I.C.

Ischial Containment.

I.C.R.C.

International Committee of the Red Cross.

I.C.-socket

Ischial containment socket.

Idiopathic scoliosis

Adolescent scoliosis with an unknown cause.

Immediate and early fitting

Postoperative or early (within 1 week) provision of a prosthesis.

Immobilization

To limit or block motion.

Initial swing

Part of swing phase when the leg begins to swing forward during walking.

Insensate

Lack of feeling or proprioception.

Insole

Orthosis that is placed inside the shoe that the foot stands on for support or cushion.

Instability

Specific part of body that has insufficient support.

Interface

Material that is used between the orthosis/prosthesis and the body part.

Inversion

When the foot turns inward.

Inguinal truss

Orthosis used to treat hernias.

I.P.O.P.

Immediate Post Operative Prosthesis.

Ischial containment (socket)

When a prosthetic socket incorporates part of the ischium to increase stability during gait.

Ischial seat / shelf / support

The part of a prosthesis or orthosis that supports the ischial tuberosity.

Ischial shelf

Horizontal support at the dorso-proximal aspect of a tf-socket.

Ischial support brim

Proximal weight bearing design in a TF-prosthesis or orthosis.

Ischial support socket

TF-socket designed to transfer weight at the ischium.

Ischial tuberosity

Bony landmark at posterior aspect of ischium.

Ischial weight bearing

Weight transfer at the ischium (in a prosthetic socket).

Ischial weight bearing socket

Quadrilateral socket design in variations.

Ischium

The seat bone.

I.S.N.Y.

Icelandic-Scandinavian Socket modified by New York University.

I.S.O.

International Standards Organization.

I.S.P.O.

International Society for Prosthetics and Orthotics.

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