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21 Cards in this Set
- Front
- Back
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Insufficient knee flexion occurs |
Between heel strike and midstance |
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Insufficient knee flexion is... |
- Excessive plantar flexion of the foot -Soft heel cushion or plantar flexion bumper - posterior displacement of the socket -antero-distal residual limb discomfort - weak quadriceps -habit |
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Excess lateral thrust of prosthesis is... |
- Excessive medial placement of the prosthetic foot - abducted socket - laxity in the lateral collateral ligaments |
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Excess lateral thrust of prosthesis occurs... |
At midstance |
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Medial thrust (valgus) of the prosthesis occurs... |
At midstance |
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Medial thrust (valgus) of the prosthesis is... |
- Excessive lateral placement of the prosthetic foot - excessive inversion of the prosthetic foot - laxity in the medial collateral ligaments |
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Early knee flexion (drop off) is |
-Too soft or shortened keel or toe lever - shoe heel height is too high for the prosthetic foot |
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Early knee flexion (drop off) occurs.... |
- Between midstance & heel off - weight bearing period on the prosthetic side is abruptly shortened |
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External rotation is... |
- too dense of a heel cushion or issues with f or of socket on residual limb - excessive foot plantar- flexion or excessive hardness of the fore foot |
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External rotation occurs.... |
- heel strike -late stance |
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Pistoning occurs... |
During alternate weight bearing and non weight bearing phases of gait |
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Pistoning is... |
-Socket is too large - insufficient suspension of the prosthesis |
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Lateral trunk bending is... |
- weak hip abductors -abducted socket - insufficient support at lateral socket wall - pain is on the lateral distal aspect of the residual limb (bone spur) -short prosthesis - prosthetic foot is out set |
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Lateral trunk bending occurs... |
At midstance |
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Circumduction occurs... |
During swing phase |
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Circumduction happens if... |
- prosthesis is too long - insufficient knee flexion - excessive knee friction - pistoning - medial brim of the socket too high - excessive plantar flexion of prosthetic foot |
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Vaulting occurs |
At swing phase |
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Vaulting happens if... |
- Prosthesis is too long - excessive prosthetic knee friction |
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Swing phase whips occurs |
- at and just after toe off - can be medial or lateral - named for the direction that the heel moves |
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Lateral Swing phase whips are... |
Excessive internal rotation of the prosthetic knee joint axis or the prosthesis was donned in internal rotation |
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Medial swing phase whip |
Excessive external rotation of the prosthetic knee joint axis or donning on external rotation |
