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Prosthetic AND Fracture

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https://www.readbyqxmd.com/read/30092305/clinical-outcome-and-risk-factors-for-failure-in-late-acute-prosthetic-joint-infections-treated-with-debridement-and-implant-retention
#1
Marjan Wouthuyzen-Bakker, Marine Sebillotte, Jose Lomas, Adrian Taylor, Eva Benavent Palomares, Oscar Murillo, Javad Parvizi, Noam Shohat, Javier Cobo Reinoso, Rosa Escudero Sánchez, Marta Fernandez-Sampedro, Eric Senneville, Kaisa Huotari, José Maria Barbero Allende, Joaquín Garcia-Cañete, Jaime Lora-Tamayo, Matteo Carlo Ferrari, Danguole Vaznaisiene, Erlangga Yusuf, Craig Aboltins, Rihard Trebse, Mauro José Salles, Natividad Benito, Andrea Vila, Maria Dolores Del Toro, Tobias Siegfried Kramer, Sabine Petersdorf, Vicens Diaz-Brito, Zeliha Kocak Tufan, Marisa Sanchez, Cédric Arvieux, Alex Soriano
OBJECTIVES: Debridement, antibiotics and implant retention (DAIR) is the recommended treatment for all acute prosthetic joint infections (PJI), but its efficacy in patients with late acute (LA) PJI is not well described. METHODS: Patients diagnosed with LA PJI between 2005 and 2015 were retrospectively evaluated. LA PJI was defined as the development of acute symptoms (≤ 3 weeks) occurring ≥ 3 months after arthroplasty. Failure was defined as: i) the need for implant removal, ii) infection related death, iii) the need for suppressive antibiotic therapy and/or iv) relapse or reinfection during follow-up...
August 6, 2018: Journal of Infection
https://www.readbyqxmd.com/read/30090113/effect-of-cosmetic-ceramics-on-fracture-toughness-of-all-ceramic-restorations
#2
Sibel Cetik, Marion Vincent, Ramin Atash
Objectives: The use of zirconia as a framework for prosthetic restorations is increasing due to its favorable mechanical properties. Zirconia also has remarkable aesthetic properties when used as a framework and covered with a layer of cosmetic ceramic. The aim of this study was to compare the fracture toughness of three types of aesthetic ceramics, namely VITA VM®9, ceraMotion® Zr, and IPS e.max® Ceram. Materials and Methods: Three groups of aesthetic ceramics (n=10) were subjected to three-point bending tests...
May 2018: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/30074512/instability-in-reverse-total-shoulder-arthroplasty
#3
Jonathan Chae, Matthew Siljander, J Michael Wiater
Recently, indications for reverse total shoulder arthroplasty have expanded to include glenohumeral arthritis, rotator cuff arthropathy, irreparable rotator cuff tears, complex proximal humerus fractures, sequelae of trauma, and failed shoulder prostheses. Dislocation is a common complication, with rates ranging from 1.5% to 31%. The literature pertaining to management of instability in reverse total shoulder arthroplasty is scanty. Assessment of the patient and biomechanical and surgical factors is critical in determining the best course of treatment...
August 1, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/30073215/restoration-of-discolored-endodontically-treated-anterior-teeth-a-minimally-invasive-chemomechanical-approach
#4
Filippo Del Curto, Giovanni Tommaso Rocca, Ivo Krejci
In the case of discolored devitalized anterior teeth, several treatments are available to enhance the esthetic outcome, from noninvasive external/internal bleaching to freehand resin composites and more complex prosthetic solutions such as veneers or full crowns. Innovative computer-aided design/computer-aided manufacturing (CAD/CAM) chairside technologies and the introduction of new industrially polymerized composite resin blocks coupled with modern adhesive strategies have reduced both biological and financial costs compared to the classic post-core-crown approach...
2018: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/30056097/risk-factors-associated-with-revision-for-prosthetic-joint-infection-after-hip-replacement-a-prospective-observational-cohort-study
#5
Erik Lenguerrand, Michael R Whitehouse, Andrew D Beswick, Setor K Kunutsor, Ben Burston, Martyn Porter, Ashley W Blom
BACKGROUND: The risk of prosthetic joint infection (PJI) is influenced by patient, surgical, and health-care factors. Existing evidence is based on short-term follow-up. It does not differentiate between factors associated with early onset caused by the primary intervention from those associated with later onset more likely to result from haematogenous spread. We aimed to assess the overall and time-specific associations of these factors with the risk of revision due to PJI after primary total hip replacement...
July 25, 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/30037147/smart-injectable-self-setting-monetite-based-bioceramics-for-orthopedic-applications
#6
Naresh Koju, Prabaha Sikder, Bipin Gaihre, Sarit B Bhaduri
The present study is the first of its kind dealing with the development of a specific bioceramic which qualifies as a potential material in hard-tissue replacements. Specifically, we report the synthesis and evaluation of smart injectable calcium phosphate bone cement (CPC) which we believe will be suitable for various kinds of orthopedic and spinal-fusion applications. The smart nature of this next generation orthopedic implant is attained by incorporating piezoelectric barium titanate (BT) particles into monetite-based (dicalcium phosphate anhydrous, DCPA) CPC composition...
July 22, 2018: Materials
https://www.readbyqxmd.com/read/30034886/application-of-immediate-dentoalveolar-restoration-in-alveolus-compromised-with-loss-of-immediate-implant-in-esthetic-area
#7
Rafael de Lima Franceschi, Luciano Drechsel, Guenther Schuldt Filho
In the reported clinical case, the immediate dentoalveolar restoration (IDR) technique was applied to reconstruct the buccal bone wall, with autogenous graft of the maxillary tuberosity, which had been lost due to a root fracture, and to provide the necessary bone substrate for the installation of an implant and its provisioning. One of the greatest risks inherent in the survival of immediate implants is the maintenance of their stability during the healing period. In this case, due to a mechanical trauma in sports activity in the first postoperative month, there was a total failure in the osseointegration process, confirmed by tomographic examination of both the implant and the bone graft...
2018: Case Reports in Dentistry
https://www.readbyqxmd.com/read/30024989/comparative-in-vitro-study-of-implant-supported-restorations-implant-abutment-complex-with-and-without-prosthetic-finishing-line
#8
Rubén Agustín-Panadero, Ana Roig-Vanaclocha, Antonio Fons-Font, María Fernanda Solá-Ruíz
PURPOSE: The aim of this study was to evaluate the mechanical behavior of implant-supported cemented restorations placed on two types of abutment design, with and without a prosthetic finish line, evaluating fracture resistance and the type of fracture produced in the abutment-crown complex. MATERIALS AND METHODS: Eighty zirconia restorations supported by tapered implants were divided into two groups: group I, with 40 zirconia crowns cemented onto individualized zirconia abutments with a chamfered finish line (1 mm deep); and group II, with 40 zirconia crowns cemented onto individualized zirconia abutments without a finish line...
July 2018: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/30013892/prosthesis-retention-after-an-infected-hip-prosthesis-hip-fractures-versus-primary-total-hip-prosthesis-data-from-1998-2015
#9
Lieke M A de Vries, William C Neve, Jeroen Steens
Background : A prosthetic joint infection (PJI) is a serious complication and specifically a burden for patients after hip fracture surgery, as they are mostly frail elderly patients with multiple comorbidities. Since treatment protocols are lacking there is a need to evaluate current practice. Aim: To evaluate the difference in prosthesis retention after an infected primary total hip replacement (THR) compared to PJI after hip prosthesis surgery performed for a hip fracture. Methods: We retrospectively collected data of patients who developed PJI after primary THR or after hip fracture surgery (THR or hemiarthroplasty) in the Westfriesgasthuis Hospital between 1998 and 2015...
2018: Journal of Bone and Joint Infection
https://www.readbyqxmd.com/read/29998133/custom-made-direct-metal-laser-sintering-titanium-subperiosteal-implants-a-retrospective-clinical-study-on-70-patients
#10
Mauro Cerea, Giorgio Andrea Dolcini
Purpose: To present a digital technique for the fabrication of custom-made subperiosteal implants and to report on the survival and complication rates encountered when using these fixtures. Methods: The data used for this retrospective clinical study were derived from the medical records of five different private dental practices. Inclusion criteria were patients over the age of 60, treated with custom-made direct metal laser sintering (DMLS) titanium subperiosteal implants (Eagle-Grid®, BTK, Dueville, Vicenza) during a two-year period (2014-2015) and restored with fixed restorations; all enrolled patients needed to have complete pre- and postoperative clinical and radiographic documentation, with at least 2 years of follow-up...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29995178/hemiarthroplasty-for-proximal-humerus-fractures-with-conservation-of-the-whole-humeral-head-as-autograft-does-it-improve-greater-tuberosity-healing
#11
Levon Doursounian, Julien Gaillard, Adeline Cambon-Binder, David Zbili, Alain Sautet
PURPOSE: Hemiarthroplasty (HA) for proximal humerus fracture (PHF) is associated with tuberosity complications like migration, non-union, and resorption. In order to improve the rate of consolidation of the greater tuberosity (GT), we have developed a hollow humeral head prosthesis in which the whole humeral head is inserted and used as autograft. This study is designed to evaluate the consolidation rate of the GT with this device. METHOD: Twenty-two patients at mean age of 68 were treated between 2015 and 2017 for four-part fractures, fracture-dislocations, and head-split fractures with HA including the bony humeral head...
July 11, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29990602/patellar-complications-after-total-knee-arthroplasty
#12
REVIEW
Sophie Putman, Florian Boureau, Julien Girard, Henri Migaud, Gilles Pasquier
Patellar complications are a source of poor total knee arthroplasty (TKA) outcomes that can require re-operation or prosthetic revision. Complications can occur with or without patellar resurfacing. The objective of this work is to answer six questions. (1) Have risk factors been identified, and can they help to prevent patellar complications? Patellar complications are associated with valgus, obesity, lateral retinacular release, and a thin patella. Selecting a prosthetic trochlea that will ensure proper patellar tracking is important...
July 7, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29939871/amputation-outcomes-in-congenital-pseudarthrosis-of-the-tibia
#13
David E Westberry, Ashley M Carpenter, Jocelyn Tisch, Linda I Wack
BACKGROUND: Successful radiographic union in the treatment of congenital pseudarthrosis of the tibia (CPT) may be complicated by persistent pain, recurrent fracture, and poor function necessitating further intervention, including amputation. The long-term functional, radiographic, and clinical outcomes of patients who have undergone amputation as treatment for CPT are unknown. METHODS: A retrospective study of patients with a diagnosis of CPT secondary to neurofibromatosis and eventual treatment with amputation were included...
June 22, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29934280/instability-after-reverse-total-shoulder-arthroplasty
#14
Emilie V Cheung, Eric J Sarkissian, Alex Sox-Harris, Garet C Comer, Jason R Saleh, Robert Diaz, John G Costouros
BACKGROUND: This study evaluated patients with and without a prosthetic dislocation after reverse total shoulder arthroplasty (RTSA) to identify risk factors for instability. METHODS: Dislocation and nondislocation cohorts were established for analysis in 119 patients who had undergone RTSA at our institution between 2011 and 2014. Preoperative history and parameters pertaining to RTSA design were evaluated for correlation with instability. A logistic regression model was used to analyze independent predictors...
June 19, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29930375/are-fibre-posts-associated-with-the-occurrence-of-prosthetic-complications
#15
Natacha Reis, Marco Bergamini, Thamar Silvestre, Analia Veitz-Keenan
Data sourcesThe Pubmed, Evidence-Based Dentistry, BMJ Clinical Evidence, EmbaseDynamed, and www.opengrey.eu databases and manual search of reference lists.Study selectionRandomised clinical trials (RCTs) were accepted if they had: participants with no periodontal disease and teeth restored with SCs or FDPs and compared fibre posts and other prosthetic systems and evaluated the prosthetic complications with a minimum observational period of 36 months.Data extraction and synthesisTitles and abstracts were evaluated independently by two reviewers, any disagreement was discussed with a third reviewer...
June 2018: Evidence-based Dentistry
https://www.readbyqxmd.com/read/29929685/pre-operative-planning-for-fracture-fixation-using-locking-plates-device-configuration-and-other-considerations
#16
Alisdair R MacLeod, Pankaj Pankaj
Most locked plating failures are due to inappropriate device configuration for the fracture pattern. Several studies cite screw positioning variables such as the number and spacing of screws as responsible for occurrences of locking plate breakage, screw loosening, and peri-prosthetic re-fracture. It is also widely accepted that inappropriate device stiffness can inhibit or delay healing. Careful preoperative planning is therefore critical if these failures are to be prevented. This study examines several variables which need to be considered when optimising a locking plate fixation device for fracture treatment including: material selection; screw placement; the effect of the fracture pattern; and the bone-plate offset...
June 2018: Injury
https://www.readbyqxmd.com/read/29926148/osteoarthritis-is-associated-with-increased-failure-of-proximal-femoral-fracture-fixation
#17
Charles A Gallagher, Christopher W Jones, Lara Kimmel, Christopher Wylde, Anthony Osbrough, Max Bulsara, Kathryn Hird, Piers Yates
PURPOSE: The purpose of this study was to evaluate whether the presence of hip osteoarthritis at the time of hip fracture increases treatment failure rates when using either a sliding hip screw (SHS) or proximal femoral nail (PFN) for fracture fixation. METHODS: A retrospective study of a consecutive series of 455 women and 148 men (median age, 83.8 years) treated with SHS or PFN was performed. Osteoarthritis was evaluated based on pre-operative radiographs using the Kellgren and Lawrence grading system...
June 20, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29849332/ultrasound-guided-femoral-nerve-block-to-facilitate-the-closed-reduction-of-a-dislocated-hip-prosthesis
#18
Edward Carlin, Brendon Stankard, Ashley Voroba, Mathew Nelson
Prosthetic hip dislocation is a common but unfortunate complication in patients who have undergone total hip arthroplasty. Successful closed reduction in the emergency department leads to a reduced length of stay and rate of hospitalization.1,2 The use of regional anesthesia by femoral nerve block represents a novel approach for controlling pain in patients with hip pathologies.3 Ultrasound-guided approaches have been used with great success for controlling pain in patients with hip fractures.4,5 Here we report the case of a 90-year-old male who presented with a dislocated hip prosthesis, which was subsequently corrected with closed reduction following delivery of regional anesthesia to the femoral nerve under ultrasound guidance...
November 2017: Clinical practice and cases in emergency medicine
https://www.readbyqxmd.com/read/29808747/patient-claims-in-prosthetic-hip-infections-a-comparison-of-nationwide-incidence-in-sweden-and-patient-insurance-data
#19
Piotr Kasina, Anders Enocson, Viktor Lindgren, Lasse J Lapidus
Background and purpose - Patients in Sweden are insured against avoidable patient injuries. Prosthetic joint infections (PJIs) resulting from intraoperative contamination are regarded as compensable by the Swedish public insurance system. According to the Patient Injury Act, healthcare personnel must inform patients about any injury resulting from treatment and the possibility of filing a claim. To analyze any under-reporting of claims and their outcome, we investigated patients' claims of PJI in a nationwide setting Patients and methods - The national cohort of PJI after primary total hip replacement, initially operated between 2005 and 2008, was established through cross-matching of registers and review of individual medical records...
August 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29807959/comparative-evaluation-of-fracture-strength-of-different-types-of-composite-core-build-up-materials-an-in-vitro-study
#20
Srinivasa Gowda, Dilip D Quadras, Shetty R Sesappa, G R Ramakrishna Maiya, Lalit Kumar, Dinraj Kulkarni, Nitu Mishra
AIM: The aim of the study was to evaluate the fracture strength of three types of composite core build-up materials. The objectives were to study and evaluate the fracture strength and type of fracture in composite core build-up in restoration of endodonti-cally treated teeth with or without a prefabricated metallic post. MATERIALS AND METHODS: A total of 60 freshly extracted mandibular premolars free of caries, cracks, or fractures were end-odontically treated and restored with composite core build-up with prefabricated metallic posts cemented with resin luting cement (group I) and without a post (group II)...
May 1, 2018: Journal of Contemporary Dental Practice
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