Osteosynthesis


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Osteosynthesis

 

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.

REFERENCES

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.

V. IU. GOLIAKHOVSKII

References in periodicals archive ?
The purpose of this report was to present the technique of arthroscopic osteosynthesis in the coronoid process fractures and the clinical results of patients who underwent this surgery.
Clavicular fractures account for approximately 2.6% of all fractures, with the majority being midshaft fractures.[1] A recent meta-analysis reported a nonunion rate as high as 14.5% for displaced midshaft fractures treated nonoperatively.[2] Moreover, a specific association between thoracic outlet syndrome (TOS) and clavicular nonunion has been reported.[3],[4],[5] On the other hand, osteosynthesis for clavicular fractures is a reliable treatment, with rates of midshaft nonunion as low as 1.4%.[2] Although clavicular osteosynthesis decreases the rate of nonunion, TOS remains a possible postoperative complication.
Visit the Osteosynthesis Devices Market - Global Internal and External Devices and Materials Analysis and Forecast 2013-2020 report at http://www.ihealthcareanalyst.com/report/osteosynthesis-devices-market/
The main disadvantages of the anatomic reduction and rigid fixation by plates led to the development of the "biological plate osteosynthesis" concept.
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.
of North Carolina at Chapel Hill, US), miniplate osteosynthesis holds technical advantages over intermaxillary fixation for allowing bone healing of fractures of the facial skeleton in that: plates are small and easily adapted, they are applied monocortically, the approach is intraoral, and the plates provide functional stability that is biomechanically balanced.
Modern traumatology started with the development of osteosynthesis, which was a major step forward in craniomaxillofacial surgery.
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 osteosynthesis plate and intramedullary (IM) nail systems are proven safe and effective fixation devices, several medical device manufacturers have begun adding polymeric locking devices to these applications to increase safety and improve functionality.
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.
This deal is likely to create a global osteosynthesis (surgical treatment for bones) medical device company.