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[Comparison of the stability of dual INFIX and INFIX combined with sacroiliac screw fixation for C1 type pelvic fractures].
Zhongguo Gu Shang
November 2024
Department of Orthopaedics, the Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, China.
Objective: To evaluate the biomechanical stability of dual anterior subcutaneous internal fixation (INFIX) in pelvic C1 fractures by finite element analysis, and to compare it with INFIX combined with sacroiliac screws to determine whether it is sufficient to replace the combined fixation of anterior and posterior rings.
Methods: The pelvic CT data of a 43-year-old female volunteer were imported into the computer and the normal pelvic model and pelvic C1 fractures model were constructed using Mimics, Workbench and other software. The latter was fixed with dual INFIX and INFIX combined with sacroiliac screws, respectively.
Magnesium-based alloys with adapted interfaces for bone implants and tissue engineering.
Regen Biomater
November 2023
Faculty of Electrical Engineering, National University of Science and Technology POLITEHNICA Bucharest, 060042 Bucharest, Romania.
Magnesium and its alloys are one of the most used materials for bone implants and tissue engineering. They are characterized by numerous advantages such as biodegradability, high biocompatibility and mechanical properties with values close to the human bone. Unfortunately, the implant surface must be adequately tuned, or Mg-based alloys must be alloyed with other chemical elements due to their increased corrosion effect in physiological media.
View Article and Find Full Text PDF[Corrective osteotomies around the knee joint using hexapods].
Oper Orthop Traumatol
April 2024
Klinik für Orthopädie und Unfallchirurgie, Sozialstiftung Bamberg, Buger Str. 80, 96049, Bamberg, Deutschland.
Objective: Correction of deformities around the knee joint in the frontal and sagittal axis, torsion, length and translation.
Indications: Complex deformities of the proximal tibia, and to a lesser extent of the distal femur, which cannot be treated with acute correction using plate or nail osteosynthesis.
Contraindications: Nicotine abuse, soft tissue problems, lack of patient compliance.
Atypical Mal de Meleda in a Hispanic Patient.
Case Rep Dermatol Med
September 2023
School of Medicine, Pontifical Catholic University of Ecuador, Ave 12 de Octubre 1076, 170143 Quito, Ecuador.
Mal de Meleda (MDM) is a rare autosomal palmoplantar keratoderma (PPK) skin disorder (estimated incidence of 1 per 100,000 people) commonly associated with consanguinity and early childhood onset. MDM is characterized by bilateral diffusion of PPK plaques with delimited yellowish lesions that transgredien to the dorsum of the hands and feet. Additional features include nail dystrophy, lichenoid lesions, hyperhidrotic maceration, involvement of the knees and elbows, malodor, fungal superinfections, and digital constrictions.
View Article and Find Full Text PDFComparing the mechanical characteristics between leg lengthening using only an Ilizarov external fixator and leg lengthening over a nail using an external fixator manufactured in Vietnam.
Eur J Orthop Surg Traumatol
February 2024
Institute of Trauma and Orthopaedics, 108 Central Military Hospital, No. 01 Tran Hung Dao Street, Hanoi, Vietnam.
Purpose: The mechanical characteristics of leg lengthening over a nail (LON) using an external fixator are not well known; specifically, the number of rings and K-wires required for this method has not been determined. This study aimed to compare the mechanical characteristics of leg LON using the simplest configuration for a domestic frame and those of leg lengthening using the Ilizarov frame alone.
Methods: The mechanical characteristics of cow tibial samples for lengthening over an intramedullary nail in combination with a domestic external fixator (LON samples) and for lengthening with the Ilizarov frame (Ilizarov samples) were evaluated by assessing axial compression, bending load, and torsional load.
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