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https://www.readbyqxmd.com/read/28443287/brachial-approach-as-an-alternative-technique-of-fibrin-sheath-removal-for-implanted-venous-access-devices
#1
Charalampos Sotiriadis, Steven David Hajdu, Francesco Doenz, Salah D Qanadli
Implanted venous access device (IVAD) late dysfunction is commonly caused by fibrin sheath formation. The standard method of endovascular fibrin sheath removal is performed via the femoral vein. However, it is not always technically feasible and sometimes contraindicated. Moreover, approximately 4-6 h of bed rest is necessary after the procedure. In this article, we describe an alternative method of fibrin sheath removal using the brachial vein approach in a young woman receiving chemotherapy for breast cancer...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28442856/functional-outcome-of-fixation-of-complex-intra-articular-distal-radius-fractures-with-a-variable-angle-distal-radius-volar-rim-plate
#2
M Spiteri, W Ng, J Matthews, D Power
Aim To evaluate the outcome of these complex fractures using a volar approach and the DePuy Synthes variable-angle 2.4-mm distal radius rim plate. This plate is precontoured to the volar rim for placement distal to the watershed line allowing purchase of the rim fragment of the lunate facet. Its low profile and smooth edges are designed to minimize flexor tendon irritation. Method We report on a consecutive series of far distal AO-23B3 and AO-23C3 fractures treated using this plate in a tertiary hand center between November 2011 and May 2014...
April 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28440007/spectrophotometric-analysis-of-fluorescent-zirconia-abutments-compared-to-conventional-zirconia-abutments-a-within-subject-controlled-clinical-trial
#3
Daniel S Thoma, Felix B Gamper, Vítor M Sapata, Giuseppe Voce, Christoph H F Hämmerle, Irena Sailer
BACKGROUND: Zirconia abutments are frequently used for implant-supported single crowns. Even though demonstrating esthetic benefits compared to metal abutments, zirconia abutments lead to an increased brightness of the peri-implant mucosa compared to natural teeth and are not ideal from an esthetic point of view. PURPOSE: To test whether or not a fluorescent hybrid zirconia abutment offers superior esthetics compared to a non-fluorescent one-piece zirconia abutment based on spectrophotometric analysis...
April 24, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28439819/lengthening-of-the-humerus-with-intramedullary-lengthening-nails-preliminary-report
#4
Julian Fürmetz, Søren Kold, Nikola Schuster, Florian Wolf, Peter H Thaller
Distraction osteogenesis of the humerus with fully implantable lengthening is now possible since the diameter of the available nails was reduced to 10 mm and below. We report on the first intramedullary lengthening cases of the humerus with two different lengthening devices (FITBONE and PRECICE). Two different approaches and implantation techniques were used. We retrospectively reviewed clinical and radiographic data and pointed out results, pitfalls and complications of the procedure. Four adult patients with relevant length discrepancy of the humerus were treated with fully implantable systems in two centers between 2012 and 2015...
April 24, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28437349/a-new-navigational-tool-for-pedicle-screw-placement-in-patients-with-severe-scoliosis-a-pilot-study-to-prove-feasibility-accuracy-and-identify-operative-challenges
#5
Michael Putzier, Patrick Strube, Riccardo Cecchinato, Claudio Lamartina, Eike K Hoff
STUDY DESIGN: Pilot study. OBJECTIVE: To develop and validate the feasibility and accuracy of a newly designed navigational spinal instrument guiding tool for patient-matched thoracic and lumbar pedicle screw placement in patients with severe scoliosis, and to identify intraoperative challenges that may be relevant. SUMMARY OF BACKGROUND DATA: Pedicle screw placement is challenging in severely rotated scoliotic spine with small diameters and asymmetrical shape of the pedicles and vertebrae...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28435618/comparative-study-of-abutment-screw-loosening-with-or-without-adhesive-material
#6
Mahnaz Arshad, Gholamreza Shirani, Sina Refoua, Mohammadreza Rahimi Yeganeh
PURPOSE: The purpose of this study was to achieve more retention and stability and to delay or prevent screw loosening. MATERIALS AND METHODS: Twenty implants (Implantium 3.4 mm, Dentium, Seoul, Korea) were divided into 2 groups (n = 20). In the first group, an adhesive material was applied around the screw of the abutments (test group). In the second group, the screws are soaked in saliva (control group). All the screws were torqued under 30 N/cm, Then, the samples were gone through a cyclic fatigue loading process...
April 2017: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28434833/metaphyseal-versus-diaphyseal-ulnar-shortening-osteotomy-for-treatment-of-ulnar-impaction-syndrome-a-comparative-study
#7
Alejandro Marquez-Lara, Fiesky A Nuñez, Tunc Kiymaz, Fiesky A Nuñez, Zhongyu Li
PURPOSE: To compare the clinical and radiographic outcomes and complication rates of diaphyseal and metaphyseal ulnar shortening osteotomies for the treatment of ulnar abutment syndrome. METHODS: We performed a retrospective study comparing 35 patients who underwent either a metaphyseal (n = 14) or diaphyseal (n = 21) osteotomy. Radiographic and clinical outcomes were compared. Complication rates including infection, hardware removal, and reoperations were also assessed...
April 20, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28425054/can-a-three-component-prosthesis-be-used-for-conversion-of-painful-ankle-arthrodesis-to-total-ankle-replacement
#8
Markus Preis, Travis Bailey, Lucas S Marchand, Alexej Barg
BACKGROUND: In patients with painful ankle arthrodesis, the surgical treatment is challenging, and may include takedown of ankle arthrodesis and conversion to a total ankle replacement (TAR). This procedure is technically demanding given the altered anatomy after arthrodesis. Few studies have evaluated TAR in the setting of prior arthrodesis. QUESTIONS/PURPOSES: (1) What intraoperative and perioperative complications were observed in patients who underwent conversion of an ankle arthrodesis to a TAR? (2) Was durable fixation achieved at short term, and what was the alignment of the components? (3) What subsequent surgical procedures were performed, including revisions? (4) What improvements were observed in pain, tibiotalar range of motion (ROM), and quality of life? METHODS: Between January 2007 and December 2014, 18 patients with a painful ankle arthrodesis underwent conversion to TAR at our tertiary referral center...
April 19, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28422663/a-neural-probe-with-up-to-966-electrodes-and-up-to-384-configurable-channels-in-0-13-%C3%AE-m-soi-cmos
#9
Carolina Mora Lopez, Jan Putzeys, Bogdan Cristian Raducanu, Marco Ballini, Shiwei Wang, Alexandru Andrei, Veronique Rochus, Roeland Vandebriel, Simone Severi, Chris Van Hoof, Silke Musa, Nick Van Helleputte, Refet Firat Yazicioglu, Srinjoy Mitra
In vivo recording of neural action-potential and local-field-potential signals requires the use of high-resolution penetrating probes. Several international initiatives to better understand the brain are driving technology efforts towards maximizing the number of recording sites while minimizing the neural probe dimensions. We designed and fabricated (0.13- μm SOI Al CMOS) a 384-channel configurable neural probe for large-scale in vivo recording of neural signals. Up to 966 selectable active electrodes were integrated along an implantable shank (70 μm wide, 10 mm long, 20  μm thick), achieving a crosstalk of [Formula: see text] dB...
April 14, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28414565/new-regenerative-vascular-grafts-for-hemodialysis-access-evaluation-of-a-preclinical-animal-model
#10
Karen Tatiana Valencia Rivero, Juliana Jaramillo Escobar, Sergio David Galvis Forero, Maria Clara Miranda Saldaña, Rocío Del Pilar López Panqueva, Néstor Fernando Sandoval Reyes, Juan Carlos Briceño Triana
The purpose of this study was to evaluate a suitable animal model for the in vivo evaluation of patency and vascular tissue regeneration in small intestinal submucosa (SIS) vascular grafts for hemodialysis access. First, a 4-mm U-shaped SIS vascular graft was implanted between the internal carotid artery (CA) and the external jugular vein (JV) in five sheep and six swine. The U-shape grafts remained functional for 53 ± 4 days in sheep and 32 ± 2 days in swine. The sheep model presented exaggerated inflammation, so the swine model was selected for the in vivo study...
April 17, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28412961/perventricular-double-device-closure-of-wide-spaced-multi-hole-perimembranous-ventricular-septal-defect
#11
Fei Liang, Li Hongxin, Hai-Zhou Zhang, Guo Wenbin, Cheng-Wei Zou, Zeeshan Farhaj
BACKGROUND: Device closure of a wide-spaced multi-hole PmVSD is difficult to succeed in percutaneous approach. This study is to evaluate the feasibility, safety and efficacy of perventricular device closure of wide-spaced multi-hole PmVSD using a double-device implanting technique. METHODS: Sixteen patients with wide-spaced multi-hole PmVSD underwent perventricular closure with two devices through an inferior median sternotomy approach under transesophageal echocardiographic guidance...
April 17, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28412105/how-bone-quality-may-influence-intraoperative-and-early-postoperative-problems-after-angular-stable-open-reduction-internal-fixation-of-proximal-humeral-fractures
#12
Christian Spross, Rebeca Zeledon, Vilijam Zdravkovic, Bernhard Jost
BACKGROUND: With the introduction of the deltoid tuberosity index (DTI), a simple radiographic tool has become available to measure bone mineral density of the proximal humerus. The aim of this study was to assess the influence of local bone mineral density on the early failure rate after angular stable open reduction-internal fixation of proximal humeral fractures (PHFs). METHODS: We retrospectively followed up all patients treated with angular stable implants for PHFs from 2007 to 2014...
April 12, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28411966/ultrasound-screening-for-adverse-local-tissue-reaction-after-hip-arthroplasty
#13
David J Robinson, Steven Lee, Paul Marks, Michal E Schneider
Early detection of adverse local tissue reaction (ALTR) to prosthetic hip wear debris is vital to improve the success of revision surgery. Magnetic resonance imaging with metal artefact reduction sequencing (MARS MRI) is considered the modality of choice to provide cross-sectional imaging of the soft tissues. The areas adjacent to the prosthesis are, however, not readily imaged using these protocols. Ultrasound has also been recommended as an imaging modality in the follow-up of hip replacement surgery. We decided to characterise the typical ultrasound findings in a group of patients undergoing routine biennial review of arthroplastic hips with particular reference to the hip capsule, femoral neck and iliopsoas bursa and tendon adjacent to the implant...
April 12, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28410721/microbypass-stent-implantation-with-cataract-extraction-and-endocyclophotocoagulation-versus-microbypass-stent-with-cataract-extraction-for-glaucoma
#14
Tanner J Ferguson, Russell Swan, Ramu Sudhagoni, John P Berdahl
PURPOSE: To compare the outcomes of combined microbypass stent implantation, cataract extraction, and endocyclophotocoagulation (ECP) with those of implantation of the same microbypass stent with concomitant cataract surgery in patients with open-angle glaucoma (OAG). SETTING: Private Practice, Sioux Falls, South Dakota, USA. DESIGN: Retrospective consecutive case series. METHODS: Patients from January 2015 to August 2016 were included...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410355/descemetorhexis-without-graft-placement-for-the-treatment-of-fuchs-endothelial-dystrophy-preliminary-results-and-review-of-the-literature
#15
Alfonso Iovieno, Alberto Neri, Anna Maria Soldani, Chantal Adani, Luigi Fontana
PURPOSE: To report our preliminary experience with a central descemetorhexis without graft placement in Fuchs endothelial corneal dystrophy (FECD) and to review the existing literature on the topic. METHODS: A 4-mm central descemetorhexis was performed in 5 patients (4 women, 1 man; mean age: 69.8 ± 8.6 yrs; range: 57-78 yrs) with FECD. All patients had central confluent guttae, undetectable central endothelial cell count, healthy peripheral corneal endothelium, no clinically evident bullous keratopathy, and no ocular comorbidities...
April 13, 2017: Cornea
https://www.readbyqxmd.com/read/28407164/intraocular-pressure-after-implantation-of-a-phakic-collamer-intraocular-lens-with-a-central-hole
#16
Ignacio Rodríguez-Una, Pedro Pablo Rodríguez-Calvo, Luis Fernández-Vega Cueto, Carlos Lisa, Andrés Fernández-Vega Cueto, José F Alfonso
PURPOSE: To investigate the middle-term intraocular pressure (IOP) results after implantation of a posterior chamber collagen copolymer phakic intraocular lens (IOL) (V4c Visian; STAAR Surgical Co., Nidau, Switzerland) with a central hole in patients with myopia. METHODS: This retrospective study enrolled patients who had implantation of a phakic IOL with a central hole. IOP, central vault, and adverse events were evaluated 1, 3, 6, 12, and 24 months postoperatively...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407161/preliminary-evidence-of-successful-near-vision-enhancement-with-a-new-technique-presbyopic-allogenic-refractive-lenticule-pearl-corneal-inlay-using-a-smile-lenticule
#17
Soosan Jacob, Dhivya Ashok Kumar, Amar Agarwal, Athiya Agarwal, Ramalingam Aravind, A I Saijimol
PURPOSE: To describe a new technique (PrEsbyopic Allogenic Refractive Lenticule [PEARL] inlay) using an allogenic corneal inlay prepared from a small incision lenticule extraction (SMILE) lenticule. METHODS: A SMILE lenticule of specified thickness (mean: 61.5 ± 3.32 µm) was trephined at the center to 1-mm diameter and implanted in the cornea on the coaxially sighted light reflex under a femtosecond laser-created cap of 120 µm in the nondominant eye of presbyopic patients...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28402348/accuracy-of-bone-sounding-in-assessing-facial-osseous-gingival-tissue-relationship-in-maxillary-anterior-teeth
#18
Joseph Yk Kan, Yoon Jeong Kim, Kitichai Rungcharassaeng, John C Kois
The aim of this study was to evaluate the accuracy of bone sounding (BS) in assessing the facial osseous-gingival tissue relationship (FOGTR) of failing maxillary anterior teeth. Dental records of patients who received immediate implant placement (IIP) at the maxillary anterior area were screened. Mid-FOGTR prior to extraction (BS), and immediately after flapless extraction (direct bone level [DBL] measurement) were analyzed. A total of 160 patients with 190 maxillary anterior teeth were included. The mean FOGTR obtained from BS and DBL were 3...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28402342/survival-rates-and-bone-and-soft-tissue-level-changes-around-one-piece-dental-implants-placed-with-a-flapless-or-flap-protocol-8-5-year-results
#19
Stuart J Froum, Ismael Khouly
The purpose of the current study was to determine the survival rates and to measure marginal bone changes and peri-implant conditions 8.5 years after placement of one-piece implants with an anodically oxidized surface (AOS). A total of 52 subjects who received a one-piece implant with an AOS using a flapless or flap protocol and completed a previous randomized clinical trial were contacted for a recall visit 8.5 years after implant placement (T8.5). Implant success and survival rates, probing pocket depth (PPD), presence of bleeding on probing (BoP), papilla level, and incidence of complications and peri-implant disease were assessed by a single, blinded examiner...
May 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28401593/low-dose-bmp-2-and-msc-dual-delivery-onto-coral-scaffold-for-critical-size-bone-defect-regeneration-in-sheep
#20
Adeline Decambron, Alexandre Fournet, Morad Bensidhoum, Mathieu Manassero, Frédéric Sailhan, Hervé Petite, Delphine Logeart-Avramoglou, Véronique Viateau
Tissue-engineered constructs (TECs) combining resorbable calcium-based scaffolds and mesenchymal stem cells (MSCs) have the capability to regenerate large bone defects. Inconsistent results have, however, been observed, with a lack of osteoinductivity as a possible cause of failure. This study aimed to evaluate the impact of the addition of low-dose bone morphogenetic protein-2 (BMP-2) to MSC-coral-TECs on the healing of clinically-relevant segmental bone defects in sheep. Coral granules were either seeded with autologous MSCs (bone marrow-derived) or loaded with BMP-2...
April 12, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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