A Hybrid Reality Radiation-Free Simulator for Teaching Wire Navigation Skills

Jenniefer Y Kho; Brian D Johns; Geb W Thomas; Matthew D Karam; John L Marsh; Donald D Anderson

doi:10.1097/BOT.0000000000000372

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A Hybrid Reality Radiation-Free Simulator for Teaching Wire Navigation Skills

Journal article

Open access

Peer reviewed

A Hybrid Reality Radiation-Free Simulator for Teaching Wire Navigation Skills

Jenniefer Y Kho, Brian D Johns, Geb W Thomas, Matthew D Karam, John L Marsh and Donald D Anderson

Journal of orthopaedic trauma, Vol.29(10), pp.e385-e390

10/2015

DOI: 10.1097/BOT.0000000000000372

PMCID: PMC5125723

PMID: 26165262

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Abstract

Surgical simulation is an increasingly important method to facilitate the acquiring of surgical skills. Simulation can be helpful in developing hip fracture fixation skills because it is a common procedure for which performance can be objectively assessed [ie, the tip-apex distance (TAD)]. The procedure requires fluoroscopic guidance to drill a wire along an osseous trajectory to a precise position within bone. The objective of this study was to assess the construct validity for a novel radiation-free simulator designed to teach wire navigation skills in hip fracture fixation. Novices (n = 30) with limited to no surgical experience in hip fracture fixation and experienced surgeons (n = 10) participated. Participants drilled a guide wire in the center-center position of a synthetic femoral head in a hip fracture simulator, using electromagnetic sensors to track the guide-wire position. Sensor data were gathered to generate fluoroscopic-like images of the hip and guide wire. Simulator performance of novice and experienced participants was compared to measure construct validity. The simulator was able to discriminate the accuracy in guide-wire position between novices and experienced surgeons. Experienced surgeons achieved a more accurate TAD than novices (13 vs. 23 mm, respectively, P = 0.009). The magnitude of improvement on successive simulator attempts was dependent on the level of expertise; TAD improved significantly in the novice group, whereas it was unchanged in the experienced group. This hybrid reality, radiation-free hip fracture simulator, which combines real-world objects with computer-generated imagery, demonstrates construct validity by distinguishing the performance of novices and experienced surgeons. There is a differential effect depending on the level of experience, and it could be used as an effective training tool in novice surgeons.

Femoral Fractures - diagnostic imaging

Radiography

Computer-Assisted Instruction - instrumentation

Orthopedic Procedures - instrumentation

Humans

Orthopedic Procedures - education

Osteotomy - instrumentation

Computer-Assisted Instruction - methods

Femoral Fractures - surgery

Bone Wires

Teaching - methods

Osteotomy - methods

Details

Title: Subtitle: A Hybrid Reality Radiation-Free Simulator for Teaching Wire Navigation Skills
Creators: Jenniefer Y Kho - Departments of Orthopaedics and Rehabilitation, and †Mechanical and Industrial Engineering, The University of Iowa, Iowa City, IA
Brian D Johns
Geb W Thomas
Matthew D Karam
John L Marsh
Donald D Anderson
Resource Type: Journal article
Publication Details: Journal of orthopaedic trauma, Vol.29(10), pp.e385-e390
DOI: 10.1097/BOT.0000000000000372
PMID: 26165262
PMCID: PMC5125723
NLM abbreviation: J Orthop Trauma
ISSN: 0890-5339
eISSN: 1531-2291
Publisher: United States
Grant note: R18HS022077 / AHRQ HHS R18 HS022077 / AHRQ HHS
Language: English
Date published: 10/2015
Academic Unit: Roy J. Carver Department of Biomedical Engineering; Orthopedics and Rehabilitation; Industrial and Systems Engineering
Record Identifier: 9984040004402771

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