91,293 results match your criteria implant surgery

The lingual foramen as a potential anatomical complication for dental implant placement in the anterior mandible.

J Oral Implantol 2021 May 4. Epub 2021 May 4.

Saveetha Dental College and Hospitals Prosthodontics 162 Poonamallee High Road INDIA Chennai Tamil nadu 600077 +91-98401-42716.

The purpose of this article is to assess the incidence of lingual foramina and associated vasculature in the anterior mandible to improve the understanding of their locations for dental implant placement. Intra-operative bleeding can be a significant complication. Pre-surgical assessment of the surgical site should be performed to identify anatomical landmarks. Read More

View Article and Full-Text PDF

Digital workflow for CAD-CAM custom abutments of immediate implants based on natural emergence profile of the tooth to be extracted.

J Oral Implantol 2021 May 4. Epub 2021 May 4.

University of Malta Associate Professort Dental Surgery Mater dei Hospital, MSD, Block 1, Level 2 MALTA Msida Msida 2090 551132662049 +35699729634 School of Dentistry, University of São Paulo.

The aim of this report is to present a digital workflow technique to design a customized abutment for provisionalization of an immediate-placed implant based on the natural emergence profile of the tooth to be extracted. The workflow involves the combination of intraoral and CBCT scans, from which three-dimensional (3D) reconstructions of soft tissue and alveolar bone, as well as of the tooth to be extracted are obtained and exported as STL files. The files are imported to a computer-aided design (CAD) software, in which a virtual wax-up and custom abutment design are performed considering the natural emergence profile of the patient's tooth prior to extraction. Read More

View Article and Full-Text PDF

Second-stage surgery in the posterior maxilla to enhance and thicken the keratinized gingiva - a case report.

J Oral Implantol 2021 May 4. Epub 2021 May 4.

Ludwig-Maximilians-Universitat Munchen Prosthodontics Goethestr. 70 GERMANY Munich Bavaria 93413 Ludwig-Maximilians-Universitat Munchen.

Purpose: Bone augmentation and implant placement often lead to a coronal shift of the soft tissue. Therefore replacement of the mucogingival border during second-stage surgery is required. Different techniques have been described in the literature. Read More

View Article and Full-Text PDF

Implant therapy in the rehabilitation of mandibular arteriovenous malformations.

J Oral Implantol 2021 May 4. Epub 2021 May 4.

Aix-Marseille Universite Faculte de Medecine Oral surgery 264 Rue Saint-Pierre FRANCE Marseille 13385 Aix-Marseille Universite Faculte de Medecine.

Purpose: Mandibular arteriovenous malformations are rare congenital malformations which require multidisciplinary care. Implant-supported rehabilitation of significant bone defect after embolization and resection is poorly described in the literature.

Clinical Report: We present the case of a 24 year-old patient with a right sided mandibular arteriovenous malformations diagnosed after massive hemorrhage and treated by embolization and resection surgery. Read More

View Article and Full-Text PDF

Implant-Prosthetic Rehabilitation of a Patient with Squamous Cell Carcinoma: A Case Report.

J Oral Implantol 2021 May 4. Epub 2021 May 4.

Atatürk University Faculty of Dentistry Prosthodontics Atatürk University Faculty of Dentistry Department of Prosthodontics TURKEY Erzurum Yakutiye 25240 Atatürk University Faculty of Dentistry.

Patients who have undergone maxillary resection procedures are rehabilitated with dental obturators or microvascular reconstruction. This case report describes implant-supported prosthetic rehabilitation of a patient who underwent maxillary resection due to squamous cell carcinoma. After maxillectomy surgery, the patient was rehabilitated using a surgical obturator for one week followed by an interim obturator until the surgical field was completely healed. Read More

View Article and Full-Text PDF

Assessment of accuracy of an imageless hand-held robotic-assisted system in component positioning in total knee replacement: a prospective study.

J Robot Surg 2021 May 4. Epub 2021 May 4.

Department of Orthopedics, Lokmanya Hospital, Nigdi, Pradhikaran, Pune, India.

In recent years, robotic technology is becoming more pervasive in joint arthroplasty. The role of robotics in joint replacement surgery is to bring precision and accuracy in bone preparation, implant positioning and soft tissue balancing. However, there is yet to be a study conducted to determine the accuracy of bone preparation done by a new robotic system. Read More

View Article and Full-Text PDF

Hybrid Implant and Grafted Fat Breast Augmentation: Designing the Pathway to a Future With Breasts Free of Silicone Breast Implants.

Aesthet Surg J 2021 May 4. Epub 2021 May 4.

Background: Fat grafting in breast augmentation surgery is becoming increasingly popular, allowing surgeons to fill the gaps that implant augmentation alone cannot. However, one of the current issues surrounding fat grafting is the lack of standardization. In this prospective study, we present our experience of fat grafting in 56 patients who had fat transfer together with silicone breast implants. Read More

View Article and Full-Text PDF

Interposition Technique for Pulmonary Valve Replacement.

World J Pediatr Congenit Heart Surg 2021 May;12(3):411-413

Division of Cardiovascular Surgery, 8404Children's National Health System, Washington, DC, USA.

Background: Stented bioprosthesis implant at surgical pulmonary valve replacement (PVR) ideally should be 25 to 27 mm to facilitate future percutaneous PVR. This often requires accommodating 35 to 37 mm diameter sewing ring in the pulmonary position and requires anterior patch augmentation of the right ventricular outflow tract (RVOT). We present a novel "interposition" technique of PVR that allows upsizing the valve without RVOT patch augmentation. Read More

View Article and Full-Text PDF

Effect of Guiding Sleeve Design on Intraosseous Heat Generation During Implant Site Preparation (In Vitro Study).

J Prosthodont 2021 May 4. Epub 2021 May 4.

Prosthodontics Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.

Purpose: To compare the effect of different designs of guiding sleeves on heat generation during implant surgery while using different cooling fluid temperatures.

Material And Methods: Temperature measurements were performed during guided implant sites preparation in bovine rib samples using two K- type thermocouples at 2mm and 8mm depths. Three groups were tested according to guiding sleeve design; conventional cylindrical sleeve, open C-shaped sleeve, and modified cylindrical sleeve. Read More

View Article and Full-Text PDF

[Polymethyl methacrylate cement coating of intramedullary implants : A new technique for revision surgery with the example of a temporary knee arthrodesis. Video article].

Orthopade 2021 May 3. Epub 2021 May 3.

Klinik und Poliklinik für Unfallchirurgie, Universitätsklinikum Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Deutschland.

Background: The coating of intramedullary rods with polymethyl methacrylate (PMMA) bone cement containing antibiotics ensures a high concentration of antibiotics locally and stability in fractures that are not yet consolidated. However, bone cement can detach when the implant is removed and remain in the medullary cavity of the long bones.

Case Report: After a periprosthetic knee infection, a 56-year-old patient suffered from a painful reinfection of Staphylococcus epidermidis. Read More

View Article and Full-Text PDF

[French Urological Association (AFU) guidelines for Peyronie's disease assessment and treatment].

Prog Urol 2021 Apr 30. Epub 2021 Apr 30.

Centre d'urologie du Polygone, Montpellier.

Introduction: Peyronie's disease is a common cause for consultation in urology. Many controversies surround its treatment. No French Guidelines have been published so far. Read More

View Article and Full-Text PDF

Despite higher revision rate, MoM large-head THA offers better clinical scores than HR: 14-year results from a randomized controlled trial involving 48 patients.

BMC Musculoskelet Disord 2021 Apr 30;22(1):400. Epub 2021 Apr 30.

Surgery Department, Hôpital Maisonneuve-Rosemont, Montreal University, 5415 Boulevard de l'Assomption, Montréal, Québec, H1T 2M4, Canada.

Background: The high failure rates of metal on metal (MoM) large diameter head total hip arthroplasty (LDH THA) and hip resurfacing (HR) prevented their long-term comparisons with regards to clinical outcome. Such knowledge would be important as ceramic LDH bearing is now available. With long-term follow-up, we investigated the difference in 1) patient-reported outcome measures (PROMs); 2) revision and adverse events rates, and 3) metal ion levels between MoM LDH THA and HR. Read More

View Article and Full-Text PDF

SEM and TEM for identification of capsular fibrosis and cellular behavior around breast implants - a descriptive analysis.

BMC Mol Cell Biol 2021 May 3;22(1):25. Epub 2021 May 3.

University Center for Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Regensburg and Caritas Hospital St. Josef, 93053, Regensburg, Germany.

Background: Capsular fibrosis (CF) is the most common long-term complication in implant-based breast augmentation. It is well accepted that the foreign body response (FBR) instigates the development of fibrotic disease. Our study aims to compare murine and human samples of CF and describe the cellular and extracellular matrix (ECM) composition using scanning and transmission electron microscopy (SEM and TEM). Read More

View Article and Full-Text PDF

Mastoid pressure dressing - Current practice amongst Canadian pediatric cochlear implant surgeons.

Int J Pediatr Otorhinolaryngol 2021 Apr 18;146:110720. Epub 2021 Apr 18.

University of British Columbia, Vancouver, British Columbia, Canada; BC Children's Hospital, Vancouver, British Columbia, Canada. Electronic address:

Objectives: Mastoid pressure dressing (MPD) has routinely been used following major ear surgery, such as cochlear implant (CI) surgery, to prevent postoperative wound complications. To date, controlled studies have suggested no difference in the incidence of wound complications following MPD use. However, there is a variation in the practice of MPD usage across pediatric CI surgeons. Read More

View Article and Full-Text PDF

Comparison of hybrid constructs pedicle screws with sublaminar polyester bands versus pedicle screws only treatment of neuromuscular scoliosis.

World Neurosurg 2021 Apr 30. Epub 2021 Apr 30.

Antalya Training And Research Hospital - Department of Orthopaedics and Traumatology.

Background: The choice of implants in neuromuscular scoliosis (NMS) surgery remains controversial. Sublaminar polyester bands (SPBs) seem to be a promising alternative implant. The purpose of current study was to compare clinical and radiological results of posterior instrumentation and fusion using hybrid constructs versus only pedicle screws for NMS treatment. Read More

View Article and Full-Text PDF

Multiple pharmacological inhibitors targeting the epigenetic suppressor enhancer of Zeste homolog 2 (EZH2) accelerate osteoblast differentiation.

Bone 2021 Apr 30:115993. Epub 2021 Apr 30.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Center for Regenerative Medicine, Mayo Clinic, Rochester, MN, USA; Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA. Electronic address:

Skeletal development and bone formation are regulated by epigenetic mechanisms that either repress or enhance osteogenic commitment of mesenchymal stromal/stem cells and osteoblasts. The transcriptional suppressive trimethylation of histone 3 lysine 27 (H3K27me3) hinders differentiation of pre-committed osteoblasts. Osteoblast maturation can be stimulated by genetic loss of the H3K27 methyltransferase Ezh2 which can also be mimicked pharmacologically using the classical Ezh2 inhibitor GSK126. Read More

View Article and Full-Text PDF

Metal-On-Metal versus Metal-On-Plastic Artificial Discs in Two-Level Anterior Cervical Disc Replacement: A Meta-Analysis with Follow-Up of 5 Years or More.

Spine J 2021 Apr 30. Epub 2021 Apr 30.

St. Joseph's University Medical Center, Department of Orthopaedic Surgery, 703 Main Street, Paterson, NJ 07503. Electronic address:

Background Context: Although highlighted in joint arthroplasty studies, long-term outcomes between differing biomaterial composites, such as metal-on-metal (MoM) and metal-on-plastic (MoP) in anterior cervical disc replacement (ACDR) have not been thoroughly investigated.

Purpose: The purpose of this study was to evaluate the patient-reported clinical outcomes, overall reoperation rates, complications, and rates of ASD of MoM versus MoP artificial discs in two-level ACDR for the treatment of cervical DDD.

Study Design/setting: Meta-analysis and systematic review PATIENT SAMPLE: 980 patients (442 MoM, 538 MoP) across 7 studies OUTCOME MEASURES: Patient reported clinical outcomes (NDI, VAS-n, VAS-a), overall reoperation rates, complications and rates of ASD METHODS: A systematic search strategy of three electronic databases (PubMed, CINAHL Plus, and SCOPUS) was conducted utilizing terms related to two-level ACDR. Read More

View Article and Full-Text PDF

Systemic antibiotic therapy as an adjunct to non-surgical peri-implantitis treatment: A single-blind RCT.

J Clin Periodontol 2021 May 3. Epub 2021 May 3.

Center for Dentistry and Oral Hygiene, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Aim: The aim of this single-blind RCT was to evaluate the adjunctive clinical and microbiological effect of systemic amoxicillin (AMX) plus metronidazole (MTZ) to non-surgical treatment of peri-implantitis.

Material And Methods: Patients (N = 62) with peri-implantitis were randomly assigned to receive full-mouth mechanical debridement and decontamination and use of chlorhexidine (control group) or combined with antibiotic therapy of AMX/MTZ (test group). Primary outcome was change in bleeding score from baseline (T ) to 3-month follow-up (T ). Read More

View Article and Full-Text PDF

Safety and efficacy outcomes at 1 year after MitraClip therapy for percutaneous mitral valve repair in patients with severe mitral regurgitation: the Egyptian experience.

Egypt Heart J 2021 May 3;73(1):42. Epub 2021 May 3.

Department of Cardiology, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt.

Background: Our aim was to assess safety and efficacy outcomes at 1 year after MitraClip for percutaneous mitral valve repair in patients with severe mitral regurgitation. Twenty consecutive patients with significant MR (GIII or GIV) were selected according to the AHA/ACC guidelines from June 2016 to June 2019 and underwent percutaneous edge-to-edge mitral valve repair using MitraClip with a whole 1 year follow-up following the procedure. The primary acute safety endpoint was a 30-day freedom from any of the major adverse events (MAEs) or rehospitalization for heart failure. Read More

View Article and Full-Text PDF

Association of interleukin-1 gene polymorphism and early crestal bone loss around submerged dental implants: A systematic review and meta-analysis.

J Indian Prosthodont Soc 2021 Apr-Jun;21(2):116-124

Department of Prosthodontics, King George's Medical University, Lucknow, Uttar Pradesh, India.

Aim: Early crestal bone loss (ECBL) has been observed regardless of the absence of possible etiologic factors for bone loss during the healing phase and before the second-stage implant surgery. The purpose of this systematic review and meta-analysis was to correlate the possible association of interleukin-1 (IL-1) gene polymorphisms and ECBL (bone loss before the second-stage surgery) around dental implants.

Settings And Design: Systematic review and meta-analysis following PRISMA guidelines. Read More

View Article and Full-Text PDF

Double versus single suture stenting to manage hypertensive spikes after glaucoma drainage device implantation.

Eur J Ophthalmol 2021 May 2:11206721211014386. Epub 2021 May 2.

Department of Neurosciences, Biomedicine and Movement, University Eye Clinic, University of Verona, AOUI - Borgo Roma Hospital, Verona, Veneto, Italy.

Purpose: To evaluate the safety and efficacy of double compared to single intraluminal suture stenting in reducing early postoperative hypertensive spikes (HS) and hypotony after Baerveldt glaucoma implant surgery.

Methods: For this retrospective study, we reviewed the medical charts of 60 patients (60 eyes) who underwent Baerveldt drainage device surgery between 2017 and 2019. Two groups were formed according to whether a single suture stent was placed within the tube (5-0 polypropylene, 30 eyes, group 1) or a double suture (5-0 and 6-0 polypropylene, 30 eyes, group 2). Read More

View Article and Full-Text PDF

Efficacy and safety data for the Ab interno XEN45 gel stent implant at 3 Years: A retrospective analysis.

Eur J Ophthalmol 2021 May 2:11206721211014381. Epub 2021 May 2.

Department of Ophthalmology, Mid and South Essex NHS Foundation Trust, Southend-on-Sea, UK.

Purpose: To report efficacy and safety measures of the XEN45 gel stent at 36 months in the UK National Health Service setting.

Methods: Retrospective non-comparative audit of the records of patients who underwent XEN45 implantation between June 2015 and May 2017 was performed. Main outcome measures were intraocular pressure and number of antihypertensive medications used. Read More

View Article and Full-Text PDF

Digital Workflow for Full-Arch Immediate Implant Placement Using a Stackable Surgical Guide Fabricated Using SLM Technology.

J Prosthodont 2021 May 2. Epub 2021 May 2.

Division of Restorative Dental Sciences, Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman City, UAE.

The failing dentition of partially edentulous individuals may be used as an initial reference for stackable restrictive surgical guides during full-arch immediate implant placement. The stackable guide option derived from a digital workflow increases the predictability of the performance of bone reduction, immediate implant placement, and immediate loading of provisional implant-supported fixed dental prostheses. The present paper aims to report a practical approach to design and produce a metal framework with occlusal rests to facilitate the use of a tooth-supported surgical guide when full-arch immediate implant placement is indicated in patients with failing dentition. Read More

View Article and Full-Text PDF

Can a Peritoneal Conduit Become an Artery?

EJVES Vasc Forum 2020 13;49:23-29. Epub 2020 Oct 13.

Institute for Circulation and Imaging (ISB) at the Norwegian University of Science and Technology (NTNU), Trondheim, Norway.

Objective: Current vascular grafts all have limitations. This study examined peritoneum as a potential graft material and the transfer of peritoneum into a functional artery like conduit after end to end anastomosis into the common carotid artery of sheep. The aim was to investigate whether implantation of a peritoneal tube into the arterial tree results in a structure with function, histological findings, and gene expression like an artery, and whether such arterialisation occurs through a conversion of the phenotype of peritoneal cells or from host cell migration into the implant. Read More

View Article and Full-Text PDF
October 2020

Use of the SIGN IM nail system to stabilize tibiotalocalcaneal arthrodesis in two African hospital settings.

OTA Int 2020 Dec 26;3(4):e088. Epub 2020 Oct 26.

Resurgens Orthopaedics, Atlanta, Georgia.

Objectives: To determine the effectiveness and describe the technique of using the Surgical Implant Generation Network (SIGN) nail to augment tibiotalocalcaneal (TTC) arthrodesis in the developing world.

Design: Retrospective review of the SIGN database and description of surgical technique.

Setting: Two centers in rural Kenya, East Africa. Read More

View Article and Full-Text PDF
December 2020

Dual mini-fragment plate fixation for Neer type-II and -V distal clavicle fractures.

OTA Int 2020 Sep 14;3(3):e078. Epub 2020 Aug 14.

Department of Orthopaedic Surgery, Stanford University Medical Center, Redwood City, CA.

Contemporary methods for open reduction and internal fixation of displaced distal clavicle fractures have excellent rates of union and high rates of reoperation for symptomatic implant removal. The authors describe their preferred surgical technique and case series of patients with Neer Type-II and -V distal clavicle fractures treated with lower profile dual mini-fragment plates using interdigitating screws placed into the distal segment to enhance fixation. Read More

View Article and Full-Text PDF
September 2020

The infected fracture: can we agree on standard definitions?

David J Hak

OTA Int 2020 Mar 23;3(1):e057. Epub 2020 Mar 23.

Hughston Orthopedic Trauma Surgeons, Central Florida Regional Hospital, Sanford, FL. University of Central Florida, Orlando, FL.

A precise definition of infection after fracture fixation is essential for the evaluation of published research data and for the future establishment of uniform treatment concepts. Recently, a multidisciplinary expert panel has developed a consensus definition that includes 4 confirmatory criteria for infection following fracture fixation. These criteria are: Fistula, sinus, or wound breakdown; purulent drainage or deep purulence at surgery; positive cultures from at least 2 separate deep tissue/implant specimens taken during an operative intervention; and microorganisms in deep tissue specimens confirmed by histopathological staining. Read More

View Article and Full-Text PDF

Robotic assisted fixation of sacral fractures: A pilot study.

OTA Int 2019 Dec 6;2(4):e046. Epub 2019 Dec 6.

Department of Orthopaedics, Hadassah Hebrew University Medical Center, Jerusalem, Israel.

Objectives: Sacral fractures that require fixation are a challenge for the orthopaedic surgeon. Due to anatomical consideration, implant insertion is not risk free, and requires a steep learning curve. A robotic system has been successfully used in pedicle screws insertion and can be also used for iliosacral screws. Read More

View Article and Full-Text PDF
December 2019

The utility of the angled blade plate in hip fracture nonunion treatment: A report of three cases and review of the literature.

OTA Int 2019 Dec 2;2(4):e041. Epub 2019 Aug 2.

Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic, Cleveland, OH.

Objectives: We report the radiographic and clinical outcome of patients treated with an angled blade plate (ABP) for hip fracture nonunion. We also provide a review of the literature on joint preserving treatment approaches to hip fracture nonunions.

Design: Retrospective, case series. Read More

View Article and Full-Text PDF
December 2019

Skin deep: Cutaneous manifestation of PIP implant rupture.

JPRAS Open 2021 Sep 19;29:10-16. Epub 2021 Mar 19.

Department of Plastic and Reconstructive Surgery, Cork University Hospital, Ireland.

PIP (Poly Implant Prothèse, France) implants were readily employed for breast reconstruction until withdrawn from the market in 2010. These implants have an early and increased risk of rupture compared to non-PIP implants. This report outlines a significant cutaneous manifestation of PIP-implant rupture not previously described in the literature. Read More

View Article and Full-Text PDF
September 2021