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https://www.readbyqxmd.com/read/27478000/a-pilot-trial-comparing-the-tear-out-behavior-in-screw-sockets-and-cemented-polyethylene-acetabular-components-a-cadaveric-study
#1
R Möbius, S Schleifenbaum, R Grunert, S Löffler, M Werner, T Prietzel, N Hammer
BACKGROUND: The removal of well-fixed acetabular components following THA (total hip arthroplasty) is a difficult operation and could be accompanied by the loss of acetabular bone stock. The optimal method for fixation is still under debate. The aim of this pilot study was to compare the tear-out resistance and failure behavior between osseo-integrated and non-integrated screw cups. Furthermore, we examined whether there are differences in the properties mentioned between screw sockets and cemented polyethylene cups...
October 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/25858921/complicated-septic-arthritis-after-knee-arthroscopy-in-a-75-year-old-man-with-osteoarthritis-and-a-popliteal-cyst
#2
Antonios Papadopoulos, Theofilos S Karachalios, Constantinos N Malizos, Sokratis Varitimidis
A 75-year-old man presented in shock secondary to septic arthritis of the knee. The patient, with a known history of knee osteoarthritis, was treated elsewhere for mechanical locking symptoms and effusion with arthroscopic debridement, and developed septic arthritis, which disseminated to the leg and foot after a tear in the capsule, and a ruptured pyogenic popliteal cyst. Open debridement of the knee joint, and drainage of the abscesses of the leg and foot, were performed. Antibiotic-loaded cement beads were left in the residual space...
2015: BMJ Case Reports
https://www.readbyqxmd.com/read/25686676/increasing-pullout-strength-of-suture-anchors-in-osteoporotic-bone-using-augmentation-a-cadaver-study
#3
Volker Braunstein, Ben Ockert, Markus Windolf, Christoph M Sprecher, Wolf Mutschler, Andreas Imhoff, Lukas Karl Leo Postl, Peter Biberthaler, Chlodwig Kirchhoff
BACKGROUND: Rotator cuff tears are of increasing clinical impact in the physically active elderly patients. Recent research revealed, that a high percentage of these patients present with significant loss of bone mineral density at the insertion site of the rotator cuff, thereby compromising suture anchorage for operative repair. We therefore hypothesized that augmentation of suture anchors improves biomechanical properties in low bone quality. METHODS: 28 osteoporotic humeral heads were included in this biomechanical study...
March 2015: Clinical Biomechanics
https://www.readbyqxmd.com/read/25148925/suture-anchor-fixation-strength-with-or-without-augmentation-in-osteopenic-and-severely-osteoporotic-bones-in-rotator-cuff-repair-a-biomechanical-study-on-polyurethane-foam-model
#4
COMPARATIVE STUDY
Mehmet Serhan Er, Levent Altinel, Mehmet Eroglu, Ozgur Verim, Teyfik Demir, Halil Atmaca
BACKGROUND: The purpose of the present study was to compare the results of various types of anchor applications with or without augmentation in both osteopenic and severely osteoporotic bone models. METHODS: Two different types of suture anchors were tested in severely osteoporotic (SOP) and osteopenic polyurethane (PU) foam blocks using an established protocol. An Instron machine applied static loading parallel to the axis of insertion until failure, and the mean anchor failure strengths were calculated...
August 22, 2014: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/25052145/treatment-outcome-of-the-teeth-with-cemental-tears
#5
MULTICENTER STUDY
Hsueh-Jen Lin, Mei-Chi Chang, Shu-Hui Chang, Chen-Tsai Wu, Yi-Ling Tsai, Chih-Chia Huang, Shu-Fang Chang, Ya-Wen Cheng, Chiu-Po Chan, Jiiang-Huei Jeng
INTRODUCTION: A cemental tear is a special type of surface root fracture noted in combination with periodontal and/or periapical bony destruction. We hypothesized that clinical characteristics and treatment techniques may affect the prognosis of teeth with cemental tears. METHODS: Treatment outcome for the teeth with a cemental tear was assessed in a multicenter cemental tear study project. Of the 71 teeth with cemental tears, 38 teeth (53.5%) were extracted. The remaining 33 teeth (46...
September 2014: Journal of Endodontics
https://www.readbyqxmd.com/read/24784522/diagnosis-and-management-of-cemental-tear-a-case-report
#6
Hitesh Gupta, Abhinhay Puri, Saru Kumar
A 32-year-old man complained of swelling after an extraction in the vicinity of the left maxillary premolars. The occlusal surface of the first premolar showed no caries while the second premolar was covered with a crown. Radiographic examination revealed a thin radiolucent defect subgingivally below the cementodentinal junction on the distal aspect. During a review of medical history, the patient presented an extracted fragment that was sent for histopathological examination. A root canal was performed and the defect was closed with mineral trioxide aggregate followed by glass ionomer cement...
May 2014: General Dentistry
https://www.readbyqxmd.com/read/24692622/short-stem-uncemented-primary-reverse-shoulder-arthroplasty-clinical-and-radiological-outcomes
#7
S A Giuseffi, P Streubel, J Sperling, J Sanchez-Sotelo
Short uncemented humeral stems can preserve humeral bone stock and facilitate revision surgery but may be prone to malalignment or loosening, especially when used in reverse total shoulder replacement (TSR). We undertook a retrospective review of 44 patients with a mean age of 76 years (59 to 92) who underwent primary reverse TSR with a short uncemented humeral stem. There were 29 females. The indications for joint replacement included cuff tear associated arthropathy (33), avascular necrosis (six), post-traumatic arthritis (two), and inflammatory arthritis (three)...
April 2014: Bone & Joint Journal
https://www.readbyqxmd.com/read/24561176/clinical-and-radiographic-results-of-cementless-reverse-total-shoulder-arthroplasty-a-comparative-study-with-2-to-5%C3%A2-years-of-follow-up
#8
COMPARATIVE STUDY
J Michael Wiater, James E Moravek, Matthew D Budge, Denise M Koueiter, David Marcantonio, Brett P Wiater
BACKGROUND: Most studies of reverse total shoulder arthroplasty (RTSA) involve cemented humeral stems. To our knowledge, this is the first study to compare the results of cementless RTSA, using a porous-coated stem designed for uncemented fixation, with cemented RTSA. METHODS: A prospective database of patients undergoing RTSA was retrospectively reviewed for patients with a diagnosis of cuff tear arthropathy or severe rotator cuff deficiency with minimum 2-year follow-up...
August 2014: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/24252370/separation-of-harmful-impurities-from-refuse-derived-fuels-rdf-by-a-fluidized-bed
#9
B Krüger, A Mrotzek, S Wirtz
In firing systems of cement production plants and coal-fired power plants, regular fossil fuels are increasingly substituted by alternative fuels. Rising energy prices and ambitious CO2-reduction goals promote the use of alternative fuels as a significant contribution to efficient energy recovery. One possibility to protect energy resources are refuse-derived fuels (RDF), which are produced during the treatment of municipal solid, commercial and industrial waste. The waste fractions suitable for RDF have a high calorific value and are often not suitable for material recycling...
February 2014: Waste Management
https://www.readbyqxmd.com/read/24195195/oral-and-maxillofacial-pathology-case-of-the-month-cemental-tear-and-chronic-periodontitis
#10
Gary Blum, Jerry Bouquot, Samuel Dorn
No abstract text is available yet for this article.
June 2013: Texas Dental Journal
https://www.readbyqxmd.com/read/23919098/periprosthetic-shoulder-infection
#11
Vincenzo Franceschini, Claudio Chillemi
Shoulder arthroplasty is considered the most effective surgical procedure for endstage shoulder pain from different causes including osteoarthritis, cuff-tear arthropathy, trauma, and tumors. Although uncommon and less frequent than knee or hip periprosthetic infection, periprosthetic shoulder infection represents a devastating complication and, despite treatment, is associated with unsatisfactory results. The most commonly identified microorganisms in periprosthetic shoulder infections are Staphylococcus aureus, coagulase-negative Staphylococci and Propionibacterium acnes...
2013: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/23793841/-differential-indications-for-current-endoprosthesis-systems-of-the-shoulder
#12
E Wiedemann
Modern shoulder prostheses adapt to the size, inclination, posterior offset and retrotorsion of the shoulder anatomy. Typical implants are cup prostheses for surface replacement, stemless prostheses that anchor in metaphyseal bone, anatomical prostheses using stems of different lengths, and last but not least reverse prostheses. The main reasons for implantation of shoulder prostheses are primary osteoarthritis, posttraumatic and rheumatoid arthritis, avascular necrosis, arthritis of instability and cuff defect arthropathy...
July 2013: Der Orthopäde
https://www.readbyqxmd.com/read/23698951/cement-embolization-to-right-atrium-and-pulmonary-artery-after-percutaneous-vertebroplasty
#13
Samir Diab, Mohammad Diab
SESSION TYPE: DVT/PE/Pulmonary Hypertension Posters IIPRESENTED ON: Wednesday, October 24, 2012 at 01:30 PM - 02:30 PMPURPOSE: This particular complication of vertebroplasty calls for better awareness and care against such complication.METHODS: A 28-year male with 4-year history of ulcerative colitis was maintained on prednisolone, mesalazine and infiximab. He underwent cement vertebroplasty for severe lumbar spine osteoporosis, 24 hours after which he developed right pleuritic pain and dyspnea. Chest X-ray,Echocardiogram, Chest CT-Angiogram and Lab tests were performed...
October 1, 2012: Chest
https://www.readbyqxmd.com/read/23412251/ct-scan-evaluation-of-glenoid-component-fixation-a-prospective-study-of-27-minimally-cemented-shoulder-arthroplasties
#14
A Vidil, Ph Valenti, F Guichoux, J H Barthas
BACKGROUND: Glenoid component failure is the most common complication of total shoulder arthroplasty. It can be correlated with failure of the component itself to resist wear and deformation, failure of fixation or failure of the glenoid bone. Anchor Peg Glenoid component (Depuy®) seems to have a higher bone fixation in biomechanical canine model: it is a all-polyethylene, concave component with one circumferentially fluted, central, interference-fit peg and three small cemented peripheral pegs...
July 2013: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/23412244/how-to-deal-with-glenoid-type-b2-or-c-how-to-prevent-mistakes-in-implantation-of-glenoid-component
#15
Jean Kany, Denis Katz
BACKGROUND: Although TSA has been shown to significantly yield better outcomes than hemiarthroplasty, glenoid prosthesis loosening remains the most common complication. Inadequate primary fixation enables the glenoid component to move. In primary glenohumeral osteoarthritis (GHOA), glenoid involvement and proper morphology vary considerably. Postero-inferior glenoid hypoplasia could be associated with some degree of osteoarthritis. According to Walch, 24 % of glenoids in GHOA are type B2 or C (excessive posterior retroversion), which increases the challenge for the glenoid component fixation...
May 2013: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/23293576/new-design-of-a-cementless-glenoid-component-in-unconstrained-shoulder-arthroplasty-a-prospective-medium-term-analysis-of-143-cases
#16
D Katz, J Kany, P Valenti, P Sauzières, P Gleyze, K El Kholti
The uncemented glenoid implants in total anatomical shoulder arthroplasty are likely to be accused of problems like dissociations, secondary rotator cuff tear, and wear of polyethylene (PE). This work is a clinical and radiological prospective review of 143 cases of anatomical total shoulder arthroplasty using a new metal back uncemented glenoid implant (MB) in order to see if this new implant induces those complications. A total of 143 cases were operated between 2003 and 2011. In a first part, the whole series of 143 cases was radiologically studied in order to quantify the lateralisation induced by the MB implant...
January 2013: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/23116927/aseptic-glenoid-loosening-or-failure-in-total-shoulder-arthroplasty-revision-with-glenoid-reimplantation
#17
MULTICENTER STUDY
Nicolas Bonnevialle, Barbara Melis, Lionel Neyton, Luc Favard, Daniel Molé, Gilles Walch, Pascal Boileau
HYPOTHESIS AND BACKGROUND: Reimplantation of a new glenoid component for symptomatic glenoid failure after total shoulder arthroplasty (TSA) is a well-established surgical strategy. In case of aseptic glenoid loosening or failure, revision of TSA by reimplantation of a cemented glenoid implant would be a reliable therapeutic option. MATERIALS AND METHODS: This retrospective multicenter study included 42 TSAs with symptomatic failed glenoids revised by reimplantation of an all-polyethylene (PE), cemented glenoid component...
June 2013: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/23107145/midterm-results-of-a-total-shoulder-prosthesis-fixed-with-a-cementless-glenoid-component
#18
Fredy Montoya, Petra Magosch, Bastian Scheiderer, Sven Lichtenberg, Patricio Melean, Peter Habermeyer
BACKGROUND: The aim of this study was to evaluate the midterm results and complications of a total shoulder arthroplasty implanted with a metal-backed, bone-ingrowth glenoid component. MATERIALS AND METHODS: In total, 62 patients (65 shoulders) diagnosed with primary osteoarthritis were treated with total shoulder arthroplasty with a cementless glenoid component. The mean age was 66 years (range, 54-85 years). Fifty-three patients were evaluated after a mean of 64 months (range, 26-85 months)...
May 2013: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/23070221/footprint-reconstruction-in-a-rotator-cuff-tear-associated-cyst-of-the-greater-tuberosity-augmented-anchorage
#19
L K Postl, V Braunstein, R von Eisenhart-Rothe, C Kirchhoff
Tears of the rotator cuff (RC) complicated by bone cysts at the footprint might represent a challenge for the shoulder surgeon. This might be additionally aggravated in elderly patients with inferior bone quality due to osteopenia or osteoporosis. In this report we present a technique for open repair of RC tears by augmenting the cystic lesion at the greater tuberosity using bone void filler in combination with a double row anchor reconstruction technique. Despite disadvantageous position and size of the cyst, using this technique the footprint can be restored by obtaining an anatomical position of the supraspinatus tendon...
January 2013: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/23056160/regenerative-treatment-of-a-cemental-tear-using-enamel-matrix-derivatives-a-ten-year-follow-up
#20
Patrick R Schmidlin
A patient presented with chronic periapical periodontitis on tooth 45. The root canal was re-treated and a wide apical perforation was closed with MTA® as an apical plug. At reevaluation six month later, the tooth presented with increased mobility, bleeding on probing and probing pocket depths of 9 mm. Despite good periapical healing radio graphically, the tooth showed signs of localized marginal bone loss that was diagnosed as being due to a cemental fracture. The tooth was splinted, a muco-periostal flap was raised and the fragment of cementum was removed...
2012: Open Dentistry Journal
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