Flashcards in Quiz 1 Deck (86)
which type of orthotic plastic can be reheated?
what type of plastic can NOT be reheated?
what is considered when designing an orthotic?
ease of donning/doffing
size and contour
how is bending moment determined
by the location and magnitude of the sheer forces
how are shear forces controlled
by strap location, strap tightness and width of the straps
the longer the orthosis......
the greater the leverage
what are the disadvantages of orthotics
what are flexible trunk orthoses (belts and corsets) mainly used for?
used mainly for symptom management in people with back pain
corsets are used to decrease pain by unloading the spine via increasing intra-abdominal pressure
sacroiliac belts increase passive stability`
what are postural training orthoses intended for?
improve body awareness; NOT correct deformity
goal of rigid spinal orthoses
limit spinal movement
protect the spine
*** it uses a 3 point counter force system to control movement in the desired plane
what is the 3 column concept
wedge fractures involve the anterior column
burst fractures involve both the anterior and middle column
a fracture is labeled unstable if 2 adjacent columns are involved. They usually require surgical fixation, bracing or both
what are the 3 kinds of rigid LSOs
what motion does a chairback LSO control?
controls flexion and extension
what kind of motion does a knight LSO control
controls flexion/extension and lateral flexion
what motion does a body jacket LSO control
controls all planes of motion
what levels of the spine doe TLSOs control
T5 - L4
What motion are TLSOs more effective at controlling than LSOs
TLSOs are better at controlling rotation
why is the lumbosacral region hard to stabilize?
this region has the greatest range for flexion/extension and bears the most load making it difficult to control
what TLSO controls flexion
the Jewett and the CASH
What TLSO controls flexion and extension
what motion does the taylor knight spinal TLSO control
what population uses hyperextension braces and why
patients diagnosed with osteoporosis who had a compression fracture. the 3 point counterforce system prevents flexion
what are the indications for use of an occian back
for critically ill patients that have poor skin assessment
for patients unsafe to turn due to instability
for those not awake or alert within 24-48 hours after admission
for those with pre-existing burns, skin injuries or lacerations
** patients who want improved nighttime comfort
what is significant about the Philadelphia collar
stabilizes pt immediately after trauma
gives access to trach and carotid
what is an advantage of the aspen vista collar?
it is adjustable to 6 different settings which reduces the need for inventory and also reduces skin breakdown while slicking away moisture
what orthosis proves the best stability for both the lower cervical and upper thoracic spine
what device gives the most stable immobilizaton
it is the only way to stabilize the occiput to C2
what gives the most effective method of immobilizing C1-C2
the minerva which is a halo that does not drill into the skull
what is the purpose of bracing
to prevent progression of curve to a level as the patient grows
it is not intended to be curative