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Department of Orthopaedic Surgery, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Japan.
Published: September 2014
AI Article Synopsis
Closed reduction is important for proper fracture healing, but achieving it accurately while minimizing radiation exposure is challenging.
The ParaEx System, a new guiding technology using CT data, was created to assist in the closed reduction of fractures, validated with tibial fracture models.
Results showed low average errors in rotational and translational deformities, indicating that the ParaEx System effectively allows for accurate and cost-effective closed fracture reduction.
Article Abstract
Background: 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 ± 1.10 mm, 1.13 ± 0.70 mm, and 0.94 ± 0.92 mm 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.
