Hip Disarticulation/Hemipelvectomy

Question 1

what is lost

Answer 1

all fxns of the foot, ankle and hip joints

Question 2

what are they deprived of

Answer 2

limb to motor prosthesis

Question 3

indications

Answer 3

cancer

trauma

Question 4

surgery

Answer 4

RL/fluid filled sac

will always try to save as much as possible

Question 5

socket fxn

Answer 5

stabilize RL and internal organs

support BW

suspend the prosthesis

provide rotational stability

Question 6

support BW –> socket fxn

Answer 6

any remaining bone –> ischial tubs, sacrum, pelvis

glute max

Question 7

suspend the prosthesis –> socket fxn

Answer 7

over iliac crest

may use a shoulder strap

Question 8

control the prosthesis –> socket fxn

Answer 8

control of the joints (knee and hip) to flex and extend

Question 9

provide rotational stability –> socket fxn

Answer 9

movement around RL

Question 10

socket types

Answer 10

Canadian bucket or ischial containment (total contact)

Question 11

what does the shape of the socket depend on

Answer 11

shape of RL

types of remaining tissue

Question 12

reliefs –> canadian bucket

Answer 12

bony prominences that remain

Question 13

WB –> canadian bucket

Answer 13

ischial tubs and glute max

Question 14

suspension –> canadian bucket

Answer 14

iliac crest

shoulder strap

Question 15

can be –> canadian bucket

Answer 15

flexible or rigid

Question 16

flexible socket –> canadian bucket

Answer 16

1/2 flexible and 1/2 rigid

carbon fiber on ipsilateral side to attach hip joint and support RL

Question 17

biomechanics

Answer 17

medial/lateral stabilization

anterior/posterior

Question 18

medial/lateral stabilization

Answer 18

shift of COG to sound side

narrow BOS (3”)

no M/L motion in the hip joint (less movement control)

Question 19

anterior/posterior

Answer 19

stability

mobility

swing

Question 20

stability –> A/P

Answer 20

TF knee control/hip extension

TKA line

maximum involuntary alignment (posterior to hip, anterior to knee)

Question 21

mobility –> A/P

Answer 21

initiate flexion

extension bumper behind hip joiny

compress at HO + PPT

Question 22

swing –> A/P

Answer 22

extension aid (stride length control strap)

Question 23

HS –> gait

Answer 23

knee extends

Question 24

MS –> gait

Answer 24

very stable

Question 25

HO –> gait

Answer 25

extension bumper

Question 26

TO –> gait

Answer 26

PPT and vaulting

Question 27

swing –> gait

Answer 27

knee flexion (extension aid)

hip flexion (extension aid)

Question 28

component variations

Answer 28

ottobock helix 3D

endo-light

Question 29

ottobock helix 3D

Answer 29

hip c-leg

Question 30

what does ottobock helix 3D have

Answer 30

hydraulic control and multi-axis joint to compensate for pelvic rotation

while promoting a natural and symmetrical gait pattern

Question 31

what does ottobock helix 3D permit

Answer 31

leg length reduction during swing phase

Question 32

endo light

Answer 32

4 bar hip joint

hydraulic

pneumatic

Question 33

Hip prosthesis

Answer 33

SA w/ not friction

ottobock helix

polycenturic

Question 34

knee prosthesis

Answer 34

SA mechanical knee

mauch hydraulic

micropressor knee

Question 35

foot prosthesis

Answer 35

SACH

dynamic response foot

Question 36

tx considerations

Answer 36

edema

sound limb

prosthetic control of pelvis

Question 37

edema –> tx

Answer 37

RL is pelvis

use girdle or spica ACE wrap

Question 38

sound limb –> tx

Answer 38

strengthening

protection

Question 39

prosthetic limb control of pelvix –> tx

Answer 39

teach pelvic isolation

PPT/pelvic clocks

trunk stability

Question 40

tx program should include

Answer 40

wrapping

weight shifting

trunk movements w/ pelvis isolation

scar mobs

weight training for sound limb

UE exercise

pelvic stabilization exercise