Injury Data Research Articles

Occupational percutaneous injuries and exposures at a dental teaching institution from 2017 to 2023

Background: All dental professionals face the risk of occupational percutaneous injuries and exposures. Previous studies have reported high incidents of percutaneous injuries among dentists. This study examined injury data over six years at a large teaching institution for trends to increase awareness and to design appropriate interventions to reduce injury rates. Method: Study injury data was collected for the department of employee and occupational health. The data was entered into an electronic incident reporting system from 2017-2023. Statistical analysis was performed with Openepi to determine injury trend by year and overall association by activity type. Result: There was a total of 168 injuries reported between 2017 and 2023. A majority of the injuries (54%) were caused by a needle or sutures followed by instruments at 41%. Most of the injuries (44%) occurred during treatment and while cleaning the surgical spaces at 15%. Only 13% of the injuries were attributed to handling or recapping needles. Chi-square test 0.2618 (p>.05) indicated there was no significant difference between years and number of injuries. Overall chi-square p ( < 0 .001) by activity type was significant indicating risk was not equal across all activities. Conclusion: Injuries declined during COVID-19 but soared back up in 2023. Needles, sutures, and instruments were the predominant source of injuries. Injuries occurred during treatment (43%), while cleaning the surgical space (15%) and while recapping or handling needles (13%). This study is the first step in understanding the trend and factors attributing to injuries to implement appropriate corrective actions. Further analysis should be conducted to identify specific procedures or clinical activities exposing employees to Occupational percutaneous injuries.

Angiotensin-Converting Enzyme Inhibitors or Angiotensin-Receptor Blockers for Advanced Chronic Kidney Disease : A Systematic Review and Retrospective Individual Participant-Level Meta-analysis of Clinical Trials.

In patients with advanced chronic kidney disease (CKD), the effects of initiating treatment with an angiotensin-converting enzyme inhibitor (ACEi) or angiotensin-receptor blocker (ARB) on the risk for kidney failure with replacement therapy (KFRT) and death remain unclear. To examine the association of ACEi or ARB treatment initiation, relative to a non-ACEi or ARB comparator, with rates of KFRT and death. Ovid Medline and the Chronic Kidney Disease Epidemiology Collaboration Clinical Trials Consortium from 1946 through 31 December 2023. Completed randomized controlled trials testing either an ACEi or an ARB versus a comparator (placebo or antihypertensive drugs other than ACEi or ARB) that included patients with a baseline estimated glomerular filtration rate (eGFR) below 30 mL/min/1.73 m2. The primary outcome was KFRT, and the secondary outcome was death before KFRT. Analyses were done using Cox proportional hazards models according to the intention-to-treat principle. Prespecified subgroup analyses were done according to baseline age (<65 vs. ≥65 years), eGFR (<20 vs. ≥20 mL/min/1.73 m2), albuminuria (urine albumin-creatinine ratio <300 vs. ≥300 mg/g), and history of diabetes. A total of 1739 participants from 18 trials were included, with a mean age of 54.9 years and mean eGFR of 22.2 mL/min/1.73 m2, of whom 624 (35.9%) developed KFRT and 133 (7.6%) died during a median follow-up of 34 months (IQR, 19 to 40 months). Overall, ACEi or ARB treatment initiation led to lower risk for KFRT (adjusted hazard ratio, 0.66 [95% CI, 0.55 to 0.79]) but not death (hazard ratio, 0.86 [CI, 0.58 to 1.28]). There was no statistically significant interaction between ACEi or ARB treatment and age, eGFR, albuminuria, or diabetes (P for interaction > 0.05 for all). Individual participant-level data for hyperkalemia or acute kidney injury were not available. Initiation of ACEi or ARB therapy protects against KFRT, but not death, in people with advanced CKD. National Institutes of Health. (PROSPERO: CRD42022307589).

Time to level the playing field between men and women — Given similar injury incidence: A two-season analysis of match injuries in elite men and women's (Super League) rugby league

ObjectivesTo compare match injury incidence, severity and burden in men's and women's elite rugby league. DesignA prospective cohort epidemiological study. MethodsTime loss match injury data were collected from all men's (11,301 exposure hours) and women's (5,244 exposure hours) Super League clubs. ResultsInjury incidence and burden were not different between men and women (mean [95 % CI]; 54 [45 to 65] vs. 60 [49 to 74] per 1000 match-hours; p = 0.39, and 2332 [1844 to 2951] vs. 1951 [1560 to 2440] days lost per 1000 match-hours; p = 0.26). However, injury severity was greater for men than women (42 [35–50] vs. 35 [29 to 42]; p = 0.01). Lower limbs accounted for 54 % and 52 % of injuries for men and women, with the head/face the most frequently injured location due to concussion (12 [10 to 15] and 10 [8 to 14] per 1000 match-hours for men and women). Injuries to the knee had the greatest burden for men and women (708 [268–1868] and 863 [320–2328] days lost per 1000 match-hours). Being tackled was the most common injury mechanism for men and women (28 % and 38 %) with greater burden (p < 0.01) than other injury mechanisms. ConclusionsMale and female rugby league players have similar injury incidence and burden; however, injury severity was higher in men. Head/face injuries have the highest injury incidence and knee injuries have the highest burden. These injuries should be the focus for prevention initiatives at a league (via laws), player, and coach level, with equal and specific focus for both men's and women's rugby league players.

Poster 373: Lower Extremity Injury Rates on Turf Versus Natural Grass Surfaces - An Analysis of Professional Football Athletes in the 2021 and 2022 Seasons

Objectives: As the emphasis on player safety in the national football league (NFL) has increased in recent years, numerous risk factors for injury have been closely scrutinized for their roles in placing players at increased risk. One such factor, the use of artificial turf football fields, has become a controversial topic, with many current and former players stating that turf fields place players at higher risk for injury while alternative sources have suggested there is no significant injury rate between artificial and natural grass surfaces. The purpose of this study was to quantify the rate of lower extremity injuries occurring in NFL players on artificial turf compared to natural grass surfaces and to characterize the degree of time missed with injury and the proportion of injuries requiring surgery. We hypothesized that major lower extremity injuries requiring surgical intervention occurred on artificial turf surfaces at a higher rate than on natural grass. Methods: Lower extremity Injury data for the 2021 and 2022 NFL seasons were obtained using publicly available records from the internet. All reported lower extremity injuries during the regular and playoff seasons were analyzed. Upper extremity, head, and back injuries were excluded. Preseason data was also excluded. Data collected included player position and age, playing surface of the field on which, the injury occurred, injury type, weeks missed with injury, and whether the patient underwent season-ending or minor surgery. Statistical analysis was performed using R Software (Rlabs). Descriptive statistics were used to summarize data, including percentages and counts for categorical and ordinal data and means with interquartile ranges for continuous data. Incidences of injury on both grass and turf fields were calculated for the 2021 and 2022 seasons by taking a ratio of the number of injuries that occurred and the number of games played on respective fields. Additionally, injuries were stratified by subsequent number of games missed: 0 games missed, 1-2 games missed, &gt;6 games missed. Multivariable logistic regression was performed to determine the influence of field type on the risk of major surgery. A p-value less than 0.05 was statistically significant. Results: In total there were 327 (44.12%) lower extremity injuries in 2021 and 391 (54.45%) lower extremity injuries in 2022, resulting in a total of 718 lower extremity injuries. A demographic summary of these injuries by position, age, field, and history of previous injury is displaced in Table 1. Combining the 2021/2022 seasons, the incidence rate of lower extremity injury on natural grass surfaces was 1.22 injuries/game while for turf surfaces, the incidence rate was 1.42 injuries/game (Table 2). Injury severity was stratified by weeks missed. Odds of a season-ending surgery were found to be significantly higher on turf surfaces compared to natural grass surfaces (OR 1.60, 95% CI 1.28-1.99, p&lt;0.05), while additional variables, including weather, age, position, and week of injury occurrence and history of prior injury were not found to influence the odds of season-ending surgery. In total, there were 50 players injured on the grass who required lower extremity surgery and 83 players injured on turf who required lower extremity surgeries. The most common surgeries after a lower extremity on grass were ACL repair (17), Achilles repair (9), and ankle or syndesmosis ORIF (7). The most common surgeries after a lower extremity on turf were ACL repair (30), Achilles repair (12), patella ORIF, or patellar tendon repair (8) (Table 3). Conclusions: The debate about playing on artificial turf versus natural grass has persisted for several years; however, there is a discrepancy in data reported on these overall injury rates. Our study showed that NFL athletes were more likely to get injured on artificial surfaces and that turf dramatically increased the likelihood of suffering a serious injury requiring surgery. These findings support earlier research, highlighting the necessity of putting player safety first and reducing dangers on pitches with artificial turf. For players, coaches, and teams to make wise decisions about playing surfaces, the study offers useful information regarding playing safety. Overall, it indicates that there is a higher risk of lower extremity injuries on artificial grass in the NFL, confirming the continuing discussion about field safety.

Poster 177: Snowboarding Related Concussions and Musculoskeletal Injuries in the Pediatric Population: An 11-Year Analysis of National Injury Data

Objectives: Snowboarding is a high energy sport associated with traumatic musculoskeletal injury. Although the pediatric population constitutes most snowboarding injuries, no study has investigated this cohort in further detail. The purpose of this study is to analyze underlying etiologies, diagnoses, and injury trends of pediatric snowboarding injuries presenting to United States emergency departments. Methods: Data from the National Electronic Injury Surveillance System (NEISS) were analyzed for pediatric snowboarding injuries (≤18 years old) from January 1, 2012 to December 31, 2022. Data were collected for mechanism of injury, diagnosis, location of injury, and disposition. National estimates (NE) were calculated using the statistical sample weight of the corresponding hospital assigned by the NEISS. Linear regressions were used to analyze injury trends over time. Results: In total, 3,036 (NE=120,140) pediatric snowboarding injuries were included in this study. Average age was 14.0 ± 2.7 years. The most common mechanism of injury was impact with the ground (NE=97,120, 80.8%). The most common diagnoses were fractures (NE=48,886, 40.7%), strains/sprains (NE=22,948, 19.1%), and concussions (NE=12,553, 10.4%). Most common fractures occurred at the wrist (NE=18,122, 37.1%), lower arm (NE=12,348, 25.3%), and shoulder (NE=9,073, 18.6%). Overall, 96.1% injuries were treated without admission. There were decreases of 1,051 injuries (p&lt;0.01), 299 fractures (p=0.04), 298 strains/sprains (p&lt;0.001), and 143 concussions (p&lt;0.01) per year during the study period. Mechanisms of injury demonstrated decreasing annual trends of 784 impact with ground injuries per year (p&lt;0.01), 161 not specified injuries per year (p&lt;0.01), and 42 impact with inanimate object injuries per year (p=0.03). Conclusions: There was a large decline in pediatric snowboarding injuries over the last decade. Given the small proportion requiring hospital admission, the decline may reflect increasing on-site management of less-severe snowboarding injuries. These findings also highlight the importance of protective equipment considering the large proportion of injuries secondary to impact with the ground.

Unsupervised Machine Learning inCountermovement Jump andIsometric Mid-Thigh Pull Performance Produces Distinct Combat andPhysical Fitness Clusters inMale andFemale U.S. Marine Corps Recruits.

Several challenges face the U.S. Marine Corps (USMC) and other services in their efforts to design recruit training to augment warfighter mobility and resilience in both male and female recruits as part of an integrated model. Strength and power underpin many of the physical competencies required to meet the occupational demands one might face in military. As the military considers adopting force plate technology to assess indices of strength and power, an opportunity presents itself for the use of machine learning on large datasets to deduce the relevance of variables related to performance and injury risk. The primary aim of this study was to determine whether cluster analysis on baseline strength and power data derived from countermovement jump (CMJ) and isometric mid-thigh pull (IMTP) adequately partitions men and women entering recruit training into distinct performance clusters. The secondary aim of this study is then to assess the between-cluster frequencies of musculoskeletal injury (MSKI). Five hundred and sixty-five males (n = 386) and females (n = 179) at the Marine Corps Recruit Depots located at Parris Island and San Diego were enrolled in the study. Recruits performed CMJ and IMTP tests at the onset of training. Injury data were collected via medical chart review. Combat fitness test (CFT) and physical fitness test (PFT) results were provided to the study team by the USMC. A k-means cluster analysis was performed on CMJ relative peak power, IMTP relative peak force, and dynamic strength index. Independent sample t-tests and Cohen's d effect sizes assessed between-cluster differences in CFT and PFT performance. Differences in cumulative incidence of lower extremity %MSKIs were analyzed using Fisher's exact test. Relative risk and 95% confidence intervals (CIs) were also calculated. The overall effects of cluster designation on CMJ and IMTP outcomes ranged from moderate (relative peak power: d = -0.68, 95% CI, -0.85 to -0.51) to large (relative peak force: d = -1.69, 95% CI, -1.88 to -1.49; dynamic strength index: d = 1.20, 95% CI, 1.02-1.38), indicating acceptable k-means cluster partitioning. Independent sample t-tests revealed that both men and women in cluster 2 (C2) significantly outperformed those in cluster 1 (C1) in all events of the CFT and PFT (P < .05). The overall and within-gender effect of cluster designation on both CFT and PFT performance ranged from small (d > 0.2) to moderate (d > 0.5). Men in C2, the high-performing cluster, demonstrated a significantly lower incidence of ankle MSKI (P = .04, RR = 0.2, 95% CI, 0.1-1.0). No other between-cluster differences in MSKI were statistically significant. Our results indicate that strength and power metrics derived from force plate tests effectively partition USMC male and female recruits into distinct performance clusters with relevance to tactical and physical fitness using k-means clustering. These data support the potential for expanded use of force plates in assessing readiness in a cohort of men and women entering USMC recruit training. The ability to pre-emptively identify high and low performers in the CFT and PFT can aid in leadership developing frameworks for tailoring training to enhance combat and physical fitness with benchmark values of strength and power.

Cost of agricultural injuries in the United States: Estimates based on surveillance, insurance, and government statistics.

Agriculture is a hazardous industry but the frequency and severity of agricultural injuries are not well documented as nonfatal injuries to self-employed farmers are excluded from national surveillance. The aim of this study was to provide new injury rate and cost estimates in US agriculture. Injury data were obtained from 2018 to 2020 Farm and Ranch Health and Safety Surveys. Responses from 7,195 farm/ranch operators included injury frequency, medical expense, and lost work time data. These injury rate and cost data were used to estimate national injury costs for self-employed farmers using Census of Agriculture operator count, injury costs for hired agricultural workers using Bureau of Labor Statistics (BLS) nonfatal injury count, and fatal injury costs using BLS count of fatal injuries. The injury rate for self-employed farmers and ranchers was 15.25 injuries per 100 operators or 11.9 "recordable" injuries per 100 full time equivalent operators (FTE). Average costs for nonfatal injuries were: $10,878 for medical care, $4735 for lost work time, and $15,613 in total per injury case. The total national agricultural injury cost estimate was $11.31 billion per year; 11.3% higher than the earlier benchmark using 1992 data; both in March 2024 dollars. The cost burden was 2.1% of the US national gross farm income and 13.4% of the net farm income in 2019. Injuries result in significant economic losses to farm and ranch operators, their family members, workers, and society. Preventive efforts should be scaled up to reduce the frequency and costs of agricultural injuries.

Epidemiology of Non-Contact Muscle Injuries in the Italian Male Elite Under-19 Football (Soccer) Championship

BackgroundWhile extensive research exists on muscle injuries among adult football players, a notable gap persists in studies concerning younger footballers. The aim of the current study is to provide epidemiological data on the characteristics of time-loss muscle injuries in young football players participating in the Italian Under-19 male elite Championship (“Primavera 1”).ResultsConducted as a multicentre, prospective, observational cohort study, this research gathered injury data from the 2022-23 season across 14 of the 18 Clubs in the first Italian Under-19 championship. The cohort comprised 391 players with a mean age (± standard deviation) of 18.0 ± 0.4 years. A total of 479 injuries were reported, resulting in 14,231 days of activity lost. Of these, muscle injuries were 209 (44%), accounting for 4,519 (32%) days lost. Overall muscle injuries incidence was 1.82/1000 hours, with a mean injury burden of 39.4 days lost/1000 hours. Almost all muscle injuries (206 out of 209: 98.5%) occurred in hamstrings, quadriceps, adductors, calf and iliopsoas. Hamstrings injuries were the most burdensome (18.8 days lost/1000 hours) accounting for nearly half of all days lost due to muscle injuries. Incidence and burden of adductors injuries (0.25 injuries and 4.1 days lost/1000 hours, respectively) were found to be comparable to calf injuries (0.24 injuries and 4.7 days lost/1000 hours, respectively). Iliopsoas injuries accounted for a noteworthy portion of the total, with an injury incidence of 0.16/1000 hours and a burden of 3.3 days lost/1000 hours. Injuries with myo-tendinous or myo-aponeurotic involvement demonstrated delayed return-to-football compared to those without such involvement (35.6 vs. 18.5 days, p < 0.0001).ConclusionsThe study highlighted a peculiar distribution of non-contact muscle injuries among elite young football players. While hamstring injuries were confirmed as the most burdensome, incidence and burden of adductors and calf injuries were found to be similar. A significant incidence and burden of iliopsoas injuries were observed. These findings suggest potential implementations for targeted injury prevention strategies in the Italian male elite Under-19 football Championship.

A Qualitative Enquiry of On-Farm Rules About Quad Bikes (ATVs): How Rules Are Determined and Implemented at a Farm Level in Rural Australia

ABSTRACT Objective Quad bikes are a leading cause of death and incident-related injury on farms, yet little is understood about rules used by farmers to ensure their safe operation. This study explored rules about quad bikes set by those who live or work on farms. Through the case of quad bikes, this study sought to understand how rules are determined and implemented at the farm level. Setting A mix of farm types and locations in rural Australia including Queensland, South Australia, and New South Wales. Participants Eight farmers were interviewed and recruited from information sheets at farmers’ markets, through a local health organisation, and a media release. Design Thematic analysis was used to transform data from eight semi-structured interviews with farmers in rural Australia. Results Data were distilled into two themes – “Rule content” described the explicit rules farmers had set on their properties, while the theme “Underlying rule principles” explored the values and norms which underpinned the creation and implementation of these rules. Conclusions Through the case of quad bike rules, this study illustrated how rules are determined and implemented at the farm level. Perceptions of risk were tied to farmers being experts in their own environment and therefore able to mitigate risk. In contrast to injury data, reckless use of quad bikes was perceived to cause incidents, and this was the basis of rules for adults and children.

Four distinct patterns of anterior cruciate ligament injury in women’s professional football (soccer): a systematic video analysis of 37 match injuries

BackgroundTo identify mechanisms and patterns of anterior cruciate ligament (ACL) injury in adult women’s professional football by means of video match analysis.MethodsACL match injuries sustained in Germany’s first women’s league...

Injuries in Athletics (Track and Field): A Narrative Review Presenting the Current Problem of Injuries

Objective: In Athletics (Track and Field), athletes can be affected by injuries, especially in their quest for top performance. Therefore, we aim to provide an overview of the current knowledge about the problem of injuries in Athletics. Main findings: It is necessary to maintain a clear definition of “injury” when stakeholders in Athletics discuss clinical, administrative, and/ or research perspectives. There are several possible methodological approaches to collect injury data in Athletics depending on the context, population, and injury definition. In general, about two thirds of Athletics athletes sustain at least one injury during an Athletics season, and there are about 100 injuries per 1000 registered athletes during an international championship. The injury rates and characteristics vary by sex and discipline. The injuries can affect athletes physically, psychologically, and socially, with short- and long-term consequences for musculoskeletal function, athletics performance and athletics career. Although it is logical to try to reduce the injury risk, little scientific evidence is currently available to help Athletics-related stakeholders. Conclusions: Injury can currently be considered as an omnipresent problem in Athletics, which affects their practice, with consequences on performance and health. Injury risk is today an undeniable part of the life of Athletics athletes, which implies that there is a pressing need to continue the development of injury risk reduction strategies, to scientifically evaluate their efficacy, and to implement them in sports practice.

The major league baseball pitch clock: First year analysis of pitcher injuries

Recently, star pitchers in Major League Baseball (MLB) have faced devastating elbow injuries, causing some to question whether implementation of the MLB pitch clock during the 2023 season has led to a higher rate of elbow injuries among pitchers. This study aims to determine if implementation of the MLB pitch clock in the 2023 MLB season affected the injury rate in pitchers. Injury data was collected for the 2021, 2022, and 2023 MLB seasons using the fangraphs.com injury database. Incidence rate ratio was calculated to compare the injury rate for the 2023 season to the 2021 and 2022 seasons. A z-test for proportions was used to determine significance levels. The 2023 season showed a decrease in the rate of the total number of injuries when compared to the 2021 (P=0.01) and 2022 (P=0.02) seasons. There was no statistical difference in the rate of Tommy John Surgery, Flexor Tendon Injuries, or other cause elbow injuries. Following implementation of the MLB pitch clock during the 2023 season, the total number of injuries decreased, but there was no change in the rate of elbow injuries in pitchers compared with the 2021 and 2022 MLB seasons. Future studies are needed to determine if the pitch clock has a longitudinal effect on injuries.

Prophylactic dressings to prevent sacral pressure injuries in adult patients admitted to intensive care units: A three-arm feasibility randomized controlled trial

BackgroundPressure injuries in intensive care patients are a safety issue. Specialized foam sacral prophylactic dressings prevent pressure injuries with several products available for clinicians to choose from. ObjectivesAssess the feasibility of conducting a multisite trial to test the effectiveness of two dressings versus usual care in preventing sacral pressure injuries in intensive care patients. MethodsUsing a three-arm pilot randomized trial design, adult intensive care unit patients at risk for pressure injuries were randomly allocated to the Mepilex® Sacrum dressing, the Allevyn™ Life Sacrum dressing or the control group. Daily pressure injury data were collected including a de-identified sacral photograph, which the blinded outcome assessor used to determine the study end point: a new sacral pressure injury. Pre-determined feasibility criteria were measured in terms of eligibility, recruitment, retention, intervention fidelity and missing data. ResultsFrom May-September 2021, we screened 602 intensive care unit adult patients for eligibility with 93 % (n = 558) excluded. Forty-four (7 %) were eligible, and all were recruited and randomized (100 %). After receipt of the intervention two participants withdrew from the study. Our final sample of 42 participants were randomly allocated to the Mepilex® (n = 12), Allevyn™ (n = 14) or control (n = 16) group. The interventions were delivered as intended and there were 11 (6 %) cases of missing outcome data. Five participants (12 %) developed a sacral pressure injury, four of whom received a sacral dressing. ConclusionsA larger trial is feasible with minor refinement to the length of stay eligibility criterion. Implications for practiceProphylactic sacral dressings are recommended for pressure injury prevention. Determining the feasibility of a larger trial to test the effectiveness of two dressings versus usual care in preventing sacral pressure injuries in intensive care patients can provide evidence to aid clinicians, policy makers and managers make value-based care decisions.

Direct Combat-related U.S. Army Aviation Injuries 2003-2014.

The U.S. Army Aeromedical Research Laboratory (USAARL), a partner in the Joint Trauma Analysis for the Prevention of Injury in Combat (JTAPIC) partnership, conducted a series of retrospective reviews to investigate injuries sustained by occupants of U.S. Army rotary-wing aircraft involved in combat damage incidents. The reviews were conducted to provide occupant survivability information to the Aviation Survivability Development and Tactics team, an agency within the U.S. Army Aviation Center of Excellence. For these reviews, combat damage incidents that produced casualties were separated into direct events (i.e., events in which an enemy weapon system directly injured occupants) and indirect events (i.e., incidents in which occupants were injured as a result of a crash caused by the enemy weapon system). The previous USAARL reviews provided an overview of injuries sustained during direct and indirect events. The objective of this review was to conduct a detailed analysis of injuries occurring during direct events. A descriptive retrospective review was conducted on injuries sustained by occupants of U.S. Army rotary-wing aircraft involved in combat damage incidents between 2003 and 2014. All Black Hawk, Apache, and Chinook combat aviation damage incidents for the study period were reviewed. Personnel casualty information from the Defense Casualty Information Processing System (DCIPS) was linked to combat damage incident information by matching the aircraft platform, incident date, and circumstantial information found in incident narratives. Injury information for personnel identified in DCIPS as being wounded in action was obtained from the JTAPIC partnership; injury data for personnel killed in action were retrieved from the Armed Forces Medical Examiner System. All injuries were coded using the Abbreviated Injury Scale (AIS). Descriptive statistics were used to describe the frequency and distribution of injuries to personnel involved in direct events. Overall, the extremities were the most commonly injured body regions, with lower extremities suffering more injuries than upper extremities. Penetrating injuries were identified as the primary injury mechanism for all body regions. Injuries to each AIS body region were predominantly of minor (AIS 1) and moderate (AIS 2) severity. Although injury severities were generally low (AIS 1 or AIS 2), the results of this effort indicate which body regions may benefit from additional protection during rotary-wing operations in hostile environments. The influence of occupant position within the aircraft and the use and effectiveness of personal protective equipment could not be effectively analyzed due to a lack of information.

Causal Relationships of Ligamentous Injuries in the Knee on Corticospinal Tract Structure: A Mendelian Randomization Analysis.

The association between ligamentous knee injuries and corticospinal tract (CST) structure has attracted attention; however, any causal relationship remains uncertain. We performed Mendelian randomization (MR) analysis to identify the causal effects of ligamentous knee injuries on the CST. Ligamentous knee injuries impair CST microstructure (ie, by reducing fractional anisotropy [FA] and increasing mean diffusivity [MD]). MR analysis. Level 2. MR uses genetic variants as instrumental variables to infer causal relationships between exposures and outcomes. Summary data for ligamentous injuries in knee and CST structure were obtained from genome-wide association study datasets. Significant and independent (5 × 10-6; r2 < 0.001; 10,000 kb) single-nucleotide polymorphisms were extracted for MR analysis. Three methods for MR analysis were used (hypothesis-driven 1-tailed inverse variance weighted, MR-Egger, and weighted median), and sensitivity analyses were conducted to test reliability and stability. Results from 3 MR methods consistently demonstrated that ligamentous knee injuries increased MD of the right CST (β, 0.063; 90% CI, 0.003-0.123; P = 0.04), and weak statistical significance suggested increased MD of the left CST (β, 0.060; 90% CI, -0.002 to -0.121; P = 0.05). However, no significant causal relationships were observed in CST FA, and no significant pleiotropy or heterogeneity was observed. Sensitivity analysis utilizing 2-tailed tests had no significant associations between ligamentous knee injuries and changes in CST structure. There is statistically weak genetic evidence that corticospinal pathway abnormalities may evolve after ligamentous knee injuries, which manifests as abnormally organized neurites. Ligamentous knee injuries require attention not only to damage to the structure of the knee joint itself but also to the process of maladaptive neuroplasticity that leads to structural and functional changes of the CST; novel interventions that target the corticospinal pathway may provide subsequent treatment of ligamentous knee injuries.

Replication of a local record keeping method for collecting road crash data in low resource settings: lessons from Bangladesh and Nepal

BackgroundPolice road crash and injury data in low-income and middle-income countries are known to under-report crashes, fatalities and injuries, especially for vulnerable road users. Local record keepers, who are members...

Musculoskeletal injury and medical discharge prevalence during Army basic training

Musculoskeletal injuries (MSKIs) pose the primary health and operational risk to the military trainee population particularly those within basic training, leading to several issues such as reduced training time, chronic morbidity, and inevitably increased medical discharge. The purpose of the study was to investigate the current incidence, prevalence, and nature of MSKIs across British Army basic training. In addition to identifying the prevalence of MSKI medical discharges concerning the type and nature of the injury. A retrospective analysis of the Army Recruiting and Initial Training Command MSKI and Medical Discharge database was undertaken. Injury data was collected from Primary Care Rehabilitation Facilities at British Army training units, using a standardised procedure. A multiple-choice questionnaire was used within the initial consultation with the clinician to determine the severity and progression of the injury, whilst consenting to a data privacy notice. Prevalence of MSKIs (% recruits) was articulated in relation to the total number of recruits starting each training year. Over the past decade MSKIs have declined from a peak of 47% in men and 58% in women in 2013/14, to 22% in men and 21% in women in the 2022/23 training year, with the prevalence of female MSKIs being lower than male counterparts for the first time in this population. Trauma and overuse injuries correspond for 48% and 52% of these MSKIs respectively in 2022/2023, whereas historically overuse injuries have been responsible for a greater proportion. These overuse and trauma injuries were most common in the early stages of training. Lower limb injuries were more prevalent throughout training, resembling 2021/22 data where lower limb injuries accounted for c.80% of total MSKIs among both sexes. The total number of MSKIs resulting in medical discharges was 70, constituting 1.1% of all recruits. Among these discharges, 54 were observed in men and 16 in women. The prevalence of MSKIs resulting in medical discharges was 4.5% in men and 12.4 % in women. The gap between MSKI prevalence between sexes has decreased with recent data showing prevalence being similar. Despite this, women had an increased risk of medical discharge, suggesting gender differences in the severity of MSKIs. To reduce MSKI prevalence, strategies should focus on lower limb injuries, with an emphasis on the early stages of training.

Management of Suspected Peripheral Vascular Injuries in Orthopedic Trauma.

In orthopedic trauma, identification of extremity trauma combined with vascular injury is challenging. Missed diagnosis may result in amputation or even death. The purpose of this study was to investigate whether physical examination combined with handheld vascular ultrasound Doppler examination could be an effective method of screening for peripheral vascular injury and to explore the characteristics of vascular injuries in orthopedic trauma patients. Retrospective analysis of patients in the emergency department of orthopedic trauma in our hospital from January 2022 to October 2023. Physical examination combined with handheld vascular ultrasound Doppler examination was used as a screening method for suspected vascular injuries. Patients with suspected vascular injury would undergo further angiography and receive multidisciplinary treatment. Angiography was used as the gold standard for diagnosing vascular injuries. Patient demographics, mechanism of injury, location and type of injury, angiographic results, surgical notes, and early treatment outcome data were recorded. A total of 55 cases (58 limb injuries) with suspected vascular injury were ultimately included. Angiography revealed that 53 cases (55 limbs, positive rate 94.8%) were considered to have confirmed vascular injuries. Forty-three were male (81.1%) and 10 were female (18.9%), with mean age 44.1 ± 16.6 years. The main mechanism of injury was traffic accident (30, 56.7%). Most common site of vascular injuries was knee joint (30/55, 54.5%), and popliteal artery (23, 47.9%) was the most commonly injured blood vessel. After multidisciplinary collaborative treatment, overall patient mortality was 3.8% (2/53), and limb survival rate among surviving patients was 81.1% (43/53) in our study. In orthopedic trauma, "Hard signs" and "soft signs" combined with handheld vascular ultrasound Doppler examination were effective ways to screen for suspected vascular injuries. Most limbs had associated fractures or dislocations at the site of vascular injury. Collaboration of vascular surgery, microsurgery and orthopedic trauma may help improve patients' prognosis.

Orthopedic Injuries in Beach Tennis Players in Brazil.

Objective To analyze the epidemiological data of orthopedic injuries in beach tennis players. Methods We conducted a cross-sectional study, through a questionnaire, with 185 beach tennis players during tournaments and training sessions in two cities. The questionnaire comprised anthropometric data, as well as data on length of time practicing the sport and reported orthopedic injuries. Results We excluded 25 of the 185 interviewees. Of the 160 players studied, 51.9% were male and 48.1%, female. The average age was of 40.4 years, the average height was of 1.73 m, the average weight was of 75.6 kg, and the average body mass index (BMI) was of 25.2 kg/m 2 . Orthopedic injuries were reported by 48.8% of the participants, 30.0% in the lower limbs, 11.3% in the spine, and 25.0% in the upper limbs, with an incidence of 0.82 per one thousand hours of practice. Correlating the incidence of injuries with age, weight, height, and BMI, we only found relevance between the higher average age in patients with lower- and upper-limb injuries. Players who had no previous experience with other racket sports had fewer injuries. Other parameters, such as gender, use of the two-handed backhand , dominant side, participation in competitions, and practice of other sports did not show statistically significant differences. Conclusion Orthopedic injuries were found in almost half of the beach tennis players, primarily in the lower limbs. Age, experience with other racket sports, category, hours of training per week, and length of time playing the sport influenced the incidence of orthopedic injuries.

Descriptive epidemiology study of hand injuries sustained in Gaelic football referred to a hand therapy service over 1 year

ObjectivesGaelic football requires ball handling, such as bouncing, fist passing and catching. To date, no research has examined the types of injuries sustained to the hand in this sport. This...