LE Amputation

Question 1

What is a Lisfranc’s amputation?

Answer 1

Amputation through tarsometatarsal junction

Question 2

What ABI indicates mild PAD?

Answer 2

0.7-0.9

Question 3

What is considered long, standard and short AKA?

Answer 3

Long = >60% residual limb
Standard = 35-60% residual limb
Short = <35% residual limb

Question 4

MCC of amputation ages 15-50

Answer 4

Trauma

Question 5

What is considered a long, standard and short BKA?

Answer 5

Long = >50% residual limb
Standard = 20-50% residual limb
Short = <20%

Question 6

Gold standard imaging test for PAD

Answer 6

Intraarterial contrast angiography

Question 7

MCC of amputation in ages 0-5

Answer 7

Congenital deformity

Question 8

What’s the shortest BKA you can have with residual limb still being functional?

Answer 8

1cm below tibial tuberosity

Question 9

What is a syme’s amputation?

Answer 9

Ankle disarticulation

Question 10

Hip disarticulation vs hemipelvectomy vs hemicorpectomy

Answer 10

Hip disarticulation = pelvis remains in tact
Hemipelvectomy = resection of lower half of pelvis
Hemicorpectomy = amputation of both lower limbs and pelvis

Question 11

Myodesis vs myoplasty

Answer 11

Myodesis is when muscle is sutured to bone.

Myoplasty is when muscles are sutured to each other

Question 12

What is considered too high of an ABI and may be considered abnormal?

Answer 12

> 1.3. May indicates calcified noncompressible vessels

Question 13

What are 2 unsatisfactory levels of amputation for a BKA?

Answer 13

1. Amputation through distal 2/5 of tibia (60% of residual limb) - below the gastroc-soleus
2. Very short BKA - above the tibial tuberosity

Question 14

What ABI indicates severe PAD

Answer 14

<0.4

Question 15

What ABI indicates moderate PAD?

Answer 15

0.4-0.7

Question 16

What is considered an unsatisfactory AKA level?

Answer 16

Very short AKA with Amputation through just below lesser trochanter

Question 17

MCC of amputation in ages 5-15

Answer 17

Cancer or trauma

Question 18

When a patient has dysvascularity and myodesis is contraindicated, what is the procedure of choice?

Answer 18

Myoplasty

Question 19

What is a contraindication to myodesis?

Answer 19

Dysvascularity

Question 20

If ABI screening for PAD is abnormal, what test can be done to localize the lesion?

Answer 20

Doppler velocity waveform analysis

Question 21

What is a Chopart amputation?

Answer 21

Amputation through the tarsal bones, sparing the calcaneus and talus

Question 22

What is considered normal ABI?

Answer 22

0.9 - 1.3

Question 23

An ankle pressure of what indicates limb threatening ischemia?

Answer 23

<50 mmHg