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https://www.readbyqxmd.com/read/29666948/epidemiology-of-hip-fracture-in-belarus-development-of-a-country-specific-frax-model-and-its-comparison-to-neighboring-country-models
#1
H Ramanau, I Chernyanin, E Rudenka, O Lesnyak, A Zakroyeva, J P Bilezikian, H Johansson, N C Harvey, E V McCloskey, J A Kanis
Fracture probabilities resulting from the newly generated FRAX model for Belarus based on regional estimates of the hip fracture incidence were compared with FRAX models of neighboring countries. Differences between the country-specific FRAX patterns and the rank orders of fracture probabilities were modest. OBJECTIVE: This paper describes the epidemiology of hip fractures in Belarus that was used to develop the country-specific fracture prediction FRAX® tool and illustrates its features compared to models for the neighboring countries of Poland, Russia, and Lithuania...
April 17, 2018: Archives of Osteoporosis
https://www.readbyqxmd.com/read/29664885/the-effect-of-hip-positioning-on-the-projected-femoral-neck-shaft-angle-a-modeling-study
#2
Abhiram R Bhashyam, Edward K Rodriguez, Paul Appleton, John J Wixted
OBJECTIVES: The femoral neck-shaft angle (NSA) is used to restore normal hip geometry during hip fracture repair. Femoral rotation is known to affect NSA measurement, but the effect of hip flexion-extension is unknown. The goals of this study were to determine and test mathematical models of the relationship between hip flexion-extension, femoral rotation and NSA. We hypothesized that hip flexion-extension and femoral rotation would result in NSA measurement error. METHODS: Two mathematical models were developed to predict NSA in varying degrees of hip flexion-extension and femoral rotation...
April 3, 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29663575/arthroplasty-implant-registries-over-the-past-five-decades-development-current-and-future-impact
#3
REVIEW
Henrik Malchau, Göran Garellick, Daniel Berry, William H Harris, Otto Robertson, Johan Kärrlholm, David Lewallen, Charles R Bragdon, Lars Lidgren, Peter Herberts
Local, regional and national registries have played an important role the development of hip and knee arthroplasty and the treatment of patients with various maladies of these joints. Four arthroplasty registries stand out as leading forces behind the drive to popularize the use of registries and pursue the concept of evidence based medicine. The Mayo registry, started by Mark Coventry, is recognized as the oldest continuing registry for arthroplasty. The Harris Registry at Massachusetts General Hospital, along with the Mayo Registry, has greatly contributed to the advancement of arthroplasty surgery and have served an important role of identifying poorly performing implants and techniques in the United States...
April 16, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29663067/impact-of-age-on-postoperative-complication-rates-among-elderly-patients-with-hip-fracture-a-retrospective-matched-study
#4
Mitsuhiro Matsuo, Tohru Yamagami, Akiko Higuchi
This study was performed to assess the impact of age of ≥ 90 years on predicting postoperative complications. We retrospectively identified all patients aged ≥ 65 years who underwent surgical repair of hip fractures over a 4.5-year period in our hospital. In total, 261 patients were identified (mean age, 86.2 ± 6.8 years). Ninety-one patients were aged ≥ 90 years (oldest-old group), and the remaining 170 were aged < 89 years (control old group). Postoperative complications developed in 54 of 261 patients (20...
April 16, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29662774/a-novel-gait-based-synthesis-procedure-for-the-design-of-4-bar-exoskeleton-with-natural-trajectories
#5
Ramanpreet Singh, Himanshu Chaudhary, Amit K Singh
Background/Objective: Human walking involves the coordination of brain, nerves, and muscles. A disturbance in their coordination may result in gait disorder. The gait disorder may be treated through manually assisted gait training or with the aid of assistive devices/robotic devices. These robotic devices involve mechanisms which are synthesized using complex conventional procedures. Therefore, in this study, a new gait-based synthesis procedure is proposed, which simplifies the mechanism synthesis and helps to develop a mechanism which can be used in rehabilitation devices, bipeds, etc...
January 2018: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29662770/predicting-the-collapse-of-the-femoral-head-due-to-osteonecrosis-from-basic-methods-to-application-prospects
#6
REVIEW
Leilei Chen, GuoJu Hong, Bin Fang, Guangquan Zhou, Xiaorui Han, Tianan Guan, Wei He
Collapse of the femoral head is the most significant pathogenic complication arising from osteonecrosis of the femoral head. It is related to the disruption of the maintenance of cartilage and bone, and results in an impaired function of the vascular component. A method for predicting the collapse of the femoral head can be treated as a type of clinical index. Efforts in recent years to predict the collapse of the femoral head due to osteonecrosis include multiple methods of radiographic analysis, stress distribution analysis, finite element analysis, and other innovative methods...
October 2017: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29662766/clinical-validation-of-a-body-fixed-3d-accelerometer-and-algorithm-for-activity-monitoring-in-orthopaedic-patients
#7
Matthijs Lipperts, Simon van Laarhoven, Rachel Senden, Ide Heyligers, Bernd Grimm
Background/Objective: Activity is increasingly being recognized as a highly relevant parameter in all areas of healthcare for diagnosis, treatment, or outcome assessment, especially in orthopaedics where the movement apparatus is directly affected. Therefore, the aim of this study was to develop, describe, and clinically validate a generic activity-monitoring algorithm, satisfying a combination of three criteria. The algorithm must be able to identify, count, and time a large set of relevant daily activities...
October 2017: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29662765/a-wearable-exoskeleton-suit-for-motion-assistance-to-paralysed-patients
#8
Bing Chen, Chun-Hao Zhong, Xuan Zhao, Hao Ma, Xiao Guan, Xi Li, Feng-Yan Liang, Jack Chun Yiu Cheng, Ling Qin, Sheung-Wai Law, Wei-Hsin Liao
Background/Objective: The number of patients paralysed due to stroke, spinal cord injury, or other related diseases is increasing. In order to improve the physical and mental health of these patients, robotic devices that can help them to regain the mobility to stand and walk are highly desirable. The aim of this study is to develop a wearable exoskeleton suit to help paralysed patients regain the ability to stand up/sit down (STS) and walk. Methods: A lower extremity exoskeleton named CUHK-EXO was developed with considerations of ergonomics, user-friendly interface, safety, and comfort...
October 2017: Journal of Orthopaedic Translation
https://www.readbyqxmd.com/read/29662652/guided-bone-regeneration-using-a-bone-tissue-engineering-complex-consisting-of-a-poly-dl-lactide-membrane-and-bone-mesenchymal-stem-cells
#9
Dahui Wang, Yifeng Lin, Lian Chen, Yueqiang Mo, Peng Huang, Ruixue Ma
Developmental dysplasia of the hip (DDH) is one of the most common diseases encountered in pediatric orthopedic departments. Current treatment strategies seek to improve acetabular coverage, the principal defect of acetabular dysplasia, but are not very successful. We developed a guided bone regeneration (GBR) strategy to improve acetabular coverage via bone tissue engineering (BTE). Poly- dl -lactide (PDLLA) membranes were seeded with bone marrow mesenchymal stem cells (BMSCs) to form a BTE complex, which was then implanted into the superior margin of the acetabulum in a rabbit DDH model...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29661041/prospective-risk-of-osteoporotic-fractures-in-patients-with-advanced-chronic-obstructive-pulmonary-disease
#10
Ayushman Gupta, Neil J Greening, Rachael A Evans, Abigail Samuels, Nicole Toms, Michael C Steiner
Despite the high prevalence of osteoporosis in chronic obstructive pulmonary disease (COPD) patients, the fracture risk prediction tools are not routinely undertaken in the management of COPD. We quantified fracture risk using a validated risk prediction tool (Fracture Risk Assessment (FRAX®)) and determined potential bone-protection treatment needs in patients with advanced COPD. The 10-year probability of major osteoporotic or hip fracture was calculated using the FRAX tool in a cohort of patients attending a hospital complex COPD service...
January 1, 2018: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/29660426/coffee-and-tea-drinking-in-relation-to-risk-of-hip-fracture-in-the-singapore-chinese-health-study
#11
Zhaoli Dai, Aizhen Jin, Avril Zixin Soh, Li-Wei Ang, Jian-Min Yuan, Woon-Puay Koh
Meta-analyses of studies conducted among Western populations suggest that coffee consumption does not affect osteoporotic fracture risk. However, experimental studies have shown that the effect of caffeine on bone health may depend on dosage. We examined the associations between consumption of coffee, tea and caffeine and risk of hip fracture in an Asian cohort. In a population-based prospective cohort of 63,257 Chinese men and women aged 45-74 years in Singapore, a validated semi-quantitative food frequency questionnaire was used to assess habitual consumption of coffee and tea at baseline...
April 13, 2018: Bone
https://www.readbyqxmd.com/read/29660385/pre-operative-asymptomatic-bacteriuria-a-risk-factor-for-prosthetic-joint-infection
#12
R Weale, F El-Bakri, Kordo Saeed
BACKGROUND: Infection is a rare complication following implantation of prosthetic material into a joint. The impact of asymptomatic bacteriuria (ASB) before elective operations and the subsequent risk of prosthetic joint infection (PJI) are not well understood. AIMS: • Assess the prevalence of ASB amongst patients undergoing total arthroplasty of the hip and knee. • Determine the rates of PJI diagnosed within two years of the arthroplasty and if ASB is an independent risk factor for developing PJI...
April 13, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29658534/the-influence-of-osteoporotic-bone-structures-of-the-pelvic-hip-complex-on-stress-distribution-under-impact-load
#13
Katarzyna Arkusz, Tomasz Klekiel, Niezgoda Niezgoda, Romuald Będziński
PURPOSE: The aim of this study was to determine the effect of bone mineral density (BMD) on the stress distribution in pelvic-hip complex (PHC) model which included bone structures and soft tissues. Bone mass changes in osteoporosis and osteopenia were considered in this analysis. In addition, the relations between force direction and stress distribution causing PHC fractures were determined. METHODS: This paper presents the development and validation of a detailed 3D finite element model with high anatomical fidelity of the PHC and BMD changes in trabecular and cortical bones, modelled based on CT scans...
2018: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29657840/third-generation-pure-alumina-and-alumina-matrix-composites-in-total-hip-arthroplasty-what-is-the-evidence
#14
Didier Hannouche, Matthieu Zingg, Hermes Miozzari, Remy Nizard, Anne Lübbeke
Wear, corrosion and periprosthetic osteolysis are important causes of failure in joint arthroplasty, especially in young patients.Ceramic bearings, developed 40 years ago, are an increasingly popular choice in hip arthroplasty. New manufacturing procedures have increased the strength and reliability of ceramic materials and reduced the risk of complications.In recent decades, ceramics made of pure alumina have continuously improved, resulting in a surgical-grade material that fulfills clinical requirements...
January 2018: EFORT Open Reviews
https://www.readbyqxmd.com/read/29657460/a-quality-improvement-project-decreases-incidence-of-pulmonary-embolism-following-arthroplasty
#15
Iyad Eid, Dane Moran, Lynn Morrison, Eyad HajHussein, Hanna Hill, Rasha Ansari, Tammy Williams, Mojieb Manzary
Objective: To develop a quality improvement initiative to reduce the incidence of pulmonary embolism (PE) following elective lower extremity joint replacement surgery. Methods: 866 Patients undergoing a total knee or total or partial hip replacement surgery at a from 2014 to 2016 were included in this prospective pre-post interventional study. Results: There were 13 PE's before the intervention and 2 after the intervention. The incidence of PE was significantly higher prior to the intervention (2...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29656964/artificial-intelligence-machine-learning-deep-learning-and-cognitive-computing-what-do-these-terms-mean-and-how-will-they-impact-health-care
#16
Stefano A Bini
This article was presented at the 2017 annual meeting of the American Association of Hip and Knee Surgeons to introduce the members gathered as the audience to the concepts behind artificial intelligence (AI) and the applications that AI can have in the world of health care today. We discuss the origin of AI, progress to machine learning, and then discuss how the limits of machine learning lead data scientists to develop artificial neural networks and deep learning algorithms through biomimicry. We will place all these technologies in the context of practical clinical examples and show how AI can act as a tool to support and amplify human cognitive functions for physicians delivering care to increasingly complex patients...
February 27, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29656963/rapid-discharge-in-total-hip-arthroplasty-utility-of-the-outpatient-arthroplasty-risk-assessment-tool-in-predicting-same-day-and-next-day-discharge
#17
Kelvin Y Kim, James E Feng, Afshin A Anoushiravani, Edward Dranoff, Roy I Davidovitch, Ran Schwarzkopf
BACKGROUND: Hospital length of stay is a major driver of cost in the total hip arthroplasty (THA) episode of care, and as a result, significant efforts are being made to minimize it. This study aims to assess the utility of the Outpatient Arthroplasty Risk Assessment (OARA) screening tool in accurately identifying patients for safe and early discharge after THA. METHODS: A retrospective review was conducted on 332 consecutive patients who underwent primary THA at a single tertiary academic center...
March 17, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29652785/clinical-prediction-rule-for-heterotopic-ossification-of-the-hip-in-patients-with-spinal-cord-injury
#18
Eduardo M Suero, Mustafa Citak
STUDY DESIGN: Case-control study; clinical prediction rule. OBJECTIVE: To construct and internally validate a clinical prediction rule to identify patients at high risk of developing heterotopic ossification (HO) after spinal cord injury (SCI). SUMMARY OF BACKGROUND DATA: HO after SCI can lead to loss of joint mobility, loss of function, peripheral nerve entrapment, and pressure sores. HO is usually diagnosed based on clinical symptoms, as no laboratory tests are yet available to identify patients with early HO formation...
April 12, 2018: Spine
https://www.readbyqxmd.com/read/29652237/failure-of-facet-replacement-system-with-metal-on-metal-bearing-surface-and-subsequent-discovery-of-cobalt-allergy-report-of-2-cases
#19
Matthew L Goodwin, William Ryan Spiker, Darrel S Brodke, Brandon D Lawrence
The aim of this study was to report on 2 patients in whom metal-on-metal (MOM) facet replacements failed, with subsequent positive findings on allergy testing. Motion-preserving devices have been used with limited success when instrumentation is indicated in the mobile spine. MOM-bearing surfaces in orthopedics were developed to increase implant longevity, yet have been associated with numerous adverse outcomes, including local tissue reactions, pseudotumors, metallosis, and the need for revision surgery. Five patients with spinal stenosis and low-grade spondylolisthesis were randomized to undergo facet replacement surgery with the ACADIA facet replacement system at the authors' institution...
April 13, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29652043/-the-hardware-techniques-for-the-restoration-of-the-gait-stereotype-in-the-patients-following-total-hip-replacement-the-personalized-approach
#20
E S Koneva, K V Lyadov, T V Shapovalenko, E V Zhukova, V G Polushkin
BACKGROUND: total hip replacement has long ago become the «golden standard» for the treatment of dysplastic coxarthrosis in thousands of the patients receiving it every year. In the meantime, the analysis of the specialized literature gives evidence of the lack of a systematic and personified approach to the rehabilitation treatment. AIM: The objective of the present study was to improve medical rehabilitation of the patients following the total hip replacement and to develop the personalized programs for walking modality reconstruction taking into consideration the age and the body weight of the patients...
April 9, 2018: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
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