I
International Cartilage Repair Society
The International Cartilage Repair Society (ICRS) is a professional scientific and medical society.
International Patellofemoral Study Group
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.
Intraarticular
'Intra' ='within' and 'articular' ='the joint', so if something is intraarticular it means that it is within the cavity of the joint.
Intramedullary nail
An intramedullary nail is 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
Intramuscular means into the muscle (eg an injection) or inside the muscle (eg a bleed).
Intramuscular haematoma
'Intra' -'within' and 'haematoma'='a confined lump of blood', so an intramuscular haematoma is bleeding within the muscle tissues.
In vitro
In vitro ('within glass') means within laboratory equipment, such as test tubes and petri dishes, but it may also mean any laboratory model used for research, such as a mechanical simulator.
In vitro fertilisation
In vitro fertilisation is the procedure of fertilising an egg outside of the body in a laboratory.
In vivo
In vivo is some procedure performed within the living body.
IPP
IPP is an abbreviation for infrapatellar plica.