Publications by authors named "Fender D"

Purpose: To determine the prevalence of scoliosis in patients who have undergone surgical repair of CDH and attempt to assess the aetiology of scoliosis in affected cases.

Methods: A prospectively collected database of patients with CDH treated in a single centre between 1997 and 2023 was reviewed. Cases with adequate records who continued to reside locally having survived beyond age 2 and > 2 years following CDH repair were included.

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Purpose: Determine the performance of MAGEC X rods through retrieval analysis and comparison with clinical data.

Methods: A multicentre explant database was searched to identify cases using MAGEC X device. Clinical and surgical data was gathered prospectively.

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Purpose: Determine the incidence of metallosis around MAGEC rods.

Methods: A multicentre explant database was searched to identify cases with complete intraoperative findings at rod removal. Surgeons removing rods detailed the presence or absence of tissue metallosis associated with rods.

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Study Design: Analysis of explanted MAGnetic Expansion Control (MAGEC) growing rods.

Objective: The aim of this study was to quantify the rate of locking pin breakage in explanted MAGEC rods and compare with the manufacturer's data.

Summary Of Background Data: On June 25, 2019, NuVasive released an Urgent Field Safety Notice stating that MAGEC rods manufactured before March 26, 2015 had a higher than expected locking pin breakage rate of 5%.

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Study Design: Laboratory analysis of explanted MAGnetic Expansion Control (MAGEC) rods.

Objective: The aim of this study was to identify the in vivo lengthening of MAGEC rods.

Summary Of Background Data: Little data is available regarding the lengthening achieved by MAGEC rods.

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Purpose: The specificity of a selective nerve root block (SNRB) is dependant on isolating only the required nerve root whilst avoiding injectate flow to traversing nerves. Needle tip position is therefore crucial. Nerve root blocks (SNRBs) in the presence of deformity can be particularly technically challenging to perform.

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Background: Spondylodiscitis is commonly caused by aerobic bacteria. Of all the spinal infections, anaerobic organisms account for less than 3% and are usually seen in postoperative patients.

Case Description: We report a rare case of spontaneous onset of spondylodiscitis caused by anaerobe Prevotella that led to the diagnosis of serous cystadenofibroma of the ovaries.

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Study Design: A series of patients with scoliosis undergoing endoscopic anterior instrumentation and fusion undertaking repeated pulmonary function assessments.

Objective: To assess recovery of pulmonary function in the 2 years following endoscopic anterior scoliosis correction.

Summary Of Background Data: Recent studies have found that pulmonary function returns to preoperative levels 12-24 months following endoscopic anterior scoliosis correction, and a small improvement in forced expiratory volume (FEV1) has also been reported.

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Using the Trent regional arthroplasty register, we analysed the survival at ten years of 1198 consecutive Charnley total hip replacements carried out across a single health region of the United Kingdom in 1990. At ten years, information regarding outcome was available for 1001 hips (83.6%).

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Using a regional arthroplasty register, we assessed the outcome, at five years, of 1198 primary Charnley total hip replacements (THRs) undertaken across a single health region in England in 1990. An independent clinical and radiological assessment was completed for 497 operations, carried out in 18 different hospitals, under the care of 56 consultants and by differing grades of surgeon. The overall number of failures in this group was 44 (8.

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Problem: There is increasing interest in delivering degree programs without requiring students to attend traditional classroom-based classes. There are many differences between classroom and distance courses that must be addressed to have effective distance programs.

Method: Occupational safety and health faculty and occupational safety and health professionals were surveyed to determine the need for graduate occupational safety and health programs, delivered by means of distance education, and the best means to deliver the program from the perspective of faculty and working occupational safety and health professionals.

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Regardless of age or race, more patients preferred peritoneal dialysis (PD) than would be expected from the current ratio of patients treated with PD in the U.S. The percent of patients choosing PD seems to be largely influenced by the scope of information they receive prior to therapy initiation.

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The radiological features of the cement mantle around total hip replacements (THRs) have been used to assess aseptic loosening. In this case-control study we investigated the risk of failure of THR as predictable by a range of such features using data from patients recruited to the Trent Regional Arthroplasty Study (TRAS). An independent radiological assessment was undertaken on Charnley THRs with aseptic loosening within five years of surgery and on a control group from the TRAS database.

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We have assessed the usefulness of a regional hip register in the assessment of the outcome of primary total hip replacement (THR). Over 97% of THRs performed in the Trent region in 1990 were captured onto the register and the inaccuracies recorded were less than 1.8%.

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Using a regional arthroplasty register we assessed the outcome at five years of 1198 primary Charnley total hip replacements (THRs) carried out in 1152 patients across a single UK health region in 1990. Information regarding outcome was available for 1080 hips (90%) and 499 had an independent clinical and radiological assessment. By five years the known rate of aseptic loosening was 2.

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As part of the National Study of Primary Hip Replacement Outcome, 402 consultant orthopaedic surgeons from three regions were contacted by postal questionnaire which covered all aspects of total hip replacement (THR). There was a 70% response rate of which 71 did not perform hip surgery, a further 33 refused to take part, leaving 181 valid responses. Preoperative assessment clinics were used by 89% of surgeons, but anaesthetists and rehabilitation services were rarely involved at this stage.

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Of the chronic mental disabilities of childhood, autism is causally least well understood. The former view that autism was rooted in exposure to humorless and perfectionistic parenting has given way to the notion that genetic influences are dominant underlying factors. Still, identification of specific heritable factors has been slow with causes identified in only a few cases in unselected series.

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The human dental arch form is shown to be accurately represented mathematically by the beta function. The average correlation coefficient between measured arch-shape data and the mathematical arch shape, expressed by the beta function, is 0.98 with a standard deviation of 0.

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We calculated the rates for perioperative mortality and fatal pulmonary embolism (PE) after primary total hip replacement in a single UK health region, using a regional arthroplasty register and the tracing service of the Office of National Statistics. During 1990, there were 2111 consecutive primary replacements in 2090 separate procedures. Within 42 days of operation a total of 19 patients had died (0.

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This article is a review of the evolution of models of the head as used in dipole source localization. Models fall into two classes: those that can be expressed in simple analytic form, such as the homogeneous sphere or spherical three-shell models, or those that can only be solved by numerical methods, such as the finite element approach. The latter models always involve heavy procedural and computational burdens.

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