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https://www.readbyqxmd.com/read/27906843/comparison-of-resorbable-plating-systems-complications-during-degradation
#1
Dennis C Nguyen, Albert S Woo, Scott J Farber, Gary B Skolnick, Jenny Yu, Sybill D Naidoo, Kamlesh B Patel
INTRODUCTION: Several bioresorbable plating systems have become standard in pediatric craniosynostosis reconstruction. A comparison of these systems is needed to aid surgeons in the preoperative planning process. The authors aim to evaluate 1 institution's experience using Resorb-X by KLS Martin and Delta Resorbable Fixation System by Stryker (Stryker Craniomaxillofacial, Kalamazoo, MI). METHODS: A sample of patients with single-suture nonsyndromic craniosynostosis treated at St Louis Children's Hospital between 2007 and 2014 using either Resorb-X or Delta bioresorbable plating systems were reviewed...
November 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27881831/the-effect-of-suture-anchor-insertion-angle-on-calcaneus-pullout-strength-challenging-the-deadman-s-angle
#2
William M Weiss, Ramon P Saucedo, John D Robinson, Chung-Chieh Jason Lo, Randal P Morris, Vinod K Panchbhavi
: Background Refractory cases of Achilles tendinopathy amenable to surgery may include reattachment of the tendon using suture anchors. However, there is paucity of information describing the optimal insertion angle to maximize the tendon footprint and anchor stability in the calcaneus. The purpose of this investigation is to compare the fixation strength of suture anchors inserted at 90° and 45° (the Deadman's angle) relative to the primary compressive trabeculae of the calcaneus. Methods A total of 12 matched pairs of adult cadaveric calcanei were excised and potted to approximate their alignment in vivo...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27879518/three-month-evaluation-of-strut-healing-using-a-novel-optical-coherence-tomography-analytical-method-following-bioresorbable-polymer-everolimus-eluting-stent-implantation-in-humans-the-timeless-study
#3
Boris Vesga, Hector Hernandez, Miguel Moncada, Pawel Gasior, Sergio A H Leal, Antonio Dager, Camilo Arana, Juan A Delgado, Philippe Généreux, Akiko Maehara, Juan F Granada
AIMS: Bioresorbable polymer drug-eluting stent technologies have been considered to have the potential to enhance vascular healing by reducing polymer exposure to the vessel wall, potentially allowing the earlier discontinuation of dual antiplatelet therapy. At present, the early vascular healing response to this type of technologies is still unclear. PATIENTS AND METHODS: The TIMELESS study is a multicenter, prospective, single-arm study that enrolled real-world patients undergoing percutaneous coronary intervention...
November 22, 2016: Coronary Artery Disease
https://www.readbyqxmd.com/read/27859972/a-functionalized-cyclic-lactide-monomer-for-synthesis-of-water-soluble-poly-lactic-acid-and-amphiphilic-diblock-poly-lactic-acid
#4
Xiaojin Zhang, Yu Dai
Biodegradable and bioabsorbable poly(lactic acid)s are one of the most important biomedical materials. However, it is difficult to introduce the functional groups into poly(lactic acid)s in order to improve their hydrophilicity and degradation rate. Here the authors describe the synthesis of functionalized cyclic lactide monomer 3,6-bis(benzyloxymethyl)-1,4-dioxane-2,5-dione (BnLA) using an advanced synthetic route. Water-soluble hydroxyl-functionalized homopoly(lactic acid) (P(OH)LA) is synthesized via ring-opening polymerization (ROP) of BnLA, followed by a hydrogenolytic deprotection reaction...
November 18, 2016: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/27848240/delamination-of-novel-ultrathin-bioabsorbable-abluminal-polymer-of-platinum-chromium-everolimus-eluting-stent
#5
Yoshihide Fujimoto, Yoshio Kobayashi, Ken Kato, Masashi Yamaguchi
No abstract text is available yet for this article.
November 15, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27833771/magnesium-based-absorbable-metal-screws-for-intra-articular-fracture-fixation
#6
Roland Biber, Johannes Pauser, Markus Geßlein, Hermann Josef Bail
MAGNEZIX® (Syntellix AG, Hanover, Germany) is a biodegradable magnesium-based alloy (MgYREZr) which is currently used to manufacture bioabsorbable compression screws. To date, there are very few studies reporting on a limited number of elective foot surgeries using this innovative implant. This case report describes the application of this screw for osteochondral fracture fixation at the humeral capitulum next to a loose radial head prosthesis, which was revised at the same time. The clinical course was uneventful...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27815574/evaluation-of-a-bioabsorbable-self-expandable-vein-stent-base-made-of-poly-l-lactide-in-vitro-and-in-vivo
#7
Alexandra Liv Vest Løvdal, Sarah Calve, Shuo Yang, William Van Alstine, Christoph A Binkert, Kasper Klausen
PURPOSE: This study was designed to evaluate performance and tissue response to a self-expandable bioabsorbable vein stent-base cut from a tube with enhanced stiffness and strength in vitro and in vivo. METHODS: A diamond-shaped stent-base was cut from a sequential biaxially strained poly(L-lactide) (PLLA) tube for optimized performance. The performance of the stent-base was evaluated in a finite element analysis model, and validation was attempted in vitro through a cyclic flat-plate compression and radial force measurement...
November 4, 2016: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27815015/arthroscopic-anterior-cruciate-ligament-repair-for-proximal-anterior-cruciate-ligament-tears-in-skeletally-immature-patients-surgical-technique-and-preliminary-results
#8
Marco Bigoni, Diego Gaddi, Massimo Gorla, Daniele Munegato, Marco Pungitore, Massimiliano Piatti, Marco Turati
BACKGROUND: Anterior cruciate ligament (ACL) tears in children are increasingly common and present difficult treatment decisions due to the risk of growth disturbance. Although open primary ACL repair was abandoned in the historical literature, recent studies have suggested that there is a role for arthroscopic primary repair in patients with proximal tears. METHODS: This is a retrospective review of five consecutive patients aged 9.2years (range 8 to 10) who underwent suture anchor ACL reinsertion...
November 2, 2016: Knee
https://www.readbyqxmd.com/read/27807948/procedural-resources-utilization-and-clinical-outcomes-with-bioresorbable-everolimus-eluting-scaffolds-and-pt-cr-everolimus-eluting-stent-with-resorbable-abluminal-polymer-in-clinical-practice-a-randomized-trial
#9
Jose M de la Torre Hernandez, Tamara Garcia Camarero, Dae-Hyun Lee, Fermin Sainz Laso, Gabriela Veiga Fernandez, Tania Pino, Silvia Rubio, Pablo Legarra, Jorge R Valdivia, Javier Zueco Gil
OBJECTIVES: We sought to compare the procedural implications of using bioresorbable everolimus-eluting scaffolds (BVS) and Pt-Cr everolimus-eluting stent with abluminal bioabsorbable polymer (Synergy). BACKGROUND: There are important differences in the respective platforms, which could impact on procedural performance, complications and outcomes. METHODS: A prospective, randomized single center study including consecutive patients in stable clinical condition and with lesions amenable to be treated with BVS according to predefined criteria...
November 3, 2016: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/27787373/severe-cartilage-damage-from-a-broken-absorbable-screw-head-after-fixation-of-an-avulsion-fracture-of-the-tibial-attachment-of-the-posterior-cruciate-ligament-a-case-report
#10
Qiangqiang Li, Kai Song, Ye Sun, Haojun Zhang, Dongyang Chen, Qing Jiang
INTRODUCTION: The use of bioabsorbable interference screws has become popular for treatment of avulsion fractures of the posterior cruciate ligament (PCL). Complications are uncommon. We report a case of severe chondral damage caused by the early breakage of an absorbable screw head after fixation of an avulsion fracture of the tibial attachment of the PCL. The patient felt a sudden locking of the knee when getting off a car at 4 months after the PCL surgery. MRI revealed intraarticular migration of the head of the interference screw...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27782708/computer-aided-detection-of-intracoronary-stent-in-intravascular-ultrasound-sequences
#11
Francesco Ciompi, Simone Balocco, Juan Rigla, Xavier Carrillo, Josepa Mauri, Petia Radeva
PURPOSE: An intraluminal coronary stent is a metal mesh tube deployed in a stenotic artery during percutaneous coronary intervention (PCI), in order to prevent acute vessel occlusion. The identification of struts location and the definition of the stent shape is relevant for PCI planning and for patient follow-up. The authors present a fully automatic framework for computer-aided detection (CAD) of intracoronary stents in intravascular ultrasound (IVUS) image sequences. The CAD system is able to detect stent struts and estimate the stent shape...
October 2016: Medical Physics
https://www.readbyqxmd.com/read/27758142/evaluation-of-the-propel-%C3%A2-mini-sinus-implant-for-the-treatment-of-frontal-sinus-disease
#12
Griffin D Santarelli, Joseph K Han
Propel and Propel Mini sinus implants are mometasone furoate-coated bioabsorbable stents used as an adjunct in the management of chronic rhinosinusitis after endoscopic sinus surgery. The original sinus implant was deployed in the ethmoid sinuses to provide medialization of the middle turbinate, decrease scarring and mucosal adhesions, limit polyp regrowth, and reduce mucosal inflammation. A structurally smaller version of the Propel, the Propel Mini, was developed and now has been approved for endoscopic placement in the frontal sinuses...
November 6, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27723270/theranostic-bioabsorbable-bone-fixation-plate-with-drug-layered-double-hydroxide-nanohybrids
#13
Myung Hun Kim, Woojune Hur, Goeun Choi, Hye Sook Min, Tae Hyun Choi, Young Bin Choy, Jin-Ho Choy
A bioabsorbable polymeric bone plate enabled with both diagnostic and therapeutic functionalities (radiopacity and sustained drug release, respectively) is proposed. To this end, a drug-inorganic nanohybrid (RS-LDH) is examined as a theranostic agent by intercalating an anti-resorptive bone remodeling drug, risedronate (RS) into a layered double hydroxide (LDH) via an ion-exchange reaction. The RS-LDH is prepared as a sheet with a biodegradable polymer, poly(lactic-co-glycolic acid), and is then attached onto the clinically approved bioabsorbable bone plate to produce the theranostic plate...
November 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27709273/impact-of-a-novel-bioabsorbable-implant-on-radiation-treatment-planning-for-breast-cancer
#14
Michael J Cross, Gail S Lebovic, Joseph Ross, Scott Jones, Arnold Smith, Steven Harms
BACKGROUND: Techniques for accurately delineating the tumor bed after breast-conserving surgery (BCS) can be challenging. As a result, the accuracy, and efficiency of radiation treatment (RT) planning can be negatively impacted. Surgically placed clips or the post-surgical seroma are commonly used to determine target volume; however, these methods can lead to a high degree of uncertainty and variability. A novel 3-dimensional bioabsorbable marker was used during BCS and assessed for its impact on RT planning...
October 5, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27698643/foreign-body-reaction-and-osteolysis-in-dorsal-lunate-dislocation-repair-with-bioabsorbable-suture-anchor
#15
Ezequiel Ernesto Zaidenberg, Pablo Roitman, Gerardo Luis Gallucci, Jorge Guillermo Boretto, Pablo De Carli
Background: In recent years the use of biodegradable suture anchors for treating tendon and ligament pathology in hand surgery became popular. These materials are biocompatible, radiolucent, and load sharing, as they incrementally transfer load to surrounding bone during the resorption process. Despite these numerous advantages, polyglycolic (PGA) and poly-L-lactic acid (PLLA) have become a problem because of the potential risk for foreign body reactions. Methods: This article presents a case of an intraosseous foreign body reaction and massive osteolysis of the proximal carpal after dorsal lunate dislocation repair with bioabsorbable suture anchors...
September 2016: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/27692818/the-nidus-for-possible-thrombus%C3%A2-formation-insight-from-the-microenvironment-of-bioresorbable-vascular-scaffold
#16
Erhan Tenekecioglu, Eric K W Poon, Carlos Collet, Vikas Thondapu, Ryo Torii, Christos V Bourantas, Yaping Zeng, Yoshinobu Onuma, Andrew S H Ooi, Patrick W Serruys, Peter Barlis
No abstract text is available yet for this article.
October 24, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27682299/median-nerve-biodegradable-wrapping%C3%A2-clinical-outcome-of-10-patients
#17
S T Kokkalis, A F Mavrogenis, C Vottis, L Papatheodorou, P J Papagelopoulos, P N Soucacos, D G Sotereanos
Nerve wrap protectors are bioabsorbable synthetic materials made of collagen or extracellular matrix that provide a non-constricting encasement for injured peripheral nerves. They are designed to be used as an interface between the nerve and the surrounding tissue. After hydrated, they transform into a soft, pliable, nonfriable, easy to handle porous conduit. The wall of the nerve wrap has a longitudinal slit that allows to be placed around the injured nerve. Τhis article presents the surgical technique for median nerve neurolysis and nerve coverage using a collagen or an extracellular matrix nerve wrap protector in 10 patients with recurrent or persistent carpal -tunnel syndrome...
August 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/27674477/collaborative-contouring-combined-with-implantable-bioabsorbable-3d-fixed-array-tissue-marker-optimizes-lumpectomy-target-volume-for-accelerated-partial-breast-irradiation-and-lumpectomy-cavity-boost
#18
W H Hall, C Kaufman, K Huang
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27672017/effectiveness-of-headless-bioabsorbable-screws-for-fixation-of-the-scarf-osteotomy
#19
Jin Su Kim, Hun Ki Cho, Ki Won Young, Sang Young Lee, Ji Soo Kim, Kyoungtae Lee
BACKGROUND: Scarf osteotomy has been used in hallux valgus surgery due to its large fixation surface for screws and low postoperative complications. However, screws may cause skin irritation from their head, which may require an additional surgical procedure to remove. METHODS: This study included 115 patients (106 females and 9 males, 115 feet) who underwent hallux valgus correction with a scarf osteotomy using bioabsorbable screws between September 2010 and September 2012...
November 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27641507/papain-gel-containing-methylene-blue-for-simultaneous-caries-removal-and-antimicrobial-photoinactivation-against-streptococcus-mutans-biofilms
#20
Zenildo Santos Silva, Ying-Ying Huang, Lucas Freitas de Freitas, Cristiane Miranda França, Sergio Brossi Botta, Patrícia Aparecida Ana, Raquel Agnelli Mesquita-Ferrari, Kristianne Porta Santos Fernandes, Alessandro Deana, Cintia Raquel Lima Leal, Renato Araujo Prates, Michael R Hamblin, Sandra Kalil Bussadori
This study intended to evaluate the effects of a papain-gel with a red-light absorbing pigment (methylene blue - MB) to mediate photodynamic therapy (PDT) against Streptococcus mutans biofilms. The PapaMBlue was compared with free MB to generate reactive oxygen species using fluorescence probes (SOSG and HPF). PDT (660-nm light) was carried out against S. mutans biofilms grown on either plastic dishes or on collagen membrane and assayed by CFU, live-dead staining using confocal microscopy, transmission electron microscopy and H&E staining for collagen films...
September 19, 2016: Scientific Reports
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