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fastening of the ends of fragmented bone after osteotomy and in the treatment of fractures in order to realign and secure the fragments in a position that would promote callus formation. Osteosynthesis can be closed, involving the fixation of bone fragments by mechanical means: wires are passed through the fragments at some distance from the line of fracture and held in repositioning devices, such as rings and arches. With open osteosynthesis, the fragments are secured with metal or plastic devices that are introduced into the canals of tubular bones; plates can be screwed to the cortical layers of the bone. Osteosynthesis can be performed in one of several stages, but the operation must be closed if several stages are involved. It can also be performed with bone grafts: autografts use bone taken from the patient himself; homografts—from preserved cadaver tissues; and heterografts—from an animal of another species.

Osteosynthesis can be stable or unstable. The former ensures the reliable fixation of fragments in apposition and does not require additional external fixation with a cast or some other means. Unstable osteosynthesis requires additional external fixation until the fragments are joined. Compression osteosynthesis—a special kind of osteosynthesis involving compression of the fragments along the bone axis—has no clear advantage over the ordinary types of osteosynthesis inasmuch as the fragments do not join faster and the quality of the union is not better.

Osteosynthesis is performed under local or general anesthesia in specialized medical institutions. During wartime, osteosynthesis can only be done in a specialized field hospital.


Chaklin, V. D. Osnovy operativnoi ortopedii i travmatologii. Moscow, 1964.
Dubrov, la. G. Vnutrikostnaia fiksatsiia metallicheskim sterzhnem pri perelomakh dlinnykh trubchatykh kostei, 2nd ed. Moscow, 1972.


References in periodicals archive ?
Periodic delivery of medical devices - osteosynthesis, knee and hip endoprostheses for the needs of the department of orthopedics and traumatology of "kanev" university hospital for a period of 24 months.
3],[4],[5] On the other hand, osteosynthesis for clavicular fractures is a reliable treatment, with rates of midshaft nonunion as low as 1.
Visit the Osteosynthesis Devices Market - Global Internal and External Devices and Materials Analysis and Forecast 2013-2020 report at http://www.
1) To study and evaluate the results of fracture fixation using the Minimally Invasive Plate Osteosynthesis (MIPO) technique, with a limited operative exposure.
Patients who failed to achieve anatomical reduction that meets the criteria for successful treatment [10] are then indicated for surgical treatment either by intramedullary or plate osteosynthesis.
In our clinic 56 patients underwent the blocked intramedullary osteosynthesis during 2008-2011; 38 patients among them had multiple bone fractures of the lower extremities.
The first osteosynthesis plate was used by the British surgeon Sir William Lane over 100 years ago.
Considering these aspects, the main objective of our study is to design a new implant of different geometrical shape and thickness for osteosynthesis of trans-sindesmotic fibula's fracture.
At this stage, the first phase consists in importing of STL models of fibula and osteosynthesis implant in the specialized program, Catalyst, (program which generates command code for 3D Printing machine Elitte).
While medical device manufacturers have used polyethylene and nylon in these applications, studies indicate PEEK-OFFIMA polymer has shown the most promise when used as a locking device in osteosynthesis and IM nail fracture treatment systems.
Only patients requiring plate osteosynthesis were included in the study (see Table 1 in the Data Supplement that accompanies the online version of this technical brief at http://www.
Tokyo, Japan, Oct 24, 2005 - (JCNN) - Takiron announced on October 24 that it has obtained CE Mark approval on Osteotrans, its proprietary biodegradable material for osteosynthesis, as of August 24.