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ARTHROPLASTY EXAM 2024/2025 QUESTIONS AND ANSWERS
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ARTHROPLASTY EXAM 2024/2025 QUESTIONS AND ANSWERS
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ARTHROPLASTY EXAM 2024/2025 QUESTIONSAND ANSWERS
what is it and what are the most common uses?
reconstruction or replacement of a joint to relieve pain, improve or maintain ROM, and correct
deformity. The most common uses of arthroplasty are for patients with OA, RA, avascular
necrosis, congenital deformities or dislocations, and other systemic problems.
what are three different types?
including surgical reshaping of the bones of the joints, replacement of part of a joint
(hemiarthroplasty), and total joint replacement
replacement arthoplasty is available for what?
elbows, shoulders, phalangeal joints of the fingers, wrists, hips, knees, ankles, and feet.
what can a THA be used for?
OA, RA, and other conditions. Partial and total hip replacements are also used to treat hip
fractures.
how is a THA done?
prosthesis (implant) replaces the ball and socket joint and upper shaft of the femur
,what is the difference between cemented and non cemented THA?
The socket can be "cemented" in place with polymethyl methacrylate, which bonds to the bone.
The socket may also be inserted and not cemented ("cementless"). Cementless THAs may
provide longer-term prosthesis stability by facilitating biologic ingrowth of new bone tissue into
the porous surface coating of the prosthesis.
who is cementless usually done on? like what age group?
Although some surgeons use cementless devices for all patients, they are most often
recommended for younger, more active patients and patients with good bone quality where bone
ingrowth into the components can be readily achieved.
what is hip resurfacing?
An alternative to hip replacement is hip resurfacing, which allows the femoral head to be
preserved and reshaped rather than replaced. (In contrast, in a THA the prosthesis replaces the
femoral head.)
-resurfaced femoral head (ball) is then capped by a metal prosthesis
hip resurfacing is perferable in what age groups?
Hip resurfacing is a more favorable option for younger, active patients.
how long do you have to wait after resurfacing to start physical activity again?
, there is generally a 6-month waiting period before strenuous activity until strong muscles are
built around the joint
Patients receiving a smaller femoral head have a higher rate of what? as compared to what?
Patients receiving a smaller femoral head (including many women) have a higher failure rate
with a resurfaced implant when compared with patients receiving a THA
main indications for total knee arthroplasty (TKA)?
Unremitting pain and instability as a result of severe destructive deterioration of the knee joint
are the main indications for total knee arthroplasty (TKA)
what may be used to immobilize the knee after surgery?
A compression dressing may be used to immobilize the knee in extension immediately after the
operation
what is removed before DC and what is it replaced with? how long is this worn?
This dressing is removed before discharge and may be replaced with a knee immobilizer or
posterior plastic shell, which maintains extension during ambulation and at rest for about 4
weeks
is dyslocation typical with TKA?
NO
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