Senior Trainees Research Articles

FIELDRT: an open-source platform for the assessment of target volume delineation in radiation therapy

Objectives:Target volume delineation (TVD) has been identified as a weakness in the accuracy of radiotherapy, both within and outside of clinical trials due to the intra/interobserver variations affecting the TVD quality. Sources of variations such as poor compliance or protocol violation may have adverse effect on treatment outcomes. In this paper, we present and describe the FIELDRT software developed for the ARENA project to improve the quality of TVD through qualitative and quantitative feedbacks and individual and personalized summary of trainee”s performance.Methods:For each site-specific clinical case included in the FIELDRT software, reference volumes, minimum and maximum “acceptable” volumes and organ at risk were derived by outlines of consultants and senior trainees. The software components currently developed include: (a) user-friendly importing interface (b) analysis toolbox to compute quantitative and qualitative (c) visualiser and (d) structured report generator for personalised feedback. The FIELDRT software was validated by comparing the performance of 63 trainees and by measuring performance over time. In addition, a trainee evaluation day was held in 2019 to collect feedback on FIELDRT.Results:Results show the trainees’ improvement when reoutlining a case after reviewing the feedback generated from the FIELDRT software. Comments and feedback received after evaluation day were positive and confirmed that FIELDRT can be a useful application for training purposes.Conclusion:We presented a new open-source software to support education in TVD and ongoing continuous professional development for clinical oncology trainees and consultants. ARENA in combination with FIELDRT implements site-specific modules with reference target and organs at risk volumes and automatically evaluates individual performance using several quantitative and qualitative feedbacks. Pilot results suggests this software could be used as an education tool to reduce variation in TVD so to guarantee high quality in radiotherapy.Advances in knowledge:FIELDRT is a new easy and free to use software aiming at supporting education in TVD and ongoing continuous professional development. The software provides quantitative/qualitative feedback and an exportable report with an individual and personalised summary of trainee’s performance.

Maintaining technical proficiency in senior surgical fellows during the COVID-19 pandemic through virtual teaching

BackgroundThe novel coronavirus (COVID-19) pandemic has resulted in a severe reduction in operative opportunities for trainees. We hypothesized that augmenting independent practice with a bench model of vascular anastomoses using regular videoconferences and individual feedback would provide a meaningful benefit in the maintenance of technical skills in senior lung transplant surgical fellows. MethodsA lung transplantation virtual technical skills course was developed, and surgical fellows were provided with a bench model and surgical instruments. Using a virtual communication platform, teaching sessions were held twice weekly, and fellows performed an anastomosis on camera. Video recordings were reviewed and critiqued by attending staff. At the end of the 3-month course, participants were surveyed about their experience. Warm ischemic time was compared between the fellows' 5 most recent cases before and after the pandemic. ResultsSeven senior surgical fellows participated and provided feedback. The fellows had graduated medical school an average of 14 years before fellowship, and spent an average of 5 hours (range, 1.3-15 hours) of home practice. Five of the 7 participants (71%) reported improvement in their technical skills and increased confidence in performing lung transplantation. No significant difference in average warm ischemic time in procedures performed by fellows was identified (70.3 minutes prepandemic vs 68.3 minutes postpandemic; P = .68). ConclusionsA program of virtual technical skills teaching, individual video coaching, and independent practice has provided a benefit in maintaining technical skills in lung transplant surgical fellows during the COVID-19 pandemic, when equivalent operative experience was unavailable. Lessons learned from this exceptional time can be used to create simulation curricula for senior trainees.

Mixed-Methods Analysis of a Validated Arthroscopic Knot-Tying Simulator With New Indirect Visualization Condition.

Background:Simulation provides low-risk opportunities for surgical trainees to learn and practice fundamental skills. One simulation tool for orthopaedics is the Arthroscopic Knot (ArK) Trainer, which has been validated as an effective simulation tool across multiple methodologies. Previous studies have investigated the ArK Trainer in its basic form using clear plexiglass, which allows direct visualization of tissue anchors.Purpose:Using a mixed-methods approach, we assessed and compared junior and senior trainees’ Seoul Medical Center (SMC) knot–tying performance under direct and indirect visualization.Study Design:Cross-sectional study.Methods:Fourteen orthopaedic surgery postgraduate trainees at a single medical school were recruited to participate. Trainees tied SMC knots using the Ark Trainer under direct and indirect visualization. A mixed-methods approach was used to evaluate knot-tying proficiency and characterize participants’ approach to knot-tying. Knot-tying proficiency was evaluated using validated tools: a task-specific checklist (TSC), a global rating scale (GRS), and a proficiency scale (PS). Participants’ approach to knot-tying was characterized using Likert-type questionnaires and semistructured interviews. An α level of .10 was set a priori owing to the small pool of trainees.Results:The 14 participants included 7 junior residents (postgraduate years [PGYs] 1 and 2) and 7 senior residents (PGY ≥3), of whom 3 were fellows (PGY 6). Senior trainees outperformed junior trainees on both versions of the ArK Trainer: clear (GRS, P = .055; PS, P = .075) and covered (TSC, P = .05). Overall, participants performed better under direct visualization conditions (GRS, P = .05). In semistructured interviews, significantly more senior trainees discussed relying on haptic cues while tying knots under direct visualization (P = .021). The majority of trainees agreed that both versions of the ArK Trainer were realistic and appropriate practice formats for their level of training.Conclusion:Senior trainees were significantly more experienced than were junior trainees in arthroscopic skill and outperformed them on both configurations: direct (PS and GRS) and indirect (TSC) visualization. Experienced trainees were significantly more likely to report using tactile cues to aid knot-tying under indirect visualization. It is likely that inexperienced trainees rely more heavily on direct visualization and that the use of tactile cues may be an indicator of knot-tying proficiency. Trainees recommended progression from direct to indirect visualization configurations for inexperienced learners.

Hot Seat Diagnosis.

Competency-based medical education relies on frequent formative in-service assessments to ascertain trainee progression. Currently at our institution, trainees receive a summative end-of-rotation In-Training Evaluation Report based on feedback collected from staff pathologists. There is no method of simulating report sign-out. To develop a formative in-service assessment tool that is able to simulate report sign-out and provide case-by-case feedback to trainees. Further, to compare time- versus competency-based assessment models. Twenty-one pathology trainees were assessed for 20 months. Hot Seat Diagnosis by trainees and trainee assessment by pathologists were recorded in the laboratory information system. In the first iteration, trainees were assessed by using a time-based assessment scale on their ability to diagnose, report, use ancillary tests, comment on clinical implications, and provide intraoperative consultation and/or gross cases. The second iteration used a competency-based assessment scale. Trainees and pathologists completed surveys on the effectiveness of the In-Training Evaluation Report versus the Hot Seat Diagnosis tool. Scores from both iterations correlated significantly with other assessment tools including the Resident In-Service Examination (r = 0.93, P = .04 and r = 0.87, P = .03). The competency-based model was better able to demonstrate improvement over time and stratify junior versus senior trainees than the time-based model. Trainees and pathologists rated Hot Seat Diagnosis as significantly more objective, detailed, and timely than the In-Training Evaluation Report, and effective at simulating report sign-out. Hot Seat Diagnosis is an effective tool for the formative in-service assessment of pathology trainees and simulation of report sign-out, with the competency-based model outperforming the time-based model.

The Magnetic Resonance Safety Officer (MRSO) Role

The transition toward value-based payment models increases focus on the radiologist's direct impact on hospital-provided patient care. Radiology trainees understand inpatient hospital workflows and decision-making paradigms and are well positioned to interface directly with hospital physicians regarding clinical decision making related to diagnostic imaging and/or image guided interventions. A radiology resident-led project with internal medicine residents focused on Clinical Decision Support was designed, implemented, and reviewed, with the objectives of educating clinical teams and positively impacting patient care.During the 2017-2018 academic year, senior radiology residents (PGY-5) led weekly rounds with medicine residents rotating through inpatient floor units. During these rounds, they discussed indications for and types of hospital inpatient imaging studies, exchanged clinical information, directed further imaging workup, and taught the essentials of image interpretation. Participating medical residents’ degree of radiology-awareness and opinions were systematically surveyed at the conclusion of the academic year. Thirty-four out of a total of 161 (21%) Internal Medicine residents responded to the survey. Thirty one percent of these residents could identify an instance where radiology-led rounds altered patient management and 94% acknowledged an increase in medical knowledge. Sixty-one percent believed evidence-based choice for imaging orders was enhanced by attending radiology-led rounds and 64% developed a better understanding of resources available to guide image ordering. Forty-nine percent of residents made suggestions to their Internal Medicine attending physician or more senior trainee or otherwise applied something learned during radiology-led rounds and 42% cancelled or ordered a study based on what they learned or discussed in radiology rounds. Thirty-nine percent of medicine residents stated that these rounds changed their perception of the role of the radiologist and 75% expressed the desire to see increased participation by radiologists in their daily workflow. Radiology resident-led educational medicine rounds promote cross-specialty collaboration, further educate trainees, and directly affect patient management. It is therefore valuable for radiology trainees to directly engage in the teaching of other medical providers, to enhance their own consultative skill set, promote face-to-face interactions with other physicians, and to directly impact patient care.

Comparison of reporting radiographers' and medical doctors' performance in reporting radiographs of the appendicular skeleton, referred by the emergency department

IntroductionThere is an increasing trend towards deploying reporting radiographers in Danish hospitals who, among various professional groups, interpret and report skeletal radiographs from the emergency department (ED). This study aimed to compare the quality of the reports issued by reporting radiographers to three different groups of medical doctors (MDs) who interpret or report skeletal radiographs at the ED. MethodsFour professional groups (i.e. four reporting radiographers, two radiology trainees, two orthopaedic senior trainees, and two orthopaedic trainees) reported 100 radiographs of the appendicular skeleton. The Consequence of clinical Outcome score (CO-score), accuracy, sensitivity, and specificity of each group were compared. The relative risk of a false-negative, false-positive or wrong result, the risk of a serious error, as well as the odds ratio of a more severe CO-score for each of the three MD groups, were compared to the reporting radiographers. ResultsThere was a significant difference between the groups in reference to the CO-score (P ≤ 0.001), accuracy (P = .003), specificity (P = .022), and in the proportion of serious errors (P ≤ 0.001). Compared to the reporting radiographers, all three groups of MDs showed a significantly higher CO-score and a significantly increased risk of a wrong result. Moreover, two of the MD groups showed a significantly increased risk of a false-positive result and for severe errors. ConclusionBased on the CO-score, the relative risk of errors, which could potentially cause malpractice in treatment and patient recall, significantly decreased when the reports were completed by reporting radiographers. Implications for practiceTo explore the need for a 24-h radiographer reporting service to the EDs, an upscaled study, like the current, with more participants representing the professional groups is highly recommended.

959 Undertaking Core Surgical Training Less Than Full Time: A Qualitative Study of Experiences

Abstract Introduction The Royal College of Surgeons identifies Less Than Full Time Training (LTFT) as a key factor in attracting excellent candidates at Core level. Previous evaluations of LTFT have, however, focused on ST3 and beyond. This study focuses on Core Surgical Training (CST), to determine how well it is delivering for LTFT trainees. Method Participants undertaking any part of CST LTFT were eligible. An electronic, self-administered questionnaire was accessed by participants. Results There were 11 participants. The majority (55%) rated the information available, which often related to more senior trainees, as poor. A third reported it ‘very difficult’ to arrange a LTFT training post. A significant proportion felt their access to operative experience was decreased and 45% reported feeling less confident. Positive aspects were improved work-life balance and being able to maintain a surgical career with a family. Suggestions for improvements included normalising LTFT in surgery to reduce stigma, having dedicated LTFT TPDs, clear pathways, and longer rotations. Conclusions Training LTFT offers many benefits – not least, increasing workforce diversity. However, for many, training LTFT at Core level produces additional stress, work and stigma. If the surgical community is serious about maintaining an excellent, diverse workforce, these issues should be tackled sooner rather than later.

548 “The New Normal”? How We Adapted Simulation Training in The Midst of the Coronavirus Pandemic

IntroductionDelivering high quality teaching during an international pandemic is challenging but becomes increasingly important when trainees are taking on new roles and responsibilities. Instead of ceasing our simulation programme, we adapted it to comply with local infection control guidelines. We devised in-situ high-fidelity ward round simulations for all levels of trainee, from newly qualified doctors to senior registrars.MethodThe ward round consisted of three simulated patients with a range of conditions appropriate for the level of trainee, role-played by faculty members. The simulations were offered to all Foundation Year Doctors, Junior Middle Grade Doctors and Surgical Speciality Trainees with all participants wearing Personal Protective Equipment (PPE) according to COVID-19 infection control policy.ResultsA total of 81 trainees took part in the simulations. Almost all reported it as ‘very useful’ and that it improved confidence in progressing to the next stage of their career. Trainees also found it enjoyable and that personalised feedback allowed them to identify areas for development.ConclusionsWe have shown that ward round simulations can be run safely and effectively despite current COVID-19 restrictions. Even senior trainees found that a ward round simulation was useful and were keen to see it become a regular part of deanery teaching.

Effecting a national implementation project through distributed leadership in the West Midlands: rising to the spread challenge

We describe the utility and impact of a distributed leadership model to implement a National Health Service (NHS) England Academic Health Sciences national quality improvement programme, in the West Midlands....

Abstract No. 179 Interventional radiology trainee perspectives on clinical training paradigm and trends on future job perception

Abstract No. 179 Interventional radiology trainee perspectives on clinical training paradigm and trends on future job perception

Virtual reality as a learning tool in spinal anatomy and surgical techniques

BackgroundSurgical simulation is a valuable educational tool for trainees to practice in a safe, standardized, and controlled environment. Interactive feedback-based virtual reality (VR) has recently moved to the forefront of spine surgery training, with most commercial products focusing on instrumentation. There is a paucity of learning tools directed at decompression principles. The purpose of this study was to evaluate the efficacy of VR simulation and its educational role in learning spinal anatomy and decompressive techniques. MethodsA VR simulation module was created with custom-developed software. Orthopaedic and neurosurgical trainees were prospectively enrolled and interacted with patient-specific 3D models of lumbar spinal stenosis while wearing a headset. A surgical toolkit allowed users to perform surgical decompression, specifically removing soft tissues and bone. The module allowed users to perform various techniques in posterior decompressions and comprehend anatomic areas of stenosis. Pre- and post-module testing, and utility questionnaires were administered to provide both quantitative and qualitative evaluation of the module as a learning device. Results28 trainees were enrolled (20-orthopaedic, 8-neurosurgery) in the study. Pre-test scores on anatomic knowledge progressively improved and showed strong positive correlation with year-in-training (Pearson's r = 0.79). Following simulation, the average improvement in post-test scores was 11.4% in junior trainees (PGYI-III), and 1.0% in senior trainees (PGYIII-Fellows). Knowledge improvement approached statistical significance amongst junior trainees (p = 0.0542). 89% of participants found the VR module useful in understanding and learning the pathology of spinal stenosis. 71% found it useful in comprehending decompressive techniques. 96% believed it had utility in preoperative planning with patient-specific models. ConclusionsOur original VR spinal decompression simulation has shown to be overwhelmingly positively received amongst trainees as both a learning module of patho-anatomy and patient-specific preoperative planning, with particular benefit for junior trainees.

Learner reflections on a postgraduate emergency medicine simulation curriculum: a qualitative exploration based on focus group interviews.

To describe postgraduate emergency medicine (EM) residents' perceptions of simulation-based curriculum immediately post-simulation training. This interpretive qualitative study explores residents' reflections on a city-wide, adult EM simulation-based curriculum. Focus group interviews gather residents' insights immediately post-simulation. Postgraduate trainees from the University of Toronto EM residency program were eligible to participate. We explored participants' perceptions of how well learning objectives were addressed, helpful/challenging aspects of the simulations, feelings during sessions, debriefing/pre-briefing, simulation integration into the broader EM curriculum, and anticipated changes in practice after the session. Our findings indicate that EM residents' learning goals for the simulation sessions evolve as they progress through residency training. Junior trainees report performance-oriented goals while senior trainees report learning-oriented goals. Differing motivations may affect residents' perceptions of the quality of the simulation experience. Junior residents want to feel prepared for the scenario and primed with the appropriate knowledge to manage the case. Senior residents focus on developing teamwork competencies and on mastering new clinical skills in the simulation environment. Junior and senior emergency medicine residents differ in their goal orientation during simulation-based training. Educators who develop simulation-based curricula should be mindful that junior residents may benefit from preparatory materials while senior residents prefer to be challenged. Resident reflections may significantly contribute to improvement of simulation-based curricula.

Self-Perceived Comfort Performing Vascular Surgery Procedures among Senior Vascular Surgery Trainees and Recent Graduates

In the last two decades, vascular surgery training evolved from exclusively learning open skills to learning endovascular skills in addition to a functional reduction in training duration with 0+5 residency programs. The implications for this on trainee evolution to independence are unknown. We aimed to assess self-perceived comfort performing open and endovascular procedures and to identify predictors of high comfort among senior vascular surgery trainees and recent graduates. Junior and senior 0+5 vascular surgery residents, traditional fellows, and attendings in their first 4 years of practice were asked to complete a survey assessing the number of vascular procedures performed to date, comfort performing these procedures on a Likert scale, and validated scales of self-efficacy and grit. Groups were then matched by training level and age. Logistic regression identified independent predictors of the top quartile of self-perceived comfort performing procedures. Surveys were completed by 92 trainees and 71 attending surgeons in their first 4 years of practice. After matching, completing ≥7 open juxtarenal aortic repairs (OR = 4.73, 95% CI = 1.59-14.07) and a higher self-efficacy score (OR = 3.24, 95% CI = 1.20-8.76), were independent predictors of top quartile comfort performing open vascular procedures. 0+5 residency training inversely correlated with top quartile comfort performing open vascular operations (OR = 0.12, 95% CI = 0.03-0.47). Completing ≥7 complex EVARs (OR = 3.94, 95% CI = 1.61-9.59) and a higher self-efficacy personality score (OR = 2.76, 95% CI = 1.09-7.02) were predictors of top quartile comfort performing endovascular procedures. In this nationally representative survey, both trainees and junior attendings completed a paucity of complex open vascular cases, which corresponded to reduced comfort performing these procedures. Furthermore, 0+5 residency training was associated with lower self-perceived comfort performing open vascular surgery, a trend that persisted through the first years of practice. Endovascular comfort did not show a similar correlation.

Assessing the learning curve associated with a novel flexible robot in the pre-clinical and clinical setting

BackgroundTransoral robotic surgery has been successfully used by head and neck surgeons for a variety of procedures but is limited by rigid instrumentation and line-of-sight visualization. Non-linear systems specifically designed for the aerodigestive tract are needed. Ease of use of these new systems in both training and clinical environments is critical in its widespread adoption.MethodsResidents, fellows, and junior faculty performed four tasks on an anatomical airway mannequin using the Medrobotics FLEX™ Robotic System: expose and incise the tonsil, grasp the epiglottis, palpate the vocal processes, and grasp the interarytenoid space. These tasks were performed once a day for four days; after a 4-month time gap, subjects were asked to perform these same tasks for three more days. Time to task completion and total distance driven were tracked. In addition, a retrospective analysis was performed analyzing one attending physician’s experience with clinical usage of the robot.Results13 subjects completed the initial round of the mannequin simulation and 8 subjects completed the additional testing 4 months later. Subjects rapidly improved their speed and efficiency at task completion. Junior residents were slower in most tasks initially compared to senior trainees but quickly reached similar levels of efficiency. Following the break there was minimal degradation in skills and continued improvement in efficiency was observed with additional trials. There was significant heterogeneity in the analyzed clinical cases, but when analyzing cases of similar complexity and pathology, clear decreases in overall operative times were demonstrable.ConclusionNovice users quickly gained proficiency with the FLEX™ Robotic System in a training environment, and these skills are retained after several months. This learning could translate to the clinical setting if a proper training regimen is developed. The Medrobotics FLEX™ Robotic System shows promise as a surgical tool in head and neck surgery in this study.

Concise Reporting of Benign Endometrial Biopsies is an Acceptable Alternative to Descriptive Reporting.

In the United Kingdom, endometrial biopsy reports traditionally consist of a morphologic description followed by a conclusion. Recently published consensus guidelines for reporting benign endometrial biopsies advocate the use of standardized terminology. In this project we aimed to assess the acceptability and benefits of this simplified "diagnosis only" format for reporting non-neoplastic endometrial biopsies. Two consultants reported consecutive endometrial biopsies using 1 of 3 possible formats: (i) diagnosis only, (ii) diagnosis plus an accompanying comment, and (iii) the traditional descriptive format. Service users were asked to provide feedback on this approach via an anonymized online survey. The reproducibility of this system was assessed on a set of 53 endometrial biopsies among consultants and senior histopathology trainees. Of 370 consecutive benign endometrial biopsies, 245 (66%) were reported as diagnosis only, 101 (27%) as diagnosis plus a brief comment, and 24 (7%) as diagnosis following a morphologic description. Of the 43 survey respondents (28 gynecologists, 11 pathologists, and 4 clinical nurse specialists), 40 (93%) preferred a diagnosis only, with 3 (7%) being against/uncertain about a diagnosis only report. Among 3 histopathology consultants and 4 senior trainees there was majority agreement on the reporting format in 53/53 (100%) and 52/53 (98%) biopsies. In summary, we found that reporting benign specimens within standardized, well-understood diagnostic categories is an acceptable alternative to traditional descriptive reporting, with the latter reserved for the minority of cases that do not fit into specific categories. This revised approach has the potential to improve reporting uniformity and reproducibility.

Quality of radiology training and role of Royal Australian and New Zealand College of Radiology in supporting radiology trainees in NSW: Results of the first radiology trainee survey.

The Royal Australian and New Zealand College radiology training programme is a 5-year programme with a vast curriculum including reporting and research requirements. Undertaking training can be stressful for trainees who must balance their educational needs and work responsibilities. We undertook the first independent survey of New South Wales (NSW) radiology trainees to evaluate their perceptions about the quality of their training. Focus groups with trainees from multiple NSW training sites were conducted to construct a survey which was then distributed to all NSW Radiology trainees (n=118). Data from the survey were analysed, and factors correlating to the overall satisfaction with the programme were explored using Spearman's correlation. Survey response rate was 70.3%. Eighty-nine per cent of trainees were satisfied with their career choice, and 73% were satisfied with the training programme. Majority felt they had a good exposure to cases, modalities and access to resources to complete their training. Trainee satisfaction significantly correlated with a supportive work environment (rs =0.83, P<0.0001), which involved supportive consultants (rs =0.75, P<0.0001), good peer support (rs =0.60, P<0.0001) and their training site respecting work/life balance (rs =0.62, P<0.0001). As trainees progressed through the training programme, they became less satisfied, with trainees in years 3 and above being the most dissatisfied. NSW radiology trainees are generally satisfied with their training programme and career choices. Trainee satisfaction correlated most strongly with supportive work environment, good consultant support, peer relationships and good work/life balance; satisfaction decreased for senior trainees.

Knowledge, attitude, and practice regarding atrial fibrillation among primary care physicians: the potential role of postgraduate training.

Atrial fibrillation (AF) is known to lead to stroke and thromboembolism, causing a five-fold increase in the risk of stroke and almost doubling the mortality rate. Optimal anticoagulant therapy is effective in reducing AF-related death. However, prescription of anticoagulants in AF in East Asian countries has been low, ranging from 0.5% to 28%. This study aimed to determine whether vocational training in family medicine improves primary care physicians' knowledge, attitude, and practice in the management of AF. This investigation was a cross-sectional study carried out during centralized workshops for two groups of trainees using a validated questionnaire: (i) junior trainees were newly enrolled postgraduate trainees in the Graduate Certificate in Family Medicine (GCFM) program, and (ii) senior trainees were postgraduate trainees in Advance Training in Family Medicine (ATFM) programs of the Academy of Family Physicians of Malaysia (AFPM). A total of 223 trainees (127 junior and 96 senior) participated in this study. Only 55.2% of the trainees passed the knowledge test; senior trainees were more likely to pass the knowledge test compared to junior trainees (69.8% vs. 44.1%, p < 0.001). Female trainees were significantly more likely to pass the knowledge test than male trainees. While the attitude of senior and junior trainees was similar, more of the latter group worked in public clinic that provide better support where there is better support for outpatient anticoagulation treatment (e.g., same-day INR test, direct access echocardiogram, and warfarin in in-house pharmacy). Vocational training in family medicine appears to improve primary care physicians' knowledge regarding the management of AF. Better knowledge will help vocationally trained primary care physicians to provide anticoagulation treatment for AF within primary care clinics. More optimal AF management within primary care can take place if the identified barriers are addressed and a shared care plan can be implemented.

The Arthroscopic Surgery Skill Evaluation Tool Global Rating Scale is a Valid and Reliable Adjunct Measure of Performance on a Virtual Reality Simulator for Hip Arthroscopy

The purpose of this study is to further evaluate the construct validity and interobserver reliability of a hip arthroscopy virtual simulator using the Arthroscopic Surgery Skill Evaluation Tool (ASSET) global rating scale. Thirty participants (23 male/7 female) completed a diagnostic arthroscopy and a loose body retrieval simulation on the VirtaMed Arthros Hip Simulator (Zurich, Switzerland) twice at a minimum of 1 week apart. Subjects consisted of 12 novices (medical students, postgraduate year [PGY] 1-2), 5 intermediate trainees (PGY3-4), 9 senior trainees (PGY5 and fellows), and 4 attending faculty. Simulator metrics were recorded and then compiled to generate a total simulator score (TSS). The loose body retrieval was graded using the ASSET scoring tool. Inter-rater and intrarater reliability for the ASSET for 2 blinded raters and construct validity of the ASSET and the TSS were calculated. Correlation between the TSS, ASSET and individual simulator metrics was determined. Prior simulation experience (P ≤ 0.01) correlated with higher TSS and higher ASSET, while video game experience correlated with higher TSS on the diagnostic module only (P= 0.004). There was a significant difference in ASSET score among all experience groups (P < 0.04). Novices had the lowest mean ASSET whereas experts had the highest mean ASSET with a difference of 17.4 points. Overall performance on the surgical module significantly correlated with the ASSET score (r= 0.444, P= 0.016). There was a significant positive correlation among higher ASSET and number of loose bodies retrieved, operation time, camera path and grasper path length, and percentage of cartilage injury. ASSET demonstrated excellent intrarater reliability and showed substantial or better inter-reliability in 8 of 9 domains. The VirtaMed hip arthroscopy simulator demonstrated good construct validity and excellent reliability for simulator-based metrics and ASSET score. Use of both simulator metrics and ASSET offers a more comprehensive performance assessment on hip arthroscopy simulation than either measure alone. As virtual reality simulation for arthroscopy becomes more commonplace in orthopaedic training, evaluation of the most effective objective and subjective measures of performance is necessary to optimize simulation training.

Influence and Information in Team Decisions: Evidence from Medical Residency

I study team decisions among physician trainees. Exploiting a discontinuity in team roles across trainee tenure, I find evidence that teams alter decision-making, concentrating influence in the hands of senior trainees. I also demonstrate little convergence in variation of trainee effects despite intensive training. This general pattern of trainee effects on team decision-making exists in all types of decisions and settings that I examine. In analyses evaluating mechanisms behind this pattern, I find support for the idea that significant experiential learning occurs during training and that teams place more weight on judgments of senior trainees in order to aggregate information. (JEL D83, I11, J44, M53, M54)

Factors leading to failure of fixation of femoral neck fractures in young adults: a retrospective study among a cohort of Egyptian population

Background: Failed internal fixation of femoral neck fractures in young, active adults is a multifactorial problem leading to poor outcome. Although anatomical reduction and stable fixation are essential for operative success, other factors can be associated with high failure rates. The ideal protocol for management is challenging and a continued topic of study. The aim of our study was to detect factors leading to failure of fixation of femoral neck fractures in young adults. Materials and Methods: This retrospective study involved 17 patients with failed femoral neck fracture fixation at Cairo University Hospital. Inclusion criteria were patients from 18 to 60 yr old with all types of femoral neck fractures. Patients data were recorded for demographics, timing of surgery, initial fracture displacement, method of reduction, method of fixation, bone mineral density, and the level of surgeon experience. Results: The mean age was 40±10 yr. Accuracy of reduction, junior surgeons, displaced fractures, and poor implant configuration were the main factors associated with failures. In addition, low bone mineral density also was a potential factor for failure. Delayed fixation did not seem to be a significant cause of failure. Conclusions: Initial fracture displacement and accuracy of reduction are potential factors for fixation failure of femoral neck fractures. Although dynamic hip screws result in fewer early failures than multiple cannulated screws, this difference did not reach statistical significance. Fixation of femoral neck fractures in young adults should be performed by senior trainees under supervision. We recommend operating when optimal conditions are provided rather than on an emergency basis. Level of Evidence: Level III.