Int J Med Robot - Computer-aided parachute guiding system for closed reduction of diaphyseal fractures.

Tópicos

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Resumo

CKGROUND: Closed reduction is of great benefit for fracture healing. However, achieving this without sacrificing the reduction accuracy and exposing the surgeon and patient to excessive radiation is difficult.METHODS: A novel parachute guiding system (ParaEx System) was developed for closed reduction of fractures based on computed tomography data. The system included two counter guides with stainless tubular markers that could be attached to the unilateral external fixator. Comminuted tibial diaphyseal fracture models were used to validate the ParaEx System.RESULTS: The mean errors (and standard deviations) of residual rotational and translational deformity were 0.67??0.45?, 0.92??1.00?, and 0.64??0.50? in rotation and 1.30?1.10mm, 1.13?0.70mm, and 0.94?0.92mm in translation about the X, Y, and Z axes of the local coordinate axes, respectively.CONCLUSIONS: The ParaEx System was useful for accurate closed reduction of fractures at low cost.

Resumo Limpo

ckground close reduct great benefit fractur heal howev achiev without sacrif reduct accuraci expos surgeon patient excess radiat difficultmethod novel parachut guid system paraex system develop close reduct fractur base comput tomographi data system includ two counter guid stainless tubular marker attach unilater extern fixat comminut tibial diaphys fractur model use valid paraex systemresult mean error standard deviat residu rotat translat deform rotat mm mm mm translat x y z axe local coordin axe respectivelyconclus paraex system use accur close reduct fractur low cost

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