@article{Akhtar:2015:10.3109/17453674.2015.1041083,
author = {Akhtar, K and Sugand, K and Sperrin, M and Cobb, J and Standfield, N and Gupte, C},
doi = {10.3109/17453674.2015.1041083},
journal = {ACTA ORTHOPAEDICA},
pages = {616--621},
title = {Training safer orthopedic surgeons Construct validation of a virtual-reality simulator for hip fracture surgery},
url = {http://dx.doi.org/10.3109/17453674.2015.1041083},
volume = {86},
year = {2015}
}

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TY  - JOUR
AB  - Background and purpose — Virtual-reality (VR) simulation inorthopedic training is still in its infancy, and much of the work hasbeen focused on arthroscopy. We evaluated the construct validityof a new VR trauma simulator for performing dynamic hip screw(DHS) fixation of a trochanteric femoral fracture.Patients and methods — 30 volunteers were divided into 3groups according to the number of postgraduate (PG) years andthe amount of clinical experience: novice (1–4 PG years; less than10 DHS procedures); intermediate (5–12 PG years; 10–100 procedures);expert (> 12 PG years; > 100 procedures). Each participantperformed a DHS procedure and objective performancemetrics were recorded. These data were analyzed with each performancemetric taken as the dependent variable in 3 regressionmodels.Results — There were statistically significant differences inperformance between groups for (1) number of attempts at guidewireinsertion, (2) total fluoroscopy time, (3) tip-apex distance,(4) probability of screw cutout, and (5) overall simulator score.The intermediate group performed the procedure most quickly,with the lowest fluoroscopy time, the lowest tip-apex distance,the lowest probability of cutout, and the highest simulator score,which correlated with their frequency of exposure to running thetrauma lists for hip fracture surgery.Interpretation — This study demonstrates the construct validityof a haptic VR trauma simulator with surgeons undertakingthe procedure most frequently performing best on the simulator.VR simulation may be a means of addressing restrictionson working hours and allows trainees to practice technical taskswithout putting patients at risk. The VR DHS simulator evaluatedin this study may provide valid assessment of technical skill.
AU  - Akhtar,K
AU  - Sugand,K
AU  - Sperrin,M
AU  - Cobb,J
AU  - Standfield,N
AU  - Gupte,C
DO  - 10.3109/17453674.2015.1041083
EP  - 621
PY  - 2015///
SN  - 1745-3674
SP  - 616
TI  - Training safer orthopedic surgeons Construct validation of a virtual-reality simulator for hip fracture surgery
T2  - ACTA ORTHOPAEDICA
UR  - http://dx.doi.org/10.3109/17453674.2015.1041083
UR  - http://hdl.handle.net/10044/1/27774
VL  - 86
ER  - 

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