138,058 results match your criteria implant


[Deep sternal wound infection after sternotomy - Report of the consensus workshop of the German-Speaking Society for Microsurgery of Peripheral Nerves and Vessels (DAM)].

Handchir Mikrochir Plast Chir 2021 May 5. Epub 2021 May 5.

Universitätsklinik für Plastische, Rekonstruktive und Ästhetische Chirurgie, Medizinische Universität Innsbruck, Österreich.

Deep sternal wound infection (TSWI) is a potentially life-threatening complication that may occur after median sternotomy, contributing to prolonged hospital stay and increased health care costs. Bacterial infection is often characterized by biofilm formation on implant material and/or dead bone. Diagnosis is made upon clinical signs and symptoms of local and systemic infection. Read More

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Novel Approach for Laparoscopically Placed Chronic Amniotic Fluid Catheters in Sheep.

Fetal Diagn Ther 2021 May 5:1-7. Epub 2021 May 5.

Department of Surgery, Boston Children's Hospital, Boston, Massachusetts, USA.

Introduction: Several fetal therapies involve repeated amniotic fluid intervention. We hypothesize that a minimally invasive approach can be used to safely implant an intrauterine catheter infusion system in a fetal ovine model for chronic use during pregnancy.

Method: Five pregnant sheep underwent operation between gestational days 110 and 115 (term 145 days). Read More

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Does Auditory Environment Predict Speech Perception Outcomes in Elderly Cochlear Implant Patients?

Audiol Neurootol 2021 May 5:1-9. Epub 2021 May 5.

Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine, Ear Institute, New York Eye and Ear Infirmary of Mount Sinai, New York, New York, USA.

Introduction: Cochlear implantation (CI) is a reliable and safe means by which sensorineural hearing loss can be ameliorated in the elderly population. However, a high degree of variation exists in postimplantation hearing outcomes for which some modifiable factors of the daily natural auditory environment may be contributory. In this study, we analyze the relationship between cochlear implant patient age, natural auditory environment, and postimplantation speech perception among older adults. Read More

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Peptide-coated polyurethane material reduces wound infection and inflammation.

Acta Biomater 2021 May 2. Epub 2021 May 2.

Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, SE, 22184 Lund, Sweden. Electronic address:

There is an urgent need for treatments that not only reduce bacterial infection that occurs during wounding but that also target the accompanying excessive inflammatory response. TCP-25, a thrombin-derived antibacterial peptide, scavenges toll-like receptor agonists such as endotoxins and lipoteichoic acid and prevents toll-like receptor-4 dimerization to reduce infection-related inflammation in vivo. Using a combination of biophysical, cellular, and microbiological assays followed by experimental studies in mouse and pig models, we show that TCP-25, when delivered from a polyurethane (PU) material, exerts anti-infective and anti-inflammatory effects in vitro and in vivo. Read More

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Drug Release from Thermo-Responsive Polymer Brush Coatings to Control Bacterial Colonization and Biofilm Growth on Titanium Implants.

Adv Healthc Mater 2021 May 5:e2100069. Epub 2021 May 5.

Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cµ), Department of Chemistry and Biology, School of Science and Technology, University of Siegen, Adolf-Reichwein-Str. 2, Siegen, 57076, Germany.

Despite decades of biomedical advances, the colonization of implant devices with bacterial biofilms is still a leading cause of implant failure. Clearly, new strategies and materials that suppress both initial and later stage bacterial colonization are required in this context. Ideal would be the implementation of a bactericidal functionality in the implants that is temporally and spatially triggered in an autonomous fashion at the infection site. Read More

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Animal experimental research assessing urogynecologic surgical mesh implants: Outcome measures describing the host response, a systematic review and meta-analysis.

Neurourol Urodyn 2021 May 5. Epub 2021 May 5.

Department of Obstetrics and Gynecology, Amsterdam Reproduction and Development, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.

Aim: Before the introduction of new biomaterials for prolapse surgery, animal studies on the host response are required. Unfortunately, large variation in study design hampers obtaining an overview of the safety and efficacy, and translation to clinical practice. Our aim is to systematically review the literature on all outcome measures describing the host response in animal studies assessing the biocompatibility of urogynecologic surgical mesh implants for prolapse surgery. Read More

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Mycoplasma hominis Lumbar Wound Infection After Posterior Decompression and Instrumented Fusion: A Case Report.

JBJS Case Connect 2021 May 5;11(2). Epub 2021 May 5.

Singhealth Orthopaedic Residency, Department of Orthopedic Surgery, Changi General Hospital, Singapore, Singapore.

Case: A 63-year-old man underwent L2-S1 decompression and fusion for spinal stenosis. He developed urinary retention postoperatively requiring catheterization. He developed fever, purulence, and foot-drop 8 days postoperatively and underwent debridement with implant retention. Read More

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Rasch Analysis of the Listening Effort Questionnaire-Cochlear Implant.

Ear Hear 2021 May 4. Epub 2021 May 4.

Patient and Population Health and Informatics, Swansea University Medical School, Singleton Park, Swansea, United Kingdom Australian Institute of Health Innovation, Macquarie University, Sydney, NSW, Australia Faculty of Medicine and Health, School of Health Sciences, University of Sydney, Sydney, NSW, Australia HEAR Centre, Macquarie University, Sydney, NSW, Australia.

Objectives: Listening effort may be defined as the attentional and cognitive resources needed to understand an auditory message, modulated by motivation. Despite the use of hearing devices such as hearing aids or cochlear implants (CIs), the requirement for high listening effort remains a challenge for individuals with hearing loss. The Listening Effort Questionnaire-Cochlear Implant (LEQ-CI) is a hearing-specific patient-reported outcome measure (PROM), which has been designed for use in the CI candidacy and rehabilitation process to assess perceived listening effort in everyday life in adults with severe-profound hearing loss. Read More

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Silicone Adenopathy and Intractable Axilary Pain after Breast Implant Augmentation - Case Report.

Chirurgia (Bucur) 2021 Mar-Apr;116(2):248-253

Silicone lymphadenophaty (siliconoma) is a rare complication secondary to breast implant augmentation or breast reconstruction surgery. Although it is usually linked to the age of the implant, the predominant etiology is multifactorial. Herein, we report a case of extensive siliconoma in the axilla in the hope that our experience will contribute to clinical decision making. Read More

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The Impact of Post-Mastectomy Radiotherapy on Delayed Alloplastic Breast Reconstruction - Experience of One Center.

Chirurgia (Bucur) 2021 Mar-Apr;116(2):224-231

Background And Objectives: Nowadays, breast cancer treatment spans from simple lesion excision to complex management including surgery (mastectomy with or without axillary lym-phadenectomy) and adjuvant treatment (chemotherapy, radiotherapy, hormonal therapy and im-munotherapy). Lately, breast reconstruction has become part of the breast cancer approach, but, while its physical and emotional benefits are undisputed, it comes with its own set of risks and complications, especially when delayed breast reconstruction after radiotherapy is performed. This paper aims to present our experience on the effects of radiotherapy in conjunction with de-layed alloplastic breast reconstruction. Read More

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Tips and Tricks for Successful Breast Reconstruction Following Radiotherapy Using the Implant-Enhanced Latissimus Dorsi Flap.

Chirurgia (Bucur) 2021 Mar-Apr;116(2):214-223

Adjuvant radiotherapy poses the most serious challenges for surgeons who must choose both the time and the optimal reconstructive method for radiotherapy patients. One of the postmastectomy reconstructive techniques, in patients subjected to radiotherapy, is the method that combines the own tissue with the alloplastic material, the latissimus dorsi flap and the breast implant. This method is highly versatile and can be safely applied to radiotherapy patients. Read More

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Persistent Seroma, a Threat to Implant-Based Breast Reconstruction?

Chirurgia (Bucur) 2021 Mar-Apr;116(2):201-208

Seroma is one of the usual postoperative complications after breast and axillary surgery. It is considered as a consequence of prolonged lymphorrhea. Its persistence means a longer healing process, increased risk of infection and in case of implant-based reconstruction, even implant loss which may result in delaying adjuvant oncologic treatment. Read More

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Robotic Prophylactic Nipple-Sparing Mastectomy with Immediate Prosthetic Breast Reconstruction: A prospective Study of 138 Procedures.

Chirurgia (Bucur) 2021 Mar-Apr;116(2):135-142

Bachground: Robotic breast surgery is an emergent procedure with encouraging preliminary results. The aim of this study is to assess the feasibility and the safety of robotic nipple sparing mastectomy (RNSM) with immediate prosthetic breast reconstruction (IPBR). This is a prospective study including from December 2015 to January 2020 all RNSM surgeries with IPBR, in patients with moderate ptosis and A B or C cup. Read More

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Major nerve injury in association with use of contraceptive implants.

Tidsskr Nor Laegeforen 2021 Apr 15. Epub 2021 Apr 15.

Background: Subcutaneous contraceptive implants are recommended to be placed in the medial upper arm. Here, the implant lies close to important neurovascular structures.

Case Presentation: We have treated two women with ulnar nerve injuries after removal of such implants. Read More

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Hospital outcomes of scoliosis surgery in children with Prader-Willi Syndrome: comparison with adolescent idiopathic scoliosis.

Spine Deform 2021 May 5. Epub 2021 May 5.

Department of Orthopedics, Clinic B, Main Building, Phoenix Children's Hospital, 1919 E Thomas Road, Phoenix, AZ, 85016, USA.

Purpose: The purpose of this study was to evaluate the peri-operative outcomes of patients with Prader-Willi Syndrome (PWS) undergoing spinal deformity correction and compare the outcomes to patients with adolescent idiopathic scoliosis (AIS).

Methods: A retrospective review of the Kid's Inpatient Database was performed from 2000 to 2012 to identify all pediatric patients with scoliosis undergoing spinal fusion. Cohorts were created on the basis of PWS diagnosis and adolescent idiopathic scoliosis. Read More

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Peri-implant bone preservation of a novel, self-cutting, and fully tapered implant in the healed crestal ridge of minipigs: submerged vs. transgingival healing.

Clin Oral Investig 2021 May 5. Epub 2021 May 5.

Department of Preclinical & Translational Research, Institut Straumann AG, Basel, Switzerland.

Objectives: The aim of this study was to assess the influence of transgingival compared with submerged healing on peri-implant bone maintenance around a novel, fully tapered implant in a healed crestal ridge in minipigs.

Materials And Methods: In each of 12 minipigs, two implants (Straumann® BLX, Roxolid® SLActive®, Ø 3.75 × 8 mm) were placed. Read More

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Influencing variables in the quality of life of children with cochlear implants: a systematic review.

Codas 2021 3;33(1):e20190153. Epub 2021 May 3.

Faculdade de Odontologia de Bauru, Universidade de São Paulo - USP - Bauru (SP), Brasil.

Purpose: To verify how the quality of life of children with cochlear implant was evaluated in published studies and to critically analyze which were the influencing variables.

Research Strategy: Research guided by PRISMA recommendations. The guiding question was elaborated based on the PICO strategy, being: "Which variables are considered as influencers on the quality of life of children with cochlear implants?" The selected descriptors were cochlear implants, cochlear implants, quality of life, child and their synonyms, in the Portuguese, English and Spanish languages. Read More

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Staircase array of inclined refractive multi-lenses for large field of view pixel super-resolution scanning transmission hard X-ray microscopy.

J Synchrotron Radiat 2021 May 12;28(Pt 3):732-740. Epub 2021 Mar 12.

Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Baden-Württemberg, Germany.

Owing to the development of X-ray focusing optics during the past decades, synchrotron-based X-ray microscopy techniques allow the study of specimens with unprecedented spatial resolution, down to 10 nm, using soft and medium X-ray photon energies, though at the expense of the field of view (FOV). One of the approaches to increase the FOV to square millimetres is raster-scanning of the specimen using a single nanoprobe; however, this results in a long data acquisition time. This work employs an array of inclined biconcave parabolic refractive multi-lenses (RMLs), fabricated by deep X-ray lithography and electroplating to generate a large number of long X-ray foci. Read More

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Assessment of Outcomes of Immediately Loaded Dental Implants in Orofacial Cleft Patients: Protocol for a Single-Arm Clinical Trial.

JMIR Res Protoc 2021 May 5;10(5):e25244. Epub 2021 May 5.

GSR Institute of Craniomaxillofacial and Facial Plastic Surgery, Hyderabad, India.

Background: Orofacial cleft, one of the most common congenital deformities, presents with a plethora of defects, subjecting the patient to a multitude of treatments from a young age. Among the oral hard tissue problems, absence of a maxillary permanent tooth in the cleft region either due to congenital absence or extraction due to compromised prognosis is a common finding. Conventionally, the missing tooth is replaced using a removable or fixed partial denture; however, the treatment modality does not satisfactorily meet patient expectations. Read More

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Zwitterionic polydopamine coatings suppress silicone implant-induced capsule formation.

Biomater Sci 2021 May;9(9):3425-3432

Department of Plastic and Reconstructive Surgery, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea.

A synthetic zwitterionic dopamine derivative (ZW-DOPA) containing both catechol and amine groups was recently shown to exhibit excellent antifouling activity on marine surfaces. Here, we have extended these analyses to investigate the effects of ZW-DOPA coating on silicone implants. Successful formation of ZW-DOPA coatings on silicone implants was confirmed based on a combination of decreased static water contact angles on silicone implants, evidence of new peaks at 400. Read More

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Significance of site-specific radiation dose and technique for success of implant-based prosthetic rehabilitation in irradiated head and neck cancer patients-A cohort study.

Clin Implant Dent Relat Res 2021 May 4. Epub 2021 May 4.

Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany.

Background: Radiotherapy aggravates implant-based prosthetic rehabilitation in patients with head and neck cancer.

Purpose: To evaluate the impact of radiation dose at implant and parotid gland site for prosthetic rehabilitation.

Material And Methods: The retrospective study includes 121 irradiated head and neck cancer patients with 751 inserted implants. Read More

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Accuracy and deviation analysis of robot-assisted spinal implants:a retrospective overview of 105 cases and preliminary comparison to open freehand surgery in lumbar spondylolisthesis.

Int J Med Robot 2021 May 4. Epub 2021 May 4.

Department of Spine Surgery, the Affiliated Hospital of Qingdao University, Qingdao, China.

Background: Whether the accuracy of robot-assisted spinal screw placement is significantly higher than that of freehand and the source of robotic deviation remain unclear.

Methods: Clinical data of 105 patients who underwent robot-assisted spinal surgery was collected and screw accuracy was evaluated by computed tomography according to the modified Gertzbein-Robbins classification. Patients were grouped by percutaneous and open surgery. Read More

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Hard tissue dimensional changes following implant removal due to peri-implantitis: A retrospective study.

Clin Implant Dent Relat Res 2021 May 4. Epub 2021 May 4.

Department of Periodontology, Universitat Internacional de Catalunya, Barcelona, Spain.

Background: The current evidence regarding the alterations experienced by the alveolar ridge (hard tissue changes) after implant removal due to peri-implantitis is limited.

Purpose: To assess the hard tissue dimensional changes following implant removal due to peri-implantitis.

Material And Methods: Clinical records were examined to identify patients with implants that had to be removed due to a hopeless prognosis secondary to peri-implantitis due to expendability of peri-implantitis implants for functional reasons. Read More

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Surgery Start Time and Early Implant Failure: A Case-Control Study.

Clin Oral Implants Res 2021 May 4. Epub 2021 May 4.

Department of Periodontics, University of Iowa College of Dentistry, Iowa City, IA, USA.

Objective: To evaluate the influence of surgery start time (SST) and other patient- and therapy-related variables on the risk for early implant failure (EIF) in an academic setting.

Material And Methods: Data were extracted from the electronic health records of 61 patients who had at least one EIF and 140 age- and gender-matched, randomly selected, non-EIF controls. Bivariate and multivariable analyses were performed to identify relevant associations between EIF and different variables, such as SST. Read More

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Effect of previous implant failure on the prognosis of subsequent implants: a retrospective study.

Clin Oral Implants Res 2021 May 4. Epub 2021 May 4.

Department of Prosthodontics, Heidelberg University Hospital, University of Heidelberg, Heidelberg, Germany.

Objectives: To compare the long-term survival of dental implants placed in patients with and without a history of implant failure.

Material And Methods: Within a retrospective analysis, an experimental group was selected consisting of 59 patients with 137 implants placed after previous failure. The control group included 1072 patients with 2664 implants without previous failure. Read More

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Clinical performance of implant crowns with customized zirconia abutments. A prospective cohort study with a 4.5- to 8.8-year follow-up.

Clin Oral Implants Res 2021 May 4. Epub 2021 May 4.

Professor emeritus, Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Switzerland.

Objective: To assess the clinical and esthetic outcomes and patient satisfaction of screw-retained one-piece implant crowns fabricated with zirconia abutments after a 4.5- to 8.8-years follow-up. Read More

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Retinal Morpho-Functional Changes Following 0.19 mg Fluocinolone Acetonide Intravitreal Implant for Chronic Diabetic Macular Edema.

Adv Ther 2021 May 4. Epub 2021 May 4.

Università Cattolica del Sacro Cuore, Rome, Italy.

Purpose: To evaluate morpho-functional outcomes of the intravitreal fluocinolone acetonide (FAc) implant.

Methods: Retrospective, observational, single-center study. Primary endpoint was the mean change in central macular thickness (CMT) from baseline to month 1-3. Read More

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Mesenchymal stem cells and platelet-rich plasma-impregnated polycaprolactone-β tricalcium phosphate bio-scaffold enhanced bone regeneration around dental implants.

Int J Implant Dent 2021 May 5;7(1):35. Epub 2021 May 5.

Department of Oral & Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Korea.

Background: Finding a material that supports bone regeneration is the concern for many investigators. We supposed that a composite scaffold of poly(ε) caprolactone and β-tricalcium phosphate (PCL-TCP) would entail desirable characteristics of biocompatibility, bioresorbability, rigidity, and osteoconductivity for a proper guided bone regeneration. Furthermore, the incorporation of mesenchymal stem cells (MSCs) and platelet-rich plasma (PRP) would boost the bone regeneration. Read More

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