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Objectives: Electric biking (E-bike) is a growing recreation and transportation mode often linked to high-impact injuries. This study aimed to identify the age and sex-specific distribution and primary mechanisms of E-bike-related injuries in the US., Methods: The National Electronic Injury Surveillance System (NEISS) was queried for E-bike-related injuries present to US Emergency Department (Eds) from 1 January 2013-31 December 2022. Each narrative was reviewed to exclude injuries not sustained while directly operating an E-bike. Injuries that occurred while riding regular bikes, mopeds, or motorized vehicles that were not E-bikes were also excluded. Patient demographics, injured body part, diagnosis, and disposition were recorded. NEISS narratives were assessed to identify injury mechanisms. Annual injury trends were evaluated by exponential regression and case weighting was completed, all using SPSS statistical software., Results: A total of 45,845 nationally estimated (NE) E-bike-related injuries (1,049 NEISS Cases) presented to US EDs from 2013-2022. Exponential regression revealed a significant increase in annual injuries across the study period ( p  = 0.047). The frequency of injuries remained steady prior to 2019, with a 90.9% increase from 2019 (NE: 2,171) to 2022 (NE: 23749) ( p  = 0.005). Hospitalization was required for 10.9% of patients following E-bike-related injury, with hospitalization most frequently occurring through fracture (51.2%) and concussion (29.9%). The most injured body part for the youth, middle school and high school age groups was the head, whereas the college, young adult and adult group was the finger. Lastly, 30% of injuries associated with E-biking had motor vehicle involvement., Conclusion: The rate of E-bike-related injuries has risen significantly over the last decade, including a large increase post-COVID. Falls causing fractures were the most frequent injury type for both sexes. Greater than 10% of patients required hospital admission. The high rate of vehicle-induced collisions emphasizes the need for additional regulations and legislation to protect E-bikers.

Purpose: To analyze the association between patients' neighborhood level of socioeconomic disadvantage according to their Area Deprivation Index (ADI) and (1) delays between anterior cruciate ligament (ACL) injury and anterior cruciate ligament reconstruction (ACLR), and (2) concomitant knee injuries at the time of treatment., Methods: This was a retrospective study of consecutive patients aged 18 years or older who underwent an ACLR at a single academic institution between 2015 and 2021. Each patient's home address was mapped to obtain their ADI to determine their level of socioeconomic disadvantage. Patients were categorized by their ADI score into 3 groups: least disadvantaged (ADI scores 0-3), middle group (ADI scores 4-6), and most disadvantaged (ADI scores 7-10). Time-to-event multivariable Cox proportional-hazard analysis was used to assess the association between ADI groups and delays in ACLR while controlling for relevant demographic, clinical, and surgical variables. Additional multivariable logistic regression analyses assessed this relationship using clinically relevant time thresholds of 12 weeks and 6 months between the time of injury and ACLR., Results: We identified 383 patients for inclusion. Patients in the most disadvantaged group had an increased incidence of concomitant meniscectomies performed at the time of ACLR for irreparable tears (51.5% vs 34.8% [least disadvantaged], P = .04). Multivariate analysis revealed patients in the most disadvantaged group were at significant risk of delayed ACLR (hazard ratio, 1.36; 95% confidence interval [CI], 1.02-1.86; P = .04), with a 2.24 times risk of delays >12 weeks (95% CI, 1.13-4.44, P = .02), and a 2.36 times risk of delays >6 months (95% CI, 1.2-4.65, P = .01). Non-White race was similarly associated with significant risk of ACLR delays >3 (odds ratio, 2.02; 95% CI, 1.22-3.33; P = .006) and 6 months (OR, 1.77; 95% CI, 1.06-2.95; P = .03)., Conclusions: Socioeconomically disadvantaged and non-White patients who sustain ACL tears are at a greater risk of delays in the time of injury to ACLR and for undergoing a concomitant meniscectomy., Level of Evidence: Level IV, retrospective case series., (Copyright © 2024 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.)