Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training

Abstract Background Training beginners of the pedicle screw instrumentation technique in the operating room is limited because of issues related to patient safety and surgical efficiency. Three-dimensional (3D) printing enables training or simulation surgery on a real-size replica of deformed spine,...

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Main Authors: Hyun Jin Park, Chenyu Wang, Kyung Ho Choi, Hyong Nyun Kim
Format: Article
Language:English
Published: BMC 2018-04-01
Series:Journal of Orthopaedic Surgery and Research
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13018-018-0788-z
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author Hyun Jin Park
Chenyu Wang
Kyung Ho Choi
Hyong Nyun Kim
author_facet Hyun Jin Park
Chenyu Wang
Kyung Ho Choi
Hyong Nyun Kim
author_sort Hyun Jin Park
collection DOAJ
description Abstract Background Training beginners of the pedicle screw instrumentation technique in the operating room is limited because of issues related to patient safety and surgical efficiency. Three-dimensional (3D) printing enables training or simulation surgery on a real-size replica of deformed spine, which is difficult to perform in the usual cadaver or surrogate plastic models. The purpose of this study was to evaluate the educational effect of using a real-size 3D-printed spine model for training beginners of the free-hand pedicle screw instrumentation technique. We asked whether the use of a 3D spine model can improve (1) screw instrumentation accuracy and (2) length of procedure. Methods Twenty life-size 3D-printed lumbar spine models were made from 10 volunteers (two models for each volunteer). Two novice surgeons who had no experience of free-hand pedicle screw instrumentation technique were instructed by an experienced surgeon, and each surgeon inserted 10 pedicle screws for each lumbar spine model. Computed tomography scans of the spine models were obtained to evaluate screw instrumentation accuracy. The length of time in completing the procedure was recorded. The results of the latter 10 spine models were compared with those of the former 10 models to evaluate learning effect. Results A total of 37/200 screws (18.5%) perforated the pedicle cortex with a mean of 1.7 mm (range, 1.2–3.3 mm). However, the latter half of the models had significantly less violation than the former half (10/100 vs. 27/100, p < 0.001). The mean length of time to complete 10 pedicle screw instrumentations in a spine model was 42.8 ± 5.3 min for the former 10 spine models and 35.6 ± 2.9 min for the latter 10 spine models. The latter 10 spine models had significantly less time than the former 10 models (p < 0.001). Conclusion A life-size 3D-printed spine model can be an excellent tool for training beginners of the free-hand pedicle screw instrumentation.
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spelling doaj.art-a7a4612cc5a54cacb96fa77d9ed57a062022-12-22T04:10:25ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2018-04-011311810.1186/s13018-018-0788-zUse of a life-size three-dimensional-printed spine model for pedicle screw instrumentation trainingHyun Jin Park0Chenyu Wang1Kyung Ho Choi2Hyong Nyun Kim3Department of Orthopaedic Surgery, Kangnam Sacred Heart Hospital, Hallym University College of MedicineDepartment of Orthopaedic Surgery, Kangnam Sacred Heart Hospital, Hallym University College of MedicineDepartment of Orthopaedic Surgery, Kangnam Sacred Heart Hospital, Hallym University College of MedicineDepartment of Orthopaedic Surgery, Kangnam Sacred Heart Hospital, Hallym University College of MedicineAbstract Background Training beginners of the pedicle screw instrumentation technique in the operating room is limited because of issues related to patient safety and surgical efficiency. Three-dimensional (3D) printing enables training or simulation surgery on a real-size replica of deformed spine, which is difficult to perform in the usual cadaver or surrogate plastic models. The purpose of this study was to evaluate the educational effect of using a real-size 3D-printed spine model for training beginners of the free-hand pedicle screw instrumentation technique. We asked whether the use of a 3D spine model can improve (1) screw instrumentation accuracy and (2) length of procedure. Methods Twenty life-size 3D-printed lumbar spine models were made from 10 volunteers (two models for each volunteer). Two novice surgeons who had no experience of free-hand pedicle screw instrumentation technique were instructed by an experienced surgeon, and each surgeon inserted 10 pedicle screws for each lumbar spine model. Computed tomography scans of the spine models were obtained to evaluate screw instrumentation accuracy. The length of time in completing the procedure was recorded. The results of the latter 10 spine models were compared with those of the former 10 models to evaluate learning effect. Results A total of 37/200 screws (18.5%) perforated the pedicle cortex with a mean of 1.7 mm (range, 1.2–3.3 mm). However, the latter half of the models had significantly less violation than the former half (10/100 vs. 27/100, p < 0.001). The mean length of time to complete 10 pedicle screw instrumentations in a spine model was 42.8 ± 5.3 min for the former 10 spine models and 35.6 ± 2.9 min for the latter 10 spine models. The latter 10 spine models had significantly less time than the former 10 models (p < 0.001). Conclusion A life-size 3D-printed spine model can be an excellent tool for training beginners of the free-hand pedicle screw instrumentation.http://link.springer.com/article/10.1186/s13018-018-0788-z3D-printed spine modelPedicle screw instrumentationBeginnersTraining
spellingShingle Hyun Jin Park
Chenyu Wang
Kyung Ho Choi
Hyong Nyun Kim
Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training
Journal of Orthopaedic Surgery and Research
3D-printed spine model
Pedicle screw instrumentation
Beginners
Training
title Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training
title_full Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training
title_fullStr Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training
title_full_unstemmed Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training
title_short Use of a life-size three-dimensional-printed spine model for pedicle screw instrumentation training
title_sort use of a life size three dimensional printed spine model for pedicle screw instrumentation training
topic 3D-printed spine model
Pedicle screw instrumentation
Beginners
Training
url http://link.springer.com/article/10.1186/s13018-018-0788-z
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AT hyongnyunkim useofalifesizethreedimensionalprintedspinemodelforpediclescrewinstrumentationtraining