Foot: 37mm posterior to midline (SACH) or 1/3 of foot (DR)
Foot: 12 mm inset to midlineder
Info for Px Eval - -Name, Age, DOB, Sex
Ht, Wt
Meds, comorbidities
Amp site/cause/date
ADLs/vocational/avocational
Goals!
Home status/environment
Work status/environment
PT/OT, assistive devices used
Current/previous px treatment
MMT, ROM
Sensation
, Prosthetic CPM| Questions with 100% correct Answers |
Verified
Condition of residual limb
Condition of contralateral/upper extremities
K-level/AMP
K0 - -The patient does not have the ability or potential to ambulate or transfer safely
K1 - -Prosthesis for transfers or ambulation at fixed cadence; household ambulator
K2 - -Ability to traverse low level environmental barriers; limited community
ambulator, fixed cadence
K3 - -Ambulation at variable cadence; prosthetic utilization beyond simple
locomotion; "unlimited" community ambulator, traverse most environmental barriers
K4 - -Exceeds basic ambulation skills, exhibiting high impact, stress, or energy
levels; child, active adult, or athlete.
K1 feet - -SACH, Single axis, safe
K2 feet - -Multiaxial, flexible keel
K3-4 - -Dynamic response (also often multiaxial)
With vertical shock
Shock & torque absorbers
External power feet - -K1-3, all cadence/terrain
Pros: propulsion, dorsi/plantarflexion
Cons: batteries/weight/cost/processing speed
Single axis feet - -Pros: inexpensive, durable
Cons: rigid forefoot, not energy efficient, not suitable for uneven surfaces
, Prosthetic CPM| Questions with 100% correct Answers |
Verified
SACH feet - -Pros: provides stability in early stance
Cons: DF stop increases knee hyperextesion
Flexible keel - -Pros: provides easy rollover, smooth transition from heel strike to toe
off, allows natural sagittal plane motion, reduces socket foreces on residual limb, improves
walking safety, reliable
Cons: limited push off, increased cost
Multiaxial feet - -Pros: Accommodates uneven terrain, decreases stress on skin and
prosthesis
Con: Increased weight/maintenance, cost
Dynamic Response feet - -Pros: use with increased activity level, energy storing,
reduces impact to joints and the residual limb, decreased walking effort/increased push off
Cons: increased cost/weight
K1-K2 knees - control - -Fiction/mechanical - single speed ambulators
May have manual lock feature
Weight activated stance control
K3-4 knees - control - -Fluid (cadence responsiveness) hydraulic or pneumatic
-Pros: variable cadence, swing and stance control, more natural gait
-Cons: increased weight/maintenance/cost
Microprocessor (fluid controlled by "computer chip")
Microprocessor knees - -Pros: improve environmental obstacle negotiation,
increased walking speed on uneven terrain, reduced falls, increased confidence
Cons: heavy
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