Exam 5: Transfemoral Gait Deviations Flashcards
Gait deviations you are likely to see intial contact to loading response
- Rotation of prosthetic foot at initial contact
- instability of prosthetic knee
- Foot slap
Problem with amputee that may lead to rotation of prosthetic foot at initial contact
too vigorous extension of knee by amputee
Problems with prosthesis that may lead to rotation of prosthetic foot at IC (2)
- heel cushion too firm/ too hard PF bumper
- loose socket
Problems with amputee that may result in instability of P.knee during IC and LR
- weak hip extensors
- significant flexion contracture- the more severe the contracture, the earlier in stance it cause instability; therefore most contractures cause problems in or near mid-stance
Problems with prosthetic that may result in instability of P.knee during IC and LR (4)
- unstable knee (too far anterior to Tr-Kn-An line)
- too firm heel cushion or PF bumper
- insufficient flexion in socket
- heel too high or excessive dorsiflexion
Reasons foot slap may occur (2)
Prosthetic: Posterior bumper too soft
Amputee: forceful driving of prosthesis into ground to ensure knee stability
Gait Deviations you are likely to observe in Mid-stance
- Ipsilateral bending of trunk
- Contralateral bending of trunk
Problems with the amputee that may cause I-lat trunk leaning during mid-stance
- very short RL
- habit/fear/poor balance
- weak abductors
- abduction contracture
- habit or poor gait training (inadequate weight shifting)
Problems with the prosthesis that may cause I-lat trunk leaning during mid-stance (4)
- too short
- lateral wall allows too much abduction of femur
- foot outset
- distal lateral RL pain
Problem causing contralateral trunk lean during
mid-stance
cotch pressure
Gait Deviation likely to be observed terminal stance to pre-swing
Drop-off at end of stance
Problems that may cause drop-off at end of stance
Amputee: nothing
Prosthesis:
- inadequate limitation of DF
- too soft DF bumper
- toe break too far posterior
- socket too anterior on pilon
- foot too posterior
Gait deviations you are likely to see dring intial swing (4)
- excessive heel rise
- excessive pistoning
- lateral whip
- medial whip
Problems with amputee that may cause excessive heel rise during initial swing
forcible hip flexion
Problems with prosthesis that may cause excessive heel rise during initial swing (3)
- insufficient friction at knee
- inadequate extension aid
- improper knee selection
Problems that may cause excessive pistoning during intial swing
Amputee: may occur w/ lg. flabby RL w/ poor muscle control
Prosthesis: pt. not seated in socket (socket too big or improperly donned)
Problem with amputee that may cause lateral whip during initial swing
improper donning
Problem with prothesis that may cause lateral whip during initial swing
too much IR at knee
Problem with amputee that may cause medial whip during initial swing
improper donning