Essential knee terminology
Icing search for term

A knee may be 'iced' to limit inflammation and swelling.

ICRS search for term

Abbreviation for 'International Cartilage Repair Society'.

IKDC search for term

Abbreviation for 'International Knee Documentation Committee'.

Ilio-tibial band stretch search for term

A knee rehabilitation exercise.

Iliotibial band search for term

The iliotibial band is a thickened and strong tendinous strap which runs down the side of the thigh.

Iliotibial band friction syndrome search for term

An overuse disorder, where with exercise a person experiences pain on the outer side of the knee over the bony prominence called the femoral epicondyle.

Iliotibial band syndrome search for term

Same thing as 'iliotibial band friction syndrome'.

Immobiliser search for term

An immobiliser is a knee brace that keeps the leg in a straight position.

Immune response search for term

An immune response is a cellular and chemical reaction of the body to a foreign agent.

Impingement search for term

When an structure in the body interferes with the mobility of another structure by getting in the way.

In vitro search for term

In the laboratory.

In vitro fertilisation search for term

The procedure of fertilising an egg outside of the body in a laboratory.

In vivo search for term

In the living body.

Incision search for term

An incision is a surgical cut.

Induced pluripotent stem cell search for term

Induced pluripotent stem cells are generated by reprogramming adult cells through the introduction of a small number of specific genes and giving them the ability to reproduce into multiple cell types. 

Inferior search for term

Inferior means 'below'.

Inflammation search for term

Inflammation is a condition of distress of body tissues, where irritant chemicals are released and trigger a protective cellular response from the body.

Inflammatory process search for term

A cascade of cellular and chemical events that occurs in damaged tissues, with a view to healing the damage.

Infrapatellar search for term

Below the patella (kneecap).

Infrapatellar bursitis search for term

Inflammation of the infrapatellar bursa, below the kneecap.

Infrapatellar contracture syndrome search for term

Excessive scarring behind the patellar tendon, in the infrapatellar area.

Infrapatellar plica search for term

The infrapatellar plica is a filmy structure - not always present - that stretches from the notch of the femur to the fat pad.

Innervated search for term

Innervated means 'supplied by nerves'.

Innervation search for term

Innervation is the nerve supply of a structure.

Insall-Salvati Ratio search for term

The Insall-Salvati Ratio is the ratio of the length of the patellar tendon to the length of the patella, when measured on an X-ray or MRI with the knees bent to 30 degrees.

Inside-out technique search for term

A method of repairing a torn meniscus. It has largely been replaced by the simpler 'all inside' technique.

Instability search for term

With instability of the knee, the person feels that they cannot trust the joint, which may give way and not allow confident movement.

Intercondylar notch search for term

The intercondylar notch is the deep groove or notch between the two rounded ends (condyles) of the femur bone (thighbone).

Interference screw search for term

An interference screw is one that is used to hold a ligament graft firmly in the bone by actually running alongside the ligament tissue.

Intermuscular haematoma search for term

'Inter' means between and 'haematoma' is bleeding so an intermuscular haematoma is bleeding between muscles.

Internal brace search for term

An internal brace is a construct placed within the joint that supports a torn ligament while it heals after it has been surgically repaired.

Internal brace augmentation search for term

Internal brace augmentation involves the use of a second material inside the joint to augment and strengthen a ligament repair or graft.

Internal fixation search for term

Repairing bones by fixing them with metal devices, for example a plate and screws.

International Cartilage Repair Society search for term

The International Cartilage Repair Society (ICRS) is a professional scientific and medical society.

International Patellofemoral Study Group search for term

The IPSG was founded in 1995 when "a group of friends" with proven interest in the academic study of patellofemoral problems agreed to meet informally to gain mutual understanding of the special issues and controversies related to the kneecap.

Intra-articular search for term

Inside the joint cavity.

Intraarticular search for term

'Intra' ='within' and 'articular' ='the joint', so if something is intraarticular it means that it is within the cavity of the joint.

Intramedullary nail search for term

A metal rod used for fractures of long bones, where the rod is driven through the centre part of the bones to hold them in good alignment so that they can heal properly.

Intramuscular search for term

Into the muscle or inside the muscle.

Intramuscular haematoma search for term

'Intra' -'within' and 'haematoma'='a confined lump of blood', so an intramuscular haematoma is bleeding within the muscle tissues.

IPP search for term

Abbreviation for infrapatellar plica.

IPP-Fat Pad Complex search for term

The IPP-Fat Pad Complex is the anatomical association of the infrapatellar plica and the fat pad.

ISAR search for term

International Society of Arthroplasty Registers

Isokinetic machine search for term

An isokinetic machine is both an exercise device and a measuring device, that uses the principles of isokinetics.

Isokinetics search for term

Isokinetics is a form of exercise and muscle testing using an isokinetic machine - where the resistance of the machine changes so that the person exercises at a constant speed.

Isometric search for term

The term isometric comes from the Greek for "having equal measurement". A structure in the knee that is isometric has the same measurement irrespective of whether the knee is flexed( bended) or extended (straightened).

ITB search for term

Abbreviation of 'iliotibial band'.

ITBS search for term

Abbreviation of 'iliotibial band syndrome'.

IVF search for term

In vitro fertilisation - fertilising an egg in a laboratory.

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