Total Hip Joint Replacement in Young Male Patient with Osteoporosis, Secondary to Hypogonadotropic Hypogonadism

Popescu, Dora Maria

doi:10.4183/aeb.2015.109

Cited by 10 publications

(10 citation statements)

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“…The femoral implants used were 3 Gamma nails, one interlocking nail, and 6 dynamic hip screws. Cases with diagnosed infection and pathological fractures were not included in the study because of the confounding role they can have on research [34][35][36]. The osteosynthesis performed was by closed reduction and intramedullary nailing in 6 cases (3 femoral and 3 tibia fractures), one of the femoral fracture sites, and one tibia fracture requiring open reduction, followed by nailing.…”

Section: Methodsmentioning

confidence: 99%

Failure Analysis of Retrieved Osteosynthesis Implants

et al. 2020

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Failure of osteosynthesis implants is an intricate matter with challenging management that calls for efficient investigation and prevention. Using implant retrieval analysis combined with standard radiological examination, we evaluated the main causes for osteosynthesis implant breakdown and the relations among them for a series of cases. Twenty-one patients diagnosed with implant failure were assessed for this work. For metallurgical analysis, microscopy techniques such as scanning electron microscopy (SEM), stereomicroscopy, and optical microscopy were employed. The results showed that material structural deficiencies (nine patients) and faulty surgical techniques (eight patients) were the main causes for failure. An important number of patients presented with material structural deficiencies superimposed on an imperfect osteosynthesis technique (six patients). Consequently, the importance of failure retrieval analysis should not be overlooked, and in combination with other investigational techniques, must provide information for both implant manufacturing and design improvement, as well as osteosynthesis technique optimization.

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Section: Methodsmentioning

confidence: 99%

Failure Analysis of Retrieved Osteosynthesis Implants

et al. 2020

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“…The biofilm represents a sessile microbial community comprising microbial cells with altered phenotype, characterized by reduced growth rate and altered gene expression [29]. Biofilms are generally included in a protective polysaccharide matrix secreted by biofilm cells and are found attached to a surface [30][31][32][33][34][35].…”

Section: Clinical Surgerymentioning

confidence: 99%

The Role of Biomaterials in Upper Digestive Tract Transoral Reconstruction

Grigore¹,

Popescu²,

Berteșteanu³

et al. 2020

Preprint

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This study aims to establish whether the use of biomaterials, particularly polydimethylsiloxane (PDMS), for surgical reconstruction of the esophagus with templates, Montgomery salivary tube, after radical oncology surgery for malignant neoplasia is an optimal choice for patients’ safety and for optimal function preservation and organ rehabilitation. Methods: Structural analysis by Raman spectrometry and biomechanical properties with dynamic mechanical analysis are performed for fatigue strength and toughness, essential factors in durability of a prosthesis in the reconstruction practice of the esophagus. Nanocomposites with silicone elastomers and nanoparticles used in implantable devices and in the reconstruction surgery are facing risks of infection and fatigue strength when required to perform a mechanical effort for long periods of time. Results: This report takes into account the effect of silver (Ag) nanoparticles on the fatigue strength using polydimethylsiloxane (PDMS) matrix, representative for silicon elastomers used in implantable devices. PDMS with 5% (wt) Ag nanoparticles of 100-150 nm during mechanical fatigue testing at shear strength loses elasticity properties after 400 loading-unloading cycles and up to 15% shear strain. The fatigue strength, toughness, maximum shear strength are the key issues in designing Montgomery salivary tube with appropriate biomechanical behavior for each patient. Conclusions: Prosthesis design needs to indulge both clinical outcome as well as design methods and research in the field of biomaterials.

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“…The biofilm represents a sessile microbial community comprising microbial cells with altered phenotype, characterized by a reduced growth rate and altered gene expression [ 23 ]. Biofilms are generally included in a protective polysaccharide matrix secreted by biofilm cells and are found attached to a surface [ 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

The Role of Biomaterials in Upper Digestive Tract Transoral Reconstruction

et al. 2021

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This study aims to establish whether the use of biomaterials, particularly polydimethylsiloxane (PDMS), for surgical reconstruction of the esophagus with templates, Montgomery salivary tube, after radical oncology surgery for malignant neoplasia is an optimal choice for patients’ safety and for optimal function preservation and organ rehabilitation. Structural analysis by Raman spectrometry and biomechanical properties with dynamic mechanical analysis are performed for fatigue strength and toughness, essential factors in durability of a prosthesis in the reconstruction practice of the esophagus. Nanocomposites with silicone elastomers and nanoparticles used in implantable devices and in reconstruction surgery present risks of infection and fatigue strength when required to perform a mechanical effort for long periods of time. This report takes into account the effect of silver (Ag) nanoparticles on the fatigue strength using polydimethylsiloxane (PDMS) matrix, representative for silicon elastomers used in implantable devices. PDMS with 5% (wt) Ag nanoparticles of 100–150 nm during mechanical fatigue testing at shear strength loses elasticity properties after 400 loading-unloading cycles and up to 15% shear strain. The fatigue strength, toughness, maximum shear strength, as well as clinical properties are key issues in designing Montgomery salivary tube and derivates with appropriate biomechanical behavior for each patient. Prosthesis design needs to indulge both clinical outcomes as well as design methods and research in the field of biomaterials.

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Total Hip Joint Replacement in Young Male Patient with Osteoporosis, Secondary to Hypogonadotropic Hypogonadism

Cited by 10 publications

References 0 publications

Failure Analysis of Retrieved Osteosynthesis Implants

Failure Analysis of Retrieved Osteosynthesis Implants

The Role of Biomaterials in Upper Digestive Tract Transoral Reconstruction

The Role of Biomaterials in Upper Digestive Tract Transoral Reconstruction

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