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Prosthesis Design (1):
Recent article
Prosthesis Design
Abstract
We have analyzed the Society for Cardiothoracic Surgery in Great Britain and Ireland audit database to look at changes in practice over time....
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PMID: 21924147
PDF is available here.
PDF is available here.
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Abstract
Abstract
Abstract
Audio, Transactions of the IRE Professional Group on (124)11 Suppl 2011
Abstract
We hypothesized that rigid rings with nonphysiological three-dimensional shapes, but not saddle-shaped rigid rings or flexible bands, increase AML strains....
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PMID: 21911823
PDF is available here.
PDF is available here.
MMW Fortschritte der Medizin (153)36 2011
Abstract
Abstract
The purpose of this study was to evaluate and analyze statistical shapes of the outer mandible contour of Caucasian and Chinese people, offering data for the production of preformed mandible reconstruction plates.
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PMID: 21094050
PDF is available here.
PDF is available here.
Abstract
Mandibular defect occurs more frequently in recent years, and clinical repair operations via bone transplantation are difficult to be further improved due to some intrinsic flaws. Tissue engineering, which is a hot research field of biomedical engineering, provides a new direction fo...
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PMID: 21887853
PDF is available here.
PDF is available here.
Abstract
Most total knee arthroplasty prostheses have modular tibial components with metal-backed tibial baseplates. Biomechanical studies have demonstrated mechanical advantages to a metal-backed tibial component in terms of tibial load transfer. In addition, tibial component modularity provides intraoperati...
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PMID: 21885698
PDF is available here.
PDF is available here.
Abstract
We systematically searched currently available randomized controlled trials that compared the effects of MLs and SVLs in children. A meta-analysis of nine of these trials showed that MLs with powers ranging from +1.50 to +2.00D were associated with a statistically significantly decrease in myopia pr...
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PMID: 21813146
PDF is available here.
PDF is available here.
Abstract
Our aim was to update the failure rates related to metal debris for the Articular Surface Replacement (ASR). A total of 505 of these were implanted. Kaplan-Meier analysis showed a failure rate of 25% at six years for the ASR resurfacing and of 48.8% for the ASR total hip replacement (THR). Of 257 pa...
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PMID: 21768621
PDF is available here.
PDF is available here.
Abstract
We measured the peri-prosthetic bone density around the acetabular components for up to two years using dual-energy x-ray absorptiometry. We found evidence that the cemented acetabular component loaded the acetabular bone centromedially whereas the trabecular metal monobloc loaded the lateral rim an...
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PMID: 21768625
PDF is available here.
PDF is available here.
Abstract
We present a retrospective review of 18 patients who underwent limb salvage using a tibial diaphyseal endoprosthetic replacement following excision of a malignant bone tumour. There were ten men and eight women with a mean age of 42.5 years (16 to 76). Mean follow-up was 58.5 months (20 to 141) for...
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PMID: 21768638
PDF is available here.
PDF is available here.
Abstract
Bioengineering reasons for increased wear and failure of metal-on-metal (MoM) bearings in hip prostheses have been described. Low wear occurs in MoM hips when the centre of the femoral head is concentric with the centre of the acetabular component and the implants are correctly posit...
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PMID: 21768619
PDF is available here.
PDF is available here.
Abstract
We retrospectively analysed 250 ceramic-on-ceramic hip replacements in 224 patients which had been implanted between April 2000 and December 2007. The mean age of the patients at operation was 44 years (14 to 83) and all the operations were performed using the same surgical technique at a single cen...
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PMID: 21768622
PDF is available here.
PDF is available here.
Abstract
We investigated survival of an uncemented, tapered titanium femoral stem that was available either with or without HA coating (Bi-Metric). Patients and methods The stem had been used in 4,772 total hip arthroplasties (THAs) in 4,169 patients registered in the Swedish Hip Arthroplasty Register betwee...
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PMID: 21751858
PDF is available here.
PDF is available here.
Abstract
We therefore compared patient-level data from 2,298 subjects enrolled into the TAXUS ATLAS (TAXUS Liberté) and PERSEUS (ION) clinical trials. Propensity-score (1:1) matching was performed to adjust for covariate imbalance between stent types. Twelve-month major adverse cardiac events were less freq...
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PMID: 21803319
PDF is available here.
PDF is available here.
Abstract
Abstract
We sought to compare the reference vessel diameter (RVD) of the infarct-related artery before, immediately after, and at late follow-up after PCI for STEMI. We further investigated whether vessels treated with paclitaxel-eluting (PES) or bare-metal stents (BMS) behave differently with respect to RVD...
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PMID: 21742105
PDF is available here.
PDF is available here.
Abstract
With the aim of improving the understanding of iliosacral screw placement, two hypotheses were tested: (1) standard intraoperative inlet and outlet images are not based on orthogonal coordinates, and (2) therefore making starting point and aim changes by moving perpendicular to the c-arm beam will di...
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PMID: 21818026
PDF is available here.
PDF is available here.
Abstract
We hypothesized that the placement of one femoral head/neck fixation device in the PFNA would improve positioning of the implant in the femoral head compared with the PFN and reduce the number of reoperations in both short and long term....
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PMID: 21818023
PDF is available here.
PDF is available here.
Abstract
We report the surgical results of a modified technique with posterior columnar screw insertion and neutralization plate in a single Kocher-Langenbeck approach for complex acetabular fractures....
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PMID: 21818025
PDF is available here.
PDF is available here.
Abstract
The "palm tree-like wiring" introduced by Kapandji and its modifications for proximal humeral fractures should be given the generic name "retrograde intramedullary multiple pinning through the deltoid 'V'" (IMPV). IMPV is still preferable for treating valgus-impacted four-part fractures in which K-wi...
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PMID: 21818030
PDF is available here.
PDF is available here.
Abstract
In contrast to mitral valve repair, residual and recurrent regurgitation after tricuspid valve (TV) repair for functional tricuspid regurgitation (TR) is common. We have systematically used undersized, rigid 3-dimensional annuloplasty rings to treat functional TR.
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PMID: 21718833
PDF is available here.
PDF is available here.
Oral Oncology (47)9 2011
Abstract
We used a repeated measures design study with 4 randomized groups in a partial cross-over design using 3 consecutive TESPs (3 intervals) in different orders. (Group 1: GULR-GULR-GULR; Group 2: GULR-GULR-Provox2; Group 3: Provox2-Provox2-GULR; and Group 4: Provox2- Provox2-Provox2). Replacement dates...
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PMID: 21733742
PDF is available here.
PDF is available here.
Abstract
Abstract
Abstract
We reviewed all of our patients who underwent ankle replacement utilizing the STAR prosthesis from 2000 to 2009 to evaluate the outcome of those with moderate (10 to 19 degrees) and severe (20 degrees or greater) coronal plane deformity....
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PMID: 21972759
PDF is available here.
PDF is available here.
Abstract
Abstract
Neuroprostheses based on electrical stimulation could potentially help disabled persons. They are based on neural interface that aim at creating an intimate contact with neural cells. The efficacy of neuroprostheses can be improved by increasing the selectivity of the neural interfac...
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PMID: 21693427
PDF is available here.
PDF is available here.
Abstract
We aimed to systematically study the effect of prosthetic foot mechanics on gait, to gain insight into fundamental prosthetic design principles. We varied a single parameter in isolation, the energy-storing spring in a prototype prosthetic foot, the Controlled Energy Storage and Return (CESR) foot,...
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PMID: 21708509
PDF is available here.
PDF is available here.
Abstract
We report on the total wrist replacements and their revision rates over a 16-year period. Material and methods 189 patients with 189 primary wrist replacements (90 Biax prostheses (80 of which were cementless), 23 cementless Elos prostheses, and 76 cementless Gibbon prostheses), operated during the...
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PMID: 21657971
PDF is available here.
PDF is available here.
Abstract
We present medium-term DXA results from a randomized study comparing a customized and an anatomical femoral stem. Methods 100 hips were randomized to receive either the anatomical ABG-I stem or the Unique customized femoral stem, both uncemented. DXA measurements were conducted postoperatively and a...
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PMID: 21668387
PDF is available here.
PDF is available here.
Abstract
Abstract
These data suggest that stent-graft sizing should follow the manufacturer's recommendations for using inner or outer diameter references based on dynamic patterns (mean value between diastolic and systolic diameters suggested)....
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PMID: 21679062
PDF is available here.
PDF is available here.
Abstract
Among the 208 cases, 11 patients had endoleaks other than type II and were excluded, leaving 195 patients for analysis. In all, 28 (13.4%) patients were diagnosed with EL-II. All had ≥4 patent lumbar arteries (mean diameter >2.3 mm). Ten patients with a transient EL-II had a mean of 4.3 patent lu...
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PMID: 21679064
PDF is available here.
PDF is available here.
Abstract
In group 2, there were more men (79% vs. 63%; p = 0.03), and the patients had more diagnosed (p<0.01) and previously repaired (p<0.01) abdominal aortic aneurysms. Aneurysms in group 2 were significantly larger in both diameter (63 vs. 56 mm, p<0.01) and length (157 vs. 113 mm, p<0.01). Percent...
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PMID: 21679072
PDF is available here.
PDF is available here.
Abstract
I endoleak. The recovery was complicated by retrograde type A aortic dissection, considered secondary to the bare stent. The complication was repaired surgically; postoperative computed tomography after recovery was unremarkable. Conclusion: Transapical wire-assisted deployment with rapid ventricula...
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PMID: 21679073
PDF is available here.
PDF is available here.
Abstract
We successfully employed a combination of available minimally invasive techniques to treat a patient who was not ideally suited to any of the individual strategies....
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PMID: 21679076
PDF is available here.
PDF is available here.
Abstract
Abstract Purpose: To evaluate the usefulness of a new transfemoral device to avoid major complications related to residual type A aortic dissection following ascending aortic replacement. Case Reports: Three men (aged 60, 61, and 72 years, respectively) with a residual type A aortic...
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PMID: 21679078
PDF is available here.
PDF is available here.
Abstract
The results of the patient-specific finite element analysis of CAS matched well with experimental stent deployment both qualitatively and quantitatively, demonstrating the reliability of the numerical approach. The measured inter-strut angles suggested that the closed-cell design provided superior v...
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PMID: 21679082
PDF is available here.
PDF is available here.
Abstract
The SEBMAS degraded gradually after being implanted into the rabbit aorta, and total biocorrosion occurred after ∼120 days. In all groups, the lumen area was significantly greater, but the neointimal area was significantly smaller in SEBMAS segments compared with the uncoated BMAS segments (p<0.0...
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PMID: 21679083
PDF is available here.
PDF is available here.
Abstract
The present study aimed to examine the effect of electrode configuration, specifically monopolar (MP) or bipolar (BP) stimulation, on place pitch discrimination in cochlear implants (CIs). Twelve subjects implanted with the Nucleus Freedom device were presented with various pairs of...
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PMID: 21682405
PDF is available here.
PDF is available here.
Abstract
Cochlear implant function, as assessed by psychophysical measures, varies from one stimulation site to another within a patient's cochlea. This suggests that patient performance might be improved by selection of the best-functioning sites for the processor map. In evaluating stimulat...
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PMID: 21682413
PDF is available here.
PDF is available here.
Abstract
Forward-masked psychophysical spatial tuning curves (fmSTCs) were measured in 15 cochlear-implant subjects, 10 using monopolar stimulation and 5 using bipolar stimulation. In each subject, fmSTCs were measured at several probe levels on an apical, middle, and basal electrode using a...
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PMID: 21682414
PDF is available here.
PDF is available here.
Abstract
Bilateral cochlear implant (BiCI) users gain an advantage in noisy situations from a second implant, but their bilateral performance falls short of normal hearing listeners. Channel interactions due to overlapping electrical fields between electrodes can impair speech perception, but...
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PMID: 21682415
PDF is available here.
PDF is available here.
Abstract
We report a case of femoral prosthesis neck fracture in an adult male patient following modular, uncemented total hip arthroplasty. This case report further emphasizes the importance of the potentially high loading situation in the prosthetic femoral neck. On the other hand, the occurrence of a femo...
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PMID: 21846014
PDF is available here.
PDF is available here.
Abstract
A colorectal anastomotic leak can be life-threatening. We have assessed the feasibility of a new intraluminal biodegradable bypass device that we designed to avoid anastomotic leakage and the necessity of a temporary stoma.
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PMID: 21741509
PDF is available here.
PDF is available here.
Abstract
We explore the use of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) for the same. We subjected PEDOT coated electrodes to voltage cycling between -0.6 and 0.8 V, 24 h continuous biphasic stimulation at 3 mC/cm(2) and accelerated aging for four weeks. Characterization was performed usin...
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PMID: 21292598
PDF is available here.
PDF is available here.
Abstract
Aortic homografts were compared with pulmonary homografts in the setting of right ventricular outflow tract reconstruction in adolescent sheep. Furthermore, clinically available stentless porcine and bovine xenografts were studied as an alternative to homografts.
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PMID: 21093875
PDF is available here.
PDF is available here.
Progrès en Urologie (21)6 2011
Abstract
Evaluation of the effectiveness and tolerance of thermoformable metallic spiral stents Memokath(®) 051 (Bard, Pnn Medical) in the treatment of localized ureteral stenosis in non-operable patients who have JJ ureteral stents.
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PMID: 21620300
PDF is available here.
PDF is available here.
Abstract
We aimed to apply this concept to a three-dimensional full silk fibroin (SF) hybrid scaffold system, which comprised of knitted SF and aligned SF electrospun fibers (SFEFs), for ligament tissue engineering applications. Specifically, knitted SF, which contributed to the mechanical robustness of the...
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PMID: 21501090
PDF is available here.
PDF is available here.
Abstract
Implantation of the AT LISA toric IOL using corneal incisions <2.2 mm provides excellent predictability for astigmatic correction.
Copyright 2011, SLACK Incorporated....
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PMID: 21598872
PDF is available here.
PDF is available here.
Abstract
Self expanding metal stents (SEMS) are an established treatment in the management of malignant obstructing lesions throughout the gastrointestinal tract. SEMS have been utilized both as palliation in and as a bridge to surgical resection for malignant colonic obstruction. Many studies have demonstrat...
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PMID: 21587148
PDF is available here.
PDF is available here.
Abstract
We applied acid oxidative digestion to our trace metal analysis protocol, which found significantly higher levels of metal ion concentrations in blood and synovial fluid than a non-digestive method. Patients were subcategorised by mode of failure as either 'unexplained pain' or 'defined causes'. Usi...
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PMID: 21586770
PDF is available here.
PDF is available here.
Abstract
Four uncemented Symax hip stems were extracted at three weeks and nine, 13 and 32 months, respectively, for reasons other than loosening. The reasons for implant removal were infection in two cases, recurrent dislocation in one and acetabular fracture in one. They were analysed to assess the effect a...
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PMID: 21586774
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to analyze our initial experience with Cardiatis multilayer flow modulator and value its efficacy in the treatment of visceral artery aneurysms (VAA) at one and six months follow up in terms of aneurysms exclusion, patency of collateral vessels (when present) and shrinkage o...
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PMID: 21577186
PDF is available here.
PDF is available here.
Abstract
Visceral artery aneurysms is a rare but important condition associated with significant mortality when rupture occurs. Technological advance has increased the role endovascular therapy plays in their management, particularly in patients whom surgery is considered to pose significant risk. Maintenance...
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PMID: 21577187
PDF is available here.
PDF is available here.
Abstract
We thus appraised the prognostic role of left ventricular ejection fraction (LVEF) in patients undergoing PCI for ULM with drug-eluting stents (DES).
Consecutive eligible subjects were retrospectively enrolled in a national registry. Patients were divided into three groups: LVEF < ...
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PMID: 21128078
PDF is available here.
PDF is available here.
Abstract
We noted a statistically significant increase in both average pain and function sub-scores. Postoperative range of motion averaged 4.5 degrees of dorsiflexion and 35 degrees of plantarflexion. Ninety-two percent of the patients were satisfied with their outcome. Ten patients (13%) developed concerni...
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PMID: 21733455
PDF is available here.
PDF is available here.