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surgical and radiological anatomy

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https://www.readbyqxmd.com/read/27911674/cross-sectional-imaging-anatomy-and-pathologic-conditions-affecting-thoracic-nerves
#1
Kristopher W Cummings, Sreevathsan Sridhar, Matthew S Parsons, Cylen Javidan-Nejad, Sanjeev Bhalla
While in many cases they are not directly visualized, awareness of the thoracic nerves and their courses at cross-sectional imaging is important for radiologists. An understanding of the normal function of each nerve is important, as many patients present with neurologic signs and symptoms that can be used to reinforce search patterns for disease and detection of supportive radiologic abnormalities. In the case of primary neoplasms, understanding the expected presence of a nerve in the location of a mass can enhance and improve the accuracy of differential diagnoses...
December 2, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27890212/-complete-intra-articular-distal-radius-fractures-in-young-active-patients
#2
A-M Gay, P Samson, R Legré
Management of complex intra-articular fractures of the distal radius in young active patients must aim to restore normal anatomy. For optimal planning of the surgical procedure, a thorough analysis of the fracture with appropriate radiological exams and diagnosis of frequently associated lesions are necessary. Surgical management involves use of various types of internal or external fixation. Routine use of standardized analysis tools for these fractures along with prospective follow-up should allow us to define guidelines for each situation in the near future...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27837264/study-of-the-mandibular-incisive-canal-anatomy-using-cone-beam-computed-tomography
#3
Sergey Lvovich Kabak, Natallia Victorovna Zhuravleva, Yuliya Michailovna Melnichenko, Nina Alexandrovna Savrasova
PURPOSE: The aim of this study was to identify the range of individual variability in dimensions and topography of the mandibular incisive canal (MIC) in vivo. METHODS: One hundred cone beam computed tomography (CBCT) scans of patients from dental outpatient hospitals of Minsk, Belarus were performed on Galileos GAX5 using standard exposure and patient positioning protocol. Reformatted panoramic and sagittal CBCT images were analyzed. RESULTS: The MIC was visualized in 92% of CBCT images...
November 11, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27831994/pseudarthrosis-repair-using-autologous-cultured-osteoblasts-in-complex-type-1-neurofibromatosis-spinal-deformity-a-case-report-and-review-of-the-literature
#4
Young-Hoon Kim, Genriech N Reoyan, Kee-Yong Ha, Chul-Kyu Kim
STUDY DESIGN: A case report and literature review. OBJECTIVE: To report a late dislocation of the vertebra caused by progressive dural ectasia combined with type-1 neurofibromatosis (NF-1) and the clinical results of pseudarthrosis repairs using autologous cultured osteoblasts. SUMMARY OF BACKGROUND DATA: NF-1 is a well-known genetic disorder that is commonly characterized by spinal deformities including kyphoscoliosis. Late dislocation of the vertebra resulting from progressive dural ectasia after surgical correction of NF-1 scoliosis is a very rare occurrence, and pseudarthrosis frequently develops after surgical intervention for this complex spinal deformity...
November 15, 2016: Spine
https://www.readbyqxmd.com/read/27800039/a-prospective-comparative-study-of-high-resolution-ultrasound-and-mri-in-the-diagnosis-of-rotator-cuff-tears-in-a-tertiary-hospital-of-north-india
#5
Narvir Singh Chauhan, Ajay Ahluwalia, Yash Paul Sharma, Lokesh Thakur
BACKGROUND: To evaluate the accuracy of high resolution ultrasound (USG) and MRI in the diagnosis of rotator cuff tears (RCT) and to determine if high resolution USG compares favorably in sensitivity and specificity to MRI in the diagnosis of rotator cuff injury. MATERIAL/METHODS: In this prospective comparative study, 40 patients with clinically suspected rotator cuff tears underwent both ultrasound and MRI of the shoulder. Out of these 40 patients, 31 patients who had positive findings for rotator cuff tears on ultrasound and/or MRI were finally included in the study while the remaining 9 patients with negative or unrelated findings were excluded...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27776006/arthroscopic-assisted-acromioclavicular-and-coracoclavicular-ligaments-reconstruction-for-chronic-acromioclavicular-dislocations-surgical-technique
#6
Achilleas Boutsiadis, Laurent Baverel, Hubert Lenoir, Philippe Delsol, Johannes Barth
Chronic acromioclavicular (AC) instability is a rare posttraumatic shoulder condition that can lead to undesirable symptoms like persistent pain, muscle fatigue, loss of strength, or even scapular dyskinesis. It is well known that in these cases the superior functional results depend on the restoration of the anatomy and stability of the AC joint in both vertical and horizontal planes. Considering the ligaments degeneration and atrophy in chronic AC joint dislocations, we present an arthroscopic-assisted reconstruction of both the coracoclavicular and AC ligaments using autograft augmentation...
December 2016: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/27752837/multi-modal-imaging-of-the-subscapularis-muscle
#7
REVIEW
Mona Alilet, Julien Behr, Jean-Philippe Nueffer, Benoit Barbier-Brion, Sébastien Aubry
: The subscapularis (SSC) muscle is the most powerful of the rotator cuff muscles, and plays an important role in shoulder motion and stabilization. SSC tendon tear is quite uncommon, compared to the supraspinatus (SSP) tendon, and, most of the time, part of a large rupture of the rotator cuff. Various complementary imaging techniques can be used to obtain an accurate diagnosis of SSC tendon lesions, as well as their extension and muscular impact. Pre-operative diagnosis by imaging is a key issue, since a lesion of the SSC tendon impacts on treatment, surgical approach, and post-operative functional prognosis of rotator cuff injuries...
December 2016: Insights Into Imaging
https://www.readbyqxmd.com/read/27726748/ct-and-mr-imaging-of-the-postoperative-ankle-and-foot
#8
Gary M LiMarzi, Kurt F Scherer, Michael L Richardson, David R Warden, Christopher W Wasyliw, Jack A Porrino, Christopher R Pettis, Gideon Lewis, Christopher C Mason, Laura W Bancroft
A variety of surgical procedures exist for repair of both traumatic and degenerative osseous and soft-tissue pathologic conditions involving the foot and ankle. It is necessary for the radiologist to be familiar with these surgical procedures, so as to assess structural integrity, evaluate for complicating features, and avoid diagnostic pitfalls. Adequate interpretation of postoperative changes often requires access to surgical documentation to evaluate not only the surgery itself but the expected timeline for resolution of normal postoperative changes versus progressive disease...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27726742/postoperative-shoulder-imaging-rotator-cuff-labrum-and-biceps-tendon
#9
Jennifer L Pierce, Nicholas C Nacey, Stephen Jones, Davis Rierson, Brian Etier, Stephen Brockmeier, Mark W Anderson
Imaging interpretation of the postoperative shoulder is a challenging and difficult task for both the radiologist and the orthopedic surgeon. The increasing number of shoulder rotator cuff, labrum, and biceps tendon repairs performed in the United States also makes this task a frequent occurrence. Whether treatment is surgical or conservative, imaging plays a crucial role in patient care. Many imaging findings can be used to predict prognosis and functional outcomes, ultimately affecting treatment. In addition, evolving surgical techniques alter the normal anatomy and imaging appearance of the shoulder such that accepted findings proved to be pathologic in the preoperative setting cannot be as readily described as pathologic after surgery...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27697471/utility-of-retrograde-ureterocelogram-in-management-of-complex-ureterocele
#10
M K Arevalo, J C Prieto, N Cost, G Nuss, B J Brown, L A Baker
INTRODUCTION: Symptomatic pediatric ureterocele has diverse manifestations, making evidence-based management impractical. Thus, detailed visualization of ureterocele anatomy prior to first surgical incision is invaluable. Retrograde ureterocelogram (RUC) is a simple, underutilized radiologic technique that can be performed during cystoscopy. This study sought to determine whether RUC changes surgical management by more accurately depicting the complex ureteral and ureterocele anatomy, compared with renal ultrasound (US) and voiding cystourethrography (VCUG)...
September 17, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27692569/anatomic-features-of-independent-right-posterior-portal-vein-variants-implications-for-left-hepatic-trisectionectomy
#11
Nobuyuki Watanabe, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino
BACKGROUND: No authors have reported on the anatomic features of the independent right posterior portal vein variant and its relevance to left hepatic trisectionectomy. The purpose of this study was to review vasculobiliary systems according to portal vein anatomy, to clarify the anatomic features of the right posterior portal vein variant, and to discuss its operative implications for left hepatic trisectionectomy. METHODS: In a radiologic study, the 3-dimensional anatomy of the portal vein, hepatic artery, and bile duct were studied in 200 patients who underwent computed tomography...
September 27, 2016: Surgery
https://www.readbyqxmd.com/read/27633658/abdominal-intra-compartment-syndrome-a-non-hydraulic-model-of-abdominal-compartment-syndrome-due-to-post-hepatectomy-hemorrhage-in-a-man-with-a-localized-frozen-abdomen-due-to-extensive-adhesions-a-case-report
#12
Alexsander K Bressan, Andrew W Kirkpatrick, Chad G Ball
BACKGROUND: Postoperative hemorrhage is a significant cause of morbidity and mortality following liver resection. It typically presents early within the postoperative period, and conservative management is possible in the majority of cases. We present a case of late post-hepatectomy hemorrhage associated with overt abdominal compartment syndrome resulting from a localized functional compartment within the abdomen. CASE PRESENTATION: A 68-year-old white man was readmitted with sudden onset of upper abdominal pain, vomiting, and hemodynamic instability 8 days after an uneventful hepatic resection for metachronous colon cancer metastasis...
September 15, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27609450/aneurysm-surgery-with-pre-operative-3d-planning-in-a-virtual-reality-environment-technique-and-outcome-analysis
#13
Ralf A Kockro, Tim Killeen, Ali Ayyad, Martin Glaser, Axel Stadie, Robert Reisch, Alf Giese, Eike Schwandt
OBJECTIVE: Aneurysm surgery demands precise spatial understanding of the vascular anatomy and its surroundings. We report on a decade of experience planning clipping procedures pre-operatively in a virtual reality (VR) workstation and present outcomes with respect to mortality, morbidity and aneurysm occlusion rate. METHODS: Between 2006 and 2015, the clipping of 115 intracranial aneurysms in 105 patients was pre-operatively planned with the Dextroscope, a stereoscopic, patient-specific VR environment...
September 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27607121/arterio-venous-malformations-of-the-nose-combined-approach-for-a-successful-strategy
#14
Daria Almesberger, Francesco Manna, Gianni Franco Guarneri, Andrea Marchesi, Pier Camillo Parodi
BACKGROUND AND PURPOSE: The purpose of the present study is to evaluate the vascular malformations of the head and neck. They are uncommon lesions, but some areas have a significant potential for fatality, due to their massive bleeding. The vascular anatomy of the nose carries a high recurrence rate, due to the unique characteristic of the nose, especially if deep vascular connection is present. METHODS: The present article describes 2 patients of nasal dorsum arteriovenous malformations, both using a combined procedure: preoperative selective embolization, en-bloc tumor resection, and reconstruction with a forehead flap...
September 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27553389/monosegmental-vs-bisegmental-pedicle-fixation-for-the-treatment-of-thoracolumbar-spine-fractures
#15
Giovanni Andrea La Maida, Francesco Luceri, Marcello Ferraro, Carlo Ruosi, Giuseppe Vincenzo Mineo, Bernardo Misaggi
INTRODUCTION: The anatomy and biomechanics of the thoracolumbar spine place these segments at high risk of trauma injuries. Treatment options are either conservative or surgical, and there is a lack of consensus about the right indications. International scientific publications agree only on basic surgical principles: vertebral stability, deformity correction, protection of neurological structures and fast functional recovery. The most commonly used approach is the posterior approach, which allows the best management of most vertebral fracture patterns...
October 2016: Injury
https://www.readbyqxmd.com/read/27551340/3t-magnetic-resonance-neurography-of-pudendal-nerve-with-cadaveric-dissection-correlation
#16
Avneesh Chhabra, Courtney A McKenna, Vibhor Wadhwa, Gaurav K Thawait, John A Carrino, Gary P Lees, A Lee Dellon
AIM: To evaluate the pudendal nerve segments that could be identified on magnetic resonance neurography (MRN) before and after surgical marking of different nerve segments. METHODS: The hypothesis for this study was that pudendal nerve and its branches would be more easily seen after the surgical nerve marking. Institutional board approval was obtained. One male and one female cadaver pelvis were obtained from the anatomy board and were scanned using 3 Tesla MRI scanner using MR neurography sequences...
July 28, 2016: World Journal of Radiology
https://www.readbyqxmd.com/read/27510391/ten-triangles-around-cavernous-sinus-for-surgical-approach-described-by-schematic-diagram-and-three-dimensional-models-with-the-sectioned-images
#17
Beom Sun Chung, Young Hwan Ahn, Jin Seo Park
For the surgical approach to lesions around the cavernous sinus (CS), triangular spaces around CS have been devised. However, educational materials for learning the triangles were insufficient. The purpose of this study is to present educational materials about the triangles, consisting of a schematic diagram and 3-dimensional (3D) models with sectioned images. To achieve the purposes, other studies were analyzed to establish new definitions and names of the triangular spaces. Learning materials including schematic diagrams and 3D models with cadaver's sectioned images were manufactured...
September 2016: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27494783/conflicting-calculations-of-pelvic-incidence-and-pelvic-tilt-secondary-to-transitional-lumbosacral-anatomy-lumbarization-of-s-1-case-report
#18
Charles H Crawford, Steven D Glassman, Jeffrey L Gum, Leah Y Carreon
Advancements in the understanding of adult spinal deformity have led to a greater awareness of the role of the pelvis in maintaining sagittal balance and alignment. Pelvic incidence has emerged as a key radiographic measure and should closely match lumbar lordosis. As proper measurement of the pelvic incidence requires accurate identification of the S-1 endplate, lumbosacral transitional anatomy may lead to errors. The purpose of this study is to demonstrate how lumbosacral transitional anatomy may lead to errors in the measurement of pelvic parameters...
August 5, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27493591/accessory-inferior-sulci-of-the-liver-in-an-afro-caribbean-population
#19
Shamir O Cawich, Michael T Gardner, Ramnanand Shetty, Neil W Pearce, Vijay Naraynsingh
INTRODUCTION: There have been no previous reports on the anatomic variations that exist on inferior surface of the liver in Caribbean populations. This information is important to optimize radiology and hepatobiliary surgical services in the region. METHODS: Two investigators independently observed 69 cadaveric dissections over five years and described the variations in surface anatomy. RESULTS: In this population 88% of cadaveric livers had conventional hepatic surface anatomy...
June 2016: International Journal of Biomedical Science: IJBS
https://www.readbyqxmd.com/read/27471875/coracoid-process-the-lighthouse-of-the-shoulder
#20
Hussan Mohammed, Matthew R Skalski, Dakshesh B Patel, Anderanik Tomasian, Aaron J Schein, Eric A White, George F Rick Hatch, George R Matcuk
The coracoid process is a hook-shaped bone structure projecting anterolaterally from the superior aspect of the scapular neck. Surgeons often refer to the coracoid process as the "lighthouse of the shoulder" given its proximity to major neurovascular structures such as the brachial plexus and the axillary artery and vein, its role in guiding surgical approaches, and its utility as a landmark for other important structures in the shoulder. The coracoid also serves as a critical anchor for many tendinous and ligamentous attachments...
July 29, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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