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01.03.2018 | Orthopaedic Surgery | Ausgabe 6/2018

Archives of Orthopaedic and Trauma Surgery 6/2018

Virtual surgery simulation versus traditional approaches in training of residents in cervical pedicle screw placement

Zeitschrift:
Archives of Orthopaedic and Trauma Surgery > Ausgabe 6/2018
Autoren:
Yang Hou, Jiangang Shi, Yanping Lin, Huajiang Chen, Wen Yuan
Wichtige Hinweise
Jiangang Shi, Yang Hou and Yanping Lin contributed equally to this study and should be considered as co-first authors.

Abstract

Introduction

The cervical screw placement is one of the most difficult procedures in spine surgery, which often needs a long period of repeated practices and could cause screw placement-related complications. We performed this cadaver study to investigate the effectiveness of virtual surgical training system (VSTS) on cervical pedicle screw instrumentation for residents.

Materials and methods

A total of ten novice residents were randomly assigned to two groups: the simulation training (ST) group (n = 5) and control group (n = 5). The ST group received a surgical training of cervical pedicle screw placement on VSTS and the control group was given an introductory teaching session before cadaver test. Ten fresh adult spine specimens including 6 males and 4 females were collected, and were randomly allocated to the two groups. The bilateral C3–C6 pedicle screw instrumentation was performed in the specimens of the two groups, respectively. After instrumentation, screw positions of the two groups were evaluated by image examinations.

Results

There was significantly statistical difference in screw penetration rates between the ST (10%) and control group (62.5%, P < 0.05). The acceptable rates of screws were 100 and 50% in the ST and control groups with significant difference between each other (P < 0.05). In addition, the average screw penetration distance in the ST group (1.12 ± 0.47 mm) was significantly lower than the control group (2.08 ± 0.39 mm, P < 0.05).

Conclusions

This study demonstrated that the VSTS as an advanced training tool exhibited promising effects on improving performance of novice residents in cervical pedicle screw placement compared with the traditional teaching methods.

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