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Acta Orthopaedica

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https://www.readbyqxmd.com/read/29757058/outcomes-following-hip-and-knee-replacement-in-diabetic-versus-nondiabetic-patients-and-well-versus-poorly-controlled-diabetic-patients-a-prospective-cohort-study
#1
Erik Lenguerrand, Andrew D Beswick, Michael R Whitehouse, Vikki Wylde, Ashley W Blom
Background and purpose - The impact of diabetes and glycemic control before joint replacement on clinical and patient-reported outcomes is unclear. We compared pain, function, complications, and length of hospital stay in diabetic and nondiabetic patients receiving primary total hip (THR) or knee replacement (TKR) and compared these outcomes in patients with poorly controlled versus well-controlled diabetes. Patients and methods - We conducted a prospective cohort study of patients undergoing primary THR (n = 300) or TKR (n = 287) for osteoarthritis...
May 14, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29745741/teaching-basic-trauma-validating-fluorosim-a-digital-fluoroscopic-simulator-for-guide-wire-insertion-in-hip-surgery
#2
Kapil Sugand, Robert A Wescott, Richard Carrington, Alister Hart, Bernard H Van Duren
Background and purpose - Simulation is an adjunct to surgical education. However, nothing can accurately simulate fluoroscopic procedures in orthopedic trauma. Current options for training with fluoroscopy are either intraoperative, which risks radiation, or use of expensive and unrealistic virtual reality simulators. We introduce FluoroSim, an inexpensive digital fluoroscopy simulator without the need for radiation. Patients and methods - This was a multicenter study with 26 surgeons in which everyone completed 1 attempt at inserting a guide-wire into a femoral dry bone using surgical equipment and FluoroSim...
May 10, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29741133/peri-apatite-coating-decreases-uncemented-tibial-component-migration-long-term-rsa-results-of-a-randomized-controlled-trial-and-limitations-of-short-term-results
#3
Koen T Van Hamersveld, Perla J Marang-Van De Mheen, Rob G H H Nelissen, Sören Toksvig-Larsen
Background and purpose - Biological fixation of uncemented knee prostheses can be improved by applying hydroxyapatite coating around the porous surface via a solution deposition technique called Peri-Apatite (PA). The 2-year results of a randomized controlled trial, evaluating the effect of PA, revealed several components with continuous migration in the second postoperative year, particularly in the uncoated group. To evaluate whether absence of early stabilization is diagnostic of loosening, we now present long-term follow-up results...
May 9, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29739264/a-2-year-rsa-study-of-the-vanguard-cr-total-knee-system-a-randomized-controlled-trial-comparing-patient-specific-positioning-guides-with-conventional-technique
#4
Frank-David Øhrn, Justin Van Leeuwen, Masako Tsukanaka, Stephan M Röhrl
Background and purpose - There is some concern regarding the revision rate of the Vanguard CR TKA in 1 registry, and the literature is ambiguous about the efficacy of patient-specific positioning guides (PSPGs). The objective of this study was to investigate the stability of the cemented Vanguard CR Total Knee using 2 different surgical techniques. Our hypothesis was that there is no difference in migration when implanting the Vanguard CR with either PSPGs or conventional technique. We hereby present a randomized controlled trial of 2-year follow-up with radiostereometric analysis (RSA)...
May 9, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29723072/5-year-old-child-with-late-discovered-traumatic-patellar-tendon-rupture-a-case-report
#5
Jesper Holbeck-Brendel, Ole Rahbek
No abstract text is available yet for this article.
May 3, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29714073/migration-of-all-polyethylene-compared-with-metal-backed-tibial-components-in-cemented-total-knee-arthroplasty
#6
Koen T Van Hamersveld, Perla J Marang-Van De Mheen, Rob G H H Nelissen, Sören Toksvig-Larsen
Background and purpose - With a rapidly increasing population in need of total knee arthroplasty (TKA), there is renewed interest in cost-saving all-polyethylene designs. Differences between metal-backed and all-polyethylene designs in initial component migration assessed by radiostereometric analysis (RSA), a proven predictor for late aseptic loosening, have been scantily reported. The purpose of this study was to compare implant migration and clinical outcomes of all-polyethylene tibial components versus metal-backed trays of similar geometrical shape...
May 1, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29714072/do-we-have-an-opioid-crisis-in-scandinavia-time-to-act
#7
Marcus Heilig, Magnus Tägil
No abstract text is available yet for this article.
May 1, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29714070/knee-extensor-muscle-weakness-and-radiographic-knee-osteoarthritis-progression
#8
Andrea Dell'isola, Wolfgang Wirth, Martijn Steultjens, Felix Eckstein, Adam G Culvenor
Background and purpose - Knee extensor (KE) muscle weakness is a modifiable feature commonly observed in individuals with knee osteoarthritis (KOA) and constitutes a potential target for patient-specific interventions. Therefore, in this study, we explored whether KE weakness is associated with radiographic (medial and/or lateral) KOA progression and how this relationship differs depending on frontal plane knee alignment and sex. Patients and methods - We studied 3,075 knees (1,961 participants, 58% female) from the Osteoarthritis Initiative with radiographic Kellgren-Lawrence grade 1-3...
May 1, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29635971/osteochondral-lesions-of-the-talus
#9
Sang Gyo Seo, Jin Soo Kim, Dong-Kyo Seo, You Keun Kim, Sang-Hoon Lee, Ho Seong Lee
Background and purpose - The frequency of progression of osteoarthritis and persistence of symptoms in untreated osteochondral lesion of the talus (OCL) is not well known. We report the outcome of a nonoperative treatment for symptomatic OCL. Patients and methods - This study included 142 patients with OCLs from 2003 to 2013. The patients did not undergo immobilization and had no restrictions of physical activities. The mean follow-up time was 6 (3-10) years. Initial MRI and CT confirmed OCL and showed lesion size, location, and stage of the lesion...
April 11, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29635970/bone-mineral-density-changes-in-the-graft-after-acetabular-impaction-bone-grafting-in-primary-and-revision-hip-surgery
#10
Davey M J M Gerhardt, Enrico De Visser, Baudewijn W Hendrickx, Berend W Schreurs, Job L C Van Susante
Background and purpose - Impaction bone grafting (IBG) is an established method in hip revision surgery to reconstruct loss of bone stock. There is limited knowledge concerning the actual bone remodelling process within the allograft. We investigated with repeated bone mineral density (BMD) measurements the biological process of bone remodelling in the allograft in vivo. We hypothesized that an initial decrease in BMD would be followed by an increase towards baseline values. Patients and methods - Dual-energy X-ray absorptiometry (DXA) was used to measure BMD values in 3 regions of interest (ROI) in 20 patients (average age at surgery 70 years, 11 males) after an acetabular reconstruction with IBG and a cemented cup...
April 11, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29621916/is-gain-in-health-related-quality-of-life-after-a-total-hip-arthroplasty-depended-on-the-comorbidity-burden
#11
Eva N Glassou, Alma B Pedersen, Peter K Aalund, Sebastian B Mosegaard, Torben B Hansen
Background and purpose - Using patient-reported health-related quality of life (HRQoL), approximately 10% of patients report some degree of dissatisfaction after a total hip arthroplasty (THA). The preoperative comorbidity burden may play a role in predicting which patients may have limited benefit from a THA. Therefore, we examined whether gain in HRQoL measured with the EuroQol-5D (EQ-5D) at 3 and 12 months of follow-up depended on the comorbidity burden in THA patients Patients and methods - 1,582 THA patients treated at the Regional Hospital West Jutland from 2008 to 2013 were included...
April 6, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29589480/threshold-values-of-ankle-dorsiflexion-and-gross-motor-function-in-60-children-with-cerebral-palsy
#12
Helle M Rasmussen, Joachim Svensson, Maria Thorning, Niels W Pedersen, Søren Overgaard, Anders Holsgaard-Larsen
Background and purpose - Threshold values defining 3 categories of passive range of motion are used in the Cerebral Palsy follow-Up Program to guide clinical decisions. The aim of this study was to investigate the threshold values by testing the hypothesis that passive range of motion in ankle dorsiflexion is associated with gross motor function and that function differs between the groups of participants in each category. Patients and methods - We analyzed data from 60 ambulatory children (aged 5-9 years) with spastic cerebral palsy...
March 28, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29589467/meta-analysis-of-individual-registry-results-enhances-international-registry-collaboration
#13
Elizabeth W Paxton, Maziar Mohaddes, Inari Laaksonen, Michelle Lorimer, Stephen E Graves, Henrik Malchau, Robert S Namba, John Kärrholm, Ola Rolfson, Guy Cafri
Background and purpose - Although common in medical research, meta-analysis has not been widely adopted in registry collaborations. A meta-analytic approach in which each registry conducts a standardized analysis on its own data followed by a meta-analysis to calculate a weighted average of the estimates allows collaboration without sharing patient-level data. The value of meta-analysis as an alternative to individual patient data analysis is illustrated in this study by comparing the risk of revision of porous tantalum cups versus other uncemented cups in primary total hip arthroplasties from Sweden, Australia, and a US registry (2003-2015)...
March 28, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29577791/automated-detection-and-classification-of-the-proximal-humerus-fracture-by-using-deep-learning-algorithm
#14
Seok Won Chung, Seung Seog Han, Ji Whan Lee, Kyung-Soo Oh, Na Ra Kim, Jong Pil Yoon, Joon Yub Kim, Sung Hoon Moon, Jieun Kwon, Hyo-Jin Lee, Young-Min Noh, Youngjun Kim
Background and purpose - We aimed to evaluate the ability of artificial intelligence (a deep learning algorithm) to detect and classify proximal humerus fractures using plain anteroposterior shoulder radiographs. Patients and methods - 1,891 images (1 image per person) of normal shoulders (n = 515) and 4 proximal humerus fracture types (greater tuberosity, 346; surgical neck, 514; 3-part, 269; 4-part, 247) classified by 3 specialists were evaluated. We trained a deep convolutional neural network (CNN) after augmentation of a training dataset...
March 26, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29537343/incidence-of-scoliosis-in-cerebral-palsy
#15
Gunnar Hägglund, Katina Pettersson, Tomasz Czuba, Måns Persson-Bunke, Elisabet Rodby-Bousquet
Background and purpose - Surveillance of scoliosis in individuals with cerebral palsy (CP) is important for ensuring timely diagnosis and identification of curve progression. We analyzed the incidence of scoliosis in relation to age, sex, and gross motor function in a population-based cohort of individuals with CP. Patients and methods - This was a prospective register study of all 1,025 individuals born 1990-2012 in southern Sweden (1.4 million inhabitants) in the Swedish surveillance program for CP, which included >95% of the total population of people with CP in the area...
March 14, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29537342/high-risk-for-revision-after-shoulder-arthroplasty-for-failed-osteosynthesis-of-proximal-humeral-fractures
#16
Marc Randall Kristensen, Jeppe Vejlgaard Rasmussen, Brian Elmengaard, Steen Lund Jensen, Bo Sanderhoff Olsen, Stig Brorson
Background and purpose - It is unclear whether previous osteosynthesis is a risk factor for inferior outcome following shoulder arthroplasty for a proximal humeral fracture. We used data from the Danish Shoulder Arthroplasty Registry (DSR) to examine this question. Patients and methods - All 285 patients treated with a shoulder arthroplasty after failed osteosynthesis of a proximal humeral fracture reported to DSR from 2006 to 2013 were included. Each case was matched with 2 controls (570) treated with a primary shoulder arthroplasty for an acute proximal humeral fracture...
March 14, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29528754/the-effect-of-surgeon-s-preference-for-hybrid-or-cemented-fixation-on-the-long-term-survivorship-of-total-knee-replacement
#17
Christopher J Vertullo, Stephen E Graves, Yi Peng, Peter L Lewis
Background and purpose - Recent direct comparative reports suggest that hybrid fixation may have a similar or superior outcome to cemented fixation in total knee replacement (TKR); however, a paucity of long-term data exists. To minimize the confounders of a direct comparison, we performed an instrumental variable analysis examining the revision rate of 2 cohorts of patients based on their surgeon's preference for cemented or hybrid fixation. Methods - Registry data were obtained from 1999 until 2015 for 2 cohorts of patients who received minimally stabilized TKR, defined as those treated by high-volume hybrid fixation preferring surgeons, designated routinely hybrid (RH), and those treated by high-volume cemented fixation preferring surgeons, designated routinely cemented (RC)...
March 12, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29726760/are-competing-risks-models-appropriate-to-describe-implant-failure
#18
Jonas Ranstam
No abstract text is available yet for this article.
June 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29726759/20-years-of-porous-tantalum-in-primary-and-revision-hip-arthroplasty-time-for-a-critical-appraisal
#19
Nils Hailer
No abstract text is available yet for this article.
June 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/29521181/obesity-related-metabolic-and-endocrine-disorders-diagnosed-during-postoperative-follow-up-of-slipped-capital-femoral-epiphysis
#20
Hanifi Ucpunar, Ismet Yalkin Camurcu, Serda Duman, Esra Ucpunar, Hakan Sofu, Avni Ilhan Bayhan
Background and purpose - Patients with slipped capital femoral epiphysis (SCFE) are phenotypically overweight or obese and may therefore require clinical follow-up of obesity-related disorders. We evaluated obesity-related disorders such as dyslipidemia, type 2 diabetes mellitus (DM), and vitamin-D deficiency during the postoperative period in patients with SCFE. Patients and methods - 51 patients who were operated and followed-up for SCFE and 62 healthy adolescents without SCFE (control group) were included in this retrospective study...
June 2018: Acta Orthopaedica
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