Patients Specific Spine Simulators for Surgical Training and Rehearsal in Pedicle Screws Placement: A New Way for Surgical Education

6 pages•Published: September 25, 2020

Paolo Domenico Parchi, Sara Condino, Marina Carbone, Sara Stagnari, David Rocchi, Simone Colangeli, Mauro Ferrari, Michelangelo Scaglione and Vincenzo Ferrari

Abstract

In pedicle screws placement using a free-hand technique or a fluoroscopic guided technique the main difficulties are facing to the bone morphology (i.e in deformity cases) and it could be easily reproduced in a patient’s specific spine simulator (we can choose the case). The aim of this work is to evaluate the use of 3D printed patient- specific models (3D printing) not only as a surgical planning tool but also as a surgical training tool in spine surgery and in particular in pedicle screws placement. The manufacturing of patient-specific physical replica involves the elaboration of CT dataset and rapid prototyping techniques. . Five resident surgeons were involved in different training sessions on simulators

. To evaluate the exact screws position we
performed a CT evaluation of each instrumented simulators
. Statistical analysis was conducted using SPSS software. A total of 120 pedicle screws were positioned, 90 screws were well-positioned and 30 screws were bad-positioned. There were a significant difference (p = 0.000008) between the bad-positioning screw rate of the “senior” resident (13/72) and those of “young” participants (17/48). Timeline analysis of pedicle instrumentation training showed the presence of a learning effect, with a lower error rate in the latest session (p=000001). We believe that the use of patient- specific surgical simulators, especially for those surgical tasks in which the complexity is mainly linked to the spine morphology (i.e. deformity), may represent a valid alternative to the use of cadavers that generally present a standard or otherwise poorly predictable anatomy.

Keyphrases: 3d printing, pedicular screws, spine surgery, surgical training

In: Ferdinando Rodriguez Y Baena and Fabio Tatti (editors). CAOS 2020. The 20th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, vol 4, pages 225-230.

Links:	https://easychair.org/publications/paper/R79Q
	https://doi.org/10.29007/38mg

BibTeX entry

@inproceedings{CAOS2020:Patients_Specific_Spine_Simulators,
  author    = {Paolo Domenico Parchi and Sara Condino and Marina Carbone and Sara Stagnari and David Rocchi and Simone Colangeli and Mauro Ferrari and Michelangelo Scaglione and Vincenzo Ferrari},
  title     = {Patients Specific Spine Simulators for Surgical Training and Rehearsal in Pedicle Screws Placement: A New Way for Surgical Education},
  booktitle = {CAOS 2020. The 20th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery},
  editor    = {Ferdinando Rodriguez Y Baena and Fabio Tatti},
  series    = {EPiC Series in Health Sciences},
  volume    = {4},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2398-5305},
  url       = {/publications/paper/R79Q},
  doi       = {10.29007/38mg},
  pages     = {225-230},
  year      = {2020}}

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