WC Flashcards
seat height
heel to popliteal fold,
add 2 inches
average: 19.5-20.5
seat depth
from posterior buttock to popliteal,
subtract 2 inches
average: 16 inches
seat width
widest aspect of buttocks, hips or thighs.
add 2 inches
average 18 inches
back height
seat to floor of axilla with shoulder flexed to 90 degrees,
subtract 4 inches
average 9 inches above seat
ultralight frame
high active
no need for postural supports
sports
standard/lightweight frame
self propel with both Use
adequate LE ROM
sitting ability
hemi frame
self propel with LEs
one-hand drive frame
self propel with one UE
amputee frame
self propel
COG shifted posteriorly d/t amputation
geri chair
not able to self propel or safely operate power
requires assistance for seated mobility
reclining frame
unable to perform weight shifts/sit upright for extended periods of time
moderate to sever trunk involvement
backward tilt in space frame
unable to sit upright/weight shift, also has issues with sliding or extensor tone
planar posterior head rest
reclining or tilt in space frame or tends to maintained hyperextended head/neck
curved headrest
maintain backwards listing or lateral head and neck position in sitting
side panels may be indicated for more aggressive support
sling back
no postural support and no neuromuscular deficits
short term use
planar back
patient requires mild to moderate trunk support due to tone, strength, or deformity
curved back
moderate trunk support due to tone, strength, deformity related postural concerns
custom molded insert
significant trunk support d/t sever postural concerns
removable back insert
w/c must be able to fold
back height below inferior angle of scap
patient is able to self propel and has good trunk control
back height above inferior angle of scapula
either self propel but requires some spinal support or uses power w/c with or without poor trunk control
sling seat
no postural support and no NM deficits,
short term use
planar seat
patient has no seated deformity
curved seat
requires mild to moderate
custom molded seat
requires customized seat support to correct for pelvic obliquity or a fixed asymmetrical deformity
removable seat insert
w/c must be able to fold
bevel front edge of seat
propels using LEs
planar lateral supports
requires mild-mod lateral support d/t listing or scoliosis
contoured or curved lateral supports
requires total contact lateral support for sig lateral listing of scoliosis
chest strap
requires trunk support to correct for anterior listing
chest harness
requires both trunk and shoulder support to correct for anterior listing
removable armrest
tf via slide board or max x 2; access to wheels for propulsion
no armrests
doesn’t require UE or trunk support
full length arms
performs STS tf; requires additional postural support
utilizes a lap board
tubular or single posted arms
minimal support for UE
easy assess to wheels for propulsion
easy removal of arms
fixed/non removable
durable UE support
toggle/lever breaks
coordinated motor ability to operate
brake extension
additional leverage to operate toggle
limited ability to reach break mechanism
attendant operated break
cannot safely or I operate breaks
small diameter handrims
adequate strength to efficiently propel chair w/out adaptation
for requiring speed for tasks
large diameter handrims
some weakness in UE
for pts requiring ability to propel with more power
rim projections
grip deficits or hand deformity
covered rims
assist for adequate grasp or friction when hands in contact with wheel rims
standard footrest
full ROM through feet and ankles
adjustable angle footrests
some degree of deformity in feet and/or ankles
one piece footboard
supportive surface to maximize strength
patient requires additional lateral foot support
custom foot box
LE not aligned with body midline as with windswept deformity
angle or support needs are ID’d
proportional control
allow user to modulate speed based on displacement of joystick
360 degree directionality
non-proportional control
moves at preset speed
user must release joystick to change directions
sip and puff control
high level SCI
based on force of inhalation/exhalation
head control
via electric switch and configurations vary
bariatric WC
weight limits between 300-1000 lbs
liquid cushions
typically lightweight
can produce high shear forces
solid cushions
limit shear forces
but are heavier than other alternatives
air filled cushion
vary in average sheer forces
lightweight
require diligent monitoring
