Int J Med Robot - Navigated treatment of metatarsal V fractures using a new image based guidance system.

Tópicos

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Resumo

CKGROUND: Computer assisted imaging systems are rarely used for fracture treatment and foot surgery. We introduce a new system for image based guidance in traumatology.METHODS: We included 20 patients with a fracture of the fifth metatarsal. They were randomized on admission into two groups. Ten patients in the metatarsal group were operated conventionally and ten were operated with the assistance of a new image guidance system. This system is based on 2D-fluoro images which are acquired with a conventional c-arm and are transferred to the system workstation. After detecting marked tools, it can be used to display trajectories for K-wire guidance in the c-arm shot.RESULTS: The average duration of surgery in the image-guided group was 12.7 minutes. In the conventional treated group, it was 17 minutes. The average duration of radiation was 18 seconds in the image-guided group vs. 32.4 seconds in the conventional group. 1.6 trials were necessary to position the K-wire for image-guided procedures in comparison to 2.7 trials in the conventional group.CONCLUSION: Image-based guidance systems can be used for indications, were hitherto existing navigation systems are limited due to their dependence on fixed reference devices. Image-guided systems can be integrated into existing workflows and can reduce the malpositioning of guidewires.

Resumo Limpo

ckground comput assist imag system rare use fractur treatment foot surgeri introduc new system imag base guidanc traumatologymethod includ patient fractur fifth metatars random admiss two group ten patient metatars group oper convent ten oper assist new imag guidanc system system base dfluoro imag acquir convent carm transfer system workstat detect mark tool can use display trajectori kwire guidanc carm shotresult averag durat surgeri imageguid group minut convent treat group minut averag durat radiat second imageguid group vs second convent group trial necessari posit kwire imageguid procedur comparison trial convent groupconclus imagebas guidanc system can use indic hitherto exist navig system limit due depend fix refer devic imageguid system can integr exist workflow can reduc malposit guidewir

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