Shape of Things to Come
The muscle tendon palpated on the medial proximal border of the thigh during transfemoral evaluation.
What is the adductor longus tendon?
The two primary factors that inform prosthetic component selection for any given patient.
What are weight and activity level?
The first auxiliary suspension that should be tried if primary suction suspension is inadequate.
What is a Silesian belt or TES belt?
The most likely prosthetic cause of lateral trunk bending toward the prosthetic side during stance phase.
What is insufficient socket adduction?
The most appropriate next step when a new transfemoral amputee presents for the first time with an Rx for a prosthesis.
What is a thorough physical examination including ROM, MMT, and residual limb assessment?
In a quadrilateral socket, this dimension is wider than in an ischial containment socket.
What is the medial-lateral (ML) dimension?
This knee type can be locked and unlocked by pulling a cable attached to the joint mechanism.
What is a manual locking knee?
Of all common transfemoral suspension types, this one provides the least control of rotation and pistoning.
What is the Silesian belt?
The rotational correction applied to the knee unit to eliminate a medial whip in a transfemoral prosthesis.
What is internal rotation of the knee unit?
The most appropriate socket type and suspension for a 47-year-old active police officer with average limb length, good tissue quality, minimal scarring, and strong hands.
What is an IC socket with suction suspension (Lyn valve) and a TES belt as auxiliary?
The two alignment parameters that must be captured when casting for an ischial containment socket.
What are flexion and adduction?
The reason a polycentric knee is preferred for a patient with a knee disarticulation amputation.
What is the moving center of rotation in a polycentric?
The suspension system most appropriate for a transfemoral amputee with a very short residual limb and weak hip abductors.
What is a waist belt, pelvic band, and hip joint?
The three main factors that influence knee stability in a transfemoral prosthesis.
What are TKA alignment, heel stiffness, and forefoot stiffness?
The most likely cause of distal anterior skin breakdown in a transfemoral amputee using a suction socket.
What is insufficient total contact, causing tissue to be pulled distally into a volume void?
The three primary mechanisms of axial weight-bearing in an ischial containment socket.
What are hydrostatic pressure, ischial loading, and gluteal loading?
The primary clinical objective of using a hydraulic unit in a prosthetic knee joint.
What is controlled knee flexion resistance across variable cadences?
The most common location where suction is lost in a transfemoral suction socket.
What is the widest circumference of the residual limb?
The most likely cause of vaulting on the sound side during prosthetic swing phase.
What is a prosthesis that is too long, or insufficient knee flexion during swing?
The most common clinical concern associated with osseointegration as a method of prosthetic attachment.
What is infection at the transcutaneous implant site?
This socket design has proximal trim lines that do not impinge on the pelvis, and is flexible enough to allow muscle movement within the socket.
What is a sub-ischial socket?
The complete componentry recommendation for a 70-year-old K2 vascular amputee using a walker, where cost and weight are the primary concerns.
What is a pin-lock liner suspension, friction knee, and SACH foot?
The least correct anatomical location of the one-way suction valve on a transfemoral suction socket.
What is posterior?
The biomechanical cost to the transfemoral amputee when the walking base is narrowed, despite improved cosmesis and reduced energy use.
What is increased loading on the lateral distal femur?
The recommended knee configuration when fitting a new, weak transfemoral amputee with an IPOP.
What is a manual locking knee or no knee unit?