like a laceration at the wrist

Answer 7

Intrinsic minus hand

Question 8

What is the functional significance of intrisic minus hand after low ulnar nerve injury? 4 things

Answer 8

1. Impaired grip strength
2. Decreased span of grip to hold larger items
3. Thumb loses it stabilizer for pinch (adductor)
4. Impaired stability of the MP joints during motion

Question 9

What does intrinsic minus hand look like with a combined low ulnar nerve and median nerve injury?

Answer 9

Condition affects all fingers and thumb
Clawing of all digits
Atrophy to thumb
Thumb cannot oppose digits for pad to pad or tip to tip precision

Question 10

Name the Treatments for low ulnar and median nerve injury (4)

Answer 10

Anticlaw grip
PROM to avoid contracture
Strengthening of muscles
Surgery for tendon transfer

Question 11

What are four causes of tenosynovitis (trigger finger)?

Answer 11

1. Repetitive activity
2. Trauma
3. Inflammation and infection
4. Rheumatoid Arthritis causes synovial thickening

Question 12

Where does flexor tenosynovitis (trigger finger) typically occur?

Answer 12

A-1 pulley of thumb

Question 13

What are a few treatment method for trigger finger?

Answer 13

full time splint, ROM exercises to avoid stiffness or contracture, NSAIDs, corticosteroid injections, activity modification

Question 14

T/F a power grip results in flexion of all fingers and may include the thumb

Answer 14

True

Question 15

Name the Prime Movers for Hook Grip

2-4

Answer 15

1. Flexor digitorum superficialis
2. Flexor digitorum profundus

IF thumb is in extension, THEN

3. extensor policis brevis
4. extensory policis longus

Question 16

Name the prime movers for cylindrical grip

5-6

Answer 16

1. Flexor digitorum superficialis
2. Flexor digitorum profudus
3. Interossei and lumbricals
4. Flexor policis longus
5. Thenar muscles
6. Sometimes hyperthenar muscles

Question 17

Name Prime Movers for spherical grip

Answer 17

1. interossei
2. extensors important for stabilizing
3. FDS
4. FDP
5. FPL
6. Thenar mucles
7. Hyperthenar muscles

Question 18

Name the prime movers for lumbrical/plate grip

Answer 18

1. lumbricals