Orthopedic surgeons' transition into full-time practice over the last 20 years: an analysis using Ministry of Health billing data.

BACKGROUND: Underemployment is a reality for many new graduates, who accept locum or part-time work as an alternative to unemployment because of lack of opportunities. We sought to analyze orthopedic surgeons' Ontario Health Insurance Program (OHIP) billing data over a 20-year period as a proxy of practice patterns and hypothesized that billing in the first 6 years of practice would be affected by underemployment and locum. METHODS: We analyzed the annual average billing totals of orthopedic surgeons, broken down by year of graduation, year of billings, and number of surgeons billing in that year. We analyzed public census data of the Ontario population size as a proxy of orthopedic demand. RESULTS: A 2019 cross-sectional analysis showed that around 15 surgeons per graduating year were billing in Ontario from the 1995 to 2016 cohorts, while 2017 and 2018 saw an increase to 30 and 36 actively billing surgeons, respectively. The number returned to more historical numbers in 2019, with 20 actively billing surgeons. For those surgeons billing in Ontario, billing trends have been roughly stable, with average billings increasing each year for the first 6 years in practice (p < 0.001). Year of graduation did not have an effect on the first 6 years of billings (p > 0.5). Billings were stable after 6 years in practice (p > 0.09). CONCLUSION: The Ontario health care system has not expanded to support more orthopedic surgeons despite the aging and growing population; despite our growing population, the number of surgeons being trained and retained has not matched this growth. Further research needs to be done to guide optimal health human resource decision-making.

Active Retrieval Improves Procedural Learning in Orthopedic Surgery.

OBJECTIVE: Tests are shown to enhance learning: this is known as the "testing effect". The benefit of testing is theorized to be through "active retrieval", which is the effortful process of recalling stored knowledge. This differs from "passive studying", such as reading, which is a low effort process relying on recognition. The testing effect is commonly studied in random word list scenarios and is thought to disappear as complexity of material increases. Little is known about the testing effect in complex situations such as procedural learning. Therefore, we investigated if testing improves procedural learning of fracture fixation as compared to "passive studying". DESIGN, SETTING, AND PARTICIPANTS: Fifty participants watched an instructional video of an open reduction internal fixation of a Sawbones™ femur. Participants then performed the procedure under guided supervision (pretest). After randomization, they either read the steps (passive studying group), or wrote down the steps from memory (active retrieval group) for a period of 15 minutes. After a washout period, all participants performed the procedure without guidance (posttest) and then once more, 1 week after the initial testing (retention test). The participants were assessed using the Objective Structured Assessment of Technical Skill. Each performance was video recorded for data analysis purposes. RESULTS: Participants in the passive studying group had significantly higher Objective Structured Assessment of Technical Skill scores during immediate assessment compared to the active retrieval group (p = 0.001), especially with respect to remembering the correct order of the steps (p = 0.002). The percentage of information forgotten was significantly less in the active retrieval group (p = 0.02) at the retention test. CONCLUSION: We demonstrated that, compared to passive studying, testing with active retrieval through writing resulted in better retention of fracture fixation knowledge (i.e., less forgetting). These findings can easily be applied and incorporated in existing curricula. Future studies are needed to determine the effects of different kinds of active retrieval methods such as verbal retrieval (e.g., dictating) in surgical practice.

Cost and safety of inpatient versus outpatient open reduction internal fixation of isolated ankle fractures.

BACKGROUND: As health care shifts to value-based models, one strategy within orthopedics has been to transition appropriate cases to outpatient or ambulatory settings to reduce costs; however, there are limited data on the efficacy and safety of this practice for isolated ankle fractures. The purpose of this study was to compare the cost and safety associated with inpatient versus outpatient ankle open reduction internal fixation (ORIF). METHODS: All patients who underwent ORIF of isolated closed ankle fractures at 2 affiliated hospitals between April 2016 and March 2017 were identified retrospectively. Demographic characteristics, including age, gender, comorbidities and injuryspecific variables, were collected. We grouped patients based on whether they underwent ankle ORIF as an inpatient or outpatient. We determined case costing for all patients and analyzed it using multivariate regression analysis. RESULTS: A total of 196 patients (125 inpatient, 71 outpatient) were included for analysis. Inpatients had a significantly longer mean length of stay than outpatients (54.3 h [standard deviation (SD) 36.3 h] v. 7.5 h [SD 1.7 h], p < 0.001). The average cost was significantly higher for the inpatient cohort than the outpatient cohort ($4137 [SD $2285] v. $1834 [SD $421], p < 0.001). There were more unimalleolar ankle fractures in the outpatient group than in the inpatient group (42 [59.2%] v. 41 [32.8%], p < 0.001). Outpatients waited longer for surgery than inpatients (9.6 d [SD 5.6 d] v. 2.0 d [SD 3.3 d], p < 0.001). Fourteen patients (11.2%) in the inpatient group presented to the emergency department or were readmitted to hospital within 30 days of discharge, compared to 5 (7.0%) in the outpatient group (p = 0.3). CONCLUSION: In the treatment of isolated closed ankle fractures, outpatient surgery was associated with a significant reduction in length of hospital stay and overall case cost compared to inpatient surgery, with no significant difference in readmission or reoperation rates. In medically appropriate patients, isolated ankle ORIF can be performed safely in an ambulatory setting and is associated with significant cost savings.

Patients' perspectives on the extent of resident participation in the operating room for total hip oxr knee arthroplasty.

INTRODUCTION: Previous work suggests that patients do not understand the extent of resident involvement in their care and are also uncomfortable with resident involvement. METHODS: We recruited 202 English speaking patients with previous or planned total joint arthroplasty of the lower limb for a prospective survey trial. We assessed participant's knowledge of resident level of education and confidence of resident involvement in their surgery as a function of supervision. RESULTS: Participants' mean level of confidence in the consultant surgeon was 4.30 (SD±1.13) on a 5-point Likert scale. Confidence in residents was significantly less, regardless of experience (p < 0.05). 11.1% of participants did not want residents involved in their treatment. 60.6% would like to know more about the education level of the trainee. Less than half of participants correctly identified the education level of residents and fellows. CONCLUSION: Patient confidence in residents performing part or all of their surgery increases with resident experience and supervision. Compared with attending surgeons, patients have significantly less confidence in residents performing their surgery, including while supervised. Most patients do not understand the educational progression of medical trainees and would like to know more about the education level of the resident involved in their care. Further work should explore how we can help patients better understand resident involvement in their surgical care.

CONTEXTE: Des travaux antérieurs suggèrent que les patients ne comprennent pas le degré de participation des stagiaires dans leurs soins et que cette participation les rend mal à l'aise. MÉTHODES: Nous avons recruté 202 patients anglophones qui ont eu ou qui vont avoir une arthroplastie totale du membre inférieur pour un essai prospectif par sondage. Nous avons évalué les connaissances des participants sur le niveau de formation des résidents et leur confiance dans la participation des stagiaires dans l'intervention en fonction de la supervision dont ils font l'objet. RÉSULTATS: Le niveau moyen de confiance des participants dans le chirurgien consultant était de 4,30 (SD±1,13) sur une échelle de Likert à 5 points. Le degré de confiance dans les résidents était bien inférieur, quelle que soit l'expérience du résident (p < 0,05). Parmi les participants, 11,1 % ne voulaient pas que les résidents interviennent dans leur traitement et 60,6 % souhaitaient en savoir plus sur leur niveau de formation. Moins de la moitié des participants ont correctement identifié le niveau de formation des résidents et des fellows. CONCLUSION: La confiance des patients par rapport au fait que les stagiaires effectuent une partie ou la totalité de l'intervention chirurgicale augmente avec l'expérience et la supervision des résidents. La plupart des patients ne comprennent pas les niveaux de formation des stagiaires en médecine et voudraient en savoir plus sur celui du médecin en formation qui intervient dans leurs soins. Des études plus poussées s'imposent sur la manière d'aider les patients à mieux comprendre la participation des stagiaires dans les soins chirurgicaux.

The erosion of ambiguity tolerance and sustainment of perfectionism in undergraduate medical training: results from multiple samplings of a single cohort.

BACKGROUND: Medicine is a field that is simultaneously factual and ambiguous. Medical students have their first exposure to full time clinical practice during clerkship. While studies have examined medical trainees' tolerance of ambiguity (TOA), the extent to which TOA is affected by clinical experiences and its association with perfectionism is unknown. The aim of this study was to evaluate the effect of clerkship experience on TOA and perfectionism in medical students. METHODS: This was a multiple sampling, single cohort study of students in their first year of clinical clerkship which is comprised of 6 core rotations. Consenting students completed an online anonymous survey assessing their tolerance of ambiguity (TOA) and perfectionism in their first (pre) and last (post) 12 weeks of their clinical clerkship year. Tolerance of Ambiguity in Medical Students and Doctors (TAMSAD) and The Big Three perfectionism scale-short form (BTPS-SF) were used to assess TOA and perfectionism respectively. Pre-Post mean comparisons of TOA and perfectionism were assessed via t-tests. RESULTS: From a cohort of 174 clinical clerkship students, 51 students responded to pre-survey, 62 responded to post-survey. Clerkship was associated with a significant decrease in TOA (p < 0.00) with mean pre-TOA scores of 59.57 and post TOA of 43.8. Perfectionism scores were not significantly different over time (p > 0.05). There was a moderate inverse correlation between TOA and perfectionism before clerkship (r = 0.32) that increased slightly after clerkship (r = 0.39). Those preferring primary care specialties had significantly lower rigid and total perfectionism scores in pre-clerkship than those choosing other specialties, but this difference was not found post-clerkship. CONCLUSION: Exposure to clerkship decreased TOA while perfectionism remained stable in medical students. These results were not expected as exposure has been previously shown to increase TOA. The frequency of rotation changes maintaining a cycle of anxiety may be an underlying factor accounting for these results. Overall these results require further investigation to better characterize the role of clinical exposure on TOA.

Three Femoral Stem Designs Without Corrosion: A Review of 2095 Stems.

INTRODUCTION: Corrosion at the head-neck interface of modular components in total hip arthroplasty (THA) has been reported as a cause of failure of modern total hip replacement implants. While this method of failure has been well described, it remains poorly understood. The purpose of this study is to review the three most commonly used uncemented femoral stems at our institution over the last fifteen years and to correlate any established risk factors with rates of revision, particularly corrosion. METHODS: We reviewed 2095 patients from March 2000 to September 2015 who underwent total hip arthroplasty with one of three uncemented femoral stem designs. All stems were made of a Ti6Al4V alloy with a 12/14 taper design. We included only those stems coupled with a CoCr head and a highly crosslinked polyethylene liner. We evaluated age, gender, body mass index (BMI), femoral head size, head length, neck angle and offset and correlated these to the incidence of all cause revision, as well as revision excluding infection. RESULTS: There were no recognized corrosion-related revisions identified. There was no association between age, BMI, gender, head length, neck angle and offset to all cause revision or revision with infection excluded (p>0.05). Femoral head size less than 32mm was associated with higher all cause revision rates (OR 4.60 (95% CI 1.8, 11.8)) and when excluding infection as a reason for revision (OR 4.94 (95% CI 1.7, 14.41)). CONCLUSION: Over the last fifteen years, we have not identified any cases of corrosion with the three most commonly used femoral stems used at out institution. While we acknowledge that no femoral stem is immune to corrosion, certain femoral stem designs may be uniquely resistant to this mode of failure. LEVEL OF EVIDENCE: III.

Fundamental trends within falling match rates: Insights from the past decade of Canadian residency matching data.

BACKGROUND: The number of unmatched Canadian Medical Graduates (CMGs) has risen dramatically over the last decade. To identify long-term solutions to this problem, an understanding of the factors contributing to these rising unmatched rates is critical. METHODS: Using match and electives data from 2009-2019, we employed machine learning algorithms to identify three clusters of disciplines with distinct trends in match and electives behaviours. We assessed the relationships between unmatched rates, competitiveness, rates of parallel planning, and program selection practices at a discipline level. RESULTS: Across Canada, growth in CMGs has outpaced growth in residency seats, narrowing the seat-to-applicant ratio. Yet not all disciplines have been affected equally: a subset of surgical disciplines experienced a consistent decline in residency seats over time. Applicants to these disciplines are also at disproportionate risk of becoming unmatched, and this is associated with lower rates of parallel planning as quantified through clinical electives and match applications. This, in turn, is associated with the program selection practices of these disciplines. CONCLUSION: Long-term solutions to the unmatched CMG crisis require more nuance than indiscriminately increasing residency seats and should consider cluster specific match ratios as well as regulations around clinical electives and program selection practices.

CONTEXTE: Le nombre de diplômés canadiens en médecine (DCM) non jumelés a augmenté considérablement au cours des dix dernières années. Afin de trouver des solutions à long terme à ce problème, il est primordial de comprendre les facteurs qui contribuent à cette hausse. MÉTHODES: À l'aide des données de jumelages et de stages à option de 2009 à 2019, nous nous sommes servis d'algorithmes d'apprentissage automatique afin d'identifier trois groupes de disciplines démontrant des tendances distinctes en ce qui a trait aux jumelages et au choix des stages à option. Nous avons évalué les relations entre le taux de diplômés non jumelés, la compétitivité, les taux de planification parallèle et les pratiques de sélection des programmes pour chacune de ses disciplines. RÉSULTATS: Partout au Canada, la croissance des DCM a dépassé la croissance du nombre de postes de résidence, réduisant ainsi le ratio postes-candidats. Cependant, les disciplines n'ont pas toutes été touchées de la même manière: un sous-ensemble de disciplines en chirurgie a connu, au fil du temps, un déclin continu en ce qui a trait aux postes de résidence offerts. Les candidats de ces disciplines sont aussi exposés à un risque démesuré de ne pas être jumelés et ceci est lié à la réduction des taux de planification parallèle tels que quantifiés par les stages à option cliniques et les demandes de jumelage. Ceci est, par conséquent, lié aux pratiques de sélection des programmes de ces disciplines. CONCLUSION: Les solutions à long terme de la crise touchant les DCM non jumelés requièrent plus de subtilités que le simple fait d'augmenter sans distinction le nombre de postes de résidence. Elles devraient également prendre en compte les ratios de jumelage propres aux groupes de disciplines ainsi que les règlements concernant les stages à option et les pratiques de sélection des programmes.

Comparison of Contact Kinematics in Posterior-Stabilized and Cruciate-Retaining Total Knee Arthroplasty at Long-Term Follow-Up.

BACKGROUND: There is controversy regarding the superiority of posterior-stabilizing (PS) total knee arthroplasty (TKA) and cruciate-retaining (CR) TKA. Substantial work has made comparisons between PS and CR TKA at follow-ups of less than 5 years. It was the goal of the present study to compare the kinematics at greater than 5 years postoperatively between CR and PS TKA, with a secondary goal of comparing patient function. METHODS: A total of 42 knees were investigated, with equal representation in the PS and CR TKA groups. Patients underwent radiostereometric analysis imaging at 0°, 20°, 40°, 60° 80°, and 100° of flexion. Contact position, magnitude of excursion, and condylar separation on each condyle were measured. A Timed-Up-and-Go functional test was also performed by patients, with the total test time being measured. Preoperative and postoperative clinical outcome scores were also collected. RESULTS: There were differences in contact position on both the medial and lateral condyles at multiple angles of flexion (P < .05). There was no difference (P = .89) in medial excursion; however, PS TKA had greater lateral excursion than CR TKA (P < .01). No difference (P > .99) was found in frequency of condylar separation. PS TKA was associated with faster (P = .03) total Timed-Up-and-Go test times. There were no differences in clinical outcome scores between the groups preoperatively or postoperatively. CONCLUSION: We found kinematic and functional differences that favor PS TKA. Our results suggest posterior cruciate ligament insufficiency in CR TKA, indicating that perhaps the cam/post systems in PS TKA better maintain knee kinematics and function long term.