External Validation of a Predictive Score for Fracture-Related Infections in Orthopedic Trauma Surgery.

Background: The purpose of this study was to externally validate a predictive score for fracture-related infections, establishing generalizability for absolute and relative risk of infection in the setting of orthopedic fracture surgery.

Materials And Methods: This was a retrospective, case-control study performed at a level I academic trauma center that included 147 patients with fracture-related infection in the study group and 300 control patients. We analyzed the same 8 independent predictors of fracture-related infection cited by a previous study.

Stingray Sensor System for Persistent Survey of the GEO Belt.

The Stingray sensor system is a 15-camera optical array dedicated to the nightly astrometric and photometric survey of the geosynchronous Earth orbit (GEO) belt visible above Tucson, Arizona. The primary scientific goal is to characterize GEO and near-GEO satellites based on their observable properties. This system is completely autonomous in both data acquisition and processing, with human oversight reserved for data quality assurance and system maintenance.

Augmented Stress Weight-bearing CT for Evaluation of Subtle Lisfranc Injuries in the Elite Athlete.

Background: Lisfranc injuries refer to a disruption or displacement of the tarsometatarsal joint of the foot. Subtle Lisfranc injuries can go undiagnosed on conventional imaging leading to devastating consequences and poor functional outcomes for elite athletes. Objective.

Regulatory role of NFAT1 signaling in articular chondrocyte activities and osteoarthritis pathogenesis.

Osteoarthritis (OA), the most common form of joint disease, is characterized clinically by joint pain, stiffness, and deformity. OA is now considered a whole joint disease; however, the breakdown of the articular cartilage remains the major hallmark of the disease. Current treatments targeting OA symptoms have a limited impact on impeding or reversing the OA progression.

The high optical brightness of the BlueWalker 3 satellite.

Large constellations of bright artificial satellites in low Earth orbit pose significant challenges to ground-based astronomy. Current orbiting constellation satellites have brightnesses between apparent magnitudes 4 and 6, whereas in the near-infrared Ks band, they can reach magnitude 2 (ref. ).

Afterhours patient phone calls: a quality improvement study.

Unlabelled: The objective was to determine the most common topic of patient phone calls received by on-call orthopedic residents at a single academic institution in order to identify areas of improvement for patient outcome and resident workload and wellbeing.

Design: Patient phone calls over 82 shifts were documented from May 2020 to January 2021 by on-call orthopedic residents. The length, nature, and associated attending physician of each call were recorded, as well as whether the call resulted in an emergency department visit.

Current Definitions of Failure in Lateral Ankle Instability Surgery: A Systematic Review.

Background: "Failure" is a term that is frequently used to describe an unfavorable outcome for patients who undergo surgical treatment for lateral ankle instability (LAI). A standard definition of failure for the surgical treatment of ankle instability has not been established by clinicians and researchers.

Purpose: To identify the definitions of ankle instability treatment failure that are currently in the literature and to work toward the standardization of the definition.

Augmented stress weightbearing CT for evaluation of subtle tibiofibular syndesmotic injuries in the elite athlete.

Objective: We aim to present a novel imaging technique utilizing weight-bearing CT with syndesmotic stress to identify subtle, unstable syndesmotic injuries. We illustrate this with a case presentation of such an injury in an elite athlete that ultimately required operative fixation.

Materials And Methods: In order to perform an augmented stress weightbearing CT, the patient is in the standing position, feet facing forward, and with weight distributed equally.

Ulnar Epiphysiodesis: Success of the Index Procedure.

Introduction: Premature radial physeal closure is a relatively rare occurrence in children. When isolated growth arrest of the radius with continued ulnar growth occurs, the resulting ulnar positive deformity leads to altered wrist mechanics and pain. Timely epiphysiodesis of the distal ulna with and without ulnar shortening osteotomy can address these issues, but continued ulnar overgrowth is a possible complication.