Category: O

A generalised weakness of bones, caused by excessive activity of the thyroid gland and associated with formation of cysts, in which bone tissue is replaced by fibrous tissue.  

Tender swellings at the ends of fingers and toes in people who have subacute bacterial endocarditis [Described 1885. After Sir William Osler (1849-1919), Professor of Medicine in Montreal, Philadelphia, Baltimore and then Oxford.] Tiny, elevated, red, and sensitive regions linked to endocarditis, frequently observed on the inner parts of the fingers or toes.  

A device which produces a visual record of an electrical current on a screen using a cathode ray tube. It is used in the testing of electronic equipment and in measuring electrical impulses of the heart or the brain. Electronic instrument with a television-like screen that allows for the visual display of electronic signals. A…

The action of moving backwards and forwards between two points at a regular speed. A single movement between two points. A method of illumination used in slit lamp biomicroscopy, in which the microscope is kept in focus on the structure to be observed, and the beam is oscillated back and forth. A swinging, pendulum-like movement;…

A qualified person who fits orthoses. A health care professional who helps design, construct, and adjust orthotics, orthopedic braces, and other structures that support the body or its parts. A person skilled in making mechanical appliances (orthotics) such as leg braces or splints that help to support limb function. A medical expert with expertise in…

Referring to the position of the body when standing up straight. To an upright position (e.g., orthostatic hypotension, low blood pressure occurring in some people when they stand up). Relating to the upright position of the body: used when describing this posture or a condition caused by it. Orthostatic hypotension, for example, is low blood…

A device which is fitted to the outside of the body to support a weakness or correct a malformation, e.g. a surgical collar or leg brace. Orthopedic device such as a brace, splint, or collar used to immobilize or correct an orthopedic problem; often custom-made to fit the patient’s specific measurements. Any device added to…

Referring to orthopnoea.  

A condition in which a person has great difficulty in breathing while lying down. A form of difficulty in breathing so severe that the patient cannot bear to lie down, but must sit or stand. As a rule, it occurs only in serious affections of the heart or lungs. Experiencing challenges with breathing while in…

A surgeon who specialises in orthopaedics.