Fatigue fracture of an uncemented Zweymüller femoral stem at the neck–shoulder junction

A fracture through the neck of the femoral stem in total hip arthroplasty is extremely rare. We report a neck fracture of a cementless Zweymüller stem, one of the most implanted stems worldwide. According to our knowledge, this is the first thorough case description of a neck fracture of a cementless Zweymüller stem. The case concerns a 53-year-old man, with a body weight of 103 kg and a body mass index of 31. We consider potential risk factors for a femoral stem fracture, such as patient-related factors, suboptimal implant positioning, surgical technique and implant characteristics.

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Taper Fracture of Uncemented Femoral Stem after Total Hip Arthroplasty

Case Reports in Orthopedic Research ◽

10.1159/000495359 ◽

2018 ◽

Vol 1 (1-3) ◽

pp. 50-54 ◽

Cited By ~ 1

Author(s):

Salim Al Habsi ◽

Jatinder Singh Luthra ◽

Hamid Al Badei

Keyword(s):

Body Mass Index ◽

Total Hip Arthroplasty ◽

Body Mass ◽

Hip Arthroplasty ◽

Femoral Stem ◽

High Body Mass Index ◽

Total Hip ◽

Neck Fracture ◽

Potential Risk Factors ◽

Cyclical Loading

Fracture through the tapered femoral neck of total hip arthroplasty is extremely rare. We report the taper neck fracture of a cementless stem in an extensively porous-coated femoral prosthesis used for total hip arthroplasty due to chronic hip infection 8 years previously in a 42-year-old man, weighing 110 kg with a body mass index of 39. We consider that cyclical loading stresses, fretting corrosion, and high body mass index are possible potential risk factors of such fracture.

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Analysis of a Cementless Femoral Stem Neck Fracture Using Scanning Electron Microscopy and the Finite Element Method

Case Reports in Orthopedics ◽

10.1155/2019/7204598 ◽

2019 ◽

Vol 2019 ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

Hirokazu Takai ◽

Daisuke Nakayama ◽

Masatoshi Murayama ◽

Tomoki Takahashi

Keyword(s):

Electron Microscopy ◽

Risk Factors ◽

Finite Element Method ◽

Scanning Electron Microscopy ◽

Finite Element ◽

Femoral Stem ◽

Neck Fracture ◽

Stem Fracture ◽

Scanning Electron ◽

Element Method

Implant fracture is one of the rarest complications of total hip arthroplasty (THA). A 57-year-old woman experienced a fracture of the femoral stem (AHFIX Q, KYOCERA, Japan) about five years after THA. We examined the broken stem by digital microscopy, scanning electron microscopy, and finite element method. The anterolateral corner of the stem’s neck was found to be the origin point of the fracture. Finite element method analysis revealed that the stress concentration was highest in the corner of the hollow for apparatus attachment. The stem’s design has been considered one of the risk factors for stem fracture. In this patient, multiple risk factors, including thin stem (the smallest size, NAR #1), use of the long neck (+3 mm), obesity (body mass index: 27.3), and adjacent osteoarthritis (contralateral THA loosening and knee osteoarthritis), were present. To our knowledge, this is the first reported case of an AHFIX Q stem fracture. Surgeons must keep in mind that fracture of the femoral stem in patients with several risk factors is possible even several years after THA.

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CORRELAÇÃO ENTRE OBESIDADE/SOBREPESO E PRESSÃO ARTERIAL ELEVADA EM ESCOLARES DE UMA CIDADE DO INTERIOR DE SÃO PAULO

Colloquium Vitae ◽

10.5747/cv.2019.v11.n1.v253 ◽

2019 ◽

Vol 11 (1) ◽

pp. 51-56

Author(s):

Marcelo José Alves ◽

Victor Hugo Santos Zangirolamo ◽

Carlos Augusto Carvalho Filho ◽

Everton Alex Carvalho Zanuto ◽

Diane de Vasconcelos Barrionuevo ◽

...

Keyword(s):

Risk Factors ◽

Blood Pressure ◽

Body Mass Index ◽

Body Weight ◽

Standard Deviation ◽

Physical Inactivity ◽

Pediatric Population ◽

The Body ◽

Chronological Age ◽

Hemodynamic Variables

Currently the Brazilian pediatric population has been exposed to risk factors caused by physical inactivity and poor diet, resulting in an increase in the Body Mass Index (BMI), which can lead to vascular problems even in childhood. The objectivewasto verify the influence of BMIon pressure levels. The sample consisted of 61 children of both sexes, chronological age between six and seven years and regularly enrolled/attending school. These children were evaluated in their hemodynamic variables (systolic -SBP and diastolic –DBP blood pressure), body weight, and height. Mean and standard deviation of participants' ages were 7±0.3 years, SBP had 89.4±10 and DBP of 57±6.9, eutrophic patients had 88.7±1.1 for SBP and 56±5 for DBP,and for those with overweight/obesityof109±5 for SBP and 70.7±8.2 for PAD(p=0.0001).Pearson's correlation for BMI with SBP and DBP was moderate for both, but with beta of 1.53 in linear regression for SBP and 0.96 for DBP. It was concluded thatBMI directly influences systolic and diastolic blood pressure levels and the control of overweight / obesity is necessary at the initial ages of life

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Wpływ nadwagi i otyłości na stan zdrowia jamy ustnej dzieci i młodzieży

Nowa Stomatologia ◽

10.25121/ns.2019.24.3.108 ◽

2019 ◽

Vol 24 (3) ◽

Author(s):

Katarzyna Deszczyńska ◽

Paweł Piątkiewicz ◽

Renata Górska

Keyword(s):

Risk Factors ◽

Body Mass Index ◽

Body Weight ◽

Oral Cavity ◽

Oral Hygiene ◽

Overweight And Obesity ◽

Control Group ◽

Study Group ◽

Obese Children ◽

Periodontal Health

Introduction. Improper eating habits among children and adolescents often lead to overweight and obesity. Research indicates that these are risk factors for many diseases, including diseases in the oral cavity. Aim. To analyse the correlations of selected parameters of dental and periodontal health as well as oral hygiene status in overweight and obese children and adolescents versus control group. Material and methods. The study included 120 patients aged 11-18 years, who were classified into a study group with 60 overweight/obese individuals and a control group of 60 individuals with normal body weight based on BMI (Body Mass Index). Each patient underwent anthropometric measurements, such as height (cm), body weight (kg), which were used to calculate BMI (Body Mass Index). Additional measurements were taken of waist circumference (WC) and hip circumference (HC), to obtain the waist-hip ratio (WHR). Clinical examination of the oral cavity included an assessment of dentition (DMF), oral hygiene API (Approximal Plaque Index) and periodontal tissue (PD – Pocket Depth, CAL – Clinical Attachment Level, %BOP – % Bleeding On Probing) and CPITN (The Community Periodontal Index for Treatment Needs). Results. Statistically significant differences were found between patient groups with BMI ≥ 25 and BMI < 25 in the values of the following parameters: DMF p = 0.005, API p < 0.001, %BOP p < 0.001, PD p < 0.001, CPI p < 0.001. Conclusions. Overweight and obese children were found to have have worse parameters of dental and periodontal health as well as oral hygiene status compared to the group with normal weight. Our observations indicate that overweight and obesity may be potential risk factors for periodontal diseases in the study group.

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Waist circumference, body mass index, and skinfold thickness as potential risk factors for high blood pressure in adolescents

Paediatrica Indonesiana ◽

10.14238/pi59.2.2019.79-86 ◽

2019 ◽

Vol 59 (2) ◽

pp. 79-86

Author(s):

Roslina Dewi ◽

Rafita Ramayati ◽

Nelly Rosdiana ◽

Oke Rina Ramayani ◽

Rosmayanti Siregar ◽

...

Keyword(s):

Risk Factors ◽

Blood Pressure ◽

Body Mass Index ◽

Waist Circumference ◽

Systolic Blood Pressure ◽

Diastolic Blood Pressure ◽

Potential Risk ◽

Predictive Factor ◽

Skinfold Thickness ◽

Potential Risk Factors

Background The prevalence of hypertension in children and adolescents has increased with the rising obesity epidemic. Recent studies have found that prevalence of hypertension was higher in obese children or adolescents than in the normal weight ones. Anthropometric measurements such as body mass index (BMI), waist circumference, and skinfold thickness have been used as criteria to determine obesity in children and adolescents. Increased waist circumference has been most closely related to increased blood pressure. Objective To compare waist circumference, BMI, and skinfold thickness as potential risk factors for hypertension in adolescents. Methods This cross-sectional study was conducted in May 2014 in three senior high schools in Medan, North Sumatera, and included 253 students with normal urinalysis test. All subjects underwent blood pressure, waist circumference, tricep- and subscapular-skinfold thickness (TST and SST), body weight, and body height measurements. The study population was categorized into underweight, normoweight, overweight, and obese, according to four different criteria: waist circumference, BMI, TST, and SST; all variables were analyzed for possible correlations with systolic and diastolic blood pressure. Results There were significant positive correlations between systolic blood pressure and waist circumference (OR 7.933; 95%CI 2.20 to 28.65; P=0.011) as well as BMI (OR 4.137; 95%CI 1.16 to 14.75; P=0.041). There were also significant correlations between diastolic blood pressure and waist circumference (OR 3.17; 95%CI 1.83 to 5.51; P=0.002), BMI (P=0.0001; OR=3.69), TST (OR 4.73; 95%CI 2.31 to 9.69; P=0.0001), and SST (OR 3.74; 95%CI 2.35 to 5.94; P=0.0001). Multivariate analysis showed that waist circumference was a predictive factor for systolic blood pressure (OR 9.667), but not for diastolic blood pressure. Conclusion Waist circumference is the strongest, significant, predictive factor for elevated systolic blood pressure; meanwhile BMI, SST, and TST could be predictive factors for elevated diastolic blood pressure.

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Prenatal and Postnatal Predictive Factors for Children’s Inattentive and Hyperactive Symptoms at 5 Years of Age: The Role of Early Family-related Factors

Child Psychiatry & Human Development ◽

10.1007/s10578-020-01057-7 ◽

2020 ◽

Author(s):

Hanna Huhdanpää ◽

Isabel Morales-Muñoz ◽

Eeva T. Aronen ◽

Pirjo Pölkki ◽

Outi Saarenpää-Heikkilä ◽

...

Keyword(s):

Risk Factors ◽

Parenting Style ◽

Parental Support ◽

Early Screening ◽

Related Factors ◽

Authoritarian Parenting ◽

Hyperactivity Disorder ◽

Potential Risk Factors ◽

Authoritative Parenting Style

Abstract We examined several parent-reported prenatal and postnatal factors as potential risk factors for attention-deficit and hyperactivity disorder (ADHD) symptomatology in 5-year-old children. Our study is based on the CHILD-SLEEP birth cohort. Several parental questionnaires were collected prenatally (32nd pregnancy week) and postnatally (i.e. child aged 3, 8, and 24 months and at 5 years). At 5 years of age, ADHD symptoms were assessed using questionnaires. Our main results showed that being a boy, parental depressive symptoms, more negative family atmosphere or a child’s shorter sleep duration, and maternal authoritarian parenting style predicted inattentive/hyperactive symptoms. Maternal and paternal authoritative parenting style predicted less inattentive/hyperactive symptoms. Children with several risk factors together had the highest risk for inattentive/hyperactive symptoms. Our findings emphasise the need for early screening and treatment of parental mental health, and early evidence-based targeted parental support, to enable early intervention in those children at a risk of developing ADHD.

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The prevalence of hock lesions in UK dairy cattle and the significance of risk factors associated with the development of the condition

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200029343 ◽

2009 ◽

Vol 2009 ◽

pp. 95-95

Author(s):

S Potterton ◽

M Green ◽

J Harris ◽

K Millar ◽

H Whay ◽

...

Keyword(s):

Risk Factors ◽

Dairy Cattle ◽

Clinical Mastitis ◽

Related Factors ◽

Death Rates ◽

Factors Associated ◽

Cell Counts ◽

East Midlands ◽

Potential Risk Factors ◽

The Uk

The term hock lesion describes incidences of hair loss, thickened skin, wounds, scabs, and swellings occurring over the tarsal joint. Hock lesions in dairy cattle are a widespread problem around the world. In the UK, a recent study found approximately 99% of examined cows had at least some callused area over a hock (Haskell et al., 2006). The presence of hock lesions is correlated with injuries of the teat, carpal joints and skin, as well as increases in mobility score, high somatic cell counts, a greater incidence of clinical mastitis, and higher culling and annual death rates. Differences in the prevalence and severity of hock lesions according to the lying surface and cubicle design have been identified. Cow-related factors and management variables have also been postulated as possible risk factors. Recognition of the condition and practical solutions aimed at resolving it have however, been limited. The aim of this study was to determine the prevalence of hock lesions in lactating cattle on dairy farms in the East Midlands of the UK, and the significance of potential risk factors in the development of the lesions.

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Identifying risk factors that contribute to acute mountain sickness

South African Journal of Sports Medicine ◽

10.7196/sajsm.8112 ◽

2015 ◽

Vol 27 (3) ◽

pp. 82-86

Author(s):

Z Mahomed ◽

D Martin ◽

E Gilbert ◽

CC Grant ◽

J Patricios ◽

...

Keyword(s):

Risk Factors ◽

Body Mass Index ◽

High Altitude ◽

Acute Mountain Sickness ◽

Health Sector ◽

Demographic Variables ◽

Base Camp ◽

Potential Risk Factors ◽

Mountain Sickness ◽

Physiological Risk

Background. Acute mountain sickness (AMS) is an ever-increasing burden on the health sector. With reported incidences of greater than 50%, coupled with the fact that recreational activities at high altitude are gaining increasing popularity, more persons are developing AMS. Physicians are therefore increasingly faced with the task of managing and preventing AMS.Objectives. The pathophysiology of AMS is poorly understood, with little understanding of risk factors for the development of AMS. This research aimed to identify epidemiological and physiological risk factors for development of AMS.Methods. This study is a questionnaire-based study conducted in London and at Everest Base Camp, in which 116 lowlanders were invited to participate and fill in a questionnaire to identify potential risk factors in their history that may have contributed to development of or protection against AMS.Results. A total of 89 lowlanders enrolled in the study. Thirty-seven of the participants had AMS at Everest Base Camp, giving a prevalence of 42%. Of the demographic variables, only weight and body mass index (BMI) were statistically significantly associated with AMS, with those who weighed less or had a lower BMI more likely to get AMS. Previous high-altitude experience was also associated with AMS, with those who had such experience less likely to get AMS.Conclusion. Predicting AMS and furthering our understanding of the pathophysiology of AMS will be of tremendous benefit. Further research is needed in this regard.

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Incidence and risk factors of acute kidney injury after femoral neck fracture in elderly patients: a retrospective case-control study

BMC Musculoskeletal Disorders ◽

10.1186/s12891-021-04966-3 ◽

2022 ◽

Vol 23 (1) ◽

Author(s):

Sizheng Zhan ◽

Wenyong Xie ◽

Ming Yang ◽

Dianying Zhang ◽

Baoguo Jiang

Keyword(s):

Risk Factors ◽

Femoral Neck ◽

Elderly Patients ◽

Femoral Neck Fracture ◽

Kidney Injury ◽

Intraoperative Hypotension ◽

Neck Fracture ◽

Potential Risk Factors ◽

Independent Risk Factors ◽

Postoperative Aki

Abstract Background Hip fracture is highly associated with disability and consequently, mortality in the elderly population. Postoperative acute kidney injury (AKI) is not unusual and is associated with considerable morbidity and mortality. We aimed to determine the incidences and potential risk factors for postoperative AKI in elderly patients with femoral neck fracture. Methods We retrospectively evaluated patients over 65 years of age who had been subjected to surgery for femoral neck fracture at Peking University People's Hospital from January 2015 to December 2019. Demographic characteristics and potential risk factors were collected. AKI was defined according to the Kidney Disease Improving Global Outcomes Guidelines (KDIGO). Results A total of 308 elderly patients with femoral neck fracture were included in the study. The overall incidence of postoperative AKI was 12% (37 cases). Through binary logistic regression analysis, adjusted for age, intraoperative blood loss and BMI, we identified that early postoperative albumin levels, hemoglobin changes and intraoperative hypotension are independent risk factors for postoperative AKI. The model considering the three factors can improve accuracy of predicting the possibility of developing AKI. The patients with AKI had a significantly higher mortality of 40.5% than those without AKI (24.0%, p < 0.001) Conclusion The incidence of postoperative AKI in elderly patients with femoral neck fracture was 12%. Independent risk factors for postoperative AKI included hemoglobin changes, early postoperative hypoalbuminemia and intraoperative hypotension. At the same time, postoperative AKI significantly increased mortality in elderly patients with femoral neck fracture. Taking multiple possible factors into consideration can better predict the possibility of elderly patients developing AKI after surgery.

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Epidemiologic Study of Infant Botulism in Pennsylvania: Report of the Infant Botulism Study Group

PEDIATRICS ◽

10.1542/peds.75.5.928 ◽

1985 ◽

Vol 75 (5) ◽

pp. 928-934

Author(s):

Sarah S. Long

Keyword(s):

Risk Factors ◽

Epidemiologic Study ◽

Geographic Area ◽

The United States ◽

Family Characteristics ◽

Related Factors ◽

Related Risk ◽

Potential Risk Factors ◽

Infant Botulism ◽

Low Prevalence

The majority of the almost 400 confirmed cases of infant botulism in the United States have occurred in California, Pennsylvania, and Utah. In Pennsyvania, 44 of 53 (83%) cases occurred within a geographic area of Southeastern Pennsylvania which represents one tenth of the Commonwealth's area and one third of the population at risk for infant botulism. In Southeastern Pennsylvania, a map of the residences of cases circumscribes a discrete ring around Philadelphia. A case-control study performed to seek host-related risk factors, identifies the significant associations of botulism with infants who are white, breast-fed, and born at term into two-parent families with hospitalization insurance. County control studies were performed to identify differences in host-related factors between areas of high and low prevalence of botulism. Although some "protection" could be afforded Philadelphia infants by their feeding and family characteristics, the differences in case rates between Philadelphia and the botulism "ring counties" cannot be explained entirely by host-related factors. Further, the absence of botulism in counties just outside of the botulism "ring," where infants were found to have identical potential risk factors, suggests that an uneven distribution of botulinal spores in the environment is the most significant determinant of case rate.

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