Search results for " Prostheses and implants"

showing 6 items of 6 documents

Clinical analysis following lumbar interspinous devices implant: where we are and where we go

2014

Objectives:We present our experience with patients treated with interspinous devices who are affected by neurogenic intermittent claudication (NIC) or lumbar disc herniation (LDH) where the interspinous system has been inserted following microdiscectomy.Study design:Retrospective study.Methods:This study included patients (n=100) with NIC secondary to lumbar spinal stenosis (group 1), and patients (n=100) with LDH (group 2) in whom the interspinous device has been implanted following radicular decompression in a period spanning 6 years. The latter have been compared with a homogenous group of patients (n=100) where no interspinous system has been implanted following microdiscectomy (group 3…

AdultMaleReoperationMicrosurgerymedicine.medical_specialtyTime FactorsVisual analogue scaleDecompressionlumbar interspinous devicesAdult Prostheses and Implants Aged Decompression Surgical Disability Evaluation Female Follow-Up Studies Intermittent Claudication Intervertebral Disc Displacement Humans Lumbar Vertebrae Microsurgery Minimally Invasive Surgical Procedures Middle Aged Male Retrospective Studies Pain Measurement Patient Satisfaction Surveys and Questionnaires Reoperation Recurrence Treatment Outcome Spinal StenosisDisability EvaluationSpinal StenosisLumbarRecurrenceSurveys and QuestionnairesmedicineHumansMinimally Invasive Surgical ProceduresAgedPain MeasurementRetrospective StudiesLumbar VertebraeSettore MED/27 - Neurochirurgiabusiness.industryLumbar spinal stenosisProstheses and ImplantsGeneral MedicineIntermittent ClaudicationMiddle AgedDecompression Surgicalmedicine.diseaseIntermittent claudicationOswestry Disability IndexSurgeryTreatment OutcomeNeurologyPatient SatisfactionFemaleNeurology (clinical)Implantmedicine.symptombusinessClaudicationIntervertebral Disc DisplacementFollow-Up StudiesSpinal Cord
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Modified fixation free plug technique using a new 3D multilamellar implant for inguinal hernia repair: a retrospective study of a single operator cas…

2013

Aim: Implant fixation, mesh shrinkage and poor quality of tissue ingrowth are unresolved issues in modern hernia repair. Many complications reported in the literature such as bleeding, nerve entrapment, hematoma, pain, discomfort, and testicular complications, are considered to be a direct results of implant fixation. This article describes the outcomes of a procedure carried out using a handcrafted implant that addresses the issues consequent to point fixation. Methods: This was a retrospective study on the short, medium and long-term results of placing a-modified, fixation free three-dimensional polypropylene implant in 61 patients who underwent inguinal hernia repair using a novel delive…

AdultMalemedicine.medical_specialtyHerniaAdolescentmedicine.medical_treatmentprostheses and implantOperative TimeHernia InguinalPolypropylenesProsthesis DesignFixation (surgical)HematomaPostoperative ComplicationsRetrospective Studiemedicineprosthesis fixation.HumansHerniaHerniorrhaphyAgedRetrospective StudiesAged 80 and overPain Postoperativebusiness.industryHernia; Herniorrhaphy; Inguinal; Prostheses and implants; Prosthesis fixation; Adolescent; Adult; Aged; Aged 80 and over; Female; Hernia Inguinal; Herniorrhaphy; Humans; Male; Middle Aged; Operative Time; Pain Postoperative; Polypropylenes; Postoperative Complications; Prosthesis Design; Retrospective Studies; Treatment Outcome; Surgical Mesh; Surgery; Medicine (all)Medicine (all)Chronic painMiddle AgedSurgical Meshmedicine.diseaseHernia repairSurgeryInguinal herniaSettore MED/18 - Chirurgia GeneraleSurgical meshTreatment OutcomeinguinalSurgeryFemaleImplantPostoperative ComplicationbusinessProsthesis fixationPolypropylenehernia; inguinal; herniorrhaphy; prostheses and implants; prosthesis fixation.HumanHernia : the journal of hernias and abdominal wall surgery
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A New Prosthetic Implant for Inguinal Hernia Repair: Its Features in a Porcine Experimental Model

2011

Even after more than 100 years of inguinal hernia repair, the rate of complications and recurrence remains unacceptably high. In the last decades, few effective advances in surgical technique and materials have been made. The authors see them as minor adjustments in the shape and materials of the prosthetic implants. Still, the underlying genesis of inguinal hernia remains undefined. Based upon this, it seems the surgical repair of inguinal protrusions cannot be based upon the pathogenesis because the etiology to date has not been addressed. Most hernia repairs are performed with some degree of point fixation (sutures/tacks) to stop the mesh from migrating and creating high recurrence rates…

MaleSettore MED/18 - Chirurgia GeneraleTissue ScaffoldsHernia Inguinal Biocompatible materials Prostheses and implants Incorporation Guided tissue regeneration Tissue scaffoldingGuided Tissue RegenerationSwineAnimalsits features in a porcine experimental model [A new prosthetic implant for inguinal hernia repair]Hernia InguinalProstheses and ImplantsA new prosthetic implant for inguinal hernia repair: its features in a porcine experimental modelPolypropylenes
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Cell and tissue response to nanotextured Ti6Al4V and Zr implants using high-speed femtosecond laser-induced periodic surface structures

2019

In this paper, the effect of femtosecond laser nanotexturing of surfaces of Ti6Al4V and Zr implants on their biological compatibility is presented and discussed. Highly regular and homogeneous nanostructures with sub-micrometer period were imprinted on implant surfaces. Surfaces were morphologically and chemically investigated by SEM and XPS. HDFa cell lines were used for toxicity and cell viability tests, and subcutaneous implantation was applied to characterize tissue response. HDFa proliferation and in vivo experiments evidenced the strong influence of the surface topography compared to the effect of the surface elemental composition (metal or alloy). The effect of protein adsorption fro…

Materials scienceNanostructureSurface PropertiesBiomedical EngineeringPharmaceutical ScienceMedicine (miscellaneous)chemistry.chemical_elementBioengineering02 engineering and technologyOsseointegrationCell proliferation; Femtosecond laser; Fluorescence; HR-LIPSS; Nanotexturing; Cell Differentiation; Humans; Lasers; Nanostructures; Osseointegration; Osteoblasts; Osteogenesis; Surface Properties; Titanium; Zirconium; Prostheses and ImplantsFluorescencelaw.invention03 medical and health sciencesX-ray photoelectron spectroscopylawOsseointegrationOsteogenesisAlloysHumansGeneral Materials ScienceCell proliferation030304 developmental biologyTitanium0303 health sciencesOsteoblastsLasersTitanium alloyCell DifferentiationProstheses and Implants021001 nanoscience & nanotechnologyLaserNanotexturingNanostructuresFemtosecond laserchemistryFemtosecondBiophysicsMolecular MedicineHR-LIPSSZirconiumNanotexturingCell proliferationFluorescenceHR-LIPSSFemtosecond laser0210 nano-technologyTitaniumProtein adsorption
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Biologic response of inguinal hernia prosthetics: a comparative study of conventional static meshes versus 3D dynamic implants.

2015

Despite improvements in prosthetics and surgical techniques, the rate of complications following inguinal hernia repair remains high. Among these, discomfort and chronic pain have become a source of increasing concern among surgeons. Poor quality of tissue ingrowth, such as thin scar plates or shrinking scars-typical results with conventional static implants and plugs-may contribute to these adverse events. Recently, a new type of 3D dynamically responsive implant was introduced to the market. This device, designed to be placed fixation-free, seems to induce ingrowth of viable and structured tissue instead of regressive fibrotic scarring. To elucidate the differences in biologic response be…

Sampling StudieTime FactorsTime FactorProstheses and ImplantBiomedical EngineeringMedicine (miscellaneous)BioengineeringBiocompatible MaterialsHernia InguinalPolypropylenesProsthesis DesignSampling StudiesStatistics NonparametricImaging Three-DimensionalProstheseTensile StrengthMaterials TestingHumansHerniorrhaphyBiocompatible MaterialMedicine (all)Inguinal herniaImplantTissue scaffoldProstheses and ImplantsSurgical MeshBiomaterialImmunohistochemistryProsthesis FailureSettore MED/18 - Chirurgia GeneraleTissue regenerationBiomaterials; Herniorrhaphy; Implants; Inguinal hernia; Prostheses; Tissue regeneration; Tissue scaffolds; Biocompatible Materials; Hernia Inguinal; Herniorrhaphy; Humans; Imaging Three-Dimensional; Immunohistochemistry; Materials Testing; Polypropylenes; Prosthesis Design; Prosthesis Failure; Sampling Studies; Statistics Nonparametric; Tensile Strength; Time Factors; Prostheses and Implants; Surgical Mesh; Biomaterials; Biomedical Engineering; Bioengineering; Medicine (miscellaneous); Medicine (all)PolypropyleneHumanArtificial organs
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Prosthetic strap system for simplified ventral hernia repair. Its results in a porcine experimental model.

2010

Abstract: Introduction Aiming to achieve a simplified ventral hernia repair, a proprietary shaped mesh was experimentally tested in the porcine model. The mesh is structured with a large central body and radiating straps. The friction of the straps passing through the tissues are hypothesized to be adequate to maintain the mesh in place during tissue ingrowth, avoiding classic point fixation while ensuring a wide coverage of the abdomen. Methods The mesh, having 6 radial straps, was placed using a sublay preperitoneal technique in 4 pigs. All straps were passed laterally through the abdominal wall and exteriorized from the skin. The straps were trimmed at the level of the skin, allowing the…

medicine.medical_specialtyFrictionSwineProsthesis ImplantationFixation (surgical)Ventral hernia; Prostheses and implants; Incorporation;Surgical fixation devices; FrictionmedicineAnimalsHerniaIncorporationProstheses and implantWound HealingSurgical fixation deviceVentral hernia repairExperimental modelSurgical Fixation Devicebusiness.industryAnatomySurgical Meshmedicine.diseaseHernia VentralSurgerybody regionsSettore MED/18 - Chirurgia GeneraleSurgical meshVentral herniaVentral herniaModels AnimalFeasibility StudiesSurgerybusinessTissue ingrowth
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