17

Question 1

which metacarpals are the most weight bearing

Answer 1

3, 4

(2-5)

Question 2

joints of carpal bones

Answer 2

antebrachiocarpal
middle carpal
carpal metacarpal

Question 3

joint with the most motion in the foot

Answer 3

tarsocrural joint

Question 4

layers of digital pad

Answer 4

stratified epithemium
dermis
subcutaneous

Question 5

the outermost layer of digital pad is used for

Answer 5

Stratified epithelium

• Stratified corneum (thickest outer layer)
• wear/impact/friction

Question 6

the 2nd layer of digit

Answer 6

Dermis

• Forms papillary projections into the epithelium layer
• Aid in cushioning from ground reaction forces
• Eccrine glands

Question 7

the innermost layer of the digital pad

Answer 7

Subcutaneous layer
* Adipose
* Softest
* Distributes force

Question 8

healing challenges for foot injury

Answer 8

• Weight bearing
• Friction
• Shear
• Contamination

Question 9

keys to success for wound healing in paw pad

Answer 9

Preserve weight bearing surfaces
* Digital pads 3/4
* Metatarsal/metacarpal pads
* Digital pad 5

• Minimize tension and motion
• Protect from environmental contamination
• SET OWNER EXPECTATIONS

Question 10

repair options for paw pads

Answer 10

• Primary closure
• Secondary intention healing
• Local tissue flaps- Phalangeal fillet
• Free tissue graft: Paw pad grafts and Free skin grafts
• Amputation
• Prosthetics

Question 11

where can you not place free skin graft

Answer 11

• tendon/ligament/ bone- graft does not have its own blood supply
• infected, high motion areas