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[Thoracoscopic minimally invasive surgery for the treatment of flail chest with multiple rib fractures].
Zhongguo Gu Shang
January 2025
Department of Thoracic Surgery, Hanyang Hospital, Wuhan University of Science and Technology, Wuhan 430050, Hubei, China.
Objective: To investigate the clinical efficacy of thoracoscopic minimally invasive surgery with nickel-titanium shape memory alloy wrap bone plate versus rib periosteal internal fixation in patients with multiple rib fractures (MRF) and flail chest.
Methods: A retrospective analysis was performed on 100 patients with MRF and flail chest treated with thoracoscopic minimally invasive surgery and internal fixation with rib fracture preservation between January 2019 and December 2022, including 54 males and 46 females, aged from 20 to 65 years old, with an average age of (38.0±18.
Biomechanical analysis of three kinds of rigid internal fixation methods for condylar head fractures.
Hua Xi Kou Qiang Yi Xue Za Zhi
February 2025
Dept. of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China.
Objectives: This study aims to analyze the biomechanics of three kinds of rigid internal fixation methods for condylar head fractures.
Methods: A three dimensional finite element model of the normal mandible was constructed. It was then used to prepare condylar head fracture finite element model and three kinds of rigid internal fixation finite element model (unilateral tension screw, bilateral tension screw, tension screw+titanium plate).
Mandibular Reconstruction With a Patient-Specific Implant Following Surgical Excision of an Acanthomatous Ameloblastoma in a Dog.
J Vet Dent
January 2025
Department of Dentistry, Oral and Maxillo-facial Surgery, Eastcott Veterinary Referrals, Part of Linnaeus Group, Swindon, UK.
Canine acanthomatous ameloblastoma (CAA) is an invasive benign epithelial odontogenic tumour most commonly affecting the mandible of large breed dogs. To the author's knowledge, this report describes the first computer-aided design patient-specific implant (PSI) that has been placed for a critical sized bone defect in mandibular reconstruction of a dog in the UK. The aim was to restore mandibular stability using a regenerative approach combining a titanium locking plate and compression-resistant matrix infused with recombinant human bone morphogenetic protein-2 (rhBMP-2) to bridge the 85 mm mandibular defect created by a segmental mandibulectomy.
View Article and Find Full Text PDFBiomechanical evaluation of different fixation techniques in the rotation of the maxillary occlusal plane after Le Fort I osteotomy.
J Clin Exp Dent
December 2024
Faculty of Dentistry of Pernambuco, University of Pernambuco, 50100130, Recife, Pernambuco, Brasil.
Background: To analyze the biomechanical and functional characteristics of different maxillary fixation techniques after Le Fort I osteotomy and occlusal plane rotation, using the finite element method to simulate the mechanical behavior of three different osteosynthesis approaches.
Material And Methods: This is a virtual experimental study carried out using finite element analysis to compare three different osteosynthesis techniques after Le Fort I osteotomy and rotation of the maxillary occlusal plane. Three configurations were tested: four-point fixation with "L" plates (C1), two-point fixation with "L" plates (C2), and two-point fixation with pre-modeled Lindorf plates (C3).
Biomechanical simulation of bed turning post-acetabular fracture fixation.
Sci Rep
January 2025
Department of Orthopaedic, South China Hospital of Shenzhen University, Shenzhen, 518116, Guangdong, China.
Before patients begin out-of-bed exercises following internal fixation surgery for acetabular fractures, turning over in bed serves as a crucial intervention to mitigate complications associated with prolonged bed rest. However, data on the safety of this maneuver post-surgery are limited, and the biomechanical evidence remains unclear. This study aims to introduce a novel loading protocol designed to preliminarily simulate the action of turning over in bed and to compare the biomechanical properties of two fixation methods for acetabular fractures under this new protocol.
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