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Pelvic anatomy

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https://www.readbyqxmd.com/read/29651575/assessment-of-pelvic-tilt-in-anteroposterior-radiographs-by-means-of-tilt-ratios
#1
T Schwarz, A Benditz, H-R Springorum, J Matussek, G Heers, M Weber, T Renkawitz, J Grifka, B Craiovan
INTRODUCTION: In anteposterior (AP) radiographs, cup position in total hip arthroplasty and acetabular anatomy in hip-preserving surgery are highly influenced by pelvic tilt. The sagittal rotation of the anterior pelvic plane is an important measurement of pelvic tilt during hip surgery. Thus, correct evaluation of cup position and acetabular parameters requires the assessment of pelvic tilt in AP radiographs. METHODS: Changes in pelvic tilt inversely change the height of the lesser pelvis and the obturator foramen in AP radiographs...
April 12, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29644478/reconstruction-of-membranous-urethral-strictures
#2
REVIEW
Javier C Angulo, Reynaldo G Gómez, Dmitriy Nikolavsky
PURPOSE OF REVIEW: Due to the proximity of the rhabdosphincter and cavernous nerves to the membranous urethra, reconstruction of membranous urethral stricture implies a risk of urinary incontinence and erectile dysfunction. To avoid these complications, endoscopic management of membranous urethral strictures is traditionally favored, and bulboprostatic anastomosis is reserved as the main classical approach for open reconstruction of recalcitrant membranous urethral stricture. The preference for the anastomotic urethroplasty among reconstructive urologists is likely influenced by the familiarity and experience with trauma-related injuries...
April 11, 2018: Current Urology Reports
https://www.readbyqxmd.com/read/29628615/pelvic-artery-embolization-for-treatment-of-postpartum-hemorrhage
#3
REVIEW
Jonathan D Lindquist, Robert L Vogelzang
Postpartum hemorrhage (PPH) is the leading cause of maternal perinatal morbidity and mortality worldwide. Defined as greater than 500 mL blood loss after vaginal delivery, and greater than 1,000 mL blood loss after cesarean delivery, PPH has many causes, including uterine atony, lower genital tract lacerations, coagulopathy, and placental anomalies. Correction of coagulopathy and identification of the cause of bleeding are mainstays of treatment. Medical therapies such as uterotonics, balloon tamponade, pelvic artery embolization, and uterine-sparing surgical options are available...
March 2018: Seminars in Interventional Radiology
https://www.readbyqxmd.com/read/29626286/multidetector-ct-of-expected-findings-and-complications-after-hysterectomy
#4
REVIEW
Massimo Tonolini
Indicated to manage a variety of disorders affecting the female genital tract, hysterectomy represents the second most common gynaecological operation after caesarean section. Performed via an open, laparoscopic or vaginal approach, hysterectomy is associated with non-negligible morbidity and occasional mortality. Iatrogenic complications represent a growing concern for gynaecologists and may result in prolonged hospitalisation, need for interventional procedures or repeated surgery, renal impairment and malpractice claims...
April 6, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29624551/three-dimensional-modeling-for-crohn-s-fistula-in-ano-a-novel-interactive-approach
#5
David Lam, Eric Yong, Basil D'Souza, Rodney Woods
BACKGROUND: Pelvic MRI allows for clear delineation of anatomy in Crohn's fistula-in-ano, although its interpretation is often difficult for nonradiologists. OBJECTIVE: The aim was to develop a 3-dimensional model where fistula tracts and their relationship to the sphincter complex can be accurately defined, which can then be rotated in multiple axes by the surgeon. DESIGN: A 3-dimensional model was created based on MRI images. An additional 3-dimensional T2-weighted sequence was added to the existing MRI protocol to obtain high-resolution images...
May 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29621612/laparoscopic-anterior-pelvic-exenteration-with-super-radical-parametrectomy-for-a-recurrent-low-grade-endometrial-sarcoma-that-is-resistant-to-hormone-therapy-and-chemotherapy
#6
Hiroyuki Kanao, Tsuyoshi Hisa, Makiko Omi, Minoru Nagashima, Shuhei Okamoto, Yoichi Aoki, Terumi Tanigawa, Maki Matoda, Sanshiro Okamoto, Hidetaka Nomura, Kohei Omatsu, Kazuyoshi Kato, Kuniko Utsugi, Nobuhiro Takeshima
STUDY OBJECTIVE: To show total laparoscopic complete resection of a recurrent low grade endometrial sarcoma. DESIGN: Step-by-step demonstration of the technique of laparoscopic anterior pelvic exenteration with super radical parametrectomy, including the explanation of a detail pelvic anatomy. (Canadian Task Force Classification III) SETTING: Low grade endometrial stromal sarcoma (LGESS) is a rare malignancy that makes around 0.2% of all uterine malignancies [1]...
April 2, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29610309/hip-extensor-mechanics-and-the-evolution-of-walking-and-climbing-capabilities-in-humans-apes-and-fossil-hominins
#7
Elaine E Kozma, Nicole M Webb, William E H Harcourt-Smith, David A Raichlen, Kristiaan D'Août, Mary H Brown, Emma M Finestone, Stephen R Ross, Peter Aerts, Herman Pontzer
The evolutionary emergence of humans' remarkably economical walking gait remains a focus of research and debate, but experimentally validated approaches linking locomotor capability to postcranial anatomy are limited. In this study, we integrated 3D morphometrics of hominoid pelvic shape with experimental measurements of hip kinematics and kinetics during walking and climbing, hamstring activity, and passive range of hip extension in humans, apes, and other primates to assess arboreal-terrestrial trade-offs in ischium morphology among living taxa...
April 2, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29607264/postcranial-skeletal-anatomy-of-the-holotype-and-referred-specimens-of-buitreraptor-gonzalezorum-makovicky-apestegu%C3%A3-a-and-agnol%C3%A3-n-2005-theropoda-dromaeosauridae-from-the-late-cretaceous-of-patagonia
#8
Federico A Gianechini, Peter J Makovicky, Sebastián Apesteguía, Ignacio Cerda
Here we provide a detailed description of the postcranial skeleton of the holotype and referred specimens of Buitreraptor gonzalezorum . This taxon was recovered as an unenlagiine dromaeosaurid in several recent phylogenetic studies and is the best represented Gondwanan dromaeosaurid discovered to date. It was preliminarily described in a brief article, but a detailed account of its osteology is emerging in recent works. The holotype is the most complete specimen yet found, so an exhaustive description of it provides much valuable anatomical information...
2018: PeerJ
https://www.readbyqxmd.com/read/29577446/the-anatomy-of-the-male-inferior-hypogastric-plexus-what-should-we-know-for-nerve-sparing-surgery
#9
Raphael Röthlisberger, Valerie Aurore, Susanne Boemke, Hannes Bangerter, Mathias Bergmann, George N Thalmann, Valentin Djonov
INTRODUCTION: The aim of this study was to investigate the nerve supply to the structures in the male lesser pelvis and review its clinical relevance, especially during nerve sparing surgery. MATERIAL AND METHODS: Three formalin-embalmed and 16 Thiel-embalmed male hemipelves were used. They were microdissected after repeated treatments with nitric acid diluted 1:10 with milliQ-water. RESULTS: The inferior hypogastric plexus is a fan-ike structure lateral from the rectum on the fascia of the levator ani...
March 25, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29575371/practical-guide-to-dynamic-pelvic-floor-mri
#10
Mariya Kobi, Milana Flusberg, Viktoriya Paroder, Victoria Chernyak
Pelvic floor dysfunction encompasses a spectrum of functional disorders that result from impairment of the ligaments, fasciae, and muscles supporting the pelvic organs. It is a prevalent disorder that carries a lifetime risk over 10% for undergoing a surgical repair. Pelvic floor weakness presents as a wide range of symptoms, including pain, pelvic pressure or bulging, urinary and fecal incontinence, constipation, and sexual dysfunction. A correct diagnosis by clinical examination alone can be challenging, particularly in cases involving multiple compartments...
March 25, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29565946/anatomy-pathophysiology-and-interventional-therapies-for-chronic-pelvic-pain-a-review
#11
Corey W Hunter, Brad Stovall, Grant Chen, Jonathan Carlson, Robert Levy
BACKGROUND: Chronic pelvic pain (CPP) represents a group of poorly understood disorders that are often refractory to conventional treatment. Referral to pain management typically occurs later in the continuum of care; as such, many of the injections and nerve blocks commonly prescribed for such patients are potentially limited in efficacy. While neuromodulation is conventionally considered the next algorithmic step in the treatment of chronic pain after injections fail, there is a common perception that neuromodulation is largely ineffective for CPP conditions...
March 2018: Pain Physician
https://www.readbyqxmd.com/read/29564836/a-practical-guide-for-planning-pelvic-bone-percutaneous-interventions-biopsy-tumour-ablation-and-cementoplasty
#12
REVIEW
Marta Oñate Miranda, Thomas P Moser
Percutaneous approaches for pelvic bone procedures (bone biopsies, tumour ablation and cementoplasty) are multiple and less well systematised than for the spine or extremities. Among the different imaging techniques that can be used for guidance, computed tomography (CT) scan is the modality of choice because of the complex pelvic anatomy. In specific cases, such as cementoplasty where real-time evaluation is a determinant, a combination of CT and fluoroscopy is highly recommended. The objective of this article is to propose a systematic approach for image-guided pelvic bone procedures, as well as to provide some technical tips...
March 21, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29560394/intraoperative-bladder-perforation-during-primary-total-hip-arthroplasty
#13
Andrew Konopitski, Anthony Boniello, Patrick Wang, Mitesh Shah, Andrew Old, Kevin Gingrich
We present a unique case of bladder perforation occurring intraoperatively during primary total hip arthroplasty. It is suspected that the patient's aberrant bladder anatomy, with idiopathic erosion of the quadrilateral space, predisposed the patient to bladder injury. Several preoperative risk factors for bladder injury were identified in the literature. These factors include cemented acetabular components, previous history of hip arthroplasty, history of pelvic trauma or intrapelvic surgery, and poor bone quality...
March 2018: Arthroplasty Today
https://www.readbyqxmd.com/read/29555558/are-commercially-available-precontoured-anatomical-clavicle-plating-systems-offering-the-purported-superior-optimum-fitting-to-the-clavicle-a-cadaveric-analysis-and-review-of-literature
#14
D E Bauer, A Hingsammer, P Schenk, L Vlachopoulos, M A Imam, P Fürnstahl, D C Meyer
PURPOSE: The indication for operative treatment of displaced midshaft clavicle fractures remains controversial. However, if plate fixation is considered, implant prominence and skin irritation are the most common causes for re-operation. Low profile implants as well as closely contouring plates to the individual anatomy may reduce these complications. The aim of this study was to compare the fitting accuracy and implant prominence of 3.5mm pelvic reconstruction plates (PRP) with pre-contoured anatomical clavicle plates (PACP) for midshaft clavicle fractures...
March 16, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29554323/intraoperative-nerve-monitoring-in-robotic-assisted-resection-of-presacral-ganglioneuroma-operative-technique
#15
Tomas Garzon-Muvdi, Allan Belzberg, Mohamad E Allaf, Jean-Paul Wolinsky
BACKGROUND: Robotic-assisted techniques have been implemented in the surgical treatment of tumors in the pelvis, abdomen, and thorax. In pelvic tumors, robotic-assisted techniques evade the need for sizable surgical exposure, but make stimulation of the nerves of the sacral plexus very difficult. OBJECTIVE: To describe how laparoscopic robotic-assisted surgery can couple with tools such as the nerve stimulator to aid in the resection of presacral masses emanating from the neural elements and potentially improve neurological outcome by preventing inadvertent injury to involved nerves...
March 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29551299/-nerve-sparing-techniques-in-deep-endometriosis-surgery-to-prevent-urinary-or-digestive-functional-disorders-techniques-and-results-cngof-has-endometriosis-guidelines
#16
B Rabischong, R Botchorishvili, N Bourdel, S Curinier, S Campagne-Loiseau, J L Pouly, M Canis
OBJECTIVES: To evaluate the feasibility and functional urinary and digestive results of nerve sparing techniques in endometriosis surgery. METHODS: A research on the medline/pubmed database using specific keywords (nerve sparing, endometriosis, pelvic nerves) identified 7 publications among about 50 whose purpose was to describe the feasibility, the techniques and the functional results of nerve preservation in this indication. Among them there are: 2 uncontrolled retrospective studies, 3 prospective non-randomized studies, a meta-analysis and a review of the literature...
March 15, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29537745/-preservation-of-sexual-function-a-challenge-for-the-colorectal-surgeon
#17
Émilie Liot, Nicolas Christian Buchs, Jacques Klein, Boris Schiltz, Philippe Morel, Frederic Ris
Patients with rectal cancer have an increased risk of developing sexual disorders. These dysfunctions are caused by the disease itself (negative psychological impact, nerve compression in the pelvis), as well as by the treatments (radiotherapy, chemotherapy and surgery). Most sexual disorders are due to the surgery and can be attributed to injuries of the retroperitoneal nerves. Sexuality assessment of patients before and after treatment, a precise knowledge of the pelvic anatomy by the surgeon, and an appropriate care by specialists (gynaecologists, urologists and sexologists) are essential to reduce the risk of sexual disorders and to minimize their impact on overall quality of life...
March 14, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29537613/characterization-of-a-novel-liquid-fiducial-marker-for-multi-modal-image-guidance-in-stereotactic-body-radiotherapy-of-prostate-cancer
#18
Robin De Roover, Wouter Crijns, Kenneth Poels, Ronald Peeters, Cédric Draulans, Karin Haustermans, Tom Depuydt
PURPOSE: Liquid fiducial markers have shown to be a promising alternative to solid gold markers in terms of imaging artifact reduction, patient comfort and compatibility with different imaging modalities. This study aims to investigate the performance of the novel BioXmark® liquid marker for state-of-the-art multi-modal imaging used in prostate cancer (PCa) radiotherapy, encompassing kV CT/CBCT, multi-parametric MRI and kV X-ray imaging. In addition, automatic detection of the liquid markers in X-ray imaging for prostate motion monitoring during treatment was investigated...
March 14, 2018: Medical Physics
https://www.readbyqxmd.com/read/29532610/utility-of-preoperative-3-d-simulation-of-laparoscopic-lateral-pelvic-lymph-node-dissection-for-advanced-rectal-cancer-surgical-outcomes-of-10-initial-cases
#19
Hisanaga Horie, Koji Koinuma, Homare Ito, Ai Sadatomo, Daishi Naoi, Yoshihiko Kono, Yoshiyuki Inoue, Mitsuaki Morimoto, Makiko Tahara, Alan K Lefor, Naohiro Sata, Takahiro Sasaki, Hideharu Sugimoto
INTRODUCTION: Laparoscopic lateral pelvic lymph node dissection (LPLD) is technically challenging because of the complicated anatomy of the pelvic wall. To overcome this difficulty, we introduced preoperative 3-D simulation. The aim of the study is to investigate the usefulness of preoperative 3-D simulation for the safe conduct of laparoscopic LPLD for rectal cancer. METHODS: After undergoing colonoscopy, patients were brought to the radiology suite where multi-detector row CT was performed...
March 12, 2018: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/29532121/impact-of-subsequent-pregnancies-on-pelvic-floor-functional-anatomy
#20
Hans Peter Dietz, Francesco Scoti, Nishamini Subramaniam, Talia Friedman, Ka Lai Shek
INTRODUCTION AND HYPOTHESIS: Vaginal childbirth clearly has an effect on pelvic floor anatomy, and pregnancy itself also likely plays a role. This study investigated the effects of consecutive pregnancies by comparing pelvic organ support and function in urogynecological patients delivered by cesarean section (CS) only. METHODS: This was a retrospective study using 161 archived data sets of urogynecological patients delivered exclusively by CS presenting with symptoms of pelvic floor dysfunction between 2007 and 2015...
March 12, 2018: International Urogynecology Journal
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