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Finite element analysis of retrograde superior ramus screw of pubis for the treament of pelvic anterior ring fracture.
J Orthop Surg Res
March 2025
Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, China.
Background: Retrograde superior ramus screw of pubis (SRSP) is a new kind of pelvic minimally invasive internal fixation apparatus developed by our team. The purpose of this study was to analyze the biomechanical stability of this new minimally invasive pelvic internal fixation device, and to provide this new device with theoretical basis for clinical application.
Methods: The Tile C1.
What about anterior endocrowns?
Evid Based Dent
March 2025
Edinburgh Dental Institute Paediatric Department 39x Lauriston Building, Edinburgh, UK.
A Commentary On: Fehrenbach J, de Soares J L S, do Nascimento Foly J C S, Miotti L L, Münchow E A Mechanical performance of endocrown restorations in anterior teeth: A systematic review and network meta-analysis. Dent Mater 2025; https://doi.org/10.
View Article and Find Full Text PDFComputational evaluation of the biomechanical effects of position changes in the femoral neck system on Pauwels type III femoral neck fractures: an in silico study.
Front Bioeng Biotechnol
February 2025
Department of Orthopedics, Luzhou Longmatan District People's Hospital, Luzhou, Sichuan, China.
Introduction: Despite the biomechanical advantages of the Femoral Neck System (FNS), improvements in postoperative complication rates have not been significant. This study evaluated the effects of different FNS positions on the biomechanical stability of Pauwels type III femoral neck fractures (FNFs) using finite element analysis (FEA).
Methods: Pauwels type III FNF models fixed with different FNS positions were constructed using various bolt lengths, bolt positions, and axis-bolt angles.
A Rare Case of Total Talar Replacement for Talar Osteonecrosis Due to Fragility Fracture Secondary to Transient Osteoporosis of the Talus.
Cureus
February 2025
Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, JPN.
We report the case of a 44-year-old male patient without a notable medical history who developed transient osteoporosis following surgery for a medial malleolus fracture, which led to a stress fracture and osteonecrosis, ultimately requiring total talar replacement. The patient sustained the fracture spraining his ankle while welding. Osteosynthesis was performed using two cannulated cancellous screws, whereas bone union was achieved 3.
View Article and Find Full Text PDFStudy on migration instability characteristics and mine pressure control of roof overburden rock in thin coal seams mining.
Sci Rep
March 2025
Sichuan Furong Group Xuyong No.1 Coal Industry Co., Ltd, Luzhou, 646499, China.
In the Guxu mining area, the mining of thin coal seams is complicated by the unknown migration structure of the roof overburden and severe mine pressure. Based on this, taking the 1599 working face as the research background, and using a method that combines theory with simulation, starting from the structural fracture of roof overburden rock in thin coal seams, the roof failure characteristics during the mining process are studied, and the roof caving shape and stress distribution characteristics under the influence of mining speed are studied is explored. The research results show that a cantilever beam with a short length forms in the overburden rock of the soft bedrock roof during thin coal seams mining.
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