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https://www.readbyqxmd.com/read/28812014/surgical-approach-may-influence-survival-of-large-diameter-head-metal-on-metal-total-hip-arthroplasty-a-6-to-10-year-follow-up-study
#1
Chih-Chien Hu, Tsan-Wen Huang, Shih-Jie Lin, Po-Chun Lin, Feng-Chih Kuo, Kuo-Ti Peng, Kuo-Chin Huang, Hsin-Nung Shih, Mel S Lee
Large-diameter head (LDH) metal-on-metal (MoM) total hip arthroplasty (THA) has lost popularity because of metal allergy or ALTRs (adverse local tissue reactions) in the past decade. Whether the surgical approach may influence the survival of LDH-MoM-THA has not been reported. From 2006 to 2009, we performed 96 LDH-MoM-THAs on 80 patients using an in situ head-neck assembly technique through a modified Watson-Jones approach. With a mean follow-up of 8.4 years (range, 6.3-10.1 years), the implant survival rate was 100%...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28811043/treatment-of-the-fixation-surface-improves-glenoid-prosthesis-longevity-in-vitro
#2
Sarah Junaid, Sanjay Sanghavi, Carolyn Anglin, Anthony Bull, Roger Emery, Andrew A Amis, Ulrich Hansen
Many commercial cemented glenoid components claim superior fixation designs and increased survivability. However, both research and clinical studies have shown conflicting results and it is unclear whether these design variations do improve loosening rates. Part of the difficulty in investigating fixation failure is the inability to directly observe the fixation interface, a problem addressed in this study by using a novel experimental set-up. Cyclic loading-displacement tests were carried out on 60 custom-made glenoid prostheses implanted into a bone substitute...
July 22, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28808626/acetabular-revisions-using-porous-tantalum-components-a-retrospective-study-with-5-10-years-follow-up
#3
Francesco Roberto Evola, Luciano Costarella, Giuseppe Evola, Martina Barchitta, Antonella Agodi, Giuseppe Sessa
AIM: To evaluate the clinical and X-ray results of acetabular components and tantalum augments in prosthetic hip revisions. METHODS: Fifty-eight hip prostheses with primary failure of the acetabular component were reviewed with tantalum implants. The clinical records and X-rays of these cases were retrospectively reviewed. Bone defect evaluations were based on preoperative CT scans and classified according to Paprosky criteria of Radiolucent lines and periprosthetic gaps; implant mobilization and osteolysis were evaluated by X-ray...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28806948/assessment-of-lower-urinary-symptom-flare-with-overactive-bladder-symptom-score-and-international-prostate-symptom-score-in-patients-treated-with-iodine-125-implant-brachytherapy-long-term-follow-up-experience-at-a-single-institute
#4
Makito Miyake, Nobumichi Tanaka, Isao Asakawa, Shunta Hori, Yosuke Morizawa, Yoshihiro Tatsumi, Yasushi Nakai, Takeshi Inoue, Satoshi Anai, Kazumasa Torimoto, Katsuya Aoki, Masatoshi Hasegawa, Tomomi Fujii, Noboru Konishi, Kiyohide Fujimoto
BACKGROUND: The aim of this study was to evaluate the combined use of the overactive bladder symptom score (OABSS) and International Prostate Symptom Score (IPSS) as an assessment tool for urinary symptom flare after iodine-125 ((125)I) implant brachytherapy. The association between urinary symptom flare and prostate-specific antigen (PSA) bounce was investigated. METHODS: Changes in the IPSS and OABSS were prospectively recorded in 355 patients who underwent seed implantation...
August 14, 2017: BMC Urology
https://www.readbyqxmd.com/read/28803915/neural-crest-cell-implantation-restores-enteric-nervous-system-function-and-alters-the-gastrointestinal-transcriptome-in-human-tissue-engineered-small-intestine
#5
Christopher R Schlieve, Kathryn L Fowler, Matthew Thornton, Sha Huang, Ibrahim Hajjali, Xiaogang Hou, Brendan Grubbs, Jason R Spence, Tracy C Grikscheit
Acquired or congenital disruption in enteric nervous system (ENS) development or function can lead to significant mechanical dysmotility. ENS restoration through cellular transplantation may provide a cure for enteric neuropathies. We have previously generated human pluripotent stem cell (hPSC)-derived tissue-engineered small intestine (TESI) from human intestinal organoids (HIOs). However, HIO-TESI fails to develop an ENS. The purpose of our study is to restore ENS components derived exclusively from hPSCs in HIO-TESI...
August 9, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28803898/electrospun-fibrous-membranes-featuring-sustained-release-of-ibuprofen-reduce-adhesion-and-improve-neurological-function-following-lumbar-laminectomy
#6
Shen Liu, Guoqing Pan, Guangwang Liu, José das Neves, Sa Song, Shuai Chen, Bangjun Cheng, Zhiyong Sun, Bruno Sarmento, Wenguo Cui, Cunyi Fan
Electrospun fibrous membranes provide suitable physical anti-adhesion barriers for reducing tissue anti-adhesion following surgery. However, often during the biodegradation process, these barriers trigger inflammation and cause a foreign body reaction with subsequent decrease in anti-adhesion efficacy. Here, a facile strategy comprising the incorporation of ibuprofen (IBU) into implantable membranes and its sustained release was proposed in order to improve anti-adhesion effects and neurological outcomes, namely to prevent failed back surgery syndrome (FBSS)...
August 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28803739/two-stage-reconstruction-of-the-severely-deficient-alveolar-ridge-bone-graft-followed-by-alveolar-distraction-osteogenesis
#7
A Rachmiel, O Emodi, D Aizenbud, D Rachmiel, D Shilo
Distraction osteogenesis for the augmentation of severe alveolar bone deficiency has gained popularity during the past two decades. In cases where the vertical bone height is not sufficient to create a stable transport segment, performing alveolar distraction osteogenesis (ADO) is not possible. In these severe cases, a two-stage treatment protocol is suggested: onlay bone grafting followed by ADO. An iliac crest onlay bone graft followed by ADO was performed in 13 patients: seven in the mandible and six in the maxilla...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28803735/previously-successful-dental-implants-can-fail-when-patients-commence-anti-resorptive-therapy-a-case-series
#8
M A Pogrel, S L Ruggiero
This article reports a type of localized osteonecrosis that can occur in patients who have had successful osseointegrated implants for many years and then commence anti-resorptive therapy. Eleven female patients were identified who had successful implant insertion, but who were placed on anti-resorptive therapy (bisphosphonates or denosumab) several years later and developed osteonecrosis around the implants. In each case, the osteonecrosis occurred only around the implants and not around the patient's remaining teeth...
August 10, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28802417/augmentation-plating-in-management-of-failed-femoral-nailing
#9
Rahul Verma, Pulak Sharma, Sanjiv Gaur
INTRODUCTION: Non-union following interlocking nailing is a troubling complication in treatment of shaft femur fractures. There is no clear consensus on the treatment of this problem. This research was undertaken to study the role of augmentation plating combined with exchange nailing in such cases. PATIENTS AND METHODS: A prospective clinical study was undertaken from January 2010 to December 2015. Patients with aseptic femoral shaft non-union, with or without implant failure following intramedullary nailing were included in the study...
August 2017: Injury
https://www.readbyqxmd.com/read/28801202/a-biomechanical-study-comparing-proximal-femur-nail-and-proximal-femur-locking-compression-plate-in-fixation-of-reverse-oblique-proximal-femur-fractures
#10
Ashutosh Kumar Singh, N Narsaria, R K Gupta
BACKGROUND: The reverse oblique trochanteric fractures are common fractures and its treatment poses a challenge. The purpose of this study was to compare the biomechanical parameters of the construct using proximal femoral nail (PFN) and proximal femoral locking compression plates (PFLCP) in these fractures using cadaveric specimens. MATERIALS AND METHODS: Twenty freshly harvested cadaveric femoral specimens were randomly assigned to two groups after measuring bone mineral density, ten of which were implanted with PFN and the other ten with PFLCP...
May 22, 2017: Injury
https://www.readbyqxmd.com/read/28796952/implanted-dental-pulp-cells-fail-to-induce-regeneration-in-partial-pulpotomies
#11
F Mangione, M EzEldeen, C Bardet, J Lesieur, M Bonneau, F Decup, B Salmon, R Jacobs, C Chaussain, S Opsahl-Vital
Cell-based partial pulp regeneration is one of the promising approaches to obtain newly formed functional dentin-pulp complex. It relies on the preservation of the healthy tissue while regenerating the damaged pulp. The aim of this study was to investigate whether this regenerative process could be achieved by implanting porcine dental pulp cells (pDPCs) in pulp defects in the minipig. By split-mouth model, self-assembling injectable nanopeptide hydrogel, with and without pDPCs, was implanted after cameral pulpotomy in premolars and molars...
August 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28783506/nanoscale-silver-depositions-inhibit-microbial-colonization-and-improve-biocompatibility-of-titanium-abutments
#12
Supriya Kheur, Nimisha Singh, Dhananjay Bodas, Jean-Yves Rauch, Shantanu Jambhekar, Mohit Kheur, Jyutika Rajwade
Although titanium dental implants are biocompatible, exhibit excellent corrosion resistance and high mechanical resistance, the material fails in providing resistance to infection because it exhibits poor antimicrobial activity. To address these issues, we deposited silver onto titanium abutments (Grade 5 titanium discs) using direct current (DC) sputtering and assessed the antimicrobial activity and biocompatibility of the modified implant material. Atomic absorption spectrometry and X-ray photoelectron spectroscopy were employed to investigate the concentration and elemental composition of the deposited silver...
July 29, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28783201/validation-of-the-dapt-score-in-patients-randomized-to-6-or-12-months-clopidogrel-after-predominantly-second-generation-drug-eluting-stents
#13
Yukinori Harada, Jonathan Michel, Raphaela Lohaus, Katharina Mayer, Roberto Emmer, Anna Lena Lahmann, Roisin Colleran, Daniele Giacoppo, Annabelle Wolk, Jurrien M Ten Berg, Franz-Josef Neumann, Yaling Han, Tom Adriaenssens, Ralph Tölg, Melchior Seyfarth, Michael Maeng, Bernhard Zrenner, Claudius Jacobshagen, Jochen Wöhrle, Sebastian Kufner, Tanja Morath, Tareq Ibrahim, Isabell Bernlochner, Marcus Fischer, Heribert Schunkert, Karl-Ludwig Laugwitz, Julinda Mehilli, Robert A Byrne, Adnan Kastrati, Stefanie Schulz-Schüpke
The DAPT score is a recently-proposed decision tool for guiding optimal duration of dual antiplatelet therapy (DAPT). It showed modest accuracy in prior derivation and validation cohorts of patients with ≥12 months DAPT. This study was aimed to evaluate the validity of the DAPT score in a cohort of patients with 6 or 12 months DAPT after implantation of predominantly second-generation drug-eluting stents. We analyzed data of patients enrolled in the ISAR-SAFE trial. Patients were classified into low (<2) or high (≥2) DAPT score groups...
July 27, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28781018/high-early-major-complication-rate-after-revision-for-mechanically-assisted-crevice-corrosion-in-metal-on-polyethylene-total-hip-arthroplasty
#14
Brian J McGrory, Anna H Jorgensen
BACKGROUND: Failed total hip arthroplasty caused by mechanically assisted crevice corrosion (MACC) has serious consequences such as adverse local tissue reaction. Revision is currently indicated for significant hip pain, stiffness, and dysfunction; hip instability; progressive bone loss; and soft tissue destruction. Outcomes of this revision surgery are not yet completely understood. METHODS: We examined the surgical outcomes at a minimum of 6 months (average, 25; range, 7-68 months) in a cohort of 27 consecutive patients who underwent revision total hip arthroplasty for MACC associated with a single implant vendor and taper type...
July 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28768449/recurrent-fuo-due-to-intermittent-enterobacter-cloacae-bacteremias-from-an-infected-pacemaker-lead-diagnosed-by-gallium-scan
#15
Burke A Cunha, Ismail Jimada
Fever of unknown origin (FUO) refers to fevers of ≥101° F that persist for ≥3 weeks and remain undiagnosed after a focused inpatient or outpatient workup. FUO may be due to infectious, malignant/neoplastic, rheumatic/inflammatory, or miscellaneous disorders. Recurrent FUOs are due to the same causes of classical FUOs. Recurrent FUOs may have continuous or intermittent fevers and are particularly difficult to diagnose. With intermittent fever, recurrent FUO diagnostic tests are best obtained during fever episodes...
August 2, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28765800/fortifying-the-bone-implant-interface-part-2-an-in-vivo-evaluation-of-3d-printed-and-tps-coated-triangular-implants
#16
Regina F MacBarb, Derek P Lindsey, Shane A Woods, Peggy A Lalor, Mukund I Gundanna, Scott A Yerby
BACKGROUND: Minimally invasive surgical fusion of the sacroiliac (SI) joint using machined solid triangular titanium plasma spray (TPS) coated implants has demonstrated positive clinical outcomes in SI joint pain patients. Additive manufactured (AM), i.e. 3D-printed, fenestrated triangular titanium implants with porous surfaces and bioactive agents, such as nanocrystalline hydroxyapatite (HA) or autograft, may further optimize bony fixation and subsequent biomechanical stability. METHODS: A bilateral ovine distal femoral defect model was used to evaluate the cancellous bone-implant interfaces of TPS-coated and AM implants...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28764310/microleakage-at-the-different-implant-abutment-interface-a-systematic-review
#17
REVIEW
Sunil Kumar Mishra, Ramesh Chowdhary, Shail Kumari
INTRODUCTION: Presence of gap at the implant-abutment interface, leads to microleakage and accumulation of bacteria which can affect the success of dental implants. AIM: To evaluate the sealing capability of different implant connections against microleakage. MATERIALS AND METHODS: In January 2017 an electronic search of literature was performed, in Medline, EBSCO host and Pubmed data base. The search was focused on ability of different implant connections in preventing microleakage...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762999/immunological-responses-to-total-hip-arthroplasty
#18
REVIEW
Kenny Man, Lin-Hua Jiang, Richard Foster, Xuebin B Yang
The use of total hip arthroplasties (THA) has been continuously rising to meet the demands of the increasingly ageing population. To date, this procedure has been highly successful in relieving pain and restoring the functionality of patients' joints, and has significantly improved their quality of life. However, these implants are expected to eventually fail after 15-25 years in situ due to slow progressive inflammatory responses at the bone-implant interface. Such inflammatory responses are primarily mediated by immune cells such as macrophages, triggered by implant wear particles...
August 1, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28760721/transcatheter-aortic-valve-implantation-versus-re-do-surgery-for-failing-surgical-aortic-bioprosthesis-a-multi-centre-propensity-score-analysis
#19
Marco Spaziano, Darren Mylotte, Pascal Thériault-Lauzier, Ole De Backer, Lars Søndergaard, Johan Bosmans, Nicolas Debry, Thomas Modine, Marco Barbanti, Corrado Tamburino, Jan-Malte Sinning, Eberhard Grube, Georg Nickenig, Fritz Mellert, Sabine Bleiziffer, Rüdiger Lange, Benoit de Varennes, Kevin Lachapelle, Giuseppe Martucci, Nicolo Piazza
AIMS: Transcatheter aortic valve implantation for a failing surgical bioprosthesis (TAV- in-SAV) has become an alternative for patients at high risk for redo surgical aortic valve replacement (redo-SAVR). Comparisons between these approaches are non-existent. This study aims to compare clinical and echocardiographic outcomes of patients undergoing TAV-in-SAV versus redo-SAVR after accounting for baseline differences by propensity score matching. METHODS AND RESULTS: Patients from 7 centres in Europe and Canada who had undergone either TAV- in-SAV (n=79) or redo-SAVR (n=126) were identified...
August 1, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28758296/failing-to-meet-the-goals-of-periodontal-recall-programs-what-next
#20
REVIEW
Giles McCracken, Abisola Asuni, Mark Ritchie, Christopher Vernazza, Peter Heasman
Supportive periodontal care is a crucial aspect of the management of chronic periodontitis and peri-implantitis and is inevitably a long-term commitment for both the clinician and the patient. The principal goals of supportive care are to achieve a high standard of plaque control, minimize bleeding and maintain pockets at less than 6 mm. Gain of attachment around natural teeth during supportive periodontal care has been reported, although gain of attachment and of bone during supportive care may be a more pragmatic and aspirational aim in the longer term...
October 2017: Periodontology 2000
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