bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrating Experiential Learning in Introduction to Sociology: Cultivating the Sociological Imagination in Premedicine Students
Authors: Lotspeich-Yadao Michael C. , Trevino-Boissel Kimberly , Hoekstra Cara
Published: August 2024

This study investigates the impact of experiential learning in an Introduction to Sociology course, particularly for students interested in health careers. The course integrates a significant sociological research project with community health partners, involving 15 hours of data collection through phone and door-to-door interviews. The research addresses two key questions: the role of applied research in developing a comprehensive understanding of social health aspects among premedicine students and the effect of incorporating an applied research project in an introductory sociology course. Findings indicate that students gained a heightened awareness of local health issues and an increased interest in diverse perspectives on health outcomes influenced by structural factors. Furthermore, exposure to health care inequalities motivated students to learn more about health disparities. The study concludes that experiential learning deepens the understanding of sociological concepts, significantly enriching the knowledge of social determinants of health among future health professionals.
Learning morphology in Spanish-speaking children: study of the morpheme-meaning association / Aprendizaje de la morfología en infantes hispanohablantes: estudio de la asociación morfema-significado
Authors: Jasso Tania , Galicia Nereida R. , Alva Elda A.
Published: August 2024

Learning the meaning of words entails also understanding the meaning of the morphemes in them. With the goal of providing evidence on the learning of new morphemes at very young ages, for this study we designed a preferential attention task with the participation of children aged 18, 24 and 30 months. During the training, they were presented with objects that had a wavy or straight cutout, with each kind of cutout associated with a pseudo-morpheme (- sa or - go) in a set of pseudo-words. In each phase of the trial, both kinds of cutouts were presented in new objects as the children listened to a new pseudo-word with one of the pseudo-morphemes in which they had been trained. The results indicated that the children were able to associate the pseudo-morpheme - go with its referent, especially at 18 and 30 months old. The possible effects of whether or not the morphemes in the task are regular are discussed; however, evidence was found in favour of the children having the ability to identify a new morpheme and associate it with its meaning, a fundamental skill in learning morphology.
The City in Song: Using Popular Music in Urban Studies Pedagogy
Authors: Santo Charles A. , Nickle Julia I.
Published: August 2024

Urban studies disciplines could benefit from embracing popular music as a pedagogical tool—an accessible medium that often provides ethnographic insight into urban life. This paper reflects on the experience of teaching a course called “The City in Song,” and considers the outcomes and lessons learned from employing popular music to engage college students and influence their understanding of urban issues. The seminar course used a diverse community of songs, in conversation with one another, to explore how cities change, the policies and factors that cause changes, and how different groups can experience the same city differently.
The Making of Everyday Space of Publicness: Insights from a Mall in Beijing
Authors: Xu Meng
Published: August 2024

The rise of malls in China raises questions about their roles as public spaces in Chinese cities. This article proposes the concept of everyday space of publicness to trace contextually sensitive ways that urban inhabitants make the mall a space for public life. The making of everyday space of publicness is evidenced using data from ethnographic fieldwork conducted in an inner-city open-air mall in Beijing. I demonstrate how the mall becomes an everyday space of publicness across three aspects: spontaneous social activities, cooperative practices of regulation, and users’ interpretations of their mall experiences. Centering on mall users’ everyday experiences and interpretations, these accounts offer nuanced insights into the dynamic relationship between urban spaces and publicness, and contribute to understanding the lived dimension of Chinese urbanism.
Kinder Justice: Communicating Legitimacy to Children in Sentencing Courts
Authors: Hollingsworth Kathryn
Published: August 2024

This article examines the impact and significance to child defendants in England and Wales of sentence communication. Drawing on a qualitative study with justice-experienced children, I suggest that how sentences are delivered matters deeply to children's perceptions of legitimacy in three ways that coalesce around the concept I call ‘kinder justice’. First, legitimacy is enhanced by approaches that communicate care (invoking kinder as a verb); second, children want recognition of their status as a child (employing kinder as a noun); and third, children value sentencing remarks that reflect their family's (kin's) version of the child's self, not the ‘proper criminal’ they feel portrayed as in court. Together, drawing on Honneth's theory of recognition, I argue these three forms of kinder justice highlight the importance of recognitional justice during the sentencing process.
JMI Revisionist History of Workplace Deviance
Authors: Robinson Sandra L. , Bennett Rebecca J.
Published: August 2024

In the mid-90s, we embarked on establishing the domain of Workplace Deviance. Though we were fortunate to meet our intended goals and have the impact we had hoped for, we have often thought about what we might have done differently. In this essay, we outline some of the things we wish we knew then that we know now. As we will describe, we perhaps should have chosen a different construct name, taken a theoretical rather than data driven approach to our typology, and developed a reflective rather than formative scale. We hope this essay based on our hindsight may be of value to future scholars seeking to establish new constructs in our field.
Malivhu: A Comprehensive Bioinformatics Resource for Filtering SARS and MERS Virus Proteins by Their Classification, Family and Species, and Prediction of Their Interactions Against Human Proteins
Authors: Guevara-Barrientos David , Kaundal Rakesh
Published: August 2024

COVID 19 pandemic is still ongoing, having taken more than 6 million human lives with it, and it seems that the world will have to learn how to live with the virus around. In consequence, there is a need to develop different treatments against it, not only with vaccines, but also new medicines. To do this, human-virus protein-protein interactions (PPIs) play a key part in drug-target discovery, but finding them experimentally can be either costly or sometimes unreliable. Therefore, computational methods arose as a powerful alternative to predict these interactions, reducing costs and helping researchers confirm only certain interactions instead of trying all possible combinations in the laboratory. Malivhu is a tool that predicts human-virus PPIs through a 4-phase process using machine learning models, where phase 1 filters ssRNA(+) class virus proteins, phase 2 filters Coronaviridae family proteins and phase 3 filters severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) species proteins, and phase 4 predicts human-SARS-CoV/SARS-CoV-2/MERS protein-protein interactions. The performance of the models was measured with Matthews correlation coefficient, F1-score, specificity, sensitivity, and accuracy scores, getting accuracies of 99.07%, 99.83%, and 100% for the first 3 phases, respectively, and 94.24% for human-SARS-CoV PPI, 94.50% for human-SARS-CoV-2 PPI, and 95.45% for human-MERS PPI on independent testing. All the prediction models developed for each of the 4 phases were implemented as web server which is freely available at https://kaabil.net/malivhu/ .
Peritonitis Secondary to Ruptured Hydatid Liver Cyst in a Young Postpartum Woman: A Rare Case Report
Authors: Ola Messaoud , Kenza Horache , Manal Jidal , Amine Cherraqi , Omar El Aoufir , Fatima Zahra Laamrani , Laila Jroundi
Published: August 2024

Hydatid disease, caused primarily by Echinococcus granulosus, is prevalent in regions where livestock farming is common. Although typically considered benign, ruptured hydatid cysts into the abdominal cavity present a rare but severe complication requiring urgent surgical intervention. We hydatid liver cyst, emphasizing the unprecedented nature of this occurrence, as it has never been reported in the literature before. The case underscores the role of computed tomography (CT) imaging in diagnosis and multidisciplinary management involving emergency physicians, radiologists, anesthetists, and surgeons. Key points highlighted include the rarity of postpartum hydatid cyst rupture, the diagnostic utility of CT scans, and the necessity of immediate surgical intervention. Surgical strategies include conservative techniques and intraoperative lavage with hypertonic saline solution to prevent recurrence. Postoperative albendazole therapy and regular follow-up aid in preventing recurrence and early detection of complications. This case underscores the importance of suspecting ruptured hydatid cysts in postpartum women with underlying hepatic hydatid cyst and features of peritonitis, necessitating prompt recognition and management of complications in hydatid disease
Creating an automated tool for a consistent and repeatable evaluation of disability progression in clinical studies for multiple sclerosis
Authors: Montobbio Noemi , Carmisciano Luca , Signori Alessio , Ponzano Marta , Schiavetti Irene , Bovis Francesca , Sormani Maria Pia
Published: August 2024

Background:

The lack of standardized disability progression evaluation in multiple sclerosis (MS) hinders reproducibility of clinical study results, due to heterogeneous and poorly reported criteria.

Objective:

To demonstrate the impact of using different parameters when evaluating MS progression, and to introduce an automated tool for reproducible outcome computation.

Methods:

Re-analyzing BRAVO clinical trial data (NCT00605215), we examined the fluctuations in computed treatment effect on confirmed disability progression (CDP) and progression independent of relapse activity (PIRA) when varying different parameters. These analyses were conducted using the msprog package for R, which we developed as a tool for CDP assessment from longitudinal data, given a set of criteria that can be specified by the user.

Results:

The BRAVO study reported a hazard ratio (HR) of 0.69 (95% confidence interval (CI): 0.46–1.02) for CDP. Using the different parameter configurations, the resulting treatment effect on CDP varied considerably, with HRs ranging from 0.59 (95% CI: 0.41–0.86) to 0.72 (95% CI: 0.48–1.07). The treatment effect on PIRA varied from an HR = 0.62 (95% CI: 0.41–0.93) to an HR = 0.65 (95% CI: 0.40–1.04).

Conclusions:

The adoption of an open-access tool validated by the research community, with clear parameter specification and standardized output, could greatly reduce heterogeneity in CDP estimation and promote repeatability of study results.
The Impact of Blockchain Technology Applications on Enterprise Innovation in the Digital Economy Era: An Empirical Test Based on a PSM-DID Model
Authors: Peiyao Qiu , Runze Zhang
Published: August 2024

In the era of digital economy, enterprises need to maximize the acquisition and absorption of innovation knowledge with the help of digital technologies. And blockchain technology, as an emerging digital technology with features such as tamper-evident, distributed storage and accounting, has the potential to help enterprises solve the trust risk in a multi-entity environment, and help them acquire and absorb innovative knowledge to gain innovation advantages. Therefore, this paper deeply explores the impact of blockchain technology applications on enterprise innovation and analyzes the mediating effect of knowledge acquisition and absorptive capacity. Based on the data of Chinese A-share listed companies from 2013 to 2020, this paper conducts an empirical test by applying the PSM-DID method. The results of this study find that blockchain technology applications positively promote enterprise innovation. In terms of impact mechanism, this paper illustrates that blockchain technology applications promote enterprise innovation by improving knowledge acquisition and absorptive capacity. Heterogeneity analysis shows that blockchain technology applications have a more significant promoting effect on innovation in private enterprises. This study expands the theoretical research on the relationship between blockchain technology applications and enterprise innovation, which is of certain significance to the development of enterprise digital innovation under the background of digital economy.
Paper 34: Supratubercle Anterior Closing Wedge Osteotomy: No Change in Patellar Height, Compared to Decreased Height for Medial Opening Wedge Proximal Tibial Osteotomy, and Significant Decreases in Anterior Tibial Translation at Six Months Postoperatively
Authors: Tollefson Luke , Kennedy Nicholas , Banovetz Mark , Homan Morgan , Engebretsen Lars , Moatshe Gilbert , Wulf Corey , Larson Christopher , LaPrade Robert
Published: August 2024

Objectives:

The purpose of this study was to radiographically assess changes in 1) patellar height, 2) anterior tibial translation (ATT), and 3) posterior tibial slope following supratubercle ACW-PTO and to compare changes in patellar height to a cohort of medial opening proximal tibial osteotomies (MOW-PTO).

Methods:

Patients who underwent supratubercle ACW-PTO by a single surgeon from July 2019-February 2023 were included. Institutional Review Board approval was obtained for this study. Radiographic assessment at four time points (preoperative, postoperative day 1, 3 months and 6 months) of patellar height (via the Caton Dechamps and Insall Salvati ratios), posterior tibial slope, and anterior tibial translation of the lateral tibial plateau relative to the lateral femoral condyle was completed. A comparison cohort of patients undergoing MOW-PTO was included for comparison of patellar height.

Results:

Patellar height averages ( n=16) after ACW-PTO using the Caton-Deschamps ratio (Figure 1) demonstrated a significant increase in patellar height on postoperative day 1 ( p=0.004), but were not significantly different at 3 and 6 months postoperatively (Table 2). Conversely, averages of patellar height after MOW-PTO ( n=28) demonstrated no difference on postoperative day 1, but then was significantly decreased by 6 months postoperatively ( p=0.005) (Table 1). There was a significant difference between the closing and opening-wedge cohorts when comparing the difference in patellar height using the CD ratio between preoperative and 6 months ( p=0.011). Anterior tibial translation in the ACW-PTO cohort was significantly decreased by an average of 9.0 mm from preoperative to postoperative values ( p<<0.001) (Figure 2). Posterior tibial slope in the ACW-PTO cohort was significantly decreased by an average of 11.8° from preoperative to postoperative values ( p<<0.001).

Conclusions:

Supratubercle ACW-PTO performed for ACL failure in the setting of increased tibial slope did not induce significant changes in patellar height postoperatively. Furthermore, following ACW-PTO there was a significant decrease in anterior tibial translation and posterior tibial slope.
Paper 42: No Difference in Acromial Morphology in Primary versus Revision Posterior Shoulder Instability Patients
Authors: Keeling Laura , Arner Justin , Spaeder David , Bradley James
Published: August 2024

Objectives:

To evaluate differences in acromial morphology between patients undergoing primary and revision arthroscopic stabilization for posterior shoulder instability.

Methods:

A series of patients who underwent either primary or revision arthroscopic stabilization for posterior shoulder instability between 2001 and 2022 were identified. Primary and revision patients were matched based on age, gender, and sport (contact/throwing). Patient demographics were collected, and acromial morphology was evaluated in both groups using previously described MRI parameters including posterior acromial tilt (PAT), anterior acromial coverage (AAC), posterior acromial coverage (PAC), and posterior acromial height (PAH). Continuous variables were compared between groups using a two-tailed Student’s t-test.

Results:

Seventeen patients who underwent revision posterior shoulder stabilization during the study period were identified and matched to 17 patients who underwent primary posterior shoulder stabilization. Mean ages of the primary and revision patients at the time of initial surgery were 18.1 (±3.5; 13-27) and 18.6 (±4.3; 12-29), respectively (p = 0.66). Males comprised 35% of each group. Mean PAT in the primary and revision groups was 50.76° (±9.51) and 50.29° (± 7.47) (p = 0.88), while mean PAH was 13.34 mm (±6.50) and 15.25 mm (±4.75) (p = 0.35), respectively. Mean AAC in the primary and revision groups was 8.18° (±7.73) and 10.35° (±9.50) (p = 0.48), while mean PAC was 70.59° (±9.26) and 65.94° (±6.78) (p = 0.12), respectively.

Conclusions:

Measurements of acromial morphology including posterior height, tilt, and coverage were not significantly different in a case matched cohort of patients undergoing primary vs. revision arthroscopic posterior shoulder capsulolabral repair. Prior studies have demonstrated that a “higher and flatter” acromion may predispose patients to posterior shoulder instability; however, this does not appear to affect the risk of failure of arthroscopic posterior capsulolabral repair.
Poster 107: Arthroscopic Bankart Versus Open Latarjet: Short-To-Mid-Term Outcomes Of Recurrence And Complications in Patients With Recurrent Anterior Shoulder Dislocation
Authors: Ghayyad Kassem , Akbarzadeh Meysam , Mirghaderi Seyed Peyman , Salimi Maryam , Ebrahimzadeh Mohammad H. , Kachooei Amir
Published: August 2024

Objectives:

This retrospective comparative study aimed to compare the short to mid-term outcomes, including recurrence, complications, and patient-reported outcome measures (PROMs) of arthroscopic Bankart and open Latarjet procedures in patients with recurrent anterior shoulder instability.

Methods:

All patients with recurrent shoulder instability who underwent either arthroscopic Bankart or open Latarjet procedures between 2008 and 2020 with at least 1-year of follow-up were included in the study. Their surgery results and patient-reported outcome measures were assessed using the Oxford Shoulder Score (OSS) and Shoulder Pain and Disability Index (SPADI).

Results:

One-hundred thirty-three patients were analyzed in 2 groups: Latarjet (n = 67) and Bankart (n = 66). Before surgery, the 2 groups of patients were similar regarding surgery side, education level, occupation difficulty level, and smoking (P > 0.05). However, Latarjet patients were younger (32 ± 9 vs. 35 ± 9, P=0.04), had a higher proportion of male patients (95.5% vs. 81.8%, P=0.01), and had a significantly shorter follow-up period (3.2 ± 2.6 vs. 6.4 ± 3.0 years, P<0.001) than the Bankart group. There was no significant difference between the Latarjet and Bankart groups regarding the follow-up OSS score (37 ± 6 vs. 36 ± 9; P=0.94) and SPADI score (22 ± 14 and 24 ± 20, P=0.80). There was only 1 case (1.5%) of dislocation in the Latarjet group, but none in the Bankart group (P=1.0). Subluxation was observed in 5 patients (7.5%) of the Latarjet group and in 3 patients (4.5%) of the Bankart group (P=0.4). In the Bankart group, male patients had significantly superior OSS and SPADI scores compared with female patients, and follow-up time was significantly correlated with better OSS score (r=0.28) and better SPADI score (r=-0.28) (P<0.05). Latarjet group results showed that younger age was significantly associated with better OSS (r=-0.26) and better SPADI scores (r=0.25 (P<0.05).

Conclusions:

Our findings confirm that both Bankart and Latarjet are reliable techniques in short- to mid-term follow-up based on the bone loss cut off of 15%. Patients can be consulted regarding early arthroscopic intervention soon after the shoulder dislocation becomes recurrent in contrast to waiting too long to require a more extensive Latarjet procedure, albeit with comparable outcomes.
Poster 168: Early Surgery Provides Superior Cost-Effectiveness When Compared to Nonoperative Management for Partial Tears of the Ulnar Collateral Ligament in Baseball Pitchers
Authors: Oeding Jacob , Jurgensmeier Kevin , Boos Alexander , Krych Aaron , Okoroha Kelechi , Camp Christopher
Published: August 2024

Objectives:

Nonoperative management vs. early reconstruction for partial tears of the medial ulnar collateral ligament (MUCL) remains controversial, with the most common treatment options for partial tears consisting of rest, rehab, platelet rich plasma (PRP), and/or surgical intervention. However, whether the improved outcomes reported for treatments such as MUCL reconstruction (UCLR) or nonoperative management with a series of PRP injections justifies their increased upfront costs remains unknown. Thus, the purpose of this study was to compare the cost-effectiveness of an initial trial of physical therapy alone, an initial trial of physical therapy plus a series of PRP injections, and early UCLR to determine the preferred cost-effective treatment strategy for baseball pitchers with partial tears of the MUCL.

Methods:

A Markov Chain Monte Carlo probabilistic model was developed to evaluate the outcomes and costs of 1,000 simulated pitchers undergoing nonoperative management with and without PRP vs. early UCLR for partial MUCL tears. Utility values, RTP rates, and transition probabilities were derived from the published literature. Costs were determined based on the typical patient undergoing each treatment strategy at our institution. Outcome measures included costs, acquired playing-years (PYs), and the incremental cost-effectiveness ratio (ICER).

Results:

Mean total costs resulting from nonoperative management without PRP, nonoperative management with PRP, and early UCLR were $22,520, $24,800, and $43,992, respectively. On average, early UCLR produced an additional 4.0 PYs over the 10-year time horizon relative to nonoperative management, resulting in an ICER of $5,395/PY, which falls well below the $50,000 willingness-to-pay threshold (WTP). Overall, early UCLR was determined the preferred cost-effective strategy in 77.5% of pitchers included in the microsimulation model, with nonoperative management with PRP determined the preferred strategy in 15% of pitchers and nonoperative management alone in 7.5% of pitchers.

Conclusions:

Based on Monte Carlo microsimulation and probabilistic sensitivity analysis, early UCLR was demonstrated to be more cost-effective than an initial trial of nonoperative management for partial tears of the MUCL for the majority of high-level baseball pitchers. It is important to note that this model does not consider the unique experiences, goals, situations, career trajectory, and pitching horizons of individual patients, and thus a shared decision-making discussion should be conducted regarding optimal initial treatment for partial MUCL tears. This is particularly true as many athletes can successfully be treated non-operatively, which generally results in a quicker return to play when successful compared to surgery.
Poster 186: The Utility of Preoperative Hip Injection Response as a Predictor of 2-Year Postoperative Outcomes Following Hip Arthroscopy for Femoroacetabular Impingement
Authors: Pepic Lejla , Markes Alexander , Sampson Hayden , Soriano Kylen , Wong Stephanie , Zhang Alan
Published: August 2024

Objectives:

The objective of this study is to determine whether response to preoperative lidocaine or corticosteroid intra-articular hip injections can predict 2-year postoperative outcomes in patients undergoing arthroscopic management of femoroacetabular impingement syndrome (FAIS).

Methods:

We performed a retrospective analysis of a prospective cohort consisting of patients who received a preoperative corticosteroid or lidocaine intra-articular hip injection and subsequently underwent hip arthroscopy for treatment of FAIS between 2014-2020. Patients were classified by injection received and labeled as “responders” if the injection provided pain relief. Lidocaine and corticosteroid cohorts were matched using 1:1 matching for age, BMI, and sex. Patient reported outcome (PRO) measurements including the Hip Disability and Osteoarthritis Outcome Score (HOOS), 12-item Short-Form Survey mental (SF-12 MCS) and physical component survey (SF-12 PCS), and visual analog scale (VAS) Pain were completed both preoperatively and 2-years postoperatively. Mean differences in preoperative and 2-year postoperative scores were calculated as was the percentage of patients achieving a mean clinically important difference (MCID). Floor and ceiling effects of PROs were also evaluated with 15% of patients achieving a maximum or minimum survey score deemed as significant.

Results:

Our cohort included 110 patients (55 lidocaine, 55 corticosteroid) with no significant differences in preoperative demographic variables (Table 1). Both cohorts demonstrated significant 2-year postoperative score improvements across all PROs, except SF-12 MCS, which was unchanged. Lidocaine non-responders demonstrated greater 2-year mean difference in all PROs, except for SF-12 MCS, when compared to lidocaine responders (Table 2). Lidocaine non-responders also achieved MCID at higher rates than responders in both HOOS Pain & VAS Pain (Table 3). There was no difference in percentage of patients achieving MCID or mean difference in PROs between corticosteroid responders and non-responders. Ceiling and floor effects were seen in 2-year postoperative PROs of a combined lidocaine & corticosteroid responder cohort. [Ceiling: HOOS ADL (34.6%) HOOS Pain (21.0%) HOOS Sport (28.4%); Floor: VAS Pain (34.6%)]

Conclusions:

Preoperative intra-articular hip injection response did not predict 2-year postoperative outcomes after hip arthroscopy for FAIS. Results from this study suggest that preoperative injection response should not be used in isolation to predict outcomes after arthroscopic treatment of FAIS.
Poster 227: Prospective Clinical and Radiological Follow-Up Beyond 10 Years in Patients Undergoing Matrix-Induced Autologous Chondrocyte Implantation (MACI) in the Patellofemoral Joint
Authors: Ebert Jay , Klinken Sven , Wood David , Janes Greg
Published: August 2024

Objectives:

Matrix-induced autologous chondrocyte implantation (MACI) has demonstrated encouraging outcomes in the treatment of knee cartilage defects, though limited research is available on its longer-term (≥10 years) sustainability in the patellofemoral joint. This prospective study sought to present and report the clinical and radiological outcome beyond 10 years in a prospectively recruited cohort of patients undergoing MACI in the patellofemoral knee joint.

Methods:

The current study included 82 patients (patella = 41, trochlea = 41) assessed at ≥10 years following patellofemoral MACI. Patients were assessed preoperatively and at 2, 5 and ≥10 years via the Knee Injury and Osteoarthritis Outcome score (KOOS), the 36-item Short Form Health Survey (SF-36), the frequency (VAS-F) and severity (VAS-S) of knee pain, patient satisfaction, active knee range of motion (ROM) and peak isokinetic knee extensor and flexor torque. High-resolution magnetic resonance imaging (MRI) assessed pertinent measures of graft outcome as per the magnetic resonance observation of cartilage repair tissue (MOCART) system, as well as an overall MRI composite score. Results were analyzed according to the graft location (patella or trochlea).

Results:

While no statistically significant differences (p>0.05) were observed between those undergoing patella or trochlea MACI across the majority of demographic (age, weight, BMI), injury history (duration of symptoms) or surgery (defect size, prior procedures, requirement for concomitant patellofemoral re-alignment) variables, a significantly higher (p=0.013) proportion of males was seen in the trochlea MACI group. All patient-reported outcome measures significantly improved (p<0.05), with no differences observed between those undergoing patella or trochlea MACI. No group differences (p>0.05) were observed in active knee flexion or extension ROM between groups, though those undergoing patella (versus trochlea) MACI demonstrated significantly greater postoperative quadriceps (Figure 1) and hamstring strength limb symmetry indices. No statistically significant decline (p>0.05) was seen from 2 years to final follow-up in any MRI-based measure, with no MRI-based differences observed between patella (Figure 2) and trochlea (Figure 3) grafts. In the cohort assessed at ≥10 years post-surgery, 4 patients (patella n=2, trochlea n=2) demonstrated graft failure on MRI, though a further 3 patients (all trochlea) were omitted from ≥10-year review that had already progressed toward total knee arthroplasty.

Conclusions:

Good clinical scores, high levels of patient satisfaction and adequate graft survivorship were observed at ≥10 years following MACI to the patella or trochlea.
Poster 279: The Influence of Tibial Length on Posterior Tibial Slope Measurement: How Much Tibia Do We Need?
Authors: Garra Sharif , Li Zachary I. , Triana Jairo , Savage-Elliott Ian , Kanakamedala Ajay , Campbell Kirk A. , Alaia Michael J. , Strauss Eric J. , Jazrawi Laith M.
Published: August 2024

Objectives:

The purpose of this study was to determine whether significant differences exist when comparing posterior tibial slope (PTS) measurements using increasing lengths of the tibia to determine the anatomical axis.

Methods:

Patients with full-length weightbearing tibial radiographs were retrospectively identified from 2014-2022 at a single institution. Patients were excluded if there was any previous history of lower extremity fracture or osteotomy. The anatomical axis of the tibia was determined using the full length of tibial radiographs, and the “reference PTS” was measured using this axis. Using the same radiograph, the PTS was measured using four different anatomical axes at standardized tibial lengths. While the center of the proximal circle remained constant at 5-cm below the tibial plateau, the center of the distal circle was drawn at four points: a) overlapping circles; b) 10-cm distal to the tibial plateau; c) 15-cm distal to the tibial plateau; d) half the length of the tibia, measured from the tibial plateau to the tibial plafond. Bivariate correlation and frequency distribution analysis (measurements >2-degrees from reference PTS) were performed between the reference PTS and PTS measured at each of the four other lengths.

Results:

A total of 154 patients (39.8±17.4 years old, 44.2% male) were included in the final analysis. Measurements at each of the four tibial lengths were all significantly different from the reference PTS (p<0.001). The correlation strength improved with increasing tibial length (overlapping: R=0.681, 10-cm: R=0.821, 15-cm: R=0.937, and half-tibia: R=0.963). The number of PTS measurements >2-degree absolute difference from the reference PTS decreased with increasing tibial length (overlapping: 40.3%, 10-cm: 24.0%, 15-cm: 26.0%, and half-tibia: 18.8%).

Conclusions:

Assessment of PTS is dependent on the length of the tibia utilized to obtain the anatomical axis. Accuracy and precision of PTS measurements improved with increasing length of tibia used to determine the anatomical axis.
Poster 344: The New "Terrible Triad": Anterior Cruciate Ligament Reconstruction With Concurrent Meniscal Lateral Root and Medial Ramp Repairs
Authors: Shoemaker Evan , Tollefson Luke , Kennedy Nicholas , McGaver Rebecca Stone , Homan Morgan , Shah Ayush , Sieffert Kayla , Wulf Corey , Larson Christopher , Bjerke Brian , LaPrade Robert
Published: August 2024

Objectives:

The purpose of this paper was to compare patient reported outcomes (PROMs) between isolated anterior cruciate ligament (ACLR) and ACLR with concomitant medial meniscus ramp and lateral meniscus root repairs and compare PROMs between different medial meniscus ramp and lateral meniscus root repair techniques.

Methods:

All patients with isolated (ISO) ACL reconstruction or ACL reconstruction with concomitant medial meniscus ramp and lateral meniscus root repairs with a minimum 2 years of follow-up were retrospectively evaluated. Institutional review board approval was obtained for this study. A final total of 42 ISO-ACL patients were matched based upon age, sex, and body mass index to 40 in the “terrible triad” (TT) cohorts. Outcome measures were obtained from 32 patients in the ISO cohort, and 38 patients in the TT cohort. The PROMs used for this study include the International Knee Documentation Committee (IKDC) Subjective Knee, Cincinnati, Tegner, Lysholm, Veterans RAND 12-Item Health Survey (VR-12), and Knee Injury and Osteoarthritis Outcomes Score (KOOS) questionnaire forms. T tests and chi-square goodness of fit tests were used to compare the above PROMs both pre- and postoperatively within each cohort, and between cohorts and rates of revision or reoperation.

Results:

The preoperative and postoperative PROMs between patients in the isolated cohort and the triad cohort demonstrated no significant differences, except for the Physical category of the VR-12, in which the triad cohort had significantly higher results (p = 0.04) (Figure 1). Both the isolated cohort and the triad cohort reported significant differences between pre- and postoperative PROMs within their own cohorts. When comparing methods of surgery, including all-inside vs. inside-out for the medial meniscus repairs and tunnel versus no-tunnel for the lateral meniscus root repairs, no significant differences were found between postoperative PROMs. Additionally, no significant difference was found in revision or reoperative rates between the triad and isolated cohorts (p = 0.374) (Figure 2), the all-inside versus inside-out medial meniscus cohorts (p = 0.267), or the tunnel vs. no-tunnel lateral meniscus cohorts (p = 0.781).

Conclusions:

There was no significant difference in PROMs between isolated ACLR versus ACLR with concomitant medial meniscus ramp and lateral meniscus root repairs. While the complexity of the TT ACLR patients was more involved, PROMs and healing rates were similar and performing concurrent medial ramp and lateral root repairs at the time of ACLR should be considered.
Poster 372: ChatGPT is a Useful Tool for Patients with Acute Achilles Tendon Ruptures
Authors: Samsonov Alan , Butler James , Azam Mohammad , Rettig Samantha , Kennedy John
Published: August 2024

Objectives:

The use of web-based technology in healthcare delivery is ubiquitous. ChatGPT, a readily available artificial intelligence (AI) chatbot, has the potential to augment current practice. ChatGPT has shown rudimentary promise as a source of information for orthopaedic patients. The use of ChatGPT in foot and ankle surgery, particularly for acute Achilles tendon ruptures (AATR), has not been described. The purpose of this study was to assess the quality of information provided by ChatGPT in response to frequently asked questions about AATR.

Methods:

ChatGPT was posed 10 frequently asked questions about AATR in a conversational thread. Responses were recorded and no follow-up queries or clarification was obtained. The responses were subsequently graded “A,” “B,” “C,” or “F,” corresponding with “excellent response,” “adequate response needing mild clarification,” “inadequate response needing moderate clarification,” and “poor response needing severe clarification.”

Results:

Of the 10 responses, 2 were grade “A,” 6 were grade “B,” 1 was grade “C,” and 0 were grade “F.” Overall, ChatGPT provided good quality responses to the posed questions.

Conclusions:

ChatGPT responded well to questions regarding AATR, using simple language to provide responses representative of the current literature surrounding AATR. Overall, ChatGPT performed well providing good-to-great quality responses to frequently-asked questions about AATR. This study emphasized the potential role of ChatGPT as a source of information for patients who suffer AATR.
Poster 389: Patients Undergoing Revision MPFL Reconstruction Demonstrate More Pathologic Anatomy Than Those Undergoing Primary MPFL Reconstruction
Authors: Magnussen Robert , Ward Jacob , Milliron Eric , Cavendish Parker , Barker Tyler , Flanigan David
Published: August 2024

Objectives:

The medial patellofemoral ligament (MPFL) ligament is one of the most important medial stabilizers of the knee joint. Reconstruction of the MPFL restores knee joint stability in most appropriately selected patients with patellar dislocations. Although rare, revision procedures are performed when primary MPFL reconstruction fails. There are limited data characterizing patients who undergo revision MPFL surgery. The objective of this study is to compare demographic and imaging characteristics of patients undergoing revision MPFL reconstruction with those undergoing primary patellofemoral ligament (PFL) reconstruction.

Methods:

Patients who underwent MPFL reconstruction between 2008 and 2021 were included in this retrospective study. Demographic information (age, sex, body mass index [BMI]), surgical procedures, preoperative imaging (Caton-Deschamps index (CDI), tibial tuberosity to trochlear groove [TT-TG] distance, sulcus angle and depth), clinical findings (J-sign), and intra-op findings (cartilage status) were extracted from the electronic medical records. The above characteristics were compared between the primary and revision cohorts.

Results:

A total of 223 patients underwent MPFL reconstruction within the study period, including 30 revision and 193 primary procedures. For the revision cohort, mean patient age was 23.3 years and the population included 10 males and 20 females, with an average BMI of 29.8 kg/m2. For the primary cohort, the mean age was 23.7 years and the population included 71 males and 120 females, with an average BMI of 27.0 kg/m2. Concomitant tibial tubercle osteotomy was performed in 35 primary cases (18.3%) and in 8 revision cases (26. 7%). The mean TT-TG distance was 24.7mm in the revision group and 17.5 mm in the primary group (p = 0.022). The mean sulcus angle revision group was 145 degrees and 140 degrees for the primary group (p = 0.007). A J sign was noted in 40 % of the revision group and 25% of the primary group (p = 0.011). Articular cartilage damage was noted in the patella in 24 cases (80%) in the revision group and 61 cases (32%) of primary cases and on the trochlea in 3 cases in the revision group (10%) and 31 cases (16.2%) in the primary group.

Conclusions:

Patients undergoing revision MPFL surgery had a higher BMI, larger TT-TG distance and sulcus angle, and were more likely to have a J-sign than those undergoing primary surgery. Further work is necessary to characterize the outcomes of these revision procedures.
How Biofeedback With Surface EMG Can Contribute to the Diagnosis and Treatment of AMI in the Knee
Authors: Richaud Thomas , Lacaze Kevin , Fassio Alexandre , Nicolas Paul , Ourliac Maxime , Hennart Benoit , Ina Jason G. , Sonnery-Cottet Bertrand , Cavaignac Etienne
Published: August 2024

Background:

Arthrogenic muscle inhibition (AMI) is a complex neurological phenomenon that is actually very common. AMI can appear following a knee injury or knee surgery. If it is not addressed, the patient's function can be negatively affected. There is currently no specific tool for the diagnosis and treatment of AMI.

Indications:

Following surgery or injury to the knee, AMI causes defective activation of the quadriceps, sometimes combined with a knee extension deficit. A clinical classification of AMI has been proposed recently to help with making the diagnosis and to guide treatment. In this article, we describe how biofeedback and surface electromyography (EMG) can be used in the early diagnosis and treatment of knee AMI.

Technique Description:

Biofeedback is based on transformation of physiological variables into a visual or auditory signal. This allows the patient to learn how to control physical and bodily functions, which were previously considered as involuntary processes. This technique requires the use of a specific device that transforms the measured physiological signals—neuromuscular activation in this instance—into visual signals. This tool incorporates surface EMG, with electrodes connected to a measuring unit. This unit is connected to a screen that shows the neuromuscular activation in real time. Thus, EMG biofeedback can be used to help clinicians make a diagnosis and to specifically treat the AMI.

Results:

We have used biofeedback in patients who have a knee injury or who have undergone knee surgery. Both the therapist and patient were able to objectively see the presence of AMI using the biofeedback device. For treatment, the therapist works with a patient by providing clear instructions and increasingly more challenging goals. We show examples of how patients were able to eliminate their AMI by using biofeedback.

Discussion/Conclusion:

EMG biofeedback is a promising tool for the diagnosis and treatment of AMI after an anterior cruciate ligament (ACL) tear and ACL reconstruction surgery. The next steps are to define thresholds and a rehabilitation protocol that will be used in a clinical trial.

Patient Consent Disclosure Statement:

The author(s) attests that consent has been obtained from any patient(s) appearing in this publication. If the individual may be identifiable, the author(s) has included a statement of release or other written form of approval from the patient(s) with this submission for publication.
Morphology and root canal configuration of maxillary canines: a systematic review and meta-analysis
Authors: Wolf Thomas Gerhard , Rempapi Theodora , Wierichs Richard Johannes , Waber Andrea Lisa
Published: August 2024

Background

This study assessed the internal morphology of maxillary canines (MxC) through a systematic review of existing literature.

Methods

Research articles up to June 2024 were retrieved from five electronic databases (MEDLINE via PubMed, Embase, Scopus, LILACS, and Cochrane). Predefined search terms and keywords were used, and potential studies were identified by cross-referencing and bibliographies of the selected articles reviewed.

Results

Two hundred studies were identified, 73 duplicates were removed, 127 records were screened, and 113 were removed after consultation of title and abstract. After full-text consultation and hand searching, finally 22 studies were included. Using the method for describing the root canal configuration (RCC) of Briseño Marroquín et al. (2015) and Vertucci (Ve) (1984), the most frequently reported RCC of MxC were 1–1-1/1 (Ve I, 75.4–100%), 2–2-1/1 (Ve II, 0.1–20%), 1–2-1/1 (Ve III, 0.1–11.6%), 2–2-2/2 (Ve IV, 0.1–0.4%), 1–1-2/2 (Ve V, 0.1–2.4%), 2–1-2/2 (Ve VI, 0.5–1.2%), and 1–2-1/2 (Ve VII, 0.1–0.2%). The meta-analysis of six studies (Europe/Asia) showed that a significantly higher number of RCC of 2–2-1/1 (Ve II) (OR [95%CI] = 1.34 [0.53, 3.41]), 1–2-1/1 (Ve III) (OR [95%CI] = 2.07 [1.01, 4.26]), and 1–1-2/2 (Ve V) (OR [95%CI] = 2.93 [1.07, 8.07]), were observed in males, and 2–2-2/2 (Ve IV) (OR [95%CI] = 0.08 [0.00, 4.00]) in females. No sex differences in the RCC of 1–1-1/1 (Ve I) and 1–2-1/2 (Ve VII) were observed.

Conclusions

Cone beam computed tomography is the most frequently used method for research on the RCC of MxC. Despite the high prevalence of type 1–1-1/1 (Ve I) RCC in MxC, clinicians should remain vigilant for more complex and sex-differentiated patterns in up to 25% of cases to prevent endodontic treatment complications or failures.
Trait impulsivity is associated with an increased risk of type 2 diabetes incidence in adults over 8 years of follow-up: results from the NutriNet-Santé cohort
Authors: Gómez-Martínez Carlos , Paolassini-Guesnier Pauline , Fezeu Léopold , Srour Bernard , Hercberg Serge , Touvier Mathilde , Babio Nancy , Salas-Salvadó Jordi , Péneau Sandrine
Published: August 2024

Background

Type 2 diabetes is one of the most prevalent and preventable diseases worldwide and impulsivity, a psychological trait characterized by making quick decisions without forethought, has been suggested as a key feature for health-related conditions. However, there have been no studies examining the relationships between impulsivity and the incidence of type 2 diabetes and our aim was to assess the prospective association between trait impulsivity and the risk of developing type 2 diabetes.

Methods

A prospective observational study design was conducted between May 2014 and February 2023 within the NutriNet-Santé cohort. A web-based platform was used to collect data from the French adult population, with voluntary enrollment and participation. Of the 157,591 adults (≥ 18 years old) participating in the NutriNet-Santé study when impulsivity was assessed, 109,214 participants were excluded due to prevalent type 1 or 2 diabetes or missing data for impulsivity or follow-up data for type 2 diabetes. Trait impulsivity, and the attention, motor, and non-planning subfactors, were assessed at baseline using the Barratt Impulsiveness Scale 11. Incident type 2 diabetes was ascertained through follow-up. Medical information was reviewed by NutriNet-Santé physician experts to ascertain incident diabetes cases based on the ICD-10. Cox regression models, using hazard ratios and 95% confidence intervals (HR [95% CI]), were performed to evaluate associations between impulsivity per 1 standard deviation increment and type 2 diabetes risk, adjusting by recognized confounders.

Results

Of the 48,377 individuals studied (women 77.6%; age at baseline = 50.6 year ± 14.5 years), 556 individuals developed type 2 diabetes over a median follow-up of 7.78 (IQR: 3.97–8.49) years. Baseline impulsivity was associated with an increased risk of type 2 diabetes incidence (HR = 1.10 [1.02, 1.20]). The motor impulsivity subfactor was positively associated with type 2 diabetes risk (HR = 1.14 [1.04, 1.24]), whereas no associations were found for attention and non-planning impulsivity subfactors.

Conclusions

Trait impulsivity was associated with an increased type 2 diabetes risk, mainly driven by the motor impulsivity subfactor. If these results are replicated in other populations and settings, trait impulsivity may become an important psychological risk factor to be considered in the prevention of type 2 diabetes.

Cohort registration

Name of registry: The NutriNet-Santé Study. A Web-based Prospective Cohort Study of the Relationship Between Nutrition and Health and of Dietary Patterns and Nutritional Status Predictors.

Cohort registration number: NCT03335644.

Date of registration: October 11, 2017.

URL: https://clinicaltrials.gov/ct2/show/NCT03335644