The factors affecting thermal necrosis secondary to the application of the Ilizarov transosseous wire

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dc.contributor.authorİnan, Muharrem
dc.contributor.authorMızrak, Bülent
dc.contributor.authorErtem, Kadir
dc.contributor.authorHarma, Ahmet
dc.contributor.authorElmalı, Nurzat
dc.contributor.authorAyan, İrfan
dc.date.accessioned2017-05-30T11:47:07Z
dc.date.available2017-05-30T11:47:07Z
dc.date.issued2005
dc.departmentİnönü Üniversitesien_US
dc.descriptionActa Orthop Traumatol Turc 2005;39(1):70-75en_US
dc.description.abstractObjectives: We investigated thermal changes associated with the application of the Ilizarov transosseous wires, the extent of necrosis and the factors affecting necrosis. Me t h o d s : We used a pair of tibiae from a 1-year-old cow. After removal of metaphyseal areas, each of four equal diaphyseal zones marked on both tibiae was drilled at 600, 900, 1,200 and 1,800 rpm, each time with a new wire. Heat changes were recorded with heat electrodes during the application and the speed of the wire was calculated. For histopathological examination, specimens were obtained at the access and exit sites to assess the extent of necrosis. Thermal changes between the zones and immediate and remote cortices were compared. The most significant factor affecting the heat changes was analyzed by linear regression. R e s u l t s : Heat changes varied between 48.4 ¡C (at 1,200 rpm) and 151.9 ¡C (at 600 rpm). The thickness of the immediate cortex, the time and speed for the wire to pass the cortex were found as significant parameters in heat changes (p=0.003, p=0.01, and p=0.01, respectively). A negative correlation was found between the speed of the wire and the thickness of the necrotic area (r=-0.901, p=0.001). Regression analysis showed that the time for the wire to pass through the cortex was the most significant factor in inducing heat changes in both cortices (p=0.001, p=0.003, respectively). Histopathologically, the extent of necrosis and bone erosion was associated with lower drill speeds. Necrosis was significantly notable in the immediate cortex than that of the remote one (p=0.006). Conclusion: Transosseous wires should be passed at high drill speeds and with earliest time elapses to reduce thermal necrosis.en_US
dc.identifier.citationİnan, M., Mızrak, B., Ertem, K., Harma, A., Elmalı, N., & Ayan, İ. (2005). The Factors Affecting Thermal Necrosis Secondary To The Application Of The Ilizarov Transosseous Wire. Acta Orthop Traumatol Turc, 39(1), 70–75.en_US
dc.identifier.endpage75en_US
dc.identifier.issue1en_US
dc.identifier.startpage70en_US
dc.identifier.urihttps://hdl.handle.net/11616/7006
dc.identifier.volume39en_US
dc.language.isotren_US
dc.publisherActa Orthop Traumatol Turcen_US
dc.relation.ispartofActa Orthop Traumatol Turcen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBone wiresen_US
dc.subjectCattleen_US
dc.subjectFracture fixationen_US
dc.subjectHealthen_US
dc.subjectLlizarov techniqueen_US
dc.subjectNecrosisen_US
dc.subjectThermodynamicsen_US
dc.titleThe factors affecting thermal necrosis secondary to the application of the Ilizarov transosseous wireen_US
dc.typeArticleen_US

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