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cadaver dissection

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https://www.readbyqxmd.com/read/29332305/oblique-thyroarytenoid-muscle-in-humans-an-independent-muscle-or-an-accessory-belly
#1
Shin-Hyo Lee, Ki-Seok Koh, Wu-Chul Song
OBJECTIVES/HYPOTHESIS: This study aimed to determine the prevalence and morphological variations of the oblique thyroarytenoid (TA) muscle in humans. STUDY DESIGN: Cadaveric anatomic dissections. METHODS: One hundred hemilarynges from 50 formalin-embalmed cadavers were dissected to investigate the morphology of muscle fibers of the TA muscle. RESULTS: Thirty-six (36%) hemilarynges were found to have a distinct oblique belly superficial to the TA muscle...
January 14, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29331290/the-use-of-ultrasonography-to-identify-the-intersection-of-the-dorsomedial-cutaneous-nerve-of-the-hallux-and-the-extensor-hallucis-longus-tendon-a-cadaveric-study
#2
Matthew J Zdilla, Kyle D Miller, Jordan V Swearingen, H Wayne Lambert
Terminal branches of the superficial fibular nerve are at risk of iatrogenic damage during foot surgery, including hallux valgus rigidus correction, bunionectomy, cheilectomy, and extensor hallucis longus tendon transfer. One terminal branch, the dorsomedial cutaneous nerve of the hallux, is particularly at risk of injury at its intersection with the extensor hallucis longus tendon. Iatrogenic injuries of the dorsomedial cutaneous nerve of the hallux can result in sensory loss, neuroma formation, and/or debilitating causalgia...
January 11, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29319577/course-review-the-first-international-oldenburg-groningen-fresh-cadaver-flap-course
#3
Trude Beate Wold, Solveig Nergård
The first international fresh cadaver flap course held in Groningen, the Netherlands, was a 2-day course where participants could learn and practice a wide variety of flap dissections on fresh cadavers under close supervision from international specialists in reconstructive surgery. Despite its high cost and long days, this was justified in excellent content, proficient teachers. and a one-to-one teacher-student ratio.
February 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29314501/peripheral-nerve-stimulation-for-chronic-shoulder-pain-a-proof-of-concept-anatomy-study
#4
Michael Gofeld, Anne Agur
OBJECTIVES: Although spinal cord and dorsal root ganglia stimulation may be effective for managing regional pain syndromes, a more targeted approach is perhaps more appealing for discrete anatomical structures. Chronic shoulder pain is a common musculoskeletal problem with significant socioeconomic impact. A peripheral nerve stimulation of the axillary and suprascapular nerves may prove to be effective as a long-term solution for this indication. In anticipation of the future experimental research and clinical utilization, a sound methodology for the lead placement was developed, and its feasibility is tested in a cadaveric study...
January 3, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29312840/relationship-between-the-intersesamoid-ligament-and-sesamoid-bones-in-cadaveric-feet-with-hallux-valgus
#5
Regina C Fiacco, Garen M Ream, Charlotte Wilson, R Shane Tubbs, Marios Loukas, Piotr B Kozlowski, Anthony C DiLandro, Kevin T Jules, Anthony V D'Antoni
There is heterogeneity in the literature regarding the anatomy, exact location, and definition of the intersesamoid ligament (IL). Anatomic knowledge of the IL and its variations are important for surgeons who undertake corrective surgery for hallux abducto valgus (HAV). The IL was dissected in 16 feet from 32 formalin-fixed cadavers (12 females, four males; mean age at death, 76.6 years) to examine its morphology. The length, width, and thickness of its constituent bands were recorded with a digital caliper...
November 3, 2017: Curēus
https://www.readbyqxmd.com/read/29306250/topographic-methods-to-expose-the-exiting-points-of-supratrochlear-supraorbital-and-zygomaticotemporal-nerves
#6
Mesut Sabri Tezer, İsmail Yağmurhan Gilan, Özlem Elvan, Vedia Bennu Özcömert, Mustafa Aktekin
Background/aim: We evaluated the relations of the exiting points of supratrochlear (STN), supraorbital (SON), and zygomaticotemporal (ZTN) nerves with certain landmarks to provide improved anatomic knowledge. Materials and methods: The twenty-eight hemifaces of 5 fresh frozen and 11 embalmed heads (5 female and 11 male cadavers) were dissected. Distance and angular measurements were made between the exiting points of the nerves to the midline, lateral, and medial canthi. Comparisons of side, sex, and cadaver groups were evaluated...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29303001/transbrachioradialis-approach-to-the-radial-tunnel-an-anatomic-study-of-5-potential-compression-sites
#7
Jason R Ummel, John G Coury, Zachary C Lum, Marc A Trzeciak
BACKGROUND: Recent anatomic studies have failed to demonstrate a single utilitarian approach to intraoperative identification and surgical release of all 5 potential sites of posterior interosseous nerve (PIN) compression in the radial tunnel. This study examines if a single incision brachioradialis-splitting approach without the use of additional anatomic windows is capable of adequately exposing the entire length of the radial tunnel, including all 5 sites of PIN compression to allow for adequate release...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29282503/a-morphological-comparison-of-the-extraforaminal-ligament-between-the-cervical-and-thoracic-regions
#8
Pawaree Nonthasaen, Hisayo Nasu, Eiichiro Kagawa, Keiichi Akita
PURPOSE: The current study was conducted to clarify the morphology of the extraforaminal ligament (EFL) at the cervicothoracic junction and to compare the attachment of the EFL and the positional relation between the EFL and the spinal nerves, additionally to clarify the details within the connecting bundles at the cervicothoracic junction. MATERIALS AND METHODS: The EFLs from the 4th cervical to the 4th thoracic vertebrae were dissected in 56 sides of 28 Japanese cadavers (11 males, 17 females)...
December 27, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29278836/the-fibularis-digiti-quinti-tendon-a-cadaveric-study-with-anthropological-and-clinical-considerations
#9
Morgan E Chaney, Tung V Dao, Benjamin S Brechtel, Stephanie J Belovich, Kathy J Siesel, John R Fredieu
In addition to the fibularis longus and brevis muscles, a number of anomalous muscles or tendons can arise from the lateral compartment of the leg. The authors describe a bilateral and robust fibularis digiti quinti (FDQ) tendon present in the foot of a 99-year-old female cadaver, present the incidence of this tendon in a cohort of 26 cadavers dissected by podiatric-medical students for a lower-extremity anatomy course, and discuss the anthropological and clinical significance of the findings. In these specimen, the FDQ tendon arose from the fibularis brevis tendon proximal to the lateral malleolus, but did not separate completely from the fibularis brevis tendon until passing through the inferior fibular retinaculum...
December 5, 2017: Foot
https://www.readbyqxmd.com/read/29277500/distribution-of-the-internal-nasal-branch-of-the-infraorbital-nerve-to-the-nasal-septum-application-to-rhinoplasty
#10
Joe Iwanaga, Koichi Watanabe, Rod J Oskouian, R Shane Tubbs
BACKGROUND: The course of the nerves along the nasal septum has not been clearly studied, and surgical procedures such as rhinoplasty require a more detailed topography of the nerve supply inside the septum. Therefore, we aimed to investigate the distribution of the internal nasal branch of the infraorbital nerve inside the nasal septum and to define the relationship between it and the nasal cartilages. METHODS: Fourteen sides from eight fresh frozen and embalmed Caucasian cadaveric heads were dissected...
December 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29274126/computed-tomographic-contrast-tenography-of-the-digital-flexor-tendon-sheath-of-the-equine-hindlimb
#11
Rachel Agass, Jonathon Dixon, Barny Fraser
Pre-surgical investigation of digital flexor tendon sheath pathology remains challenging with current standard imaging techniques. The aim of this prospective, anatomical, pilot study was to describe the anatomy of the equine hind limb digital flexor tendon sheath using a combination of computed tomography (CT) and computed tomographic contrast tenography in clinically normal cadaver limbs. Ten pairs of hind limbs with no external abnormalities were examined from the level of the tarsometatarsal joint distally...
December 22, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29249540/a-morphometric-and-analytical-cadaver-dissection-study-of-a-tumor-simulation-balloon-model
#12
Baran Bozkurt, Evgenii Belykh, Kaan Yağmurlu, Abhishek Agrawal, Steve W Chang, Michael S Staren, Robert F Spetzler, Joseph M Zabramski, Mark C Preul
We quantified the effects on anatomical cadaver dissection of a balloon-inflation tumor model positioned in the parasellar region and approached through an orbitozygomatic (OZ) craniotomy. A modified supraorbital OZ was performed bilaterally on 5 silicon-injected cadaver heads. Ten predetermined anatomical points assigned using a frameless stereotactic device were used to measure the working area of exposure, degree of surgical freedom, and horizontal and vertical angles of attack to specific target points before and after inflation of a balloon catheter mimicking a parasellar tumor...
December 14, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29249232/an-integrated-pathology-and-ultrasonography-based-simulation-for-training-in-performing-kidney-biopsy%C3%A2
#13
Shree G Sharma, John M Arthur, Stephen M Bonsib, Kevin D Phelan, Manisha Singh, Nithin Karakala, Kelly W Bulloch, Vandana Dua Niyyar, Juan Carlos Q Velez
BACKGROUND: Medical practice trends and limitations in trainees' duty hours have diminished the interest and exposure of nephrology fellows to percutaneous kidney biopsy (PKB). We hypothesized that an integrated nephrology-pathology-led simulation may be an effective educational tool. MATERIALS AND METHODS: A 4-hour PKB simulation workshop (KBSW), led by two ultrasonography (US)-trained nephrologists and two nephropathologists, consisted of 6 stations: 1) diagnostic kidney US with live patients, 2) kidney pathology with plasticine models of embedded torso cross-sections, 3) US-based PKB with mannequin (Blue Phantom™), 4) kidney pathology with dissected cadavers, 5) US-based PKB in lightly-embalmed cadavers, and 6) tissue retrieval adequacy examination by microscope...
December 18, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29241816/triple-bundle-anatomical-reconstruction-using-the-coracoacromial-ligament-and-the-short-head-of-biceps-tendon-to-stabilize-chronic-acromioclavicular-joint-dislocations-a-cadaver-feasibility-study
#14
M Le Hanneur, D Delgrande, T Lafosse, J-D Werthel, P Hardy, B Elhassan
INTRODUCTION: In cases of chronic acromioclavicular joint separation, the biomechanical properties of anatomical reconstructions are closer to the native configuration than the Weaver-Dunn procedure. Consequently, the radiological and clinical outcomes are better. However, an additional incision is needed to harvest the graft, which increases the procedure's morbidity. HYPOTHESIS: Triple-bundle reconstruction can be performed with the coracoacromial ligament (CAL) and the semi conjoined tendon (SCT)...
December 11, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29239925/the-validity-of-training-endoscopic-sinus-and-skull-base-surgery-techniques-on-the-experimental-head-model
#15
Ranko Mladina, Neven Skitarelić, Cemal Cingi, Lei Chen, Nuray Bayar Muluk
OBJECTIVES: The aim of this study was to better understand the usual learning curve in acquiring endonasal endoscopic sinus and skull base surgery (ESSBS) techniques during the novice training on the lamb's head model. METHODS: Ten novices were asked to perform 10 bilateral dissections on the particular lamb's head each. The dissections were uniform, consisted of 10 well-defined steps, beginning from the simple removal of the inferior turbinate, and ending with more complicated procedures like cerebrospinal fluid leak repair, Draf 3 procedure for the frontal sinus and elevation of the nasal septal flap...
December 12, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29238630/hematoma-in-the-bucco-mandibular-space-first-case-report
#16
Joe Iwanaga, Charlotte Wilson, Emre Yilmaz, Cameron K Schmidt, Rod J Oskouian, R Shane Tubbs
Our previous studies based on intraoral dissection of fresh cadavers revealed that the fissure and loose connective tissues deep to the mucosa between the incisivus labii inferioris muscle and buccinator muscle form the entrance of the newly discovered bucco-mandibular space. To support the clinical significance of this space, we report the finding of a hematoma within this space in an adult fresh cadaver. Such a finding lends credence to studying the bucco-mandibular space and might help better understand the spread of some infections in the oral region...
October 12, 2017: Curēus
https://www.readbyqxmd.com/read/29226469/surgical-anatomy-of-the-superficial-temporal-artery-to-prevent-facial-nerve-injury-during-arterial-biopsy
#17
Kang-Jae Shin, Hyun Jin Shin, Shin-Hyo Lee, Ki-Seok Koh, Wu-Chul Song
PURPOSE: To investigate the topographical relationship between the frontal branch of the superficial temporal artery (FSTA) and the temporal branch of the facial nerve (TFN) with the aim of preventing nerve injury during FSTA biopsy. METHODS: Fifty-seven hemifaces of 33 cadavers were dissected. Vertical lines drawn to the lateral orbital margin (LOM) and the superior root of the helix were used as the anterior and posterior reference positions, respectively. Horizontal lines drawn through the supraorbital margin and lateral canthus were used as the superior and inferior reference points, respectively...
December 11, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29224268/-applied-anatomy-study-of-posterior-approach-via-sacrectomy-for-reaching-the-deep-intrapelvic-sacral-plexus
#18
F Li, S F Wang, P C Li, Y H Xue
Objective: To observe the possibility of posterior approach via sacrectomy for reaching intrapelvic sacral plexus and expose the deep intrapelvic origin of sciatic nerve from sacral plexus in order to perform nerve graft. Methods: Five adult cadaver specimens were used in the study with prone position in May 2012. Cut off the gluteus maximus along the origins and lift to the lateral side, the piriformis was lay beneath. The sciatic nerve and the inferior gluteal nerve pierced from the infrapiriformis foramen in the operative field...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29222673/ureteric-entrapment-in-sacroiliac-joint-causing-hydroureter-and-ipsilateral-kidney-hypertrophy
#19
Yurie Otsuru, Chuichi Kondo, Shohei Hara, Hideo Takahashi, Kenjiro Matsuno
A unilateral megaureter was found in an elderly female cadaver during routine dissection. The left proximal ureter, which was thick and convolute, descended and entered into the pelvic cavity, where the distal ureter was attached to the posterior pelvic wall at the inlet level. Removal of connective tissue surrounding the attached region revealed ureteric entrapment in the sacroiliac joint. The ipsilateral kidney, from which the megaureter originated, showed no pelvicalyceal dilatation. In contrast, the left kidney was enlarged, weighing 24% more than the right kidney...
December 8, 2017: Anatomical Science International
https://www.readbyqxmd.com/read/29216701/-a-cadaveric-study-of-a-new-capsulorrhaphy-for-the-surgical-treatment-of-hallux-valgus
#20
S L Orozco-Villaseñor, M Monzó-Planella, X Martín-Oliva, J Vázquez-Escamilla, J J Mayagoitia-Vázquez, J E Frías-Chimal
BACKGROUND: There are many surgical options for the treatment of hallux valgus in combination with capsular repairs for the correction of hallux valgus. MATERIAL AND METHODS: This report corresponds to a descriptive study where a new capsulorrhaphy technique in hallux valgus is proposed. Six dissections were performed on cadavers with hallux valgus deformity using the following surgical technique: medial approach on the first toe longitudinally, dissecting by planes and locating the metatarsophalangeal joint capsule; it was incised longitudinally...
May 2017: Acta Ortopédica Mexicana
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