ABSTRACT
PURPOSE: Medical institutions in India have employed different periodic formative assessment (FA) methods with variable impact. The formative evaluation must incorporate feedback to improve learning. Formative assessment has helped inexperienced students apprehend their weaknesses, make choices, prepare for summative exams, and allow teachers to identify regions wherein students may also need aid. This study attempts to quantify the impact of the weekly, monthly, and semester formative assessments and view it retrospectively through the lens of complex adaptive systems and social sustainability principles. METHODS: We used a post-exam survey and statistical analysis to compare the students' performance between the timely periodic formative assessments in a competency-based curriculum. The cohort consisted of 2018 (semester), 2019 (weekly), and 2020 (monthly) first-year medical students. Cronbach alpha, spearman's correlation coefficient, descriptive statistics, and repeated measure analysis of variance were used to explore the reliability and relationship between formative assessment and summative scores of each cohort and find any significant difference. The authors also analyzed the accordance between the FA exam performance and students' perceptions, deduced broad themes, and discussed the appropriateness and feasibility of students' suggestions for changes. RESULTS: A significant correlation was found only between the weekly formative assessment and summative scores (r=0.74, p=0.01). The analysis of variance established significant differences between all summative scores of respective periodic formative assessments. The weekly formative assessment showed the highest mean summative examination scores. This study helped comprehend preclinical students' apprehension after the intervention of periodic formative assessments. The students found this intervention helpful in driving and detecting gaps in learning but preferred focused feedback, clinically oriented practices, and countered mental health issues. CONCLUSION: The continuous periodic formative assessment model had a valid educational impact but was not sustainable according to social sustainability principles. A complex adaptive framework can be utilized to make it sustainable.
ABSTRACT
The liver is a very dynamic organ. Still, the gross anomalies of the liver are sparse. The accessory lobe of the liver is a rare anatomical variation with a prevalence of less than 1%. We present a case of an accessory lobe and two accessory grooves of the liver in a cadaver. The accessory lobe was an isolated anomaly, sessile in presentation, and attached to normal liver parenchyma. Although accessory lobes are rare, knowledge about them will reiterate to surgeons and radiologists to be mindful of them and to avoid misdiagnosis.
ABSTRACT
Background Morphometric measurement of the sacrum is crucial due to its active involvement in the instrumentation for lumbar pathologies. From screw placement to stabilization procedures for the spine, the sacrum remains a site of surgical importance. Thus, the purpose of this study was to generate baseline data by comparing two techniques, namely, osteometry in dry bones and CT scan imaging. Methodology In this study, 30 dry, fully ossified, disarticulated sacra were studied for osteometry, and 60 CT scan reports of patients with lumbar pathologies were retrospectively evaluated. In both cases, similar parameters were measured. The mean values were determined, the two methods were compared, and statistical analysis was performed. Results Among the 30 dry bone samples, 33.3% (10 out of 30) were males, while 55% of the CT scan group were males. Correlation between the different measurements in the CT scan group suggested that the vertebral body maximum width of S1 had a significant positive correlation with the vertebral body height of S1, sacral height, sacral breadth, transverse diameter of auricular surface, and vertical diameter of auricular surface. Statistically significant higher values (P < 0.001) were observed for the vertebral body mid diameter of S1, vertebral body height of S1, pedicle width, and pedicle depth measurements in the dry bone group compared to the CT scan group. Conclusions The efficiency of anaesthetic blocks can be increased if the parameters are evaluated beforehand. Moreover, sexual dimorphism of the bone can account for the varied results of the parameters, indicating the necessity to conduct gender-based studies in a wider population.
ABSTRACT
The present study attempted to validate the "Burcev freehand method" based on anatomical observations in Indian cadavers. The study was conducted on 32 cervical pedicle screws (CPSs) that were placed in four cadavers by the authors according to the "freehand technique," described by Burcev et al, without the aid of fluoroscopy and the trajectory verified by computed tomography scans. The screws were designated as satisfactory, permissible, or unacceptable. Descriptive variables were represented in number and percentages, continuous variables were represented as mean ± standard deviation (SD). Of the 32 CPSs placed, 24 (75%) exhibited a satisfactory position, 1 (3%) exhibited a permissible position, and 7 (22%) exhibited an unacceptable position. Of the seven CPSs in the unacceptable group, four exhibited a lateral breach and three exhibited a medial breach, whereas the CPS in the permissible group exhibited a medial breach. The overall angle with contralateral lamina in the horizontal plane in terms of mean ± SD was 175.43 ± 2.82, 169.49, and 169.65 ± 6.46 degrees in the satisfactory, permissible, and unacceptable groups, respectively. In the sagittal plane, the screws exhibited an angle of 88.15 ± 3.56 degrees. No breach was observed superiorly or inferiorly. The "Burcev technique" is replicable with similar results in cadavers. Further studies must be conducted in a clinical setting to ensure its safety.
