2
General Prosthetic Questions for ABC Written Exam with || || || || || || || ||
accurate detailed solutions || ||
Bench Alignment for TT - ✔✔- 5*to 10* flexion
|| || || || || || || ||
-2* to 5* adduction
|| || ||
-1/2" to 1" inset
|| || ||
-3* to 5* outward rotation or parallel to the LOP
|| || || || || || || || ||
-37mm posterior (18-65mm range)|| || ||
-1/4" anterior from ankle bolt to midline
|| || || || || ||
Bench Alignment for TF - ✔✔- 5* flexion + flexion contracture
|| || || || || || || || || ||
- Long's line + 2* to 5 *
|| || || || || || || ||
-outset foot 1" from ishium + 1*-2* ext
|| || || || || || ||
-5* external rotation of the knee
|| || || || ||
Cuff strap placement - ✔✔-1cm posterior and 1cm proximal to midline at PTB level
|| || || || || || || || || || || || ||
Silesian Belt placement - ✔✔-1/4" posterior and proximal to G.T. (Lateral)
|| || || || || || || || || ||
-1/4" proximal and medial to bisection (Anterior)
|| || || || || ||
Scrapa's Triangle - ✔✔-Ingiunal Ligament || || || ||
-Sartorious
-ADDUCTOR Longus ||
Cycle the Elbow in TH prosthesis - ✔✔-3/4" excursion
|| || || || || || || ||
,2
- 2lbs force
|| ||
Operation of TD and Elbow lift (Excursion) - ✔✔-2 1/2" to lift elbow
|| || || || || || || || || || || ||
-2" for TD || ||
Starting point for EFA - ✔✔- 1" distal and 1" anterior to elbow center
|| || || || || || || || || || || || ||
Hip Bench Alignment - ✔✔-joint anterior to knee center 25-50mm
|| || || || || || || || ||
-reference line knee center to 37mm posterior to heel || || || || || || || ||
-1/2" anterior and 1" proximal to GT
|| || || || || ||
Subischial Triangle - ✔✔-Inferior Pubic Ramus || || || || ||
-Gracilis ||
-Semitendenosis
Adduction of the lateral wall of the socket - ✔✔Re-establishes the normal angulation (6-7*)
|| || || || || || || || || || || || || ||
of the femoral shaft, thereby placing the hip abductor muscles under their normal operation
|| || || || || || || || || || || || ||
tension
||
Proper contouring of the lateral wall - ✔✔-Allows for even distribution of force over the
|| || || || || || || || || || || || || || ||
lateral aspect of the residual limb, specifically between the greater trochanter and the lateral
|| || || || || || || || || || || || ||
distal aspect of the femur
|| || || || ||
-Relief for the lateral distal end of the femur and for GT
|| || || || || || || || || || ||
High medial wall - ✔✔-Proximal medial wall must be high enough to apply counter
|| || || || || || || || || || || || || ||
pressure to maintain good contact between the femur and the lateral wall
|| || || || || || || || || || ||
, 2
Proper mediolateral dimension of the socket at ischial level - ✔✔-too large an ML will
|| || || || || || || || || || || || || || ||
reduce the effectiveness of the lateral and medial walls to stabilize the femur
|| || || || || || || || || || || ||
-Divide the circ of the thigh by pi and subtract 1/4"
|| || || || || || || || || ||
Proper anteroposterior dimension of the socket - ✔✔-too large an AP will tend to permit the
|| || || || || || || || || || || || || || ||
IT to be displaced forward, off of the ischial seat.
|| || || || || || || || || ||
-correct AP determined by subtracting 1/2" from the anatomically determined distance
|| || || || || || || || || || ||
between the ADDUCTOR longus tendon and the IT || || || || || || ||
Pressure on Scarpa's Triangle provides - ✔✔-relieves pressure at initial contact
|| || || || || || || || || ||
-comfort for sitting || ||
-relieves the ADDUCTOR longus tendon || || || ||
-controls rotation ||
-keeps pelvis from rotating|| || ||
-IT on the seat
|| || ||
Anterior-posterior forces - ✔✔-concentrated in the anterior distal tibia and posterior || || || || || || || || || || ||
proximal soft tissue || ||
-Socket provides even pressure distribution in the popliteal area and anterior distal relief to
|| || || || || || || || || || || || || ||
prevent excessive pressure || ||
Media-lateral forces - ✔✔-forces at the proximal medial and distal lateral area force a varum || || || || || || || || || || || || || ||
moment at midstance
|| || ||
-Socket must have relief for the distal lateral fibula and lateral stabilizing pressure over the
|| || || || || || || || || || || || || || ||
shaft of the fibula and anterior compartment.
|| || || || || ||
Sheer force - ✔✔-Occurs when the socket moves in a direction opposite to the residual
|| || || || || || || || || || || || || || ||
limb's motion. ||
General Prosthetic Questions for ABC Written Exam with || || || || || || || ||
accurate detailed solutions || ||
Bench Alignment for TT - ✔✔- 5*to 10* flexion
|| || || || || || || ||
-2* to 5* adduction
|| || ||
-1/2" to 1" inset
|| || ||
-3* to 5* outward rotation or parallel to the LOP
|| || || || || || || || ||
-37mm posterior (18-65mm range)|| || ||
-1/4" anterior from ankle bolt to midline
|| || || || || ||
Bench Alignment for TF - ✔✔- 5* flexion + flexion contracture
|| || || || || || || || || ||
- Long's line + 2* to 5 *
|| || || || || || || ||
-outset foot 1" from ishium + 1*-2* ext
|| || || || || || ||
-5* external rotation of the knee
|| || || || ||
Cuff strap placement - ✔✔-1cm posterior and 1cm proximal to midline at PTB level
|| || || || || || || || || || || || ||
Silesian Belt placement - ✔✔-1/4" posterior and proximal to G.T. (Lateral)
|| || || || || || || || || ||
-1/4" proximal and medial to bisection (Anterior)
|| || || || || ||
Scrapa's Triangle - ✔✔-Ingiunal Ligament || || || ||
-Sartorious
-ADDUCTOR Longus ||
Cycle the Elbow in TH prosthesis - ✔✔-3/4" excursion
|| || || || || || || ||
,2
- 2lbs force
|| ||
Operation of TD and Elbow lift (Excursion) - ✔✔-2 1/2" to lift elbow
|| || || || || || || || || || || ||
-2" for TD || ||
Starting point for EFA - ✔✔- 1" distal and 1" anterior to elbow center
|| || || || || || || || || || || || ||
Hip Bench Alignment - ✔✔-joint anterior to knee center 25-50mm
|| || || || || || || || ||
-reference line knee center to 37mm posterior to heel || || || || || || || ||
-1/2" anterior and 1" proximal to GT
|| || || || || ||
Subischial Triangle - ✔✔-Inferior Pubic Ramus || || || || ||
-Gracilis ||
-Semitendenosis
Adduction of the lateral wall of the socket - ✔✔Re-establishes the normal angulation (6-7*)
|| || || || || || || || || || || || || ||
of the femoral shaft, thereby placing the hip abductor muscles under their normal operation
|| || || || || || || || || || || || ||
tension
||
Proper contouring of the lateral wall - ✔✔-Allows for even distribution of force over the
|| || || || || || || || || || || || || || ||
lateral aspect of the residual limb, specifically between the greater trochanter and the lateral
|| || || || || || || || || || || || ||
distal aspect of the femur
|| || || || ||
-Relief for the lateral distal end of the femur and for GT
|| || || || || || || || || || ||
High medial wall - ✔✔-Proximal medial wall must be high enough to apply counter
|| || || || || || || || || || || || || ||
pressure to maintain good contact between the femur and the lateral wall
|| || || || || || || || || || ||
, 2
Proper mediolateral dimension of the socket at ischial level - ✔✔-too large an ML will
|| || || || || || || || || || || || || || ||
reduce the effectiveness of the lateral and medial walls to stabilize the femur
|| || || || || || || || || || || ||
-Divide the circ of the thigh by pi and subtract 1/4"
|| || || || || || || || || ||
Proper anteroposterior dimension of the socket - ✔✔-too large an AP will tend to permit the
|| || || || || || || || || || || || || || ||
IT to be displaced forward, off of the ischial seat.
|| || || || || || || || || ||
-correct AP determined by subtracting 1/2" from the anatomically determined distance
|| || || || || || || || || || ||
between the ADDUCTOR longus tendon and the IT || || || || || || ||
Pressure on Scarpa's Triangle provides - ✔✔-relieves pressure at initial contact
|| || || || || || || || || ||
-comfort for sitting || ||
-relieves the ADDUCTOR longus tendon || || || ||
-controls rotation ||
-keeps pelvis from rotating|| || ||
-IT on the seat
|| || ||
Anterior-posterior forces - ✔✔-concentrated in the anterior distal tibia and posterior || || || || || || || || || || ||
proximal soft tissue || ||
-Socket provides even pressure distribution in the popliteal area and anterior distal relief to
|| || || || || || || || || || || || || ||
prevent excessive pressure || ||
Media-lateral forces - ✔✔-forces at the proximal medial and distal lateral area force a varum || || || || || || || || || || || || || ||
moment at midstance
|| || ||
-Socket must have relief for the distal lateral fibula and lateral stabilizing pressure over the
|| || || || || || || || || || || || || || ||
shaft of the fibula and anterior compartment.
|| || || || || ||
Sheer force - ✔✔-Occurs when the socket moves in a direction opposite to the residual
|| || || || || || || || || || || || || || ||
limb's motion. ||
