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https://www.readbyqxmd.com/read/28328732/reliable-method-for-avoiding-malrotation-deformity-after-intramedullary-nailing-of-comminuted-femur-fractures-clinical-validation-of-a-previously-described-technique
#1
Ashoke Sathy, Jonathan C Barnwell, Sean N Shahrestani, Daniel Moore
OBJECTIVES: To evaluate a previously described technique using the inherent anteversion of intramedullary nail (IMN) to avoid malrotation in comminuted femur fractures and describe the use of magnetic resonance imaging (MRI) as an alternative method for assessing postoperative femoral version. DESIGN: Prospective consecutive cohort study. SETTING: Level I trauma center. PATIENT/PARTICIPANTS: Twenty-five consecutive patients with comminuted femur fractures (Winquist III/IV, OTA/AO 32-B/32-C) treated by a single surgeon with IMN between September 1, 2011, and February 28, 2015...
April 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28328561/does-orientation-of-the-femoral-head-affect-acetabular-development-an-experimental-study-in-lamb
#2
Luis Moraleda, Christian Bravo, Francisco Forriol, Javier Albiñana
BACKGROUND: Derotational osteotomy of the proximal femur has proved to be effective in the treatment of residual acetabular dysplasia. However, the reason why this osteotomy is effective remains debatable. The purpose of this study is to investigate if an alteration of femoral head orientation affects acetabular growth. METHODS: A proximal femoral osteotomy was performed in 21 lambs aged 3 months: 5 varus osteotomies (110 degrees), 4 valgus osteotomies (150 degrees), and 12 derotation osteotomies...
March 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28302428/comparison-of-intraoperative-fluoroscopic-dunn-view-with-magnetic-resonance-imaging-to-determine-femoral-version
#3
Cara Beth Lee, Hillard T Spencer
PURPOSE: To compare femoral version measured with a fluoroscopic Dunn view taken at the time of hip arthroscopy with values derived from axial magnetic resonance imaging (MRI) scans. METHODS: Of 159 hip arthroscopies performed from January 2014 through March 2015, 50 patients had magnetic resonance imaging (MRI) scans with a protocol that incorporates femoral version analysis. Dunn views are performed as a routine part of the preoperative fluoroscopic examination at the time of arthroscopy...
March 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28291651/challenges-in-total-hip-arthroplasty-in-the-setting-of-developmental-dysplasia-of-the-hip
#4
Eric M Greber, Christopher E Pelt, Jeremy M Gililland, Mike B Anderson, Jill A Erickson, Christopher L Peters
BACKGROUND: Developmental dysplasia of the hip (DDH) is a recognized cause of secondary arthritis, which may eventually lead to total hip arthroplasty (THA). An understanding of the common acetabular and femoral morphologic abnormalities will aid the surgeon in preparing for the complexity of the surgical case. METHODS: We present the challenges associated with acetabular and femoral morphologies that may be present in the dysplastic hip and discuss surgical options to consider when performing THA...
February 22, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28255504/usefulness-of-urinoculture-to-patients-with-dementia-and-femoral-neck-fracture-at-admission-to-hospital-preliminary-results
#5
Laura Garcia-Nuño, Carlos Villamil, Araceli González-Cuevas, David Martí, Silvia Capilla, Maria José Vives, Xavier Oncins, Pere Torner, Juan Castellanos, Lluís Font-Vizcarra
INTRODUCTION: While preoperative urinary tract infection (UTI) has the potential to cause bacteremia and postsurgical acute prosthetic joint infections (APJIs), the influence of asymptomatic bacteriuria (AB) in these infections remains unclear. So the majority of guidelines not recommend the treatment of AB prior to the surgery. However, as patients with dementia usually cannot explain the symptoms of dysuria, the differential diagnosis between AB and UTI may be very difficult in this group of patients...
March 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/28246095/explant-analysis-of-the-biomet-magnum-recap-metal-on-metal-hip-joint
#6
S C Scholes, B J Hunt, V M Richardson, D J Langton, E Smith, T J Joyce
OBJECTIVES: The high revision rates of the DePuy Articular Surface Replacement (ASR) and the DePuy ASR XL (the total hip arthroplasty (THA) version) have led to questions over the viability of metal-on-metal (MoM) hip joints. Some designs of MoM hip joint do, however, have reasonable mid-term performance when implanted in appropriate patients. Investigations into the reasons for implant failure are important to offer help with the choice of implants and direction for future implant designs...
February 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28244927/accuracy-and-reliability-of-computed-tomography-and-magnetic-resonance-imaging-compared-with-true-anatomic-femoral-version
#7
Michael J Beebe, James D Wylie, Bill G Bodine, Ashley L Kapron, Travis G Maak, Omer Mei-Dan, Stephen K Aoki
BACKGROUND: Abnormal torsion of the femur is correlated to lower extremity pathologies. Although computed tomography (CT) scan is the gold standard torsional measurement, magnetic resonance imaging (MRI) is proposed as a viable alternative. Our aim was to determine the accuracy and consistency of MRI and CT femur rotational studies based on 4 described protocols. METHODS: Twelve cadaveric femora were stripped of soft tissue before imaging and physical assessment of torsion...
February 27, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28192825/dynamic-alignment-analysis-in-the-osteoarthritic-knee-using-computer-navigation
#8
Ricardo Larrainzar-Garijo, David Murillo-Vizuete, Raul Garcia-Bogalo, David Escobar-Anton, Lissette Horna-Castiñeiras, Juan Vicente Peralta-Molero
The lower limb alignment is influenced by the geometry of the joint surfaces and surrounding soft tissue tension. The mechanical behavior changes in a normal, osteoarthritic, and postoperative knee. The purpose of this study is to determine the dynamic coronal femoral tibial mechanical angle (FTMA) in osteoarthritic knees using computer navigation. The authors hypothesize that there are different varus-valgus patterns between flexion and extension in the osteoarthritic knee. We conducted a transversal observational study and included patients with osteoarthritis who underwent primary navigation TKA (Orthopilot version 4...
February 13, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28160028/one-stage-bilateral-implantation-of-a%C3%A2-calcar-guided-short-stem-in%C3%A2-total-hip-arthroplasty-minimally-invasive-modified-anterolateral-approach-in-supine-position
#9
K P Kutzner, S Donner, M Schneider, J Pfeil, P Rehbein
OBJECTIVE: One-stage bilateral, muscle-preserving, calcar-guided implantation technique through the modified minimally invasive anterolateral approach in supine position. INDICATIONS: Bilateral primary/secondary osteoarthritis of the hip; bilateral femoral head necrosis; ASA I-III. CONTRAINDICATIONS: ASA IV; severe osteoporosis, other factors jeopardizing stable anchorage of cementless, calcar-guided short-stem; infection. SURGICAL TECHNIQUE: Supine position...
February 3, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28144820/a-preclinical-numerical-assessment-of-a-polyetheretherketone-femoral-component-in-total-knee-arthroplasty-during-gait
#10
Lennert de Ruiter, Dennis Janssen, Adam Briscoe, Nico Verdonschot
BACKGROUND: Conventional total knee replacement designs show high success rates but in the long term, the stiff metal components may affect bone quality of the distal femur. In this study we introduce an all-polymer total knee replacement device containing a PEEK femoral component on an UHMWPE tibial implant and study its mechanical integrity, fixation, and stress shielding of the periprosthetic femur. METHODS: The implant was analysed in finite element simulations of level gait, adopted from the ISO 14243-1 standard...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28128285/differentially-expressed-genes-and-canonical-pathway-expression-in-human-atherosclerotic-plaques-tampere-vascular-study
#11
Miska Sulkava, Emma Raitoharju, Mari Levula, Ilkka Seppälä, Leo-Pekka Lyytikäinen, Ari Mennander, Otso Järvinen, Rainer Zeitlin, Juha-Pekka Salenius, Thomas Illig, Norman Klopp, Nina Mononen, Reijo Laaksonen, Mika Kähönen, Niku Oksala, Terho Lehtimäki
Cardiovascular diseases due to atherosclerosis are the leading cause of death globally. We aimed to investigate the potentially altered gene and pathway expression in advanced peripheral atherosclerotic plaques in comparison to healthy control arteries. Gene expression analysis was performed (Illumina HumanHT-12 version 3 Expression BeadChip) for 68 advanced atherosclerotic plaques (15 aortic, 29 carotid and 24 femoral plaques) and 28 controls (left internal thoracic artery (LITA)) from Tampere Vascular Study...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28127618/the-effect-of-valgus-and-varus-femoral-osteotomies-on-measures-of-anteversion-in-the-dog
#12
Rachel W Adams, Brad Gilleland, Farrah Monibi, Samuel P Franklin
OBJECTIVE: To determine whether femoral osteotomies that change frontal plane alignment without affecting torsion influence anteversion and inclination. METHODS: Femurs without deformity were scanned to create three-dimensional reconstructions. The femoral head-neck axis was identified by placement of a virtual intramedullary pin. A proximal osteotomy was simulated to create three conditions while keeping torsion constant: Normal, Coxa Valga (neck-shaft angle increased by 12°), and Coxa Vara (neck-shaft angle decreased by 12°)...
January 27, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28070260/relationship-between-bone-density-and-biochemical-markers-of-bone-among-two-groups-taking-carbamazepine-and-sodium-valproate-for-epilepsy-in-comparison-with-healthy-individuals-in-yazd
#13
Abolghasem Rahimdel, Ali Dehghan, Mahboubeh Abolhassani Moghadam, Ali Mellat Ardekani
INTRODUCTION: Chronic antiepileptic therapy has been associated with metabolic bone diseases including osteomalacia and osteoporosis. The aim of this study was to determine frequency of changes in biochemical and bone mineral density (BMD) in adults receiving valproaic acid (VPA) & carbamazepine (CBZ). METHODS: In a cross sectional study evaluating adults (age 20-50 y) epileptic patients receiving valproic acid or carbamazepine for at least 2 years. This study was conducted from May 2014 to May 2015 in Shahid Sadoughi Hospital of Yazd University of Medical Science, Yazd, Iran...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28056981/arterial-stiffness-endothelial-and-cognitive-function-in-subjects-with-type-2-diabetes-in-accordance-with-absence-or-presence-of-diabetic-foot-syndrome
#14
Antonino Tuttolomondo, Alessandra Casuccio, Giovanni Guercio, Carlo Maida, Alessandro Del Cuore, Domenico Di Raimondo, Irene Simonetta, Danilo Di Bona, Rosaria Pecoraro, Vittoriano Della Corte, Eliana Gulotta, Gaspare Gulotta, Antonio Pinto
BACKGROUND: Endothelial dysfunction is an early marker of cardiovascular disease so endothelial and arterial stiffness indexes are good indicators of vascular health. We aimed to assess whether the presence of diabetic foot is associated with arterial stiffness and endothelial function impairment. METHODS: We studied 50 subjects with type 2 diabetes mellitus and diabetic foot syndrome (DFS) compared to 50 diabetic subjects without diabetic foot, and 53 patients without diabetes mellitus, by means of the mini mental state examination (MMSE) administered to evaluate cognitive performance...
January 6, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28048517/tu-h-brc-03-evaluation-of-very-high-energy-electron-vhee-beams-in-comparison-to-vmat-and-pbs-treatment-plans
#15
E Schueler, K Eriksson, E Hynning, B Loo, P Maxim
PURPOSE: The aim of this study was to evaluate the performance of very high-energy electron (VHEE) beams in comparison to clinically delivered treatment plans generated with volumetric modulated arc therapy (VMAT) and proton pencil beam scanning (PBS) technology. METHODS: Three clinical cases were selected (prostate, lung, and pediatric CNS). The VHEE plans were calculated in the Monte Carlo EGSnrc code and pencil beam doses were calculated using the DOSxyznrc MC code for 100 and 200 MeV beams...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27993496/no-difference-in-periprosthetic-bone-loss-and-fixation-between-a-standard-length-stem-and-a-shorter-version-in-cementless-total-hip-arthroplasty-a-randomized-controlled-trial
#16
Jörg Schilcher, Ingemar Ivarsson, Rico Perlbach, Lars Palm
BACKGROUND: Cementless femoral stems in total hip arthroplasty provide dependable clinical and radiographic results in the treatment of osteoarthritis. Stem length might affect the preservation of proximal bone stock and stability. We hypothesized that a shorter stem decreases proximal bone loss without affecting implant stability. METHODS: We randomly assigned 60 patients aged between 50 and 70 years to either a standard cementless femoral stem or a 35-mm shorter version...
November 17, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27992642/revision-total-hip-arthroplasty-using-the-cement-in-cement-technique
#17
Derek F Amanatullah, Graham D Pallante, Lorena V Floccari, George I Vasileiadis, Robert T Trousdale
The cement-in-cement technique is useful in the setting of revision total hip arthroplasty (THA), especially to gain acetabular exposure, change a damaged or loose femoral component, or change the version, offset, or length of a fixed femoral component. The goal of this retrospective study was to assess the clinical and radiographic characteristics of revision THA using the cement-in- cement technique. Between 1971 and 2013, a total of 63 revision THAs used an Omnifit (Osteonics, Mahwah, New Jersey) or Exeter (Howmedica, Mahwah, New Jersey) stem and the cement-in-cement technique at the senior author's institution...
December 19, 2016: Orthopedics
https://www.readbyqxmd.com/read/27957636/bony-morphology-of-the-hip-in-professional-ballet-dancers-compared-to-athletes
#18
Susan Mayes, April-Rose Ferris, Peter Smith, Andrew Garnham, Jill Cook
OBJECTIVES: To compare hip bony morphology between ballet dancers and a sporting control group and to determine the relationship with hip pain. METHODS: Thirty-three professional ballet dancers and 33 age- and sex-matched athletes completed questionnaires, including the Copenhagen Hip and Groin Outcome Score (HAGOS), and underwent clinical testing and 3.0-T magnetic resonance imaging to measure acetabular coverage with lateral centre edge angles, femoral head-neck junction concavity with alpha angles at anterior and superior positions, femoral neck-shaft angles, and acetabular version angles...
December 12, 2016: European Radiology
https://www.readbyqxmd.com/read/27927616/safety-of-hip-anchor-insertion-from-the-midanterior-and-distal-anterolateral-portals-with-a-straight-drill-guide
#19
Ryan M Degen, Lazaros Poultsides, Stephanie W Mayer, Angela E Li, Struan H Coleman, Anil S Ranawat, Danyal H Nawabi, Bryan T Kelly
BACKGROUND: During arthroscopic labral refixation, suture anchors are typically inserted from either the midanterior (MA) portal or the distal anterolateral (DALA) portal; however, no studies have previously compared these techniques. Purpose/Hypothesis: The purpose of this study was to compare acetabular rim accessibility and associated complication rates of anchor insertion from these portals. We hypothesized that rim access would be better from the DALA portal. Additionally, we hypothesized that articular surface perforation would occur more commonly from the MA portal while psoas tunnel perforation would occur more commonly from the DALA portal...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27900304/clinical-outcome-of-design-modifications-to-the-cls-spotorno-stem-in-total-hip-replacement
#20
Angelo Graceffa, Pier Francesco Indelli, Leonardo Latella, Paolo Poli, Alexander Fulco, Massimiliano Marcucci
PURPOSE: historically, the original CLS Spotorno Stem has demonstrated excellent survival. The design of this stem was recently modified, resulting in the introduction of a shorter, modular version (CLS Brevius). The purpose of the current study was to evaluate the functional, radiological and survivorship outcomes of the cementless CLS Brevius Stem in a multi-surgeon, single center, consecutive series study at two years post-surgery. METHODS: the Authors performed 170 total hip arthroplasties in 155 patients using the shorter, triple-taper stem design (CLS Brevius)...
July 2016: Joints
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