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https://www.readbyqxmd.com/read/28738189/surgical-landmarks-to-locating-the-main-trunk-of-the-facial-nerve-in-parotid-surgery-a-systematic-review
#1
Yisi D Ji, R Bruce Donoff, Zachary S Peacock, Eric R Carlson
PURPOSE: The purpose of this study was to describe distances from commonly used anatomic landmarks to the main trunk of the facial nerve during parotid surgery. MATERIALS AND METHODS: A systematic search of the published literature was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. All studies from January 1, 1990 to January 1, 2017 that measured distances to the main trunk of the facial nerve from common anatomic landmarks were eligible...
June 30, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28736124/implications-of-three-dimensional-modeling-of-the-proximal-femur-for-cephalomedullary-nailing-an-asian-cadaver-study
#2
Chang-Soo Chon, Bokku Kang, Han Sung Kim, Gu-Hee Jung
PURPOSE: To determine the variability in the ideal entry point of cephalomedullary (CM) nail around the greater trochanter (GT) and the consequent conformity with the proximal femur by analyzing three-dimensional (3D) modeling and virtual implantation MATERIALS AND METHODS: A total of 105 cadaveric femurs (50 males and 55 females) underwent continuous 1.0mm slice computed tomography (CT) scans. CT images imported into Mimics(®) software to reconstruct the 3D model of the proximal femur and medullary canal...
July 11, 2017: Injury
https://www.readbyqxmd.com/read/28735845/anterior-and-posterior-bands-of-the-anterior-bundle-in-the-elbow-ulnar-collateral-ligament-ultrasound-anatomy
#3
Masahito Yoshida, Hideyuki Goto, Tetsuya Takenaga, Atsushi Tsuchiya, Katsumasa Sugimoto, Volker Musahl, Freddie Fu, Takanobu Otsuka
BACKGROUND: The anterior oblique bundle (AOL) of the ulnar collateral ligament (UCL) is composed of anterior and posterior bands. This study evaluated the anatomy of the anterior and posterior bands in the AOL of the UCL for their separate visualization with ultrasound (US). METHODS: We dissected 18 cadaveric elbow joints and recorded the direction of each band from the lateral view to determine the proper position for the US transducer. To determine the proper inclination of the transducer, we measured the inclinations of each band at the proximal and distal insertions from the transverse view...
July 20, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28735427/biomechanical-evaluation-of-distal-biceps-tendon-repair-using-tension-slide-technique-and-knotless-fixation-technique
#4
David D Savin, Hristo Piponov, Jonathan N Watson, Ari R Youderian, Farid Amirouche, Giovanni F Solitro, Mark R Hutchinson, Benjamin A Goldberg
BACKGROUND: Acute distal biceps tendon ruptures are uncommon injuries that often affect young active males, typically resulting from an eccentric load on their dominant extremity. The purpose of this study was to compare pullout strength and tendon gapping in the tension slide technique (TST) versus a knotless fixation technique (KFT). METHODS: Two sets of experiments were performed using cadaveric elbow specimens. In the first experiment, eight elbows from different cadavers were tested to compare TST with a standard locking whipstitch with KFT, four elbows in each group, using a standard locking whipstitch...
July 22, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28735412/variability-in-attachment-of-the-coracoacromial-ligament-in-relation-with-its-morphology
#5
Abdulrahman Alraddadi, Abduelmenem Alashkham, Clare Lamb, Roger Soames
PURPOSE: The coracoacromial ligament (CAL) presents with variable morphology and plays a significant role in the development of subacromial impingement syndrome. Sectioning the CAL has been suggested to relieve impingement of the rotator cuff. The aim of the current study was to investigate the CAL attachment in relation with ligament morphology. MATERIALS AND METHODS: The CAL was investigated in 220 cadaveric shoulders from 58 males and 59 females, with a median age of 82 years (range 53-102 years)...
July 22, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28734719/coronoid-reconstruction-using-osteochondral-grafts-a-biomechanical-study
#6
Enrico Bellato, Youngbok Kim, James S Fitzsimmons, Lawrence J Berglund, Alexander W Hooke, Daniel R Bachman, Shawn W O'Driscoll
HYPOTHESIS: The purposes of this study were to test the hypothesis that coronoid deficiency in the setting of posteromedial rotatory instability (PMRI) must be reconstructed to restore articular contact pressures to normal and to compare 3 different osteochondral grafts for this purpose. METHODS: After creation of a anteromedial fracture, six cadaveric elbows were tested under gravity varus stress using a custom-made machine designed to simulate muscle loads and to passively flex the elbow...
July 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734534/elbow-vascularized-composite-allotransplantation-surgical-anatomy-and-technique
#7
Zvi Steinberger, Heng Xu, Nikolas H Kazmers, Stephanie Thibaudeau, Russel G Huffman, L Scott Levin
BACKGROUND: Elbow reconstruction with vascularized composite allotransplantation (VCA) may hold promise in treating end-stage arthritis as no current treatment is both functional and durable. We describe the vascular and gross anatomy of the elbow in the context of VCA procurement and propose a step-by-step surgical technique for human elbow VCA. METHODS: We injected latex in the arterial tree of 16 fresh adult cadaveric upper extremities. We identified and measured arteries and nerves and their branch points relative to the medial epicondyle...
August 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28734168/effect-of-neurodynamic-mobilization-on-fluid-dispersion-in-median-nerve-at-the-level-of-the-carpal-tunnel-a-cadaveric-study
#8
M Boudier-Revéret, K K Gilbert, D R Allégue, M Moussadyk, J M Brismée, P S Sizer, V Feipel, P M Dugailly, S Sobczak
OBJECTIVES: To evaluate the effect of neurodynamics mobilization (NDM) on an artificially induced edema in the median nerve at the level of the carpal tunnel in unembalmed cadavers and to assess whether NDM tensioning techniques (TT) and NDM sliding techniques (SLT) induce similar effects on intraneural fluid dispersion. DESIGN: Fourteen upper extremities of seven unembalmed cadavers were used in this study. A biomimetic solution was injected directly under the epineurium of the median nerve at the level of the proximal transverse carpal ligament...
July 17, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28733099/design-of-anatomical-population-based-and-patient-specific-radial-head-implants
#9
Emily A Lalone, Simon R Deluce, Hannah Shannon, Graham J W King, James A Johnson
PURPOSE: The objective of this study was to characterize the morphology of the radial head and design population-based anatomical and patient-specific radial head implants. METHODS: Computed tomography (CT) images of 50 normal cadaveric upper extremities (34 male, 16 female) were obtained using a 64-slice CT scanner. Surface models were ellipse-fitted and characterized. Using an intersurface distance mapping approach, the surface geometry of the population-based anatomical design (PB-An), 3 distinct patient-specific designs, and an existing axisymmetrical implant (Com-Axi) were compared with the native radial head and the overall surface mismatch was measured...
July 18, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28731927/injectate-spread-following-anterior-sub-costal-and-posterior-approaches-to-the-quadratus-lumborum-block-a-comparative-cadaveric-study
#10
Hesham Elsharkawy, Kariem El-Boghdadly, Sree Kolli, Wael A S Esa, Sean DeGrande, Loran M Soliman, Richard L Drake
BACKGROUND: The dermatomal level of analgesia achieved with quadratus lumborum blocks varies according to the location of injection. The most commonly used approaches are either at the postero-lateral aspect or anterior to the quadratus lumborum muscle. The aim of the study was to determine whether the site of injection of contrast dye around the quadratus lumborum muscle of cadavers affects the extent and mechanism of dye spread. METHODS: Six fresh human cadavers received either a posterior quadratus lumborum block or an anterior sub-costal quadratus lumborum block on each side...
July 20, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28731908/prognostic-factors-in-lung-transplantation-after-hematopoietic-stem-cell-transplantation
#11
Toyofumi F Chen-Yoshikawa, Seiichiro Sugimoto, Takeshi Shiraishi, Masato Minami, Yasushi Matsuda, Masayuki Chida, Sumiko Maeda, Akihiro Aoyama, Yoshinori Okada, Meinoshin Okumura, Akinori Iwasaki, Shinichiro Miyoshi, Takahiro Oto, Hiroshi Date
BACKGROUND: Lung transplantation is the final life-saving option for patients with pulmonary complications after hematopoietic stem cell transplantation (HSCT). Patients undergoing HSCT for hematologic diseases are thought to be high-risk candidates for lung transplantation; therefore, few lung transplants are performed for these patients, and few studies have been reported. This study aimed to describe the characteristics and outcomes of lung transplantation in patients with pulmonary complications after HSCT...
July 21, 2017: Transplantation
https://www.readbyqxmd.com/read/28731802/neurovascular-structures-at-risk-with-curved-retrograde-ttc-fusion-nails
#12
Cesar de Cesar Netto, David Johannesmeyer, Brent Cone, Ibukunoluwa Araoye, Parke William Hudson, Bahman Sahranavard, Michael Johnson, Ashish Shah
BACKGROUND: The purpose of this study was to assess the risk of iatrogenic injury to plantar neurovascular structures of the foot during insertion of a curved retrograde tibiotalocalcaneal (TTC) fusion nail. MATERIAL AND METHODS: Ten below-knee thawed fresh-frozen cadaveric specimens underwent curved retrograde nailing of the ankle. The shortest distance between the nail and the main plantar neurovascular branches and injured structures were recorded during dissection...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28731399/expanding-the-endoscopic-transpterygoid-corridor-to-the-petroclival-region-anatomical-study-and-volumetric-comparative-analysis
#13
Jacob L Freeman, Raghuram Sampath, Steven Craig Quattlebaum, Michael A Casey, Zach A Folzenlogen, Vijay R Ramakrishnan, A Samy Youssef
OBJECTIVE The endoscopic endonasal transmaxillary transpterygoid (TMTP) approach has been the gateway for lateral skull base exposure. Removal of the cartilaginous eustachian tube (ET) and lateral mobilization of the internal carotid artery (ICA) are technically demanding adjunctive steps that are used to access the petroclival region. The gained expansion of the deep working corridor provided by these maneuvers has yet to be quantified. METHODS The TMTP approach with cartilaginous ET removal and ICA mobilization was performed in 5 adult cadaveric heads (10 sides)...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28731271/ultrasound-elastography-for-carpal-tunnel-pressure-measurement-a-cadaveric-validation-study
#14
Kazutoshi Kubo, Boran Zhou, Yu-Shiuan Cheng, Tai-Hua Yang, Bo Qiang, Kai-Nan An, Steven L Moran, Peter C Amadio, Xiaoming Zhang, Chunfeng Zhao
Carpal tunnel pressure is a key factor in the etiology of carpal tunnel syndrome. Numerous approaches have been conducted to measure carpal tunnel pressure. However, most techniques are invasive and take time and effort. We have developed an innovative approach to noninvasively assess the tunnel pressure by using the ultrasound surface wave elastography (USWE) technique. In a previous study it was shown that the shear wave speed in a tendon increased linearly with increasing tunnel pressure enclosed the tendon in a simple tendon model...
July 21, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28728944/ultrasound-guided-thoracic-paravertebral-block-cadaveric-study-in-foxes-vulpes-vulpes
#15
Paolo Monticelli, Ian Jones, Jaime Viscasillas
OBJECTIVE: To describe an ultrasound-guided thoracic paravertebral block in canidae. STUDY DESIGN: Prospective, experimental, cadaveric study. ANIMALS: Twelve thawed fox cadavers. METHODS: A 15 MHz linear transducer was used to visualize the paravertebral space at the level of the fifth thoracic vertebrae. Iohexol (300 mg mL(-1)) at 0.2 mL kg(-1) was injected into the right and left paravertebral spaces under ultrasound guidance using a Tuohy needle...
March 22, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28727778/in-vitro-study-of-accuracy-of-subaxial-cervical-pedicle-screw-insertion-using-calipers-based-on-the-gravity-line
#16
Xiang Yao, Shiqing Liu
OBJECT: There is a high probability of iatrogenic perforation of the vertebral pedicle wall during the application of subaxial cervical pedicle screw (CPS). The goal of this study was to evaluate the accuracy of CPS insertion at C3-C7 in vitro using novel calipers based on the gravity line. METHODS: Nine cadaveric cervical spines underwent computed tomography scanning and preoperative design. A lateral fluoroscopic view was taken to measure the intra-operative sagittal angle by C-arm with hanging cross structured K-wires...
2017: PloS One
https://www.readbyqxmd.com/read/28726265/how-to-havest-the-greatest-length-of-tibialis-posterior-tendon-in-tibialis-posterior-tendon-transfer-a-cadaveric-study
#17
Korakot Thamphongsri, Thos Harnroongroj, Atthakorn Jarusriwanna, Bavornrit Chuckpaiwong
INTRODUCTION: In anterior transfer of the tibialis posterior tendon, the tendon was harvested using two incisions, the first at its attachment point on the navicular bone and second on the medial side of the leg above the medial malleolus. To provide the maximum tendon length, the second incision needs to be as proximal as possible but injury to the muscle origin must be avoided. The purpose of this study is to establish the location of the second incision that yields the greatest tendon length...
July 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28725515/quantitative-anterior-and-posterior-clinoidectomy-analysis-and-mobilization-of-the-oculomotor-nerve-during-surgical-exposure-of-the-basilar-apex-using-frameless-stereotaxis
#18
Aclan Dogan, Justin S Cetas, Gregory J Anderson, Andy Rekito, Johnny B Delashaw
Background  Anterior and posterior clinoidectomies have been proposed to augment exposure of the basilar apex. A sequential quantitative benefit analysis offered by these maneuvers has not been reported. Methods  Fourteen datasets from eight cadaveric specimens were analyzed. A modified orbitozygomatic frontotemporal craniotomy was performed. The extent of proximal control of the basilar artery was determined through the exposed opticocarotid and carotidoculomotor triangles before and after clinoidectomies and mobilization of the third nerve at the porous oculomotarius...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28725508/the-anatomy-of-the-dorsal-capsulo-scapholunate-septum-a-cadaveric-study
#19
Marina Tommasini Carrara de Sambuy, Tanya Michelle Burgess, Adeline Cambon-Binder, Christophe L Mathoulin
Background  Tears of the dorsal radiocarpal capsule at the level of the scapholunate interosseous ligament (SLIL) have recently been described in association with predynamic scapholunate instability. Purpose  The aim of this anatomical study of the dorsal capsulo-scapholunate septum (DCSS) was to examine the connection of the dorsal capsule on the SLIL and dorsal intercarpal ligament (DICL). Methods  Fourteen fresh frozen wrists from seven adult cadavers were dissected through a dorsal approach. Any dorsal attachment of the DICL on the dorsal surface of the SLIL, that is, the DCSS, was identified and measured (height and width)...
August 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28725113/cystic-duct-pressures-after-ligation-with-a-novel-absorbable-device-in-an-ex-vivo-caprine-cholecystectomy-model
#20
Andrea J Sundholm Tepper, Odd V Höglund, Bonnie G Campbell, Chi-Ya Chen, Boel A Fransson
Laparoscopic cholecystectomy is the standard of care in human medicine for gall bladder disease. Although infrequently reported in veterinary literature, laparoscopic cholecystectomy is an option for uncomplicated gall bladder disease in canine patients. Due to the risk of cystic duct ligature slippage or clip dislodgement, we wanted to explore the use of a LigaTie; a novel absorbable medical device modeled after a cable tie. Our object was to describe the use of the LigaTie in a caprine cadaveric study of cholecystectomies as a model for canine patients and demonstrate the leak pressure of the cystic duct compared with cholecystectomies performed with 2 large endoscopic hemoclips...
July 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
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