scholarly journals Pelvic Obliquity, It Is Not a Neutral Angle in the Normal Population

2021 ◽  
Author(s):  
Alireza Moharrami ◽  
Seyed Saeed Tamehri ◽  
Mohammad Ali Ghasemi ◽  
Mir Mansour Moazen Jamshidi ◽  
Seyed Mohammad Javad Mortazavi
Keyword(s):  
Normal Population ◽  
Hip Osteoarthritis ◽  
Developmental Dysplasia ◽  
Pelvic Obliquity ◽  
Related Factors ◽  
Developmental Dysplasia Of Hip ◽  
Spss Software ◽  
Hip Trauma ◽  
Definition Of ◽  
Neutral Alignment

Abstract Introduction: The definition of pelvic obliquity angle (PO) still unclear in the normal population. Several factors might cause the obliquity i.e. hip osteoarthritis, developmental dysplasia of hip, trauma, scoliosis and spine related factors. Perhaps, pelvic obliquity is expressed as a deviation of neutral alignment in the normal population. We developed present study to evaluate the distribution of pelvic obliquity angle in normal population.Method: present study retrospectively enrolled on 134 cases (70 female and 64 male) without any problem of spine, pelvic and lower extremity abnormality who referred to our institution from January 2017 to January 2018 for non-orthopedic problems. We retrospectively reviewed radiographs from institutional PACS and measured pelvic obliquity angle using mediCAD Classic software (version 3.50.0.1, Hectec, Landstuhl, Germany). Finally, all data were analyzed with SPSS software (version 24.0, USA).Result: present study show that all data has significant relationship in one sample T test. All PO angles were normally distributed in kurtosis and skewness test. The patients were aged with a mean of 39.6 ±16.8 in current study. The mean of PO angle was 2.18 ±1.6 in all patients and 0.13 standard error of mean. There was no significant differences between male and female genders (2.07 ±1.6 vs 2.27±1.6, P=0.47). This study reveal that age and PO angle had not any correlation (P=0.165).Conclusion: despite this fact, there was an attitude that PO angle normally is in neutral alignment, our result uncover that the normal range of PO angle was not neutral and ranged from 0.58 to 4.4 degrees with one standard deviation from mean in the normal population.

scholarly journals Identification and inclusion of gender factors in retrospective cohort studies: the GOING-FWD framework

2021 ◽  
Vol 6 (4) ◽  
pp. e005413
Author(s):  
Valeria Raparelli ◽  
Colleen M. Norris ◽  
Uri Bender ◽  
Maria Trinidad Herrero ◽  
Alexandra Kautzky-Willer ◽  
...  
Keyword(s):  
Outcome Measurement ◽  
Meta Analysis ◽  
Synthetic Data ◽  
Well Being ◽  
Pooled Analysis ◽  
Research Network ◽  
Local Analysis ◽  
Related Factors ◽  
Measurement Framework ◽  
Definition Of

Gender refers to the socially constructed roles, behaviours, expressions and identities of girls, women, boys, men and gender diverse people. Gender-related factors are seldom assessed as determinants of health outcomes, despite their powerful contribution. The Gender Outcomes INternational Group: to Further Well-being Development (GOING-FWD) project developed a standard five-step methodology applicable to retrospectively identify gender-related factors and assess their relationship to outcomes across selected cohorts of non-communicable chronic diseases from Austria, Canada, Spain, Sweden. Step 1 (identification of gender-related variables): Based on the gender framework of the Women Health Research Network (ie, identity, role, relations and institutionalised gender), and available literature for a certain disease, an optimal ‘wish-list’ of gender-related variables was created and discussed by experts. Step 2 (definition of outcomes): Data dictionaries were screened for clinical and patient-relevant outcomes, using the International Consortium for Health Outcome Measurement framework. Step 3 (building of feasible final list): a cross-validation between variables per database and the ‘wish-list’ was performed. Step 4 (retrospective data harmonisation): The harmonisation potential of variables was evaluated. Step 5 (definition of data structure and analysis): The following analytic strategies were identified: (1) local analysis of data not transferable followed by a meta-analysis combining study-level estimates; (2) centrally performed federated analysis of data, with the individual-level participant data remaining on local servers; (3) synthesising the data locally and performing a pooled analysis on the synthetic data and (4) central analysis of pooled transferable data. The application of the GOING-FWD multistep approach can help guide investigators to analyse gender and its impact on outcomes in previously collected data.

scholarly journals Results of surgical treatment of developmental dysplasia of hip considering child’s age

2011 ◽  
Vol 139 (1-2) ◽  
pp. 58-63 ◽  
Author(s):  
Sonja Milasinovic
Keyword(s):  
Surgical Treatment ◽  
Human Life ◽  
Functional Results ◽  
Developmental Dysplasia ◽  
Preoperative Treatment ◽  
Locomotor System ◽  
Developmental Dysplasia Of Hip ◽  
Innominate Osteotomy ◽  
Medical Documents ◽  
Late Discovery

Introduction. Developmental dysplasia of the hip (DDH) represents one of common diseases of the locomotor system. Late discovery and inadequate healing of this defect leads to serious disability in the best years of human life. Objective. The aim of this study was to analyze the quality of functional and anatomic restitution of the diseased hip, depending on the age of the patient at the time of surgery. Methods. Our retrospective study was developed on 78 children surgically treated for DDH. The examiners were distributed in three groups according to age in which they had been operated. The data were produced on the basis of full-scale medical documents for each patient. Results. We analyzed and compared anatomic and functional results of surgeries treating DDH in the group of examiners. On examination, we got data that the most prevalent were distorted gait, inequality of the legs and positive Trendelendburg?s sign in the group of children who had been operated in the oldest age. The patients who were surgically treated in older age had worse postoperative results in aspect value angle of flexion and abduction in treated hip, higher frequency in manifesting pain and asymmetric gait. Better corrective results on aspect of dimension of the colodiaphyseal and Hilgenrainer?s angle will be obtained if DDH treatment is conducted in younger age of patients. In 94.95%, the patients were treated with Salter innominate osteotomy of pelvis with osteotomy of the femur involving its shortening and reverse rotation. Preoperative treatment with Pavliks harness was provided in 44.02% children, with abduction of Hilgenrainer?s apparatus in 2.6%, with abductions ?Niva? slips in 2.6% and preoperative extension in 28.2%. Conclusion. The surgical treatment of DDH in the observed patients done at the earlier age of growth resulted in the evidently better anatomical and functional results at postoperative observation.

scholarly journals Biomechanical gait features associated with hip osteoarthritis: Towards a better definition of clinical hallmarks

2015 ◽  
Vol 33 (10) ◽  
pp. 1498-1507 ◽  
Author(s):  
Christophe A.G. Meyer ◽  
Kristoff Corten ◽  
Steffen Fieuws ◽  
Kevin Deschamps ◽  
Davide Monari ◽  
...  
Keyword(s):  
Hip Osteoarthritis ◽  
Gait Features ◽  
Definition Of

scholarly journals The Gender Outcomes International Group: to Further Well-being Development (Going-fwd) Methodology on Identification and Inclusion of Gender Factors in Retrospective Cohort Studies

2020 ◽  
Author(s):  
Valeria Raparelli Raparelli ◽  
Colleen M. Norris ◽  
Uri Bender ◽  
Maria Trinidad Herrero ◽  
Alexandra Kautzky-Willer ◽  
...  
Keyword(s):  
Data Structure ◽  
Meta Analysis ◽  
Synthetic Data ◽  
Well Being ◽  
Pooled Analysis ◽  
Research Network ◽  
Local Analysis ◽  
Related Factors ◽  
Individual Level ◽  
Definition Of

Abstract Background: Gender refers to the socially constructed roles, behaviors, expressions, and identities of girls, women, boys, men, and gender diverse people. It influences self-perception, individual’s actions and interactions, as well as the distribution of power and resources in society. Gender-related factors are seldom assessed as determinants of health outcomes, despite their powerful contribution.Methods: Investigators of the GOING-FWD project developed a standard methodology applicable for observational studies to retrospectively identify gender-related factors to assess their relationship to outcomes and applied this method to selected cohorts of non-communicable chronic diseases from Austria, Canada, Spain, Sweden.Results: The following multistep process was applied. Step 1 (Identification of Gender-related Variables): Based on the gender framework of the Women Health Research Network (i.e. gender identity, role, relations, and institutionalized gender), and available literature for a certain disease, an optimal “wish-list” of gender-related variables/factors was created and discussed by experts. Step 2 (Definition of Outcomes): each of the cohort data dictionaries were screened for clinical and patient relevant outcomes, using the ICHOM framework. Step 3 (Building of Feasible Final List): A cross-validation between gender-related and outcome variables available per database and the “wish-list” was performed. Step 4 (Retrospective Data Harmonization): The harmonization potential of variables was evaluated. Step 5 (Definition of Data Structure and Analysis): Depending on the database data structure, the following analytic strategies were identified: (1) local analysis of data not transferable followed by a meta-analysis combining study-level estimates; (2) centrally performed federated analysis of anonymized data, with the individual-level participant data remaining on local servers; (3) synthesizing the data locally and performing a pooled analysis on the synthetic data; and (4) central analysis of pooled transferable data.Conclusion: The application of the GOING-FWD systematic multistep approach can help guide investigators to analyze gender and its impact on outcomes in previously collected data.

Femoral morphology asymmetry in hip dysplasia makes radiological leg length measurement inaccurate

2019 ◽  
Vol 101-B (3) ◽  
pp. 297-302 ◽  
Author(s):  
K. Tamura ◽  
M. Takao ◽  
H. Hamada ◽  
W. Ando ◽  
T. Sakai ◽  
...  
Keyword(s):  
Developmental Dysplasia ◽  
Absolute Difference ◽  
Control Group ◽  
Leg Length ◽  
Greater Trochanter ◽  
Related Factors ◽  
Unaffected Side ◽  
Femoral Length ◽  
Lesser Trochanter ◽  
Neck Shaft Angle

Aims The aim of this study was to examine whether hips with unilateral osteoarthritis (OA) secondary to developmental dysplasia of the hip (DDH) have significant asymmetry in femoral length, and to determine potential related factors. Patients and Methods We enrolled 90 patients (82 female, eight male) with DDH showing unilateral OA changes, and 43 healthy volunteers (26 female, 17 male) as controls. The mean age was 61.8 years (39 to 93) for the DDH groups, and 71.2 years (57 to 84) for the control group. Using a CT-based coordinate measurement system, we evaluated the following vertical distances: top of the greater trochanter to the knee centre (femoral length GT), most medial prominence of the lesser trochanter to the knee centre (femoral length LT), and top of the greater trochanter to the medial prominence of the lesser trochanter (intertrochanteric distance), along with assessments of femoral neck anteversion and neck shaft angle. Results The percentages of hips with an absolute difference of > 5 mm in femoral GT and LT lengths were significantly larger in the DDH group (24% for both) compared with those of the control group (2% and 7%, respectively). The femoral length GT of the affected femur was significantly shorter in Crowe I and longer in Crowe IV than that of the unaffected side. The affected-to-unaffected difference of the intertrochanteric distance showed positive correlation with that of the femoral length GT in Crowe I and Crowe II/III, and negative correlation with that of the femoral length LT in the Crowe I and Crowe IV groups. Conclusion Hips with unilateral end-stage OA secondary to DDH show significant asymmetry in femoral length between both the greater and lesser trochanter and the knee compared with controls. The intertrochanteric distance was a morphological factor related to femoral-length asymmetry. When undertaking total hip arthroplasty (THA) in the presence of DDH, long leg radiographs or CT measurements should be used to assess true leg-length discrepancy. Cite this article: Bone Joint J 2019;101-B:297–302.

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