Biomaterial Database

[Restoration of movement in the joints with the aid of a hinge-distraction apparatus]. 1992

M V Volkov, and O V Oganesian

The device described presents an external hinge which is fixed by transosseous wires and reproduces as far as possible the normal kinematics of the joint. By removing all load from the joint surfaces and maintaining a constant predetermined space between them, the apparatus eliminates friction, prevents pain and muscle spasm, and minimizes abnormal mobility (or instability). It also permits gradual and controlled reduction of old traumatic or congenital dislocations or contractures. Once the bones are in proper relationship, the apparatus permits graduated, controlled, nearly frictionless motion about the correct axis so that a good range of motion is restored and joint surfaces of the proper shape are formed. Finally, ununited fractures close to the joint surface may be immobilized while joint motion is permitted. Experience gained with the apparatus has shown that the method described is physiological and not difficult, complications associated with its use being rare and not serious. The good results obtained with the use of the apparatus warrant its wider application.

UI	MeSH Term	Description	Entries
D007596	Joints	Also known as articulations, these are points of connection between the ends of certain separate bones, or where the borders of other bones are juxtaposed.	Joint
D009068	Movement	The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.	Movements
D004204	Joint Dislocations	Displacement of bones from their normal positions at a joint.	Inferior Dislocation,Joint Subluxations,Luxatio Erecta,Dislocation, Joint,Dislocations, Joint,Inferior Dislocations,Joint Dislocation,Joint Subluxation,Subluxation, Joint,Subluxations, Joint
D005599	Fractures, Ununited	A fracture in which union fails to occur, the ends of the bone becoming rounded and eburnated, and a false joint occurs. (Stedman, 25th ed)	Fracture, Ununited,Ununited Fracture,Ununited Fractures
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D016267	External Fixators	External devices which hold wires or pins that are placed through one or both cortices of bone in order to hold the position of a fracture in proper alignment. These devices allow easy access to wounds, adjustment during the course of healing, and more functional use of the limbs involved.	Fixation Devices, External,Device, External Fixation,Devices, External Fixation,External Fixation Device,External Fixation Devices,External Fixator,Fixation Device, External,Fixator, External,Fixators, External