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cadaver dissection

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https://www.readbyqxmd.com/read/28214343/high-resolution-ultrasound-visualization-of-the-deep-branch-of-the-ulnar-nerve
#1
Georg Riegler, Doris Lieba-Samal, Peter C Brugger, Christopher Pivec, Hannes Platzgummer, Martin Vierhapper, Gabriela Muschitz, Suren Jengojan, Gerd Bodner
INTRODUCTION: The value of imaging the deep branch of the ulnar nerve (DBUN) over its entire course has not been clarified. Therefore, this study aimed to evaluate the feasibility of visualizing the DBUN from its origin to the most distal point. METHODS: We performed high-resolution ultrasound (HRUS) with high-frequency probes (18-22MhZ), HRUS-guided ink-marking, and consecutive dissection in 8 fresh cadaver hands. In both hands of 10 healthy volunteers (n=20), the cross-sectional area (CSA) was measured at 2 different locations (R1+R2)...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28213934/transverse-process-anatomy-as-a-guide-to-vertebral-artery-exposure-during-anterior-cervical-spine-approach-a-cadaveric-study
#2
Ali Nourbakhsh, Jinping Yang, Howard McMahan, Kim Garges
INTRODUCTION: Safe exposure of the vertebral artery (VA) is needed during resection of tumors close to the artery and during repair of lacerations. We defined the anatomy of the anterior root of each transverse process (TP) from C3 to C6 for identification and exposure of the VA during the anterior approach. MATERIALS AND METHODS: We examined the anatomy of the TP and assessed two approaches for safe identification of the VA, lateral to medial and medial to lateral dissection of the TP, in 20 cadavers...
February 18, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28210274/bilateral-tensor-fasciae-suralis-muscles-in-a-cadaver-with-unilateral-accessory-flexor-digitorum-longus-muscle
#3
Logan S W Bale, Sean O Herrin
Muscle variants are routinely encountered in the dissection laboratory and in clinical practice and therefore anatomists and clinicians need to be aware of their existence. Here we describe two different accessory muscles identified while performing educational dissection of a 51-year-old male cadaver. Tensor fasciae suralis, a rare muscle variant, was identified bilaterally and accessory flexor digitorum longus, a more common muscle variant, was present unilaterally. Tensor fasciae suralis and accessory flexor digitorum longus are clinically relevant muscle variants...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28209340/ultrasound-guided-injection-for-de-quervain-s-disease-accuracy-and-its-influenceable-anatomical-variances-in-first-extensor-compartment-of-fresh-cadaver-wrists
#4
Jong Woo Kang, Jong Woong Park, Soon Hyuck Lee, Jong Hoon Park, Seung Bum Han, Si Young Park, Woong Kyo Jeong
BACKGROUND: This study was designed to evaluate the accuracy of ultrasound-guided injection targeting EPB tendon sheath and influenceable anatomical variances to the accuracy in the first extensor compartment of fresh cadaver wrists. METHODS: Thirty wrists of 15 cadavers were used. The wrists were divided into right-sided wrists (control group) and left-sided wrists (group A) to compare the accuracy of the manual injection technique (control group) and ultrasound-guided injection technique (group A) targeting EPB tendon sheath...
February 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28208840/morphological-variations-of-the-thyroid-gland-among-the-people-of-upper-assam-region-of-northeast-india-a-cadaveric-study
#5
Anjan Jyoti Rajkonwar, Giriraj Kusre
INTRODUCTION: The morphological variations of the thyroid gland have been reported from different parts of the world. The variations are due to remnant or non-specific development of the parts of the thyroid gland. Surgical operation of the thyroid gland has been the treatment of choice in various thyroid pathologies. Prior knowledge of the morphological variation is important to ensure better results from these surgical operations. AIM: To study the prevalence of morphological variations seen in the thyroid glands in the upper Assam region of Northeast India...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207465/two-rare-variants-of-left-vertebral-artery
#6
Rajani Singh
Though the variations of vertebral artery are clinically asymptomatic yet abnormalities are of diagnostic importance either prior to vascular surgery in the neck region or in patients of intravascular diseases such as arteriovenous malformations or cerebral aneurysms. Therefore, the aim of the study is to bring out 2 variations in the configuration of vertebral artery and their clinical implication. During dissection of thorax of 2 female cadavers, 2 different variants of configurations of left vertebral arteries were observed...
February 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28197028/gross-morphological-study-of-the-renal-pelvicalyceal-patterns-in-human-cadaveric-kidneys
#7
T S R Anjana, Elangovan Muthian, Sivakami Thiagarajan, Sumathi Shanmugam
INTRODUCTION: The knowledge of detailed calyceal anatomy is essential for performing urologic procedures such as percutaneous nephrolithotomy, percutaneous nephrostomy, flexible ureterorenoscopy, endopyelotomy, and retrograde renal surgery. This study was performed to analyze the various patterns of pelvicalyceal system in the South Indian population, and compare these with previously published studies in different populations. METHODS: The study was conducted in 100 kidney specimens...
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28195898/ultrasound-guided-glossopharyngeal-nerve-block-a-cadaver-and-a-volunteer-sonoanatomy-study
#8
Josip Ažman, Tatjana Stopar Pintaric, Erika Cvetko, Kamen Vlassakov
BACKGROUND AND OBJECTIVES: Glossopharyngeal nerve (GPN) blocks are usually performed by topical, intraoral, or peristyloid approaches, which carry significant complication risks due to the proximity of important neurovascular structures. This study presents a proof of concept for a new ultrasound (US)-guided technique, which would block the GPN distally, in the parapharyngeal space, away from the immediate vicinity of high-risk collateral structures. METHODS: Five cadaver heads were dissected, and the location of the GPN was explored bilaterally...
March 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28188484/estimation-of-attachment-regions-of-hip-muscles-in-ct-image-using-muscle-attachment-probabilistic-atlas-constructed-from-measurements-in-eight-cadavers
#9
Norio Fukuda, Yoshito Otake, Masaki Takao, Futoshi Yokota, Takeshi Ogawa, Keisuke Uemura, Ryota Nakaya, Kazunori Tamura, Robert B Grupp, Amirhossein Farvardin, Mehran Armand, Nobuhiko Sugano, Yoshinobu Sato
PURPOSE: Patient-specific musculoskeletal biomechanical simulation is useful in preoperative surgical planning and postoperative assessment in orthopedic surgery and rehabilitation medicine. A difficulty in application of the patient-specific musculoskeletal modeling comes from the fact that the muscle attachment regions are typically invisible in CT and MRI. Our purpose is to develop a method for estimating patient-specific muscle attachment regions from 3D medical images and to validate with cadaver experiments...
February 10, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28187067/the-morphology-and-possible-clinical-significance-of-the-radiating-extraforaminal-ligaments-at-the-l1-l5-levels
#10
Enyi Zhong, Qinghao Zhao, Benchao Shi, Xuefeng Zheng, Qinghui Zhao, Jinchuan Tan, Zihai Ding, Wenhua Huang
STUDY DESIGN: A dissection-based study of 10 fresh-frozen human cadavers. OBJECTIVE: The objective of this study was to identify and describe the radiating extraforaminal ligaments in the exit regions of the L1-L5 intervertebral foramina and to research their possible clinical significance. SUMMARY OF BACKGROUND DATA: The transforaminal ligaments at the L1-L5 intervertebral foramina have been well studied. However, detailed descriptions of the radiating extraforaminal ligaments at L1-L5 are lacking...
February 9, 2017: Spine
https://www.readbyqxmd.com/read/28185265/teres-major-muscle-insertion-footprint
#11
Malte Dancker, Simon Lambert, Erich Brenner
Teres major muscle (TM) and latissimus dorsi muscle (LD) are frequently used in muscle transfers around the shoulder girdle. Some authors have suggested harvesting techniques in which the muscle is detached in continuity with a bone segment. Information on the bony attachment footprint of these muscles is lacking. The purpose of this study was to investigate the region of attachment of the TM to facilitate safe and complete harvesting with a bone segment where it is indicated, and to determine the relationship of the TM footprint with that of the LD...
February 9, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28177991/variations-in-the-vascular-anatomy-of-the-right-colon-and-implications-for-right-sided-colon-surgery
#12
Mehmet Ayhan Kuzu, Erkin İsmail, Safa Çelik, Muhammed Feyzi Şahin, Mehmet Ali Güner, Werner Hohenberger, Halil İbrahim Açar
BACKGROUND: Knowledge of the normal pattern and variations of the blood supply of the right colon is crucial for better outcomes after colon surgery. OBJECTIVE: The purpose of this study was to describe the precise vascular anatomy of the right colon according to surgical perspective. DESIGN: Adult fresh cadavers were dissected between January 2013 and October 2015, focusing on the venous and arterial anatomy of the right side of the colon...
March 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28176030/endoscopic-approach-to-the-upper-cervical-spine-and-clivus-an-anatomical-study-of-the-upper-limits-of-the-transoral-corridor
#13
Emanuele La Corte, Philipp R Aldana
BACKGROUND: Recent advances in endoscopic techniques have allowed minimally invasive approaches to the cranio-vertebral junction (CVJ) through the oropharynx (ETA) in addition to the transnasal approach (EEA). These minimally invasive endoscopic techniques allow for increased surgical exposure using no visible incisions, with a potential less morbidity. The ability to know preoperatively the limit of the ETA is vital for the surgical planning in order to better address CVJ pathology. The aim of the present study is to determine the anatomical limits of endoscopic dissection of the skull base and upper cervical spine through the transoral corridor and the superior limit reached by adopting this approach...
February 7, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28167249/how-are-adjacent-spinal-levels-affected-by-vertebral-fracture-and-by-vertebroplasty-a-biomechanical-study-on-cadaveric-spines
#14
Jin Luo, Deborah J Annesley-Williams, Michael A Adams, Patricia Dolan
BACKGROUND CONTEXT: Spinal injuries and surgery may have important effects at neighbouring spinal levels, but previous investigations of adjacent-level biomechanics have produced conflicting results. We use 'stress profilometry' and non-contact strain measurements to investigate thoroughly this long-standing problem. PURPOSE: To determine how vertebral fracture and vertebroplasty affect compressive load-sharing and vertebral deformations at adjacent spinal levels...
February 3, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28163208/anatomical-variations-of-the-renal-arteries-cadaveric-and-radiologic-study-review-of-the-literature-and-proposal-of-a-new-classification-of-clinical-interest
#15
Clara Cases, Laura García-Zoghby, Paula Manzorro, Francisco J Valderrama-Canales, Miguel Muñoz, María Vidal, Clara Simón, Jose R Sanudo, Stephen McHanwell, Juan Arrazola
PURPOSE: To analyse the variations of the renal arteries in two samples, cadaveric and computerized tomographic (CT) images, as well as to propose a simple classification of such variations based on the obtained results and an extensive review of the literature on the topic. MATERIAL AND METHODS: Sixty human dissected kidneys and their vessels, and 583 abdominal CT were studied. RESULTS: A total of 86 arteries were described in the cadaveric sample, whereas 1223 were analysed in the radiological one...
February 3, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/28157619/effects-of-hip-joint-transverse-plane-range-of-motion-with-a-modeled-effusion-and-capsular-tear-a-cadaveric-study
#16
Casey Hebert, Mark P Smyth, Erik Woodard, Collin C Bills, Marc J Mihalko, William M Mihalko
BACKGROUND: Multiple factors contribute to range of motion of the hip joint in the transverse plane: bony anatomy, hip capsule, corresponding ligaments, articular labrum, ligamentum teres, and negative intra-articular pressure. We hypothesized that violation of the negative pressure of the hip and simulation of an effusion would increase range of motion in the transverse plane in a cadaver model. METHODS: Ten hip specimens were obtained and dissected with the femur and iliac wing mounted in a custom joint-testing rig in neutral position...
January 21, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28155047/transoral-robotic-thyroidectomy-a-preclinical-feasibility-study-using-the-da-vinci-xi-platform
#17
Jonathon O Russell, Salem I Noureldine, Mai G Al Khadem, Hamad A Chaudhary, Andrew T Day, Hoon Yub Kim, Ralph P Tufano, Jeremy D Richmon
Transoral thyroid surgery allows the surgeon to conceal incisions within the oral cavity without significantly increasing the amount of required dissection. TORT provides an ideal scarless, midline access to the thyroid gland and bilateral central neck compartments. This approach, however, presents multiple technical challenges. Herein, we present our experience using the latest generation robotic surgical system to accomplish transoral robotic thyroidectomy (TORT). In two human cadavers, the da Vinci Xi surgical system (Intuitive Surgical, Sunnyvale, CA, USA) was used to complete TORT...
February 2, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28150276/concomitant-fenestration-and-phlebectasia-of-the-right-internal-jugular-vein-an-unique-finding-in-anatomical-dissection
#18
Erika Cvetko, Marija Meznarič
The internal jugular vein (IJV) is an important vascular structure for oncologists and radiologists and is also a frequently used central venous route. The variations in the pattern of its course, and knowledge of its variations, are important. During the anatomical dissection of a 70-year-old male cadaver, fenestration involving a short segment (2.5 cm) of the right IJV in the superior part of the carotid triangle and a large dilatation (phlebectasia) of the IJV, involving its nonfenestrated segment were found - a case that has not previously been reported...
February 2, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28150273/variation-in-morphology-and-branching-pattern-of-superior-mesenteric-artery-a-case-report
#19
Khalid M Taha, Mohammed H Karrar Alsharif, Abubaker Y Elamin
The anatomical variations of superior mesenteric artery branches are common. In this study we reported an extra ordinary morphology and branching of superior mesenteric artery, during our routine dissection of a 38-year-old Sudanese male cadaver, where the superior mesenteric artery forms an arch over the confluence of inferior vena cava and left renal vein. Other variations observed were: 1) The superior mesenteric artery shares the same origin of celiac trunk; 2) The unusual origin of right hepatic artery...
February 2, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28146021/spinal-tissue-loading-created-by-different-methods-of-spinal-manipulative-therapy-smt-application
#20
Martha Funabashi, François Nougarou, Martin Descarreaux, Narasimha Prasad, Gregory N Kawchuk
STUDY DESIGN: Comparative study using robotic replication of SMT vertebral kinematics together with serial dissection. OBJECTIVE: To quantify loads created in cadaveric spinal tissues arising from three different forms of SMT application. SUMMARY OF BACKGROUND DATA: There exist many distinct methods by which to apply spinal manipulative therapy (SMT). It is not known presently if different forms of SMT application have different effects on spinal tissues...
January 31, 2017: Spine
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