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https://www.readbyqxmd.com/read/29117828/dual-plating-technique-for-volar-rim-fracture-of-the-distal-radius-using-depuy-synthes-2-0-m-and-2-4-mm-locking-plates
#1
Yoshihiro Abe, Masahiro Suzuki, Hiromasa Wakita
BACKGROUND: To assess the surgical results of distal radius fractures with the involvement of a volar rim fragment using the DePuy-Synthes 2.0 mm and 2.4 mm locking plates. METHODS: Subjects were six women and one man of average age 57 years (range, 31-83 y) and a mean follow-up period of 9 months (range, 5-19 mo) with AO B3 (volar shearing) distal radius fractures. Time of the procedure, physical examination of wrist range of motion, grip strength compared with the contralateral healthy wrist, and radiographic evaluation (volar tilt, radial inclination, and ulnar variance) were evaluated...
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29098102/compression-of-the-femoral-vessels-by-a-pseudotumor-after-metal-on-metal-total-hip-arthroplasty
#2
Yasuaki Tamaki, Tomohiro Goto, Takahiko Tsutsui, Tomoya Takasago, Keizo Wada, Koichi Sairyo
Here we present a case of pseudotumor following total hip arthroplasty (THA) that resulted in a circulatory disturbance caused by compression of the femoral vasculature. A 63-year-old man presented with pain, swelling, and redness of the left leg 5 years after primary metal-on-metal THA using the AML-Plus stem, Pinnacle® acetabular cup, and 36 mm diameter Ultamet™ metal head system (DePuy Orthopaedics, Warsaw, IN). Enhanced computed tomography and magnetic resonance imaging revealed a large cystic lesion extending from the left hip anteriorly to the intrapelvic region and compressing the left femoral vessels...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29096930/long-term-radiographic-appearance-of-calcium-phosphate-synthetic-bone-grafts-after-surgical-treatment-of-tibial-plateau-fractures
#3
Alexander Hanke, Martin Bäumlein, Siegmund Lang, Boyko Gueorguiev, Michael Nerlich, Thomas Perren, Paavo Rillmann, Christian Ryf, Theodore Miclau, Markus Loibl
OBJECTIVES: Synthetic bone grafts (SBGs) are widely used to fill bone defects after fracture reduction. This study assessed the long-term resorption of two different calcium phosphate products (A=ChronOS™ inject and B=Norian(®) SRS(®); both DePuy Synthes, Oberdorf, Switzerland) used in the surgical treatment of tibial plateau fractures. DESIGN: Long-term clinical and radiologic follow-up of 52 patients after surgical treatment of intraarticular tibial plateau fractures augmented with SBGs...
October 19, 2017: Injury
https://www.readbyqxmd.com/read/29081013/emerging-technologies-in-flow-diverters-and-stents-for-cerebrovascular-diseases
#4
REVIEW
Michael Karsy, Jian Guan, Andrea A Brock, Anubhav Amin, Min S Park
PURPOSE OF REVIEW: Stents and flow diverters have revolutionized the treatment of cerebrovascular disease. Guglielmi coils, flexible microcatheters, and first-generation intracranial stents, such as Neuroform (Stryker Neurovascular) and Enterprise stents (Codman/DePuy-Synthes), have paved the way for the development of the Pipeline Embolization Device (PED) (ev3/Covidien/Medtronic) and other endovascular approaches. RECENT FINDINGS: This review discusses the historical development of flow diverter technologies from the PED to similar devices, such as the Surpass stent (Stryker Neurovascular), the Flow-Redirection Endoluminal Device (FRED; MicroVention, Inc...
October 28, 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/29072088/the-association-between-cement-type-and-the-subsequent-risk-of-revision-surgery-in-primary-total-hip-replacement
#5
Lea Trela-Larsen, Adrian Sayers, Ashley William Blom, Jason Crispin John Webb, Michael Richard Whitehouse
Background and purpose - To further improve the success of joint replacement surgery, attention needs to be paid to variations associated with improved or worsened outcomes. We investigated the association between the type of bone cement used and the risk of revision surgery after primary total hip replacement. Methods - We conducted a prospective study of data from the National Joint Registry for England and Wales between April 1, 2003 and December 31, 2013. 199,205 primary total hip replacements performed for osteoarthritis where bone cement was used were included...
October 26, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/29040124/highly-cross-linked-polyethylene-reduces-wear-and-revision-rates-in-total-hip-arthroplasty-a-10-year-double-blinded-randomized-controlled-trial
#6
RANDOMIZED CONTROLLED TRIAL
Peter A Devane, James Geoffrey Horne, Alexander Ashmore, Jonathon Mutimer, Woosung Kim, James Stanley
BACKGROUND: Highly cross-linked polyethylene (XLPE) was developed to address the problem of wear and osteolysis associated with metal-on-conventional ultra-high molecular weight polyethylene (UHMWPE) bearing surfaces. The purpose of this study was to compare in vivo wear rates and clinical and radiographic outcomes between XLPE and UHMWPE in a prospective double-blinded randomized controlled trial with a minimum of 10 years of follow-up. METHODS: We randomized 122 patients to receive either a conventional UHMWPE liner (Enduron; DePuy) or an XLPE liner (Marathon; DePuy)...
October 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29032308/comparison-of-mode-of-failure-between-primary-and-revision-total-knee-arthroplasties
#7
H Liang, J K Bae, C H Park, K I Kim, D K Bae, S J Song
INTRODUCTION: Cognizance of common reasons for failure in primary and revision TKA, together with their time course, facilitates prevention. However, there have been few reports specifically comparing modes of failure for primary vs. revision TKA using a single prosthesis. The goal of the study was to compare the survival rates, modes of failure, and time periods associated with each mode of failure, of primary vs. revision TKA. HYPOTHESIS: The survival rates, modes of failure, time period for each mode of failure, and risk factors would differ between primary and revision TKA...
October 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29019902/in-vitro-biomechanical-comparison-after-fixed-and-mobile-core-artificial-cervical-disc-replacement-versus-fusion
#8
COMPARATIVE STUDY
Jigang Lou, Yuanchao Li, Beiyu Wang, Yang Meng, Tingkui Wu, Hao Liu
In vitro biomechanical analysis after cervical disc replacement (CDR) with a novel artificial disc prosthesis (mobile core) was conducted and compared with the intact model, simulated fusion, and CDR with a fixed-core prosthesis. The purpose of this experimental study was to analyze the biomechanical changes after CDR with a novel prosthesis and the differences between fixed- and mobile-core prostheses.Six human cadaveric C2-C7 specimens were biomechanically tested sequentially in 4 different spinal models: intact specimens, simulated fusion, CDR with a fixed-core prosthesis (Discover, DePuy), and CDR with a mobile-core prosthesis (Pretic-I, Trauson)...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28971085/radiographic-evaluation-of-cementation-technique-using-polished-conical-triple-tapered-femoral-stem-in-hip-arthroplasty
#9
Ademir Antônio Schuroff, Mark Deeke, Marco Antônio Pedroni, Fernando Silva Lupselo, Rodrigo Ernesto Kunz, Alexandre Matos Lima
OBJECTIVE: To radiographically evaluate the quality of cementation and implantation technique using a polished, triple-tapered femoral stem in total hip arthroplasty (THA). METHOD: Retrospective study with radiographic evaluation of 86 hips in 83 patients who underwent to primary THA with the triple-tapered cemented femoral stem C-Stem (DePuy Orthopedics, Warsaw, Indiana). Cases with at least one-year of follow-up were included, and data related to preoperative, immediate postoperative, and late postoperative radiographic evolution were recorded...
2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28943180/cad-cam-plates-versus-conventional-fixation-plates-for-primary-mandibular-reconstruction-a-biomechanical-in%C3%A2-vitro-analysis
#10
Carsten Rendenbach, Kay Sellenschloh, Lucca Gerbig, Michael M Morlock, Benedicta Beck-Broichsitter, Ralf Smeets, Max Heiland, Gerd Huber, Henning Hanken
BACKGROUND: CAD/CAM reconstruction plates have become a viable option for mandible reconstruction. The aim of this study was to determine whether CAD/CAM plates provide higher fatigue strength compared with conventional fixation systems. MATERIAL AND METHODS: 1.0 mm miniplates, 2.0 mm conventional locking plates (DePuy Synthes, Umkirch, Germany), and 2.0 mm CAD/CAM plates (Materialise, Leuven, Belgium/DePuy Synthes) were used to reconstruct a polyurethane mandible model (Synbone, Malans, CH) with cortical and cancellous bone equivalents...
November 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28940776/influence-of-collars-on-the-primary-stability-of-cementless-femoral-stems-a-finite-element-study-using-a-diverse-patient-cohort
#11
Rami M A Al-Dirini, Daniel Huff, Ju Zhang, Thor Besier, John G Clement, Mark Taylor
For cementless femoral stems, there is debate as to whether a collar enhances primary stability and load transfer compared to collarless designs. Finite Element (FE) analysis has the potential to compare stem designs within the same cohort, allowing for subtle performance differences to be identified, if present. Subject-specific FE models of intact and implanted femora were run for a diverse cohort (21 males, 20 females; BMI 16.4-41.2 kg/m(2) , age 50-80 yrs). Collared and collarless versions of Corail(®) (DePuy Synthes, Warsaw, IN) were sized and positioned using an automated algorithm that aligns the femoral/stem axes, preserves the head-center location, and maximizes metaphyseal fit...
September 21, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28936610/tight-fitting-radial-head-prosthesis-does-stem-size-help-prevent-painful-loosening
#12
Pierre Laumonerie, Nicolas Reina, Claudia Gutierrez, Stephanie Delclaux, Meagan E Tibbo, Nicolas Bonnevialle, Pierre Mansat
INTRODUCTION: The most common reason for removal of well-fixed radial head prostheses is painful loosening. We hypothesised that short-stemmed prostheses, used for radial head arthroplasty, are not associated with an increased risk of implant loosening. METHODS: From 2002 to 2014, 65 patients were enrolled in a retrospective single-centre study. The radial head prostheses were classified as having either a long (30-mm) or short (16- to 22-mm) stem. The long-stemmed implants comprised 30 GUEPAR® DePuy Synthes (West Chester, PA, USA) and 20 Evolutive® Aston Medical (Saint-Etienne, France) devices; the short-stemmed implants comprised nine RECON and six STANDARD rHead® SBI-Stryker (Morrisville, PA, USA) devices...
September 21, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28888404/expert-tibial-nails-for-treating-distal-tibial-fractures-with%C3%A2-soft%C3%A2-tissue%C3%A2-damage-a-patient-series
#13
Zhenhai Wang, Yiheng Cheng, Dajiang Xin, Tong Liu, Wenqing Qu, Dan Wang, Yong Zhao, Jingjing Zhao
Distal tibial fractures with soft tissue damage are relatively difficult to treat. We assessed the outcomes of patients with these fractures treated with the Expert Tibial Nail(®) (DePuy Synthes, Raynham, MA) from March 2012 to December 2014. At 6 months postoperatively, the general health quality of patients was assessed using operative time, interval to return to work, American Orthopaedic Foot and Ankle Society ankle scale score, pain measured using a visual analog scale, and short-form health outcomes 36-item survey physical functioning and mental health dimension scores...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28854766/one-year-serial-follow-up-magnetic-resonance-imaging-study-of-rigidfix-for-femoral-fixation-in-anterior-cruciate-ligament-reconstruction
#14
Jung Ho Noh, Jae Woo Lee
Purpose: To assess graft slippage at the site of femoral fixation by follow-up magnetic resonance imaging (MRI) after anterior cruciate ligament (ACL) reconstruction with a four-strand autogenous hamstring tendon using RigidFix (DePuy Mitek). Materials and Methods: Twenty-one subjects diagnosed with ACL rupture underwent ACL reconstruction using hamstring autograft with the transtibial technique. RigidFix was used for femoral fixation and Intrafix and washer screw were used for tibial fixation...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28819609/combined-fluoroscopic-and-arthroscopic-detection-and-removal-of-a-foreign-body-lost-during-elective-shoulder-arthroscopy-a-case-report
#15
Uli Schmiddem, N Hawi, E M Suero, R Meller
INTRODUCTION: We report a case of a lost metal platelet from a radiofrequency ablation probe (VAPR VUE Radiofrequency System, Cool Pulse 90, DePuy, Synthes, Switzerland) in the shoulder joint during elective arthroscopic cuff repair. To the best of our knowledge, this kind of an incident during elective arthroscopy has not been described in the literature so far. In addition, we present an algorithm on how to deal with such an incident. CASE REPORT: A 69-year-old woman underwent an arthroscopic subacromial decompression and rotator cuff repair for a torn supraspinatus tendon...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28803815/patient-specific-contact-stress-does-not-predict-polyethylene-wear-rate-in-a-specific-pressfit-cup
#16
Georg Matziolis, Linda Krakow, Frank Layher, Klaus Sander, Joerg Bossert, Steffen Brodt
BACKGROUND: The most common reason for revision total hip arthroplasty remains polyethylene wear. Development dysplasia of the hip and revision situations requires a conscious compromise of implant position. The surgeon should know about the consequence on wear via a possible change in hip contact force. The objective of this study is to investigate whether annual wear is dependent on hip contact force. METHODS: Forty-five inserts (DuraLoc, DePuy) that were explanted in our department were included...
July 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28781915/cervical-artificial-disc-extrusion-after-a-paragliding-accident
#17
Tianyi Niu, Haydn Hoffman, Daniel C Lu
BACKGROUND: Cervical total disc replacement (TDR) is an established alternative to anterior cervical discectomy and fusion (ACDF) with excellent long-term outcomes and low failure rates. Cases of implant failure and migration are scarce and primarily limited to several years postoperatively. The authors report a case of anterior extrusion of a C4-C5 ProDisc-C (DePuy Synthes, West Chester, PA, USA) cervical artificial disc (CAD) 14 months after placement due to minor trauma. CASE DESCRIPTION: A 33-year-old female who had undergone C4-C5 CAD implantation presented with neck pain and spasm after experiencing a paragliding accident...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28750856/readability-of-patient-education-materials-from-the-web-sites-of-orthopedic-implant-manufacturers
#18
Meghan M Yi, Paul H Yi, Khalil I Hussein, Michael B Cross, Craig J Della Valle
BACKGROUND: Prior studies indicate that orthopedic patient education materials are written at a level that is too high for the average patient. The purpose of this study was to assess the readability of online patient education materials provided by orthopedic implant manufacturers. METHODS: All patient education articles available in 2013 from the web sites of the 5 largest orthopedic implant manufacturers were identified. Each article was evaluated with the Flesch-Kincaid (FK) readability test...
July 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28733366/the-available-evidence-on-demineralised-bone-matrix-in-trauma-and-orthopaedic-surgery-a-systematic-review
#19
J van der Stok, K A Hartholt, D A L Schoenmakers, J J C Arts
OBJECTIVES: The aim of this systematic literature review was to assess the clinical level of evidence of commercially available demineralised bone matrix (DBM) products for their use in trauma and orthopaedic related surgery. METHODS: A total of 17 DBM products were used as search terms in two available databases: Embase and PubMed according to the Preferred Reporting Items for Systematic Reviews and Meta Analyses statement. All articles that reported the clinical use of a DBM-product in trauma and orthopaedic related surgery were included...
July 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28670414/use-of-allogenic-mesenchymal-cellular-bone-matrix-in-anterior-and-posterior-cervical-spinal-fusion-a-case-series-of-21-patients
#20
Srikanth Naga Divi, Mark M Mikhael
STUDY DESIGN: Retrospective case series. PURPOSE: To report our early experience using allogenic mesenchymal cellular bone matrix (CBM) products in cervical spine fusion. OVERVIEW OF LITERATURE: Multi-level cervical fusions have historically yielded lower fusion rates than single level fusions, especially in patients with high risk medical comorbidities. At this time, significant literature in cervical fusion outcomes with this cellular allograft technology is lacking...
June 2017: Asian Spine Journal
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