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https://www.readbyqxmd.com/read/29142364/bone-scan-in-evaluation-of-bone-viability-in-severe-frostbite-of-the-hand
#1
Ishan Garg, Maria J Baladron Zanetti, Ayse T Kendi
A 39-year-old male presented to the emergency department (ED) with frostbite to the fingers of both hands. In the ED, he received warm baths, acetylsalicylic acid, clopidogrel, and heparin. A three-phase bone scintigraphy with technetium-99m-methylene diphosphonate revealed absent radiotracer uptake in distal phalanges of both hands. The patient received acetylsalicylic acid, clopidogrel and wound care for the next 5 days and made an excellent recovery with satisfactory wound healing in both hands. Early rapid rewarming and reperfusion can improve the prognosis significantly and therefore bone scan done within first 1-2 days may give spurious results...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29139158/macro-anatomical-and-morphometric-studies-of-the-hindlimb-of-grasscutter-thryonomys-swinderianus-temminck-1827
#2
K T Onwuama, S A Ojo, J O Hambolu, T Dzenda, F O Zakari, S O Salami
The hindlimb of the grasscutter (Thryonomys swinderianus, Temminck-1827) was studied using 12 adult (≥6 months) rats of either sex with the mean weights of 1.42 ± 0.20 kg and 0.82 ± 0.13 kg for buck (n = 6) and doe (n = 6), respectively (p < .05). Characteristics of the bones were studied by gross observation after their preparation. Measurements of different segments of the hindlimb were also taken, giving a total average length of 31.80 cm. Correlation coefficients between length of bone and weight of rats were positive (p < ...
November 14, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29138122/a-novel-mutation-in-trps1-in-a-patient-with-tricho-rhino-phalangeal-syndrome-type-1-accompanied-by-vesicoureteral-reflux
#3
Naoko Morimoto, Akira Shimizu, Kazunori Ohnishi, Yutaka Shimomura
No abstract text is available yet for this article.
November 14, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/29117842/distraction-arthroplasty-in-an-osteochondral-defect-of-the-middle-finger-in-a-juvenile-patient
#4
In Cheul Choi, Jong Woong Park, Kwang Suk Lee, Dong Min Kim
A 13-year-old female patient visited our hospital with a painful distal interphalangeal joint and deformity on her right middle finger. Initial plain radiographs uncovered ulnar-sided subluxation of the distal interphalangeal joint of the right middle finger, and an osteochondral defect was also noted at the articular surface of the distal and middle phalanges. We decided to attempt distraction arthroplasty with an external fixator. Finally postoperative 12-month follow-up plain radiographs showed complete osteochondral regeneration and phalangeal alignment...
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29117837/extensor-digitorum-communis-edc-anchor-and-interposition-arthroplasty-for-the-metacarpo-phalangeal-joint-mcpj
#5
Ulrich Mennen
Replacing a destroyed MCPJ has always been a challenge. Few operations have resulted in consistent satisfactory results. Also, anchoring a subluxed EDC tendon from the metacarpal head has produced numerous corrective procedures, again indicating the difficulty to keep the extensor tendon aligned. The EDC anchor and interposition arthroplasty procedure addresses both these challenging problems.
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29114928/a-new-substitute-for-formalin-application-to-embalming-cadavers
#6
Yoshinori Haizuka, Miki Nagase, Satoshi Takashino, Yasushi Kobayashi, Yoshihisa Fujikura, George Matsumura
The development of formalin-free fixatives is an urgent issue in gross anatomy because of the health hazard and the tissue-hardening actions of formalin. We recently identified the fixative, antimicrobial, and preservative effects of N-vinyl-2-pyrrolidone (NVP), a precursor of the water-soluble macromolecular polymer polyvinylpyrrolidone, in animal experiments. The aim of the present study is to investigate whether NVP solution can be used as an alternative to formalin in human cadaveric dissection. Twelve donated cadavers were infused with NVP via the femoral and common carotid arteries using a peristaltic pump...
November 7, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29114853/the-evolution-of-the-manus-of-early-theropod-dinosaurs-is-characterized-by-high-inter-and-intraspecific-variation
#7
Daniel E Barta, Sterling J Nesbitt, Mark A Norell
The origin of the avian hand, with its reduced and fused carpals and digits, from the five-fingered hands and complex wrists of early dinosaurs represents one of the major transformations of manus morphology among tetrapods. Much attention has been directed to the later part of this transition, from four- to three-fingered taxa. However, earlier anatomical changes may have influenced these later modifications, possibly paving the way for a later frameshift in digit identities. We investigate the five- to four-fingered transition among early dinosaurs, along with changes in carpus morphology...
November 8, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29109801/the-osteometry-of-equine-third-phalanx-by-the-use-of-three-dimensional-scanning-new-measurement-possibilities
#8
Sławomir Paśko, Małgorzata Dzierzęcka, Halina Purzyc, Anna Charuta, Karolina Barszcz, Bartłomiej Jan Bartyzel, Marcin Komosa
This study consisted in analyzing the asymmetry between bilateral third phalanges (coffin bones) in cold-blood horses based on the angle range of the plantar margin of the bone. The study employed a scanner projecting a hybrid set of images, consisting of sinusoidal stripes preceded by a Gray code sequence. As it turned out, three-dimensional scanning can be used to effectively determine the angle range for a selected portion of the studied bone. This provides broad possibilities for osteometric studies, as it enables the determination of angle distribution in a given fragment...
2017: Scanning
https://www.readbyqxmd.com/read/29103246/dupuytren-s-contracture-current-treatment-methods
#9
REVIEW
Guy Feldman, Nimrod Rozen, Guy Rubin
Dupuytren's disease is a common benign fibromatosis of the palmar and digital fascia. The exact pathophysiology and epidemiology of this condition have not been entirely identified. Pathologic fibrous bands cause a flexion contracture of the metacarpal phalangeal joints and proximal interphalangeal joint. Treatment includes fasciectomy, needle fasciotomy, and enzymatic fasciectomy.
October 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29102967/missed-opportunity-to-diagnose-subungual-melanoma-potential-pitfalls
#10
Louise Dunphy, Rossell Morhij, Yash Verma, Andrew Pay
Subungual melanoma, an uncommon form of acral melanoma that arises within the nail matrix, accounts for 1%-3% of all cutaneous melanoma in Caucasians. As subungual melanoma presents in a more disguised manner than cutaneous lesions, increased vigilance is required. It most commonly presents as a discolouration of the nail, nail splitting or nail-bed bleeding. Black pigmentation of the adjacent nail fold, termed Hutchinson's sign, may be a diagnostic clue. Treatment of subungual melanoma remains surgical with wide local excision and amputation primary modalities...
November 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29101424/a-4-year-old-with-a-non-tender-dorsal-phalangeal-lump
#11
EDITORIAL
Leon Mieczyslaw Sergot, Savvas Andronikou, Simon Thomas
No abstract text is available yet for this article.
November 4, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29100093/de-novo-mutations-in-slc25a24-cause-a-craniosynostosis-syndrome-with-hypertrichosis-progeroid-appearance-and-mitochondrial-dysfunction
#12
Nadja Ehmke, Luitgard Graul-Neumann, Lukasz Smorag, Rainer Koenig, Lara Segebrecht, Pilar Magoulas, Fernando Scaglia, Esra Kilic, Anna F Hennig, Nicolai Adolphs, Namrata Saha, Beatrix Fauler, Vera M Kalscheuer, Friederike Hennig, Janine Altmüller, Christian Netzer, Holger Thiele, Peter Nürnberg, Gökhan Yigit, Marten Jäger, Jochen Hecht, Ulrike Krüger, Thorsten Mielke, Peter M Krawitz, Denise Horn, Markus Schuelke, Stefan Mundlos, Carlos A Bacino, Penelope E Bonnen, Bernd Wollnik, Björn Fischer-Zirnsak, Uwe Kornak
Gorlin-Chaudhry-Moss syndrome (GCMS) is a dysmorphic syndrome characterized by coronal craniosynostosis and severe midface hypoplasia, body and facial hypertrichosis, microphthalmia, short stature, and short distal phalanges. Variable lipoatrophy and cutis laxa are the basis for a progeroid appearance. Using exome and genome sequencing, we identified the recurrent de novo mutations c.650G>A (p.Arg217His) and c.649C>T (p.Arg217Cys) in SLC25A24 in five unrelated girls diagnosed with GCMS. Two of the girls had pronounced neonatal progeroid features and were initially diagnosed with Wiedemann-Rautenstrauch syndrome...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29098388/a-4-year-old-with-a-non-tender-dorsal-phalangeal-lump-diagnosis-and-discussion
#13
EDITORIAL
Leon Mieczyslaw Sergot, Savvas Andronikou, Simon Thomas
No abstract text is available yet for this article.
November 2, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29078727/proximal-phalanx-fracture-management
#14
Tim T Lögters, Hannah H Lee, Sebastian Gehrmann, Joachim Windolf, Robert A Kaufmann
BACKGROUND: The goal of proximal phalangeal fracture management is to allow for fracture healing to occur in acceptable alignment while maintaining gliding motion of the extensor and flexor tendons. METHODS: We reviewed the most current literature on various treatment methods of proximal phalanx fractures, focusing on the indications and outcomes of nonoperative as well as operative interventions. RESULTS: Stable fractures can be successfully treated nonoperatively, whereas unstable injuries benefit from surgery...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29076759/internal-fixation-of-displaced-intra-articular-fractures-of-the-hallux-through-a-dorsomedial-approach-a-technical-tip
#15
Danilo Ryuko Cândido Nishikawa, Fernando Aires Duarte, Cesar de Cesar Netto, Augusto César Monteiro, Rômulo Ballarin Albino, Fabio Corrêa Paiva Fonseca
Phalangeal fractures of the toes represent common injuries of the forefoot. In the hallux, most fractures occur at the distal phalanx and frequently result from a direct crushing type of injury. Intra-articular fractures of the hallux are usually treated nonoperatively, except when the fragments are displaced and the joint is incongruent. Displaced fractures treated nonoperatively can result in degenerative arthritis of the interphalangeal joint, causing pain and range of motion limitation, hindering gait and weightbearing...
October 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29076328/modified-toe-pulp-fillet-flap-coverage-better-wound-healing-and-satisfactory-length-preservation
#16
Sang Oon Baek, Hyo Wan Suh, Jun Yong Lee
Background: Amputation is commonly performed for toe necrosis secondary to peripheral vascular diseases, such as diabetes mellitus. When amputating a necrotic toe, preservation of the bony structure is important for preventing the collapse of adjacent digits into the amputated space. However, in the popular terminal Syme's amputation technique, partial amputation of the distal phalanx could cause increased tension on the wound margin. Herein, we introduce a new way to resect sufficient bony structure while maintaining the normal length, based on a morphological analysis of the toes...
October 27, 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29076148/behavioral-implications-of-ontogenetic-changes-in-intrinsic-hand-and-foot-proportions-in-olive-baboons-papio-anubis
#17
François Druelle, Jesse Young, Gilles Berillon
OBJECTIVES: Relatively long digits are considered to enhance grasping performance in primates. We tested whether growth-related changes in intrinsic hand and foot proportions may have behavioral implications for growing animals, by examining whether ontogenetic changes in digital proportions are related to variation in voluntary grasping behaviors in baboons. MATERIALS AND METHODS: Longitudinal morphological and behavioral data were collected on 6 captive olive baboons (Papio anubis) as they aged from 5 to 22 months...
October 27, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29069094/the-oldest-record-of-alvarezsauridae-dinosauria-theropoda-in-the-northern-hemisphere
#18
Alexander Averianov, Hans-Dieter Sues
Procoelous caudal vertebrae, a carpometacarpus with a hypertrophied metacarpal II, and robust proximal and ungual phalanges of manual digit II of a small theropod dinosaur from the Upper Cretaceous (Turonian) Bissekty Formation at Dzharakuduk, Uzbekistan, show unequivocal synapomorphies of the clade Alvarezsauridae and thus are referred to it. The caudal vertebrae have a unique longitudinal canal within the neural arch. The carpometacarpus, with metacarpal III occupying about one third of the width of the carpometacarpus, shows the most plesiomorphic stage of the evolution of the forelimb among known alvarezsaurids...
2017: PloS One
https://www.readbyqxmd.com/read/29068152/review-and-experimental-evaluation-of-the-embryonic-development-and-evolutionary-history-of-flipper-development-and-hyperphalangy-in-dolphins-cetacea-mammalia
#19
Lisa Noelle Cooper, Karen E Sears, Brooke A Armfield, Bhavneet Kala, Merla Hubler, J G M Thewissen
Cetaceans are the only mammals to have evolved hyperphalangy, an increase in the number of phalanges beyond the mammalian plesiomorphic condition of three phalanges per digit. In this study, cetaceans were used as a novel model to review previous studies of mammalian hyperphalangy and contribute new experimental evidence as to the molecular origins of this phenotype in embryos of the pantropical spotted dolphin (Stenella attenuata). Results show embryos of dolphins, mice, and pigs share similar spatiotemporal patterns of signaling proteins known to shape limbs of mammals (e...
October 25, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/29059846/electromyographic-bridge-a-multi-movement-volitional-control-method-for-functional-electrical-stimulation-prototype-system-design-and-experimental-validation
#20
Yu-Xuan Zhou, Hai-Peng Wang, Xiao-Peng Cao, Zheng-Yang Bi, Yu-Jie Gao, Xiao-Bin Chen, Xiao-Ying Lu, Zhi-Gong Wang
The voluntary participation of the paralyzed patients is crucial for the functional electrical stimulation (FES) therapy. In this study, we developed a strategy called "EMG Bridge" (EMGB) for volitional control of multiple movements using FES technique. The surface electromyography (sEMG) signals of the agonist muscles were transformed to stimulation pulses with various pulse width and frequency to stimulate the target paralyzed muscles using MAV/NSS co-modulation (MNDC) algorithm we proposed recently. Motion pattern classification based on linear discriminant analysis (LDA) was included to recognize the motion status and mapping the sEMG detection channel to the corresponding stimulation channel...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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