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https://www.readbyqxmd.com/read/27920583/intellijoint-hip-%C3%A2-a-3d-mini-optical-navigation-tool-for-improving-intraoperative-accuracy-during-total-hip-arthroplasty
#1
Wayne G Paprosky, Jeffrey M Muir
Total hip arthroplasty is an increasingly common procedure used to address degenerative changes in the hip joint due to osteoarthritis. Although generally associated with good results, among the challenges associated with hip arthroplasty are accurate measurement of biomechanical parameters such as leg length, offset, and cup position, discrepancies of which can lead to significant long-term consequences such as pain, instability, neurological deficits, dislocation, and revision surgery, as well as patient dissatisfaction and, increasingly, litigation...
2016: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/27917815/sleep-quality-differs-between-athletes-and-non-athletes
#2
Havva Demirel
PURPOSE: Sufficient sleep or sleep of sufficient quality is essential for the health of children, adolescents and adults, as sleep influences almost all dimensions of life. The purpose of this study was to investigate the possible positive effects of sportsmanship on sleep quality and to assess the possible differences in sleep quality between athletes and non-athletes. METHODS: Sedentary or non-athletes subjects (n=103) and athletes (n=93) participated in this study...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27896435/course-of-pelvic-lift-during-total-hip-arthroplasty
#3
Steffen Brodt, Dimitri Nowack, Linda Krakow, Christoph Windisch, Georg Matziolis
INTRODUCTION: The position of the cup makes a major contribution to the success of total hip arthroplasty (THA). In conventional implantation of the prosthesis without navigation, the surgeon relies on the spatial position of the pelvis. However, iatrogenic manipulation of the pelvis during different surgical steps constantly changes the position of the pelvis during the operation. The position of the pelvis is substantial for the correct placement of the cup. The objective of this study was to investigate and visualize the course of this pelvic lift and correlate it to certain surgical steps...
November 28, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27886354/a-retrospective-analysis-of-the-merits-and-challenges-associated-with-simultaneous-bilateral-tha-using-the-direct-anterior-approach
#4
Matthew L Brown, Johannes F Plate, David C Holst, Daniel N Bracey, Matthew W Bullock, Jason E Lang
INTRODUCTION: 15%-20% of patients presenting for total hip arthroplasty (THA) have bilateral disease. While simultaneous bilateral THA is of interest to patients and surgeons, debate persists regarding its merits. The majority of previous reports on simultaneous bilateral THA involve patients in the lateral decubitus position, which require repositioning, prepping and draping, and exposure of a fresh wound to pressure and manipulation for the contralateral THA. The purpose of this study was to compare complications, component position, and financial parameters for simultaneous versus staged bilateral THAs using the direct anterior approach (DAA)...
November 14, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27879150/acetabular-cup-position-and-risk-of-dislocation-in-primary-total-hip-arthroplasty
#5
Kurt G Seagrave, Anders Troelsen, Henrik Malchau, Henrik Husted, Kirill Gromov
Background and purpose - Hip dislocation is one of the most common complications following total hip arthroplasty (THA). Several factors that affect dislocation have been identified, including acetabular cup positioning. Optimal values for cup inclination and anteversion are debatable. We performed a systematic review to describe the different methods for measuring cup placement, target zones for cup positioning, and the association between cup positioning and dislocation following primary THA. Methods - A systematic search of literature in the PubMed database was performed (January and February 2016) to identify articles that compared acetabular cup positioning and the risk of dislocation...
November 23, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27858241/repeated-posterior-dislocation-of-total-hip-arthroplasty-after-spinal-corrective-long-fusion-with-pelvic-fixation
#6
Hiroki Furuhashi, Daisuke Togawa, Hiroshi Koyama, Hironobu Hoshino, Tatsuya Yasuda, Yukihiro Matsuyama
PURPOSE: Several reports have indicated that anterior dislocation of total hip arthroplasty (THA) can be caused by spinal degenerative changes with excessive pelvic retroversion. However, no reports have indicated that posterior dislocation can be caused by fixed pelvic anteversion after corrective spine surgery. We describe a rare case experiencing repeated posterior THA dislocation that occurred at 5 months after corrective spinal long fusion with pelvic fixation. METHODS: A 64-year-old woman had undergone bilateral THA at 13 years before presenting to our institution...
November 17, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27853816/total-hip-arthroplasty-using-direct-anterior-approach-and-dual-mobility-cup-safe-and-efficient-strategy-against-post-operative-dislocation
#7
Cécile Batailler, Camdon Fary, Pierre Batailler, Elvire Servien, Philippe Neyret, Sébastien Lustig
AIM: We hypothesize that a dual mobility cup can be safely used via the direct anterior approach, without increasing the risk of complications or incorrect positioning. MATERIALS AND METHODS: This retrospective study compared 201 primary total hip arthroplasties using a dual mobility cup performed via direct anterior approach without a traction table, to 101 arthroplasties performed via posterolateral approach. Implant positioning, function scores, and early complications were recorded...
November 16, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27837333/individual-differences-in-food-cue-responsivity-are-associated-with-acute-and-repeated-cocaine-induced-vocalizations-but-not-cue-induced-vocalizations
#8
Jordan A Tripi, Micheal L Dent, Paul J Meyer
RATIONALE: Individuals prone to attribute incentive salience to food-associated stimuli ("cues") are also more sensitive to cues during drug seeking and drug taking. This may be due in part to a difference in sensitivity to the affective or other stimulus properties of the drug. In rats, these properties are associated with 50-kHz ultrasonic vocalizations (USVs), in that they are elicited during putative positive affective and motivational states, including in response to drugs of abuse...
November 11, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27826701/a-cadaver-study-validating-ct-assessment-of-acetabular-component-orientation-the-perth-ct-hip-protocol
#9
Varun Arora, Richard Hannan, Richard Beaver, Timothy Fletcher, Paul Harvie
OBJECTIVE: The aim was to develop a CT-based protocol to accurately measure post-operative acetabular cup inclination and anteversion establishing which bony reference points facilitate the most accurate estimation of these variables. MATERIALS AND METHODS: An all-polyethylene acetabular liner was implanted into a cadaveric acetabulum. A conventional pelvic CT scan was performed and reformatted images created in both functional and anterior pelvic planes. CT images were transferred to a Freedom-Plus Graphics software package enabling an identical, virtual 3D model of the cadaveric pelvis to be created and definitive acetabular cup orientation established...
November 8, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27822260/seroprevalence-and-risk-factors-for-hepatitis-b-in-an-adult-population-the-first-report-from-birjand-south-khorasan-iran
#10
Masood Ziaee, Azadeh Ebrahimzadeh, Zohreh Azarkar, Mohammad Hasan Namaei, Amin Saburi, Mohammad Fereidouni, Bita Bijari, Mehdi Karamian, Gholamreza Sharifzadeh
BACKGROUND: Infection with the hepatitis B virus (HBV) is an important global health problem. Knowledge of the geographic distribution pattern of HBV infection can help to control the spread of the disease. OBJECTIVES: To determine the prevalence of HBV infections and risk factors for the disease for the first time in Birjand, Southeastern Iran. METHODS: This was an analytical cross-sectional study conducted in 2013 - 2014 of 5235 HBV cases in Birjand, South Khorasan Iran...
September 2016: Hepatitis Monthly
https://www.readbyqxmd.com/read/27820422/the-relation-of-white-on-white-standard-automated-perimetry-short-wavelength-perimetry-and-optic-coherence-tomography-parameters-in-ocular-hypertension
#11
Ceyda Başkan, Özlem G Köz, Rahmi Duman, Sabite E Gökçe, Ahmet A Yarangümeli, Gülcan Kural
PURPOSE: The purpose of this study is to examine the demographics, clinical properties, and the relation between white-on-white standard automated perimetry (SAP), short wavelength automated perimetry (SWAP), and optical coherence tomographic (OCT) parameters of patients with ocular hypertension. MATERIALS AND METHODS: Sixty-one eyes of 61 patients diagnosed with ocular hypertension in the Ankara Numune Education and Research Hospital ophthalmology unit between January 2010 and January 2011 were included in this study...
December 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27816020/human-papillomavirus-detection-in-fine-needle-aspiration-cytology-of-lymph-node-metastasis-of-head-and-neck-squamous-cell-cancer
#12
Robert P Takes, Johannes H A M Kaanders, Carla M L van Herpen, Matthias A W Merkx, Pieter J Slootweg, Willem J G Melchers
BACKGROUND: Currently, testing on HPV in oropharyngeal squamous cell carcinoma (OPSCC) is performed on histological material. However, in a certain percentage of the cases who present with lymph node metastases no primary tumor can be identified and only fine needle aspiration cytology (FNAC) is available for analysis. OBJECTIVES: Purpose of this study was to assess HPV status on FNAC and to validate it using histological material of the same patients. STUDY DESIGN: Patients with cervical metastasis from OPSCC or cancer of an unknown primary tumor (CUP), diagnosed between 2007 and 2012 were included...
December 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27812692/radiotherapy-characteristics-and-outcomes-for-head-and-neck-carcinoma-of-unknown-primary-vs-t1-base-of-tongue-carcinoma
#13
Ali Hosni, Peter R Dixon, Anupam Rishi, Michael Au, Wei Xu, Yuyao Song, Douglas B Chepeha, David P Goldstein, Shao Hui Huang, John Kim, Brian O'Sullivan, John Waldron, Scott V Bratman, John R de Almeida
Importance: Transoral robotic surgery- or transoral laser microsurgery-assisted lingual tonsillectomy may improve the identification rate of hidden base-of-tongue (BOT) carcinoma presenting as head or neck carcinoma of unknown primary (CUP) site. Objective: To evaluate the potential impact of lingual tonsillectomy in CUP site by comparing differences in radiotherapy volumes, dosimetry, and clinical outcomes for CUP site and T1-category BOT carcinoma. Design, Setting, and Participants: Retrospective study of 115 patients treated at a tertiary cancer center between January 1, 2005, and December 31, 2013, that included patients with BOT carcinoma (category T1N1-3M0) and CUP site (category T0N1-3M0) with known p16 status...
November 3, 2016: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27800574/periprosthetic-occult-fractures-of-the-acetabulum-occur-frequently-during-primary-tha
#14
Kazuhiro Hasegawa, Tamon Kabata, Yoshitomo Kajino, Daisuke Inoue, Hiroyuki Tsuchiya
BACKGROUND: Periprosthetic fractures of the acetabulum occurring during primary THA are rare. Periprosthetic occult fractures are defined as those not identified by the surgeon during the procedure which might be missed on a routine postoperative radiograph. However, it is unclear how frequently these fractures occur and whether their presence affects functional recovery. QUESTIONS/PURPOSES: In this study, using routine CT scans that were obtained as part of another primary hip arthroplasty study protocol, we retrospectively assessed (1) the prevalence of occult fractures of the acetabulum occurring during primary THA, (2) the location of occult fractures of the acetabulum during THA, and (3) risk factors contributing to such occult fractures...
October 31, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27800445/dissemination-and-persistence-of-pseudomonas-spp-in-small-scale-dairy-farms
#15
Daniele Michele Nucera, Sara Lomonaco, Patrizia Morra, Marco Francesco Ortoffi, Daniele Giaccone, Maria Ausilia Grassi
This study was aimed at collecting data on presence, dissemination and persistence of Pseudomonas in small-scale dairy farms. Six farms (located in Piedmont) were visited three times over 2014: 116 waters (wells and different faucets/pipes) and 117 environmental samples (milking equipments and drains) were collected. Enumeration of Pseudomonadaceae was performed, 3-5 colonies/samples were selected for identification via 16SrDNA/oprI polymerase chain reaction (PCR), and typed by enterobacterial-repetitive-intergenic-consensus (ERIC)-PCR...
April 19, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/27800113/-predictive-factors-of-aseptic-loosening-of-cemented-total-hip-prostheses
#16
Rateb Kochbati, Hedi Rbai, Marouene Jlailia, Hassen Makhlouf, Abderrazak Bouguira, Med Samir Daghfous
INTRODUCTION: Aseptic loosening is the main long-term complication and indicates total hip replacement failure. There are many and often intricate causes for aseptic loosening. Incorrect placement of the implants is the most incriminated factor. Other patient and implant related factors may also predispose to loosening but to various degrees. METHODS: We conducted a retrospective study of 64 cases with aseptic loosening of total hip prosthesis to individuate patient, implant type and surgical technique related factors leading to aseptic loosening and to provide recommendations to minimize this risk...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27791237/preoperative-planning-of-total-hip-arthroplasty-on-dysplastic-acetabuli
#17
Dror Lakstein, Zachary Tan, Nugzar Oren, Tatu Johannes Mäkinen, Allan E Gross, Oleg Safir
BACKGROUND: When performing total hip arthroplasty (THA) on a dysplastic hip, proper positioning of the acetabular component may not allow for more than 70% coverage. Structural support in the form of an autograft or a high porosity metal augment may be necessary. The purpose of the study was to investigate the value of preoperative templating and deformity classification in predicting cup coverage and the need for structural support. METHODS: 65 cases of THA for DDH were retrospectively analysed...
October 24, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27777916/result-of-modular-necks-in-primary-total-hip-arthroplasty-with-a-average-follow-up-of-four-years
#18
Jemin Yi, Kye Young Han, Young Jun Nam, Keun Woo Kim
PURPOSE: This study aimed to investigate the outcomes of modular neck-utilization in primary total hip arthroplasty (THA). MATERIALS AND METHODS: Thirty patients (34 hips) who had modular stem THA between April 2011 and January 2013 were evaluated. There were 19 men and 11 women with a mean age of 61.2 years at the time of surgery. There were 20 cases of osteonecrosis of femoral head, 7 cases of osteoarthritis, 6 cases of femur neck fracture, and 1 case of rheumatoid arthritis...
September 2016: Hip & Pelvis
https://www.readbyqxmd.com/read/27777505/plasma-endothelin-1-and-single-nucleotide-polymorphisms-of-endothelin-1-and-endothelin-type-a-receptor-genes-as-risk-factors-for-normal-tension-glaucoma
#19
Ewa Kosior-Jarecka, Dominika Wróbel-Dudzińska, Urszula Łukasik, Tin Aung, Chiea Chuen Khor, Janusz Kocki, Tomasz Żarnowski
PURPOSE: The purpose of this study was to determine whether four single nucleotide polymorphisms (SNPs) of endothelin and endothelin receptor type A genes can constitute a risk factor for normal tension glaucoma (NTG) and high tension glaucoma (HTG). METHODS: The study included 160 patients with NTG, 124 patients with HTG, and 165 healthy controls. To analyze the frequency of polymorphic variants of the endothelin EDN gene (K198N) and the endothelin receptor type A gene EDN RA (C1222T, C70G, G231A), DNA was isolated from peripheral blood, and SNP genotyping was performed using the real-time PCR (RT-PCR) method...
2016: Molecular Vision
https://www.readbyqxmd.com/read/27776740/estimating-the-gravity-induced-three-dimensional-deformation-of-the-breast
#20
Chris Mills, Amy Sanchez, Joanna Scurr
As human breast tissue is continuously deformed by gravity, it is difficult to identify the non-loaded neutral breast position from which to take measurements. To estimate the neutral nipple position, this study proposed a simple novel method to counteract the three dimensional effect of gravity on the breast using the buoyant forces from water and soybean oil (ρWATER = 994kgm(-3); ρOIL = 909kgm(-3)). Fourteen female participants with breast sizes ranging from 30 to 34in. under band and B to E cup size took part in this study...
October 18, 2016: Journal of Biomechanics
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