Transtibial Flash Cards!
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How far inset should the prosthetic foot be in relation to the transtibial socket?
Answer
1/2"-0" inset
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 389,513). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
True or false: A "stovepipe" prosthesis is often incorporates a foam liner. The type of foam used is usually an open cell foam, as it provides soft cushion.
Answer
False-Closed cell foam such as Pelite, as it is durable and is more water resistant as compared to open cell foams.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 475). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
During ambulation, the amputees knee appears to be buckling (flexing excessively) during mid-stand through terminal stance phase of gait. What may be causing this to occur?
Answer
1) An excessively dorsiflexed prosthetic foot.
2) Prosthetic foot is placed too far posteriorly, effectively shortening the toe lever.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 389-390). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
The dynamic response prosthetic foot provides the amputee with what major advantage. What is a major limitation of this foot design (hint not related to it's function).
Answer
Provides the user with a sense of dynamic responsiveness. It's primary limitation is cost.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 419). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
The ground reaction force vectors moves where in relation to the weight line, during mid-stance phase of gait?
Answer
Anterior. This provides an extension moment at the knee.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 477). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
Length of the prosthesis should be re-evaluated during static alignment by palpating this anatomical landmark while the amputee is weight bearing with equal weigh being placed on both limbs.
Answer
Illiac Crest, checking to assure a level pelvis is present. The prosthetic user should be able to stand comfortably and without excessive lumbar lordosis.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 385). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
This gait deviation occurs when the foot is too far inset.
Answer
Excessive varus momement.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 389). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
What are some common pressure tolerant areas of a transtibial residual limb?
Answer
1) Medial Shaft of tibia
2) Medial tibial flare
3) Anterior compartment (between fibula and lateral tibia)
4) Patellar ligament
5)Posterior compartment
6) Lateral Shaft of the fibula
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 511-512). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
What motion should occur at the knee during mid-stance, considering the mediolateral placement of the prosthetic foot is placed so that the foot is parallel to the floor at mid-stance.
Answer
Slight varus moment.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 478). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
During mid-stance phase of gait, the transtibial amputee generally experiences socket pressures where?
Answer
Proximal anterior and posterior distal.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 477). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
What type of prosthetic foot consist of a wooden keel and open cell foam rubber, located along the posterior third part of the foot?
Answer
Solid Ankle Cushion Heel (SACH) Foot
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 417-418). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.
The prosthetic pylon is leaning medially during stance phase of gait is likely a result of what?
Answer
1) Too much adduction in the socket.
2) Foot may be excessively outset.
Smith, D. G., Michael, J. W., & Bowker, J. H. (2004, p. 389). Atlas of amputations and limb deficiencies: Surgical, Prosthetic, and Rehabilitation Principles. American Academy of Orthopaedic Surgeons.