Dataset Information

Virtual reality hip arthroscopy simulator demonstrates sufficient face validity.

ABSTRACT: PURPOSE:To test the face validity of the hip diagnostics module of a virtual reality hip arthroscopy simulator. METHODS:A total of 25 orthopaedic surgeons, 7 faculty members and 18 orthopaedic residents, performed diagnostic supine hip arthroscopies of a healthy virtual reality hip joint using a 70° arthroscope. Twelve specific targets were visualised within the central compartment; six via the anterior portal, three via the anterolateral portal and three via the posterolateral portal. This task was immediately followed by a questionnaire regarding the realism and training capability of the system. This consisted of seven questions addressing the verisimilitude of the simulator and five questions addressing the training environment of the simulator. Each question consisted of a statement stem and 10-point Likert scale. Following similar work in surgical simulators, a rating of 7 or above was considered an acceptable level of realism. RESULTS:The diagnostic hip arthroscopy module was found to have an acceptable level of realism in all domains apart from the tactile feedback received from the soft tissue. 23 out of 25 participants (92%) felt the simulator provided a non-threatening learning environment and 22 participants (88%) stated they enjoyed using the simulator. It was most frequently agreed that the level of trainees who would benefit most from the simulator were registrars and fellows (22 participants; 88%). Additionally, 21 of the participants (84%) agreed that this would be a beneficial training modality for foundation and core trainees, and 20 participants (80%) agreed that his would be beneficial for consultants. CONCLUSIONS:This VR hip arthroscopy simulator was demonstrated to have a sufficient level of realism, thus establishing its face validity. These results suggest this simulator has sufficient realism for use in the acquisition of basic arthroscopic skills and supports its use in orthopaedics surgical training. LEVEL OF EVIDENCE:I.

SUBMITTER: Bartlett JD

PROVIDER: S-EPMC6754348 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Virtual reality hip arthroscopy simulator demonstrates sufficient face validity.

Bartlett Jonathan D JD Lawrence John E JE Khanduja Vikas V

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA 20180711 10

<h4>Purpose</h4>To test the face validity of the hip diagnostics module of a virtual reality hip arthroscopy simulator.<h4>Methods</h4>A total of 25 orthopaedic surgeons, 7 faculty members and 18 orthopaedic residents, performed diagnostic supine hip arthroscopies of a healthy virtual reality hip joint using a 70° arthroscope. Twelve specific targets were visualised within the central compartment; six via the anterior portal, three via the anterolateral portal and three via the posterolateral po ...[more]

PMID: 29995167

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Project description:PurposeWe evaluate the face, content, and construct validity of a portable hip arthroscopy module in a regional orthopaedic unit.MethodsParticipants were recruited from a regional orthopaedic centre, and categorized into novice (0 arthroscopies), intermediate (1-29 arthroscopies), and expert (>50 arthroscopies) groups based on reported experience in arthroscopy. Face and content validity was evaluated by feedback from users immediately following completion of modules. Objective measurements, including time taken and subjective measurements consisting of simulation software metrics including, cam lesion locations attempts, scope strikes on bone, healthy bone burred, and cam lesion burred. Scores achieved by experts were recorded, and the median score was set at the level at which proficiency was demonstrated. Participant feedback on perceived educational use was collected following completion.ResultsIn total, 20 participant results were included for analysis. Good face and content validity was expressed by participants with previous arthroscopic experience. Number of scope strikes within the simulator-derived metrics accurately discerned between levels of experience. Novices had a mean of 5 strikes per attempt (SD ±5), intermediates a mean of 5.8 strikes (SD ± 4.1). There was a significant difference between expert and novice groups (P = .01), and expert and intermediate groups (P = .002). No significant difference between overall performance scores achieved by participants in expert, intermediate, and novice groups (62% ±19 vs 55% ±22 vs 50% ±23, P = .15). This demonstrates incomplete construct validity of the simulator software-derived metrics.ConclusionsThis hip arthroscopy simulator demonstrated acceptable face and content validity, with incomplete construct validity of simulator software metrics. Participants reported high levels of satisfaction with the module, highlighting that the addition of haptic feedback would be beneficial to improve procedural steps. Incorporation of tactile feedback to the modulator components would likely enable the software to accurately delineate between levels of experience.Clinical relevanceThis study demonstrates good face and content validity. The addition of haptic feedback in a hip arthroscopy simulator may improve learning.

Project description:PurposeLimited data exist on the actual transfer of skills learned using a virtual reality (VR) simulator for arthroscopy training because studies mainly focused on VR performance improvement and not on transfer to real word (transfer validity). The purpose of this single-blinded, controlled trial was to objectively investigate transfer validity in the context of initial knee arthroscopy training.MethodsFor this study, 36 junior resident orthopaedic surgeons (postgraduate year one and year two) without prior experience in arthroscopic surgery were enrolled to receive standard knee arthroscopy surgery training (NON-VR group) or standard training plus training on a hybrid virtual reality knee arthroscopy simulator (1 h/month) (VR group). At inclusion, all participants completed a questionnaire on their current arthroscopic technical skills. After 6 months of training, both groups performed three exercises that were evaluated independently by two blinded trainers: i) arthroscopic partial meniscectomy on a bench-top knee simulator; ii) supervised diagnostic knee arthroscopy on a cadaveric knee; and iii) supervised knee partial meniscectomy on a cadaveric knee. Training level was determined with the Arthroscopic Surgical Skill Evaluation Tool (ASSET) score.ResultsOverall, performance (ASSET scores) was better in the VR group than NON-VR group (difference in the global scores: p < 0.001, in bench-top meniscectomy scores: p = 0.03, in diagnostic knee arthroscopy on a cadaveric knee scores: p = 0.04, and in partial meniscectomy on a cadaveric knee scores: p = 0.02). Subgroup analysis by postgraduate year showed that the year-one NON-VR subgroup performed worse than the other subgroups, regardless of the exercise.ConclusionThis study showed the transferability of the technical skills acquired by novice residents on a hybrid virtual reality simulator to the bench-top and cadaveric models. Surgical skill acquired with a VR arthroscopy surgical simulator might safely improve arthroscopy competences in the operating room, also helping to standardise resident training and follow their progress.Level of evidence: 2

Project description:Objectives: Attention Restoration Theory (ART) suggests that walking or being in natural settings, as opposed to urban environments, benefits cognitive skills because it is less demanding on attentional resources. However, it is unclear whether the same occurs when the person is performing a complex task such as driving, although it is proven that driving through different road environments is associated with different levels of fatigue and may engage attention differently. The present study investigated whether exposure to rural vs. urban road environments while driving would affect attentional capacity in young people after the drive, in line with the classic ART paradigms. Methods: We asked 38 young participants to complete the Sustained Attention to Response Task (SART) before and after being exposed to a rural or urban road in a virtual reality environment while driving in a full vehicle immersive driving simulator. Changes in SART performance based on environmental exposure where explored in terms of target sensitivity, accuracy, reaction times, and inverse efficiency. We analyzed potential road type effects on driving speed and accuracy. Possible effects of driving on attention were tested by comparing the sample performance to that of a control group of 15 participants who did not drive and sat on the passenger seat instead. Results: Exposure to rural or urban road environments in the driving sample was not associated with any significant changes in attentional performance. The two exposure groups did not differ significantly in terms of driving behavior. Comparisons between the driving sample and the control group controlling for age indicated that participants who drove were more accurate but slower at the SART than those who were passengers. Conclusion: The present study does not support the hypothesis that a short drive in a natural setting may promote attention restoration as compared to an urban setting. Methodological considerations as well as recommendations for future research are discussed.

Project description:PurposeTo investigate whether the use of a VR arthroscopic simulator can influence medical students' attitudes toward a career in orthopaedic surgery.MethodsTwenty-five medical students completed seven unsupervised sessions on a VR hip-arthroscopic simulator. All participants completed a pre-simulator and post-simulator pseudo-anonymized questionnaire consisting of 10 questions: six 10-point Likert scale questions addressing their interest in orthopaedics, surgery, and arthroscopy; and four 5-point Likert scale questions addressing their attitudes toward simulation. Prepaired and postpaired datasets were analyzed using Wilcoxon signed rank test.ResultsInterest in both orthopaedics and surgery was found to increase after simulator use (orthopaedics: 5.3 ± .3 to 8.4 ± .2, P = .0001; surgery: 5.8 ± .3 to 9.0 ± .2; P = .0001). It was also found that simulator use increased participants' interest in arthroscopy (5.4 ± .3 to 8.0 ± .3; P = .0001) and hip-arthroscopy (5.0 ± .3 to 7.6 ± .3; P = .0001). Participants reported they were more likely to attend endoscopic and arthroscopic surgical lists after simulator use (endoscopic: 6.9 ± .3 to 8.4 ± .2; P = .0003; arthroscopic: 5.9 ± .3 to 8.4 ± .2; P = .0001). After using the simulator, participants felt more strongly that VR simulation is a valuable training modality (P = .0025), that simulation should be a mandatory part of orthopaedics and surgical training (P = .0001 and P = .0001), and that access to VR simulators improves the quality of surgical training (P = .0024).ConclusionsThese results demonstrate that exposure to VR arthroscopic simulation increased medical students' interest in orthopaedics, surgery, and arthroscopy, without the need for direct supervision. Following VR simulator use, students reported they were more likely to engage with training opportunities, including arthroscopic and endoscopic surgery.Clinical relevanceUnderstanding factors that stimulate interest in orthopaedic surgery may help programs attract the broadest pool of potential trainees.

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Virtual reality hip arthroscopy simulator demonstrates sufficient face validity.

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Virtual reality hip arthroscopy simulator demonstrates sufficient face validity.

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