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https://www.readbyqxmd.com/read/28432458/is-the-evaluation-of-the-anterior-inferior-iliac-spine-aiis-in-the-ap-pelvis-possible-analysis-of-conventional-x-rays-and-3d-ct-reconstructions
#1
David R Krueger, Markus Windler, Markus Geßlein, Michael Schuetz, Carsten Perka, Joerg H Schroeder
INTRODUCTION: A hypertrophic AIIS has been identified as a cause for extraarticular hip impingement and is classified according to Hetsroni using 3D-CT reconstructions. The role of the conventional AP pelvis X-ray, which is the first standard imaging step for the evaluation of hip pain, has not been investigated yet. MATERIALS AND METHODS: AP pelvis X-rays and 3D-CT reconstructions of patients were evaluated regarding their morphology of the AIIS. The conventional X-rays were categorized into three groups according to the projection of the AIIS: above (A) or below (B) the acetabular sourcil or even exceeding the anterior acetabular rim (C)...
April 21, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28429045/assessment-of-the-alpha-angle-and-mobility-of-the-hip-in-patients-with-noncontact-anterior-cruciate-ligament-injury
#2
Osmar Valadao Lopes, Gustavo Tragnago, Cristiano Gatelli, Rogério Nascimento Costa, Leandro de Freitas Spinelli, Paulo Renato Fernandes Saggin, André Kuhn
PURPOSE: To evaluate the alpha angle of the hip in patients with noncontact anterior cruciate ligament (ACL) injury and compare it with patients without injury. In addition, external and internal rotation of the hip was assessed and correlated with the alpha angle. METHODS: The alpha angle of the ipsilateral hip was assessed in 41 subjects with non-contact ACL tear and compared with 39 subjects with no tear. The external and internal rotation of the ipsilateral hip was also evaluated...
April 20, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28424914/association-of-femoral-head-and-acetabular-fractures-on-computerized-tomography-correlation-with-the-judet-letournel-classification
#3
Nicholas M Beckmann, Naga R Chinapuvvula, Chunyan Cai
PURPOSE: Tha aims of this study were to identify the incidence of femoral head fractures in the setting of acetabular fractures and to determine the relationship between acetabular fracture pattern, the degree of acetabular fracture displacement, and the incidence of femoral head fractures. MATERIALS AND METHODS: This is a retrospective cross-sectional study of 274 patients with 300 acetabular fractures diagnosed on pelvic CT. Acetabular fractures were categorized using the Judet-Letournel classification system...
April 19, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28423434/-radiologic-presentation-in-subspine-impingement-and-correlation-with-intraarticular-impingement-in-the-hip
#4
David R Krüger, Michael Schütz, Carsten Perka, Jörg Schröder
Background Besides the known intraarticular femoroacetabular impingement (FAI), recently forms of extra-articular impingement of the hip have been increasingly recognized. Recent studies have described an extra-articular impingement between a distal extension of the anterior inferior iliac spine (AIIS) and the femoral neck (AIIS or subspine impingement). Evidently, an association between this subspine impingement and an intraarticular FAI seems to exist. Little is known about the incidence of this impingement type and the value of its radiological diagnostics...
April 19, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28422563/effects-of-anterior-knee-displacement-during-squatting-on-patellofemoral-joint-stress
#5
Thomas W Kernozek, Naghmeh Gheidi, Matthew Zellmer, Jordan Hove, Becky L Heinert, Michael R Torry
CONTEXT: Squatting is a common rehabilitation training exercise for Patellofemoral pain syndrome (PFPS). Patellofemoral joint stress (PFJS) during squatting with more anterior knee displacement has not been systematically investigated. OBJECTIVE: The aim was to compare PFJS during squatting using two techniques: Squat while keeping the knees before the toes (SBT) and squat while allowing the knees to go past the toes (SPT). SETTING: University research laboratory...
April 19, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28421126/femoral-neck-strain-during-maximal-contraction-of-isolated-hip-spanning-muscle-groups
#6
Saulo Martelli
The aim of the study was to investigate femoral neck strain during maximal isometric contraction of the hip-spanning muscles. The musculoskeletal and the femur finite-element models from an elderly white woman were taken from earlier studies. The hip-spanning muscles were grouped by function in six hip-spanning muscle groups. The peak hip and knee moments in the model were matched to corresponding published measurements of the hip and knee moments during maximal isometric exercises about the hip and the knee in elderly participants...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28416831/-morphology-character-and-reduction-methods-of-sagittally-unstable-intertrochanteric-fractures
#7
S Zhang, J Y Zhang, D M Yang, M Yang, P X Zhang
OBJECTIVE: To investigate the morphology character of sagittally unstable intertrochanteric fractures and reduction methods. METHODS: A retrospective study was used to analyze the clinical data of sagittally unstable intertrochanteric fractures cases, which were treated with proximal femoral nail anti-rotation (PFNA) fixation from March 2009 to June 2016. In the study, 36 cases were followed up completely, in which 17 cases accepted open reduction, and the other 19 cases accepted minimally invasive reduction...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416828/-application-of-bilateral-direct-anterior-approach-total-hip-arthroplasty-a-report-of-22-cases
#8
J Tang, M Lv, Y X Zhou, J Zhang
OBJECTIVE: To analyze the operation technique and the methods to avoid early complications on the learning curve for bilateral direct anterior approach (DAA) total hip arthroplasty (THA). METHODS: We retrospectively studied a series of continued cases with bilateral avascular necrosis of the femoral head (AVN) or degenerative dysplastic hip and rheumatoid arthritis that were treated by DAA THA in Beijing Jishuitan Hospital. A total of 22 patients with 44 hips were analyzed from June 2014 to August 2016 in this study...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416827/-comparison-of-the-effects-of-total-hip-arthroplasty-via-direct-anterior-approach-and-posterolateral-piriformis-sparing-approach
#9
J Xu, W D Zhuang, X W Li, G Y Yu, Y Lin, F Q Luo, Y H Xiao
OBJECTIVE: To compare the clinical effects of direct anterior approach (DAA) and posterolateral piriformis-sparing approach (Mis-PLA) for minimally invasive surgery of total hip arthroplasty. METHODS: The patients who had total hip arthroplasty from March 2015 to February 2016 were randomly divided into 2 groups: DAA group and Mis-PLA group. In the study, 43 patients (45 hips) were performed with total hip replacement via the direct anterior approach (DAA group)...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416826/-surgical-technique-and-early-clinical-outcomes-of-direct-anterior-approach-to-total-hip-arthroplasty
#10
M Lv, J Q Zhang, X S Wang, Y Huang, W Li, C Y Zhang
OBJECTIVE: To describe the surgical technique of direct anterior approach to total hip arthroplasty and to report the early clinical outcomes. METHODS: A series of 100 consecutive, unselected patients who had 116 primary total hip arthroplasty surgeries (16 bilateral) done through direct anterior approach from March 11 2015 to June 21 2016 was reviewed. There were 50 male patients and 50 female patients. The average patient age was 51 years, and the average body mass index was 24...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416825/-comparison-of-efficacy-and-safety-between-the-anterior-and-the-posterior-approaches-to-total-hip-arthroplasty
#11
Y J Zhang, J Li, K Qi, C C Xue, W D Xu
OBJECTIVE: To compare the efficacy and safety between direct anterior approach (DAA) and posterior approach (PA) in total hip arthroplasty. METHODS: This study evaluated postoperative results of 92 consecutive total hip arthroplasties performed by a single surgeon; 44 from the DAA, and 48 from PA. The age, body mass index, operation time, blood loss, hospital stay, positioning of the artificial hip, postoperative Harris score and postoperative complications were recorded and analyzed...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28416824/-gait-analysis-at-the-early-stage-after-direct-anterior-approach-in-total-hip-arthroplasty
#12
H Y Wang, P D Kang, Y Nie, H Y Zhao, Z Y Yang, F X Pei
OBJECTIVE: To evaluate the result of operation and gait analysis at the early stage after direct anterior approach (DAA) in total hip arthroplasty (THA). METHODS: In this study, 20 patients who suffered from necrosis of femoral head or developmental dysplasia of the hip were scheduled to undergo THA. The basic information and visual analogue scale (VAS) score, Harris score before and after surgery were recorded. All of the patients finished the gait analysis before the surgery and 6 weeks and 12 weeks after the surgery, the data were compared with those of normal adult people...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28412060/minimum-2-year-outcomes-of-arthroscopic-management-of-symptomatic-hip-labrum-tears-in-patients-with-global-acetabular-overcoverage
#13
Sivashankar Chandrasekaran, Nader Darwish, Mary R Close, Carlos Suarez-Ahedo, Parth Lodhia, Benjamin G Domb
PURPOSE: To report minimum 2-year patient-reported outcomes (PROs) after hip arthroscopy (HA) for symptomatic labral tears in patients with global acetabular overcoverage. METHODS: This study was a retrospective case series of patients who underwent HA from April 2008 to April 2013. The inclusion criteria were patients with global acetabular overcoverage, defined as a lateral center-edge angle greater than 40°, and with coxa profunda, defined radiologically by the ilioischial line lateral to the acetabular floor...
April 12, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28407522/physiological-arousal-accompanying-postural-responses-to-external-perturbations-after-stroke
#14
C L Pollock, M G Carpenter, M A Hunt, A Gallina, T M Vieira, T D Ivanova, S J Garland
OBJECTIVE: The purpose of this study was to examine simultaneously the level of physiological arousal and the postural response to external perturbations in people post-stroke compared to age-matched controls to build a more comprehensive understanding of the effect of stroke on postural control and balance self-efficacy. METHODS: Participants stood with each foot on separate force platforms. Ten applications of loads of 2% body weight at the hips perturbed the participant anteriorly under two conditions: investigator-triggered or self-triggered (total 20)...
March 18, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28405809/measurement-considerations-on-examiner-dependent-factors-in-the-ultrasound-assessment-of-developmental-dysplasia-of-the-hip
#15
Alexander Kolb, Emir Benca, Madeleine Willegger, Stephan E Puchner, Reinhard Windhager, Catharina Chiari
PURPOSE: The standardized sonographic hip screening according to Graf has increased reliability and comparability of measurements in the screening of developmental dysplasia of the hip (DDH). However, examiner dependent factors have been discussed to influence sonographic measurements. The objectives of this study were to examine the tolerance of the transducer positioning and to analyse the impact of transducer inclinations on Graf's hip grading system. MATERIALS AND METHODS: Twenty-four hips in consecutive newborns were screened sonographically in combination with an optoelectronic motion capture system to trace transducer positions in space...
April 12, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28401279/current-concepts-in-the-diagnosis-and-management-of-extra-articular-hip-impingement-syndromes
#16
REVIEW
Naoki Nakano, Grace Yip, Vikas Khanduja
PURPOSE: Extra-articular hip impingement syndromes encompass a group of conditions that have previously been an unrecognised source of pain in the hip and on occasion been associated with intra-articular hip impingement as well. As arthroscopic techniques for the hip continue to evolve, the importance of these conditions has been recognised recently and now form an important part of the differential of an individual presenting with hip pain. The aim of this article, therefore, is to provide the reader with an evidence-based and comprehensive update of these syndromes...
April 11, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28391429/femoral-neck-fracture-osteosynthesis-by-the-biplane-double-supported-screw-fixation-method-bdsf-reduces-the-risk-of-fixation-failure-clinical-outcomes-in-207-patients
#17
Orlin Filipov, Karl Stoffel, Boyko Gueorguiev, Christoph Sommer
INTRODUCTION: Osteosynthesis of femoral neck fractures is related up to 46% rate of complications. The novel method of biplane double-supported screw fixation (BDSF; Filipov's method) offers better stability using three medially diverging cannulated screws with two of them buttressed on the calcar. Biomechanically, the most effective component is the distal screw placed at steeper angle and supported on a large area along the distal and posterior cortex of the femoral neck following its spiral anterior curve...
April 8, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28391177/iliocapsularis-technical-application-of-fine-wire-electromyography-and-direction-specific-action-during-maximum-voluntary-isometric-contractions
#18
Peter Lawrenson, Alison Grimaldi, Kay Crossley, Paul Hodges, Bill Vicenzino, Adam Ivan Semciw
The iliocapsularis muscle of the anterior hip may play an important role in hip function, but no electromyographic (EMG) recordings have been made. This muscle provides the most substantial muscular attachment to the anterior hip capsule and is hypothesised to have a dynamic role to limit capsular impingement and to augment joint stability. Current understanding of the function of iliocapsularis is based on limited cadaveric and radiographic studies. Located deep over the hip joint it would require intramuscular fine-wire EMG to evaluate its activity directly with limited cross-talk from overlying muscles...
March 27, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28390166/application-of-navigated-ultrasound-for-assessment-of-the-anterior-pelvic-plane-in-patients-with-degenerative-hip-diseases
#19
Andrzej Kochman, Adrian Goral, Tobias Martin, Wojciech Marek, Josef Kozak, Monika Morawska-Kochman, Marek Synder
OBJECTIVES: Correct positioning of the acetabular cup is the key for successful total-hip replacement. In common clinical practice, the target alignment of the cup is defined with respect to the anterior pelvic plane. In patients with substantial anterior pelvic plane inclination, this condition may lead to inappropriate distribution of the load on the cup, as most of the forces exerted within the hip joint act along the vertical axis. With the known pelvic inclination, it is possible to readjust the position of the cup with respect to the individual posture of the patient...
April 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28389885/anatomical-evaluation-of-lumbar-nerves-using-diffusion-tensor-imaging-and-implications-of-lateral-decubitus-for-lateral-transpsoas-approach
#20
Yasuhiro Oikawa, Yawara Eguchi, Atsuya Watanabe, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Yoshihiro Sakuma, Go Kubota, Kazuhide Inage, Takeshi Sainoh, Jun Sato, Kazuki Fujimoto, Masao Koda, Takeo Furuya, Koji Matsumoto, Yoshitada Masuda, Yasuchika Aoki, Kazuhisa Takahashi, Seiji Ohtori
PURPOSE: Recently, lateral interbody fusion (LIF) has become more prevalent, and evaluation of lumbar nerves has taken on new importance. We report on the assessment of anatomical relationships between lumbar nerves and vertebral bodies using diffusion tensor imaging (DTI). METHODS: Fifty patients with degenerative lumbar disease and ten healthy subjects underwent DTI. In patients with lumbar degenerative disease, we studied nerve courses with patients in the supine positions and with hips flexed...
April 7, 2017: European Spine Journal
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