PROSTHETIC CPM ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE
●● TT Bench Alignment
Answer: 5* socket flexion (+contracture)
5* socket adduction (or match sound)
Foot: 37mm posterior to midline (SACH) or 1/3 of foot (DR)
Foot: 12 mm inset to midlineder
●● Info for Px Eval
Answer: 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
Condition of residual limb
Condition of contralateral/upper extremities
K-level/AMP
●● K0
Answer: The patient does not have the ability or potential to ambulate or
transfer safely
●● K1
Answer: Prosthesis for transfers or ambulation at fixed cadence;
household ambulator
●● K2
Answer: Ability to traverse low level environmental barriers; limited
community ambulator, fixed cadence
●● K3
Answer: Ambulation at variable cadence; prosthetic utilization beyond
simple locomotion; "unlimited" community ambulator, traverse most
environmental barriers
, ●● K4
Answer: Exceeds basic ambulation skills, exhibiting high impact, stress,
or energy levels; child, active adult, or athlete.
●● K1 feet
Answer: SACH, Single axis, safe
●● K2 feet
Answer: Multiaxial, flexible keel
●● K3-4
Answer: Dynamic response (also often multiaxial)
With vertical shock
Shock & torque absorbers
●● External power feet
Answer: K1-3, all cadence/terrain
Pros: propulsion, dorsi/plantarflexion
Cons: batteries/weight/cost/processing speed
●● Single axis feet
Answer: Pros: inexpensive, durable
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE
●● TT Bench Alignment
Answer: 5* socket flexion (+contracture)
5* socket adduction (or match sound)
Foot: 37mm posterior to midline (SACH) or 1/3 of foot (DR)
Foot: 12 mm inset to midlineder
●● Info for Px Eval
Answer: 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
Condition of residual limb
Condition of contralateral/upper extremities
K-level/AMP
●● K0
Answer: The patient does not have the ability or potential to ambulate or
transfer safely
●● K1
Answer: Prosthesis for transfers or ambulation at fixed cadence;
household ambulator
●● K2
Answer: Ability to traverse low level environmental barriers; limited
community ambulator, fixed cadence
●● K3
Answer: Ambulation at variable cadence; prosthetic utilization beyond
simple locomotion; "unlimited" community ambulator, traverse most
environmental barriers
, ●● K4
Answer: Exceeds basic ambulation skills, exhibiting high impact, stress,
or energy levels; child, active adult, or athlete.
●● K1 feet
Answer: SACH, Single axis, safe
●● K2 feet
Answer: Multiaxial, flexible keel
●● K3-4
Answer: Dynamic response (also often multiaxial)
With vertical shock
Shock & torque absorbers
●● External power feet
Answer: K1-3, all cadence/terrain
Pros: propulsion, dorsi/plantarflexion
Cons: batteries/weight/cost/processing speed
●● Single axis feet
Answer: Pros: inexpensive, durable
