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Anatomy of the hip

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https://www.readbyqxmd.com/read/28102157/sexual-dimorphism-of-acetabular-anatomy-based-on-three-dimensional-computed-tomography-image-of-pelvises
#1
Bartosz Musielak, Michał Rychlik, Marek Jóźwiak
BACKGROUND: The study aimed to compare sex differences in the morphology and spatial orientation of pelvic acetabula to advance the understanding of hip anatomy. MATERIAL AND METHODS: The study was based on three-dimensional reconstructions of computed tomography images of 50 female and 50 male acetabula. The images were used for spatial analysis of hip acetabula relative to the base of the sacral bone as the plane of reference. Statistical analysis was performed to compare angles relevant to the actual axis of the acetabulum (inclination angle, anteversion angle, tilt angle) as well as the volume and inner surface area of the acetabulum...
October 28, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28094482/real-time-ultrasound-guided-spinal-anesthesia-in-patients-with-predicted-difficult-anatomy
#2
Hesham Elsharkawy, Ankit Maheshwari, Rovnat Babazade, Anahi Perlas, Sherif Zaky, Loran M Soliman
BACKGROUND: There are limited reports of lumbar neuraxial blocks using real-time ultrasound in patients with predicted difficulties. We compared the number of attempts to perform spinal anesthesia using real time ultrasound guidance versus landmark technique in patients meeting predefined criteria for difficult spinal anesthesia. We also compared procedure time, block success, patient satisfaction and difficulty scores between groups. METHODS: Following institutional review board approval patients scheduled for total hip or knee arthroplasty with expected difficulty to perform spinal anesthesia were included...
January 17, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28066745/deep-gluteal-space-problems-piriformis-syndrome-ischiofemoral-impingement-and-sciatic-nerve-release
#3
Luis Perez Carro, Moises Fernandez Hernando, Luis Cerezal, Ivan Saenz Navarro, Ana Alfonso Fernandez, Alexander Ortiz Castillo
BACKGROUND: Deep gluteal syndrome (DGS) is an underdiagnosed entity characterized by pain and/or dysesthesias in the buttock area, hip or posterior thigh and/or radicular pain due to a non-discogenic sciatic nerve entrapment in the subgluteal space. Multiple pathologies have been incorporated in this all-included "piriformis syndrome", a term that has nothing to do with the presence of fibrous bands, obturator internus/gemellus syndrome, quadratus femoris/ischiofemoral pathology, hamstring conditions, gluteal disorders and orthopedic causes...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066740/microinstability-of-the-hip-a-previously-unrecognized-pathology
#4
Ioanna Bolia, Jorge Chahla, Renato Locks, Karen Briggs, Marc J Philippon
BACKGROUND: Hip microinstability is an established diagnosis; however, its occurrence is still debated by many physicians. Diagnosis of hip microinstability is often challenging, due to a lack of specific signs or symptoms, and patients may remain undiagnosed for long periods. This may lead to early manifestation of degenerative joint disease. Consequently, careful patient and family history must be obtained and diagnostic imaging should follow. After a thorough clinical evaluation of the patient with suspected hip microinstability, the physician should focus on how to improve symptoms and functionality in daily and sports activities...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066735/arthroscopic-approach-and-anatomy-of-the-hip
#5
Alessandro Aprato, Matteo Giachino, Alessandro Masse
BACKGROUND: Hip arthroscopy has gained popularity among the orthopedic community and a precise assessment of indications, techniques and results is constantly brought on. METHODS: In this chapter the principal standard entry portals for central and peripheral compartment are discussed. The description starts from the superficial landmarks for portals placement and continues with the deep layers. For each entry point an illustration of the main structures encountered is provided and the principal structures at risk for different portals are accurately examined...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066732/conservative-management-of-tendinopathies-around-hip
#6
REVIEW
Antonio Frizziero, Filippo Vittadini, Andrea Pignataro, Giuseppe Gasparre, Carlo Biz, Pietro Ruggieri, Stefano Masiero
BACKGROUND: The anatomy of hip is widely complex and several anatomical structures interact and contribute to its functioning. For position and role, hip and the surrounding tendons, which have their insertion around, are overstressed and often overloaded, especially in athletes. This could lead to the developing of several tendinopathies, among which the differential diagnosis is often complicated. Many conservative treatments are used in clinical practice, while actually, no defined conservative protocol is recommended...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28066731/imaging-of-the-hip-a-systematic-approach-to-the-young-adult-hip
#7
Sara Muñoz Chiamil, Claudia Astudillo Abarca
BACKGROUND: Great advances in knowledge and understanding of the biomechanics of the hip, both in arthroscopic procedures and imaging techniques, have expanded and improved the diagnosis of pathologies of the young adult hip. The anatomy of the hip joint is complex due to its morphology and orientation. The inter-pretation of the images requires deep knowledge of the osseous and soft tissue anatomy: muscles, tendons, ligaments, vessels and nerves. There are multiple imaging tools. Diagnostic techniques have different utilities and often are complementary...
July 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28053268/implant-options-for-the-treatment-of-intertrochanteric-fractures-of-the-hip-rationale-evidence-and-recommendations
#8
A R Socci, N E Casemyr, M P Leslie, M R Baumgaertner
AIMS: The aim of this paper is to review the evidence relating to the anatomy of the proximal femur, the geometry of the fracture and the characteristics of implants and methods of fixation of intertrochanteric fractures of the hip. MATERIALS AND METHODS: Relevant papers were identified from appropriate clinical databases and a narrative review was undertaken. RESULTS: Stable, unstable, and subtrochanteric intertrochanteric fractures vary widely in their anatomical and biomechanical characteristics, as do the implants used for their fixation...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28048362/su-f-j-161-prostate-contouring-in-patients-with-bilateral-hip-prostheses-impact-of-using-artifact-reduced-ct-images-and-mri
#9
A Elzibak, A Loblaw, G Morton, D Vesprini, S Liu, H Chung, M Davidson
PURPOSE: To investigate the usefulness of metal artifact reduction in CT images of patients with bilateral hip prostheses (BHP) for contouring the prostate and determine if the inclusion of MR images provides additional benefits. METHODS: Five patients with BHP were CT scanned using our clinical protocol (140kV, 300mAs, 3mm slices, 1.5mm increment, Philips Medical Systems, OH). Images were reconstructed with the orthopaedic metal artifact reduction (O-MAR) algorithm...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046473/su-c-206-03-metal-artifact-reduction-in-x-ray-computed-tomography-based-on-local-anatomical-similarity
#10
X Dong, X Yang, J Rosenfield, E Elder, A Dhabaan
PURPOSE: Metal implants such as orthopedic hardware and dental fillings cause severe bright and dark streaking in reconstructed CT images. These artifacts decrease image contrast and degrade HU accuracy, leading to inaccuracies in target delineation and dose calculation. Additionally, such artifacts negatively impact patient set-up in image guided radiation therapy (IGRT). In this work, we propose a novel method for metal artifact reduction which utilizes the anatomical similarity between neighboring CT slices...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28035753/osteonecrosis-is-unrelated-to-hip-anatomy-in-children-with-acute-lymphoblastic-leukemia
#11
Mary V Portera, Seth E Karol, Colton Smith, Wenjian Yang, Cheng Cheng, Michael D Neel, Ching-Hon Pui, Mary V Relling, Sue C Kaste
Osteonecrosis is a debilitating toxicity associated with acute lymphoblastic leukemia (ALL) treatment. A recent report associated interindividual differences in hip anatomy with the development of idiopathic osteonecrosis in adults. To evaluate the impact of hip anatomy on the development of therapy-related osteonecrosis, we retrospectively evaluated the femoral neck-shaft angle, femoral neck offset, and lateral center-edge angle using x-rays of 18 osteonecrosis cases and 46 control children treated for newly diagnosed ALL on a single protocol...
December 30, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28032697/patient-specific-orthopaedic-implants
#12
REVIEW
Jack M Haglin, Adam E M Eltorai, Joseph A Gil, Stephen E Marcaccio, Juliana Botero-Hincapie, Alan H Daniels
Patient-specific orthopaedic implants are emerging as a clinically promising treatment option for a growing number of conditions to better match an individual's anatomy. Patient-specific implant (PSI) technology aims to reduce overall procedural costs, minimize surgical time, and maximize patient outcomes by achieving better biomechanical implant fit. With this commercially-available technology, computed tomography or magnetic resonance images can be used in conjunction with specialized computer programs to create preoperative patient-specific surgical plans and to develop custom cutting guides from 3-D reconstructed images of patient anatomy...
November 2016: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28003941/negative-pressure-wound-therapy-with-instillation-in-a-chronic-non-healing-right-hip-trochanteric-pressure-ulcer
#13
Kevin W Broder, Brian Nguyen, Richard M Bodor
Complex pressure ulcer wound sites often present with a wide scope of barriers to healing ranging from high colonization of multi-drug-resistant pathogens to tortuous internal anatomy which make the wound recalcitrant to traditional wound care including standard negative pressure wound therapy (NPWT). Negative pressure wound therapy with instillation (NPWTi-d) provides an opportunity to manage and heal wounds with indications not met by standard NPWT such as cavitating wounds with complex undermining and tunneling...
November 14, 2016: Curēus
https://www.readbyqxmd.com/read/28002921/restoring-the-femoral-offset-prevent-early-migration-of-the-stem-in-total-hip-arthroplasty-an-ebra-fca-study
#14
G Vicenti, G Solarino, A Spinarelli, M Carrozzo, G Picca, R Maddalena, F Rifino, B Moretti
The use of modular stems is still debated and controversial. Some authors have highlighted a number of disadvantages of modular prostheses including high costs, the tendency to fracture, the fretting and corrosion and the increased production of debris. Other authors have emphasized several advantages to adapt the prosthesis to the morphometric differences of patients, to allow better accuracy in restoring the anatomy and biomechanics of hip joint. The advantages of the modular devices appear to be more evident in patients with developmental dysplasia of the hip (DDH)...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/27986427/gait-and-energy-consumption-in-adolescent-idiopathic-scoliosis-a-literature-review
#15
REVIEW
Aliyeh Daryabor, Mokhtar Arazpour, Guive Sharifi, Monireh Ahmadi Bani, Atefeh Aboutorabi, Navid Golchin
BACKGROUND: Adolescent idiopathic scoliosis (AIS) is a progressive growth disease that affects spinal anatomy, mobility, and left-right trunk symmetry. The disease can modify human gait. OBJECTIVE: We aimed to review articles describing the measurement of gait parameters and energy consumption in AIS during walking without any intervention. STUDY DESIGN: Literature review. METHODS: The search strategy was based on the Population Intervention Comparison Outcome method and included all relevant articles published from 1996 to 2015...
December 13, 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27965176/effect-of-acetabular-component-positioning-on-functional-outcomes-in-primary-total-hip-arthroplasty
#16
Prateek Goyal, Adrian Lau, Douglas D Naudie, Matthew G Teeter, Brent A Lanting, James L Howard
BACKGROUND: Acetabular component positioning is crucial to a successful total hip arthroplasty (THA). This study evaluated the effect of absolute acetabular component position as well as acetabular position relative to bony anatomy on patient-reported functional outcomes after primary THA. METHODS: Primary, press fit, hemispherical metal-on-polyethylene THA performed between 2003 and 2011 were analyzed. Western Ontario and McMaster Osteoarthritis Index (WOMAC), Harris Hip Score (HHS), Short Form-12 scores, and radiographs between 2 and 3 years after the index procedure were assessed...
August 26, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27923602/patient-specific-chondrolabral-contact-mechanics-in-patients-with-acetabular-dysplasia-following-treatment-with-peri-acetabular-osteotomy
#17
C L Abraham, S J Knight, C L Peters, J A Weiss, A E Anderson
OBJECTIVE: Using a validated, patient-specific finite element (FE) modeling protocol, we evaluated cartilage and labrum (i.e., chondrolabral) mechanics before and after peri-acetabular osteotomy (PAO) to provide insight into the ability of this procedure to improve mechanics in dysplastic hips. DESIGN: Five patients with acetabular dysplasia were recruited in this case-controlled, prospective study. Models, which included anatomy for bone, cartilage, and labrum, were generated from computed tomography (CT) arthrography scans acquired before and after PAO...
December 3, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27909669/reconstruction-of-massive-posterior-nonrepairable-acetabular-labral-tears-with-peroneus-brevis-tendon-allograft-arthroscopy-assisted-mini-open-approach
#18
Esther Moya, Luis Gerardo Natera, Carlomagno Cardenas, Emanuele Astarita, Vittorio Bellotti, Manel Ribas
Many of the described labral-reconstruction procedures are purely arthroscopic. This approach only allows segmentary reconstructions. For more extensive reconstructions, surgical dislocation of the hip still represents the more suitable approach. We present an arthroscopy-assisted procedure combined with an anterior mini-open approach, which could be considered for reconstruction of nonrepairable labral lesions located in the posterior aspect of the acetabulum and massive reconstructions in cases of global-pincer femoroacetabular impingement and protrusio acetabuli...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27909663/the-quebec-city-slider-a-technique-for-capsular-closure-and-plication-in-hip-arthroscopy
#19
Travis J Menge, Jorge Chahla, Eduardo Soares, Justin J Mitchell, Marc J Philippon
Biomechanical and clinical studies have shown that the hip joint capsule plays an important role in maintaining stability and hip mechanics, including rotation and translation. The recent literature has shown that capsule closure after hip arthroscopy helps to restore stability. Without restoration of the native anatomy, the hip joint may translate when patients engage in activities that place force across the hip, leading to either microinstability or frank dislocation. The purpose of this note is to describe our preferred technique of capsular closure or plication during hip arthroscopy...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27909120/restoration-of-the-centre-of-rotation-in-primary-total-hip-arthroplasty-the-influence-of-acetabular-floor-depth-and-reaming-technique
#20
G Meermans, J Van Doorn, J-J Kats
AIMS: One goal of total hip arthroplasty is to restore normal hip anatomy. The aim of this study was to compare displacement of the centre of rotation (COR) using a standard reaming technique with a technique in which the acetabulum was reamed immediately peripherally and referenced off the rim. PATIENTS AND METHODS: In the first cohort the acetabulum was reamed to the floor followed by sequentially larger reamers. In the second cohort the acetabulum was only reamed peripherally, starting with a reamer the same size as the native femoral head...
December 2016: Bone & Joint Journal
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