3D printing-assisted preoperative plan of pedicle screw placement for middle-upper thoracic trauma: a cohort study.

ABSTRACT:

Background

This study aimed to evaluate the application of 3D printing in assisting preoperative plan of pedicle screw placement for treating middle-upper thoracic trauma.

Methods

A preoperative plan was implemented in seven patients suffering from middle-upper thoracic (T3-T7) trauma between March 2013 and February 2016. In the 3D printing models, entry points of 56 pedicle screws (Magerl method) and 4 important parameters of the pedicle screws were measured, including optimal diameter (ϕ, mm), length (L, mm), inclined angle (α), head-tilting angle (+β), and tail-tilting angle (-β). In the surgery, bare-hands fixation of pedicle screws was performed using 3D printing models and the measured parameters as guidance.

Results

A total of seven patients were enrolled, incl

SUBMITTER: Xu W 

PROVIDER: S-EPMC5553797 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature