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Anatomy of the hip

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https://www.readbyqxmd.com/read/29131775/traumatic-hip-dislocation-what-the-orthopedic-surgeon-wants-to-know
#1
Jacob C Mandell, Richard A Marshall, Michael J Weaver, Mitchel B Harris, Aaron D Sodickson, Bharti Khurana
Hip dislocation is an important orthopedic emergency usually seen in young patients who have experienced high-energy trauma, often resulting in significant long-term morbidity. Rapid identification and reduction is critical, as prolonged dislocation increases the risk of developing avascular necrosis of the femoral head, and posttraumatic osteoarthritis is a common complication, even in the absence of associated fractures. Identification and timely management of hip dislocation are highly dependent on imaging, both at presentation and after attempted reduction...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29122473/automated-radiology-operative-note-communication-tool-closing-the-loop-in-musculoskeletal-imaging
#2
William Moore, Ankur Doshi, Priya Bhattacharji, Soterios Gyftopoulos, Gina Ciavarra, Danny Kim, Michael Recht
RATIONALE AND OBJECTIVES: Correlation of imaging studies and reference standard outcomes is a significant challenge in radiology. This study evaluates the effectiveness of a new communication tool by assessing the ability of this system to correctly match the imaging studies to arthroscopy reports and qualitatively assessing radiologist behavior before and after the implementation of this system. MATERIALS AND METHODS: Using a commercially available communication or educational tool and applying a novel matching rule algorithm, radiology and arthroscopy reports were matched from January 17, 2017 to March 1, 2017 based on anatomy...
November 6, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29119295/treatment-of-hip-fracture-of-pope-innocent-xii-by-marcello-malpighi-with-bed-rest
#3
REVIEW
Marco Bigoni, Giovanni Zatti, Nicolò Zanchi, Filippo Maria Anghilieri, Michele A Riva
Marcello Malpighi (1628-1694), who is referred to as the father of microscopical anatomy, histology, physiology and embryology was an Italian biologist and physician, well known for his discoveries on microscopical anatomy of kidney, circulating and lymphatic systems. As well as being a brilliant anatomist, Malpighi was also a valued physician so far as to became the personal physician of Pope Innocent XII (1615-1700). On 23 August 1691, one month after his election, the Pope fell to the ground hitting his left hip...
November 8, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29114928/a-new-substitute-for-formalin-application-to-embalming-cadavers
#4
Yoshinori Haizuka, Miki Nagase, Satoshi Takashino, Yasushi Kobayashi, Yoshihisa Fujikura, George Matsumura
The development of formalin-free fixatives is an urgent issue in gross anatomy because of the health hazard and the tissue-hardening actions of formalin. We recently identified the fixative, antimicrobial, and preservative effects of N-vinyl-2-pyrrolidone (NVP), a precursor of the water-soluble macromolecular polymer polyvinylpyrrolidone, in animal experiments. The aim of the present study is to investigate whether NVP solution can be used as an alternative to formalin in human cadaveric dissection. Twelve donated cadavers were infused with NVP via the femoral and common carotid arteries using a peristaltic pump...
November 7, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29098684/comparative-hindlimb-myology-of-foot-propelled-swimming-birds
#5
Glenna T Clifton, Jennifer A Carr, Andrew A Biewener
Several groups of birds have convergently evolved the ability to swim using their feet despite facing trade-offs with walking. However, swimming relative to terrestrial performance varies across these groups. Highly specialized divers, such as loons and grebes, excel at swimming underwater but struggle to stand on land, whereas species that primarily swim on the water surface, such as Mallards, retain the ability to move terrestrially. The identification of skeletal features associated with a swimming style and conserved across independent groups suggests that the hindlimb of foot-propelled swimming birds has adapted to suit the physical challenges of producing propulsive forces underwater...
November 3, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29095399/magnetic-resonance-imaging-mri-and-hip-arthroscopy-correlations
#6
Samuel E Carstensen, Erin C McCrum, Jennifer L Pierce, Frank W Gwathmey
The hip is a complex joint which commonly generates referrals to orthoaedic surgeons. Hip arthroscopy continues to expand its indications for addressing hip pathology. Before operative intervention, the appropriate information must be obtained with magnetic resonance imaging playing a significant role in the workup given its outstanding characterization of soft tissue anatomy. We attempt to highlight multiple hip findings to correlate intraoperative arthroscopic findings with specific magnetic resonance imaging images and sequences...
December 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/29093436/learning-curve-for-surgical-treatment-of-acetabular-fractures-a-retrospective-clinical-study-of-a-practical-and-theoretical-training-course
#7
Haci Bayram Tosun, Sancar Serbest, Seyit Ali Gümüştaş, Abuzer Uludag, Suat Celik
BACKGROUND Surgical treatment of acetabular fracture and the anatomic reconstruction of the hip joint are difficult to achieve due to the complex pelvic anatomy, and surgical training requires a prolonged and steep learning curve. The aim of this study was to evaluate the effects of an applied training course, including cadaveric dissection, for the surgical treatment of acetabular fractures. MATERIAL AND METHODS This retrospective study included 35 patients who underwent surgical treatment for acetabulum fractures between 2012-2016...
November 2, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29081850/obstacles-to-reduction-in-infantile-developmental-dysplasia-of-the-hip
#8
K Studer, N Williams, P Studer, M Baker, A Glynn, B K Foster, P J Cundy
PURPOSE: Identification of anatomical structures that block -reduction in developmental dysplasia of the hip (DDH) is -important for the management of this challenging condition. Obstacles to reduction seen on arthrogram are well-known. However, despite the increasing use of MRI in the assessment of adequacy of reduction in DDH, the interpretation of MRI patho-anatomy is ill-defined with a lack of relevant literature to guide clinicians. METHOD: This is a retrospective analysis of the MRI of patients with DDH treated by closed reduction over a five-year period (between 2009 and 2014)...
October 1, 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/29038943/a-lower-limb-pelvis-finite-element-model-with-3d-active-muscles
#9
Fuhao Mo, Fan Li, Michel Behr, Zhi Xiao, Guanjun Zhang, Xianping Du
A lower limb-pelvis finite element (FE) model with active three-dimensional (3D) muscles was developed in this study for biomechanical analysis of human body. The model geometry was mainly reconstructed from a male volunteer close to the anthropometry of a 50th percentile Chinese male. Tissue materials and structural features were established based on the literature and new implemented experimental tests. In particular, the muscle was modeled with a combination of truss and hexahedral elements to define its passive and active properties as well as to follow the detailed anatomy structure...
October 16, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29035609/single-surgeon-experience-and-complications-of-a-fixed-bearing-total-ankle-arthroplasty
#10
Garett J Pangrazzi, Erin A Baker, Phillip J Shaheen, Chikezie N Okeagu, Paul T Fortin
BACKGROUND: Total ankle arthroplasty (TAA) has historically resulted in inferior survivorship rates compared with total hip and knee arthroplasty, because of technical issues unique to ankle anatomy. In this study, a single-surgeon series of intra- and postoperative complications as well as resultant reoperations/revisions of the Tornier Salto Talaris, a fixed-bearing TAA prosthesis, were reviewed. METHODS: Medical records from index procedure to latest follow-up of primary TAA were reviewed...
October 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/29032422/the-deep-layer-of-the-tractus-iliotibialis-and-its-relevance-when-using-the-direct-anterior-approach-in-total-hip-arthroplasty-a-cadaver-study
#11
David Putzer, Matthias Haselbacher, Romed Hörmann, Günter Klima, Michael Nogler
INTRODUCTION: Surgical approaches through smaller incisions reveal less of the underlying anatomy, and therefore, detailed knowledge of the local anatomy and its variations is important in minimally invasive surgery. The aim of this study was to determine the location, extension, and histomorphology of the deep layer of the iliotibial band during minimally invasive hip surgery using the direct anterior approach (DAA). MATERIALS AND METHODS: The morphology of the iliotibial tract was determined in this cadaver study on 40 hips with reference to the anterior superior iliac spine and the tibia...
October 14, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29027688/preoperative-ultrasonographic-assessment-of-the-anterior-pelvic-plane-for-personalized-total-hip-replacement
#12
Andrzej Kochman, Adrian Goral, Josef Kozak, Wojciech Marek, Monika Morawska-Kochman, Marek Synder
OBJECTIVES: Correct positioning of the acetabular component is a key factor in minimizing the risk of dislocation after total hip replacement (THR) surgery. A "safe" orientation of the cup is usually defined by 2 angles measured between its geometric axis and the anterior pelvic plane. However, in the current state-of-the-art approach to THR surgery, the intraoperative orientation of the anterior pelvic plane cannot be measured. Even less is known about the functional orientation of the pelvis, which determines the postoperative orientation of the cup during the patient's everyday activities...
October 13, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28991677/hurst-revisited-are-symptoms-and-signs-of-functional-motor-and-sensory-disorders-dependent-on-idea
#13
Jon Stone, Jennifer Mutch, Denis Giannokous, Ingrid Hoeritzauer, Alan Carson
INTRODUCTION: Symptoms and signs of functional (psychogenic) motor and sensory disorder are often said to be dependent on the patients' idea of what symptoms should be, rather than anatomy and physiology. This hypothesis has however rarely been tested. MATERIALS AND METHODS: Inspired by a brief experiment carried out in 1919 by neurologist Arthur Hurst we aimed to assess the views of healthy non-medical adults towards paralysis and numbness and their response to tests for functional disorders when asked to pretend to have motor and sensory symptoms...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28975538/proximal-femoral-anatomy-and-collared-stems-in-hip-arthroplasty-is-a-single-collar-size-sufficient
#14
Nicolas Bonin, Jean-Emmanuel Gedouin, Vincent Pibarot, Jacques Bejui-Hughues, Hugo Bothorel, Mo Saffarini, Cécile Batailler
BACKGROUND: Even if the benefits of collars are unclear, they remain widely used, in several femoral stem designs. This study aimed to determine whether collar size should be proportional to hip dimensions and morphology. The hypothesis was that the collar should be larger for greater stem sizes and for varus femoral necks. METHODS: Computed Tomography scans of 204 healthy hips were digitally analysed and manually templated to determine principle dimensions, appropriate stem size and model, as well as cortical distance at the femoral calcar (ideal collar size)...
October 3, 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28971085/radiographic-evaluation-of-cementation-technique-using-polished-conical-triple-tapered-femoral-stem-in-hip-arthroplasty
#15
Ademir Antônio Schuroff, Mark Deeke, Marco Antônio Pedroni, Fernando Silva Lupselo, Rodrigo Ernesto Kunz, Alexandre Matos Lima
OBJECTIVE: To radiographically evaluate the quality of cementation and implantation technique using a polished, triple-tapered femoral stem in total hip arthroplasty (THA). METHOD: Retrospective study with radiographic evaluation of 86 hips in 83 patients who underwent to primary THA with the triple-tapered cemented femoral stem C-Stem (DePuy Orthopedics, Warsaw, Indiana). Cases with at least one-year of follow-up were included, and data related to preoperative, immediate postoperative, and late postoperative radiographic evolution were recorded...
2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28951648/surgical-hip-dislocation-through-a-direct-lateral-approach-a-cadaveric-study-of-vascular-danger-zones
#16
Mohamad J Halawi, David Brigati, Jennifer M McBride, Richard L Drake, Peter J Brooks
OBJECTIVE: There is limited information on the potential danger to the vascularity of the femoral head during surgical dislocation of the hip using the direct lateral approach. The objective of this study was to investigate the topographical anatomy of the medial femoral circumflex artery (MFCA), the primary source of blood supply to the femoral head, in relationship to the direct lateral approach. METHODS: Seven unembalmed cadaver hips had dye injection into either the profunda femoris artery or the MFCA...
July 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28942025/radiation-dose-and-magnification-in-pelvic-x-ray-eos%C3%A2-imaging-system-versus-plain-radiographs
#17
P Chiron, L Demoulin, K Wytrykowski, E Cavaignac, N Reina, J Murgier
BACKGROUND: In plain pelvic X-ray, magnification makes measurement unreliable. The EOS™ (EOS Imaging, Paris France) imaging system is reputed to reproduce patient anatomy exactly, with a lower radiation dose. This, however, has not been assessed according to patient weight, although both magnification and irradiation are known to vary with weight. We therefore conducted a prospective comparative study, to compare: (1) image magnification and (2) radiation dose between the EOS imaging system and plain X-ray...
September 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28931352/relationship-between-pelvic-incidence-angle-and-blood-concentration-of-chromium-and-cobalt-ions-after-metal-on-metal-hip-replacement-a-brief-report
#18
K Pernaa, M Saltychev, K Mäkelä
BACKGROUND AND AIMS: The wear of metal-on-metal hip implants may increase chromium or cobalt ion blood level. This phenomenon may depend among other things on the particularity of spinopelvic anatomy. The effect of pelvic incidence angle on the wear of metal-on-metal hip implants is not known. The objective of the study was to investigate whether such effect does exist. MATERIAL AND METHODS: The pelvic incidence and inclination of acetabular component angles of 89 patients after unilateral metal-on-metal hip replacement were compared with blood level of chromium and cobalt ions using Pearson correlation coefficient...
September 1, 2017: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/28924737/contribution-to-the-anatomical-nomenclature-concerning-lower-limb-anatomy
#19
David Kachlik, Vladimir Musil, Vaclav Baca
PURPOSE: The aim of this article is to extend and revise the sections of Terminologia Anatomica (TA) dealing with the lower limb structures and to justify the use of newly proposed anatomical terms in clinical medicine, education, and research. METHODS: Anatomical terms were gathered during our educational experience from anatomical textbooks and journals and compared with the four previous editions of the official Latin anatomical nomenclature. RESULTS: The authors summarise 270 terms with their definitions and explanations for both constant and variable morphological structures (bones, joints, muscles, vessels, nerves and superficial structures) of the hip, thigh, knee, leg, ankle, and foot completed with several grammatical remarks and some general anatomical terms...
September 18, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28916885/geometric-analysis-and-clinical-outcome-of-two-cemented-stems-for-primary-total-hip-replacement-with-and-without-modular-necks
#20
Marcel Haversath, Christine Wendelborn, Marcus Jäger, Boris Schmidt, Wojciech Kowalczyk, Stefan Landgraeber
INTRODUCTION: Restoration of the physiological biomechanical principles of the hip is crucial in total hip replacement. The aim of this study was to compare an arthroplasty system with different offset options (a: Exeter(®)) with a dual-modular stem (b: Profemur Xm(®)). MATERIALS AND METHODS: A local and an inertial coordinate system were used to assist the description of the components' assembly in the prosthesis. A resection line of the femoral head in standard position was added to the arthroplasties and geometric parameters were measured...
September 15, 2017: Archives of Orthopaedic and Trauma Surgery
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