HA

Chemical formula for hydroxylapatite

Habitual

This means repeatedly occurring

Haemoglobine

Gives the red blood cells their colour, that is the cells that carry oxygen to the tissue

Hardened muscles

This is the permanent tensing of a muscle that can usually be moved at will

Hard on soft

A joint connection consisting of two materials of differing hardness e.g. metal (head) and polyethylene (cup)

Head trauma

An injury to the cervical vertebrae that occurs when the head and trunk are thrown backwards or forwards too fast, particularly occurring in collision accidents. The heavy pulling and bending of the spine can cause injury to the vertebrae, fractures and torn ligaments

Heat-stroke

A physical abnormality caused by a build up of heat in the body e.g. in the case of strong sun or sultry air, strong physical exertion, reduced secretion of heat (sweat). The consequences are unconsciousness, cramp and fever

Hematoma

Bleeding causing an accumulation of blood in the tissue or cavities, usually accompanied by swelling. It first appears as a bluish-red and later as a greenish-yellow discoloration

Haematuria

This means that there is blood in the urine

Hard-on-hard

The articular surfaces of an artificial joint are made of the same (hard) material, e.g. metal-metal or ceramic-ceramic

Heparin

An anti-coagulent drug. Inhibits blood clotting, reverses clotting - is contained in many ointments that are used to treat bruises, contusions, hematoma etc.

Herberden's nodes

A form of arthrosis, usually of several finger joints with the formation of nodes on the top of the end finger joints; may also be accompanied by inflammation at times, but has nothing to do with chronic polyarthritis

Hernia

This means a rupture

High frequency therapy

This is the application of rapidly pulsating, alternating currents (short wave and microwave ). These create a thermal effect that contributes towards the accelerated healing of many sport injuries such as pulled muscles, dislocations und sprains

HTEP

Abbreviation for: "HüftTotalEndoProthese" (total hip endoprosthesis), consisting of a hip cup with cup insert, hip shaft and ball head

Humerus

The bone of the upper arm

Hybrid

A mixture, a cross, a compound, of dual origin, e.g. the hybrid anchoring of a total endoprosthesis: part of the prosthesis is cemented in the bone and the other part is uncemented

Hydroxylapatite

A mineral compound of the hard bone substance; it can be manufactured artificially as a ceramic material and serves as a surface coating for uncemented joints, chemical formula: HA

Hyper

A prefix meaning excessive

Hypo

A prefix meaning, too little