We study the characteristics of straight skeletons of monotone polygonal chains and use them to devise an algorithm for computing positively weighted straight skeletons of monotone polygons. Our algorithm runs in [Formula: see text] time and [Formula: see text] space, where denotes the number of vertices of the polygon.
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http://dx.doi.org/10.1016/j.ipl.2014.09.021 | DOI Listing |
Arch Orthop Trauma Surg
January 2025
Adult Reconstruction and Joint Replacement Service, Hospital for Special Surgery, New York, USA.
Introduction: Knee alignment significantly impacts the outcome of total knee arthroplasty (TKA). Understanding patient perceptions of their knee alignment in relation to objective measurements is essential to ensure optimal surgical outcomes and to meet patients' expectations. This study reports patients' perception of pre- and postoperative knee alignment in relation to radiographic alignment measurements.
View Article and Find Full Text PDFSci Prog
January 2025
Department of Physical Education and Sports, Igdir University Sports Science Faculty, Igdir, Turkey.
Introduction: Evaluating the mechanical-anatomical alignment and angles of the knee joint is crucial for athletes. We aimed to analyse the relationship between lower extremity bone alignment and the importance of the Q angle (QA) in male athletes.
Methods: We included 38 male professional football athletes without any alignment or varus-valgus deformity who actively played football in various football clubs in Istanbul.
Sci Rep
January 2025
Department of Mechanical & Industrial Engineering, Montana State University, Bozeman, MT, 59717, USA.
We hypothesized that daily exercise promotes joint health by upregulating anti-inflammatory mediators via adaptive molecular and metabolic changes in the infrapatellar fat pad (IFP). We tested this hypothesis by conducting time-resolved analyses between 1 and 14 days of voluntary wheel running exercise in C57BL/6J mice. IFP structure and cellularity were evaluated by histomorphology, picrosirius red collagen staining, and flow cytometry analysis of stromal vascular fraction cells.
View Article and Find Full Text PDFSci Rep
January 2025
College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Health, Dubai, UAE.
The first cervical vertebra (C1) is atypical in shape and bears a complex relationship with important neurovascular structures such as the vertebral artery and cervical spinal cord which are at risk of injury during misplaced screw fixation of C1. Placement of screws into the lateral mass of C1 vertebra is performed for stabilization of the craniovertebral junction. The objective of this study was to describe ideal screw dimensions, precise entry points, safe bony corridors, and ideal trajectories for placement of lateral mass screws in the Emirati population.
View Article and Find Full Text PDFEur J Trauma Emerg Surg
January 2025
Department of Trauma and Orthopedic Surgery, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany.
Background: Rib and sternum fractures are common injuries associated with cardiopulmonary resuscitation (CPR). The fracture mechanism is either direct by application of force on sternum and anterior ribs or indirect by bending through compression of the thorax. The aim of this study was to determine morphologies of rib fractures after CPR and to reevaluate prior findings on fracture localisation, type and degree of dislocation.
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