keyword
MENU ▼
Read by QxMD icon Read
search

phalanx

keyword
https://www.readbyqxmd.com/read/29338034/clonal-growth-strategy-diversity-and-structure-a-spatiotemporal-response-to-sedimentation-in-tropical-cyperus-papyrus-swamps
#1
Addisie Geremew, Iris Stiers, Tim Sierens, Alemayehu Kefalew, Ludwig Triest
Land degradation and soil erosion in the upper catchments of tropical lakes fringed by papyrus vegetation can result in a sediment load gradient from land to lakeward. Understanding the dynamics of clonal modules (ramets and genets) and growth strategies of plants on such a gradient in both space and time is critical for exploring a species adaptation and processes regulating population structure and differentiation. We assessed the spatial and temporal dynamics in clonal growth, diversity, and structure of an emergent macrophyte, Cyperus papyrus (papyrus), in response to two contrasting sedimentation regimes by combining morphological traits and genotype data using 20 microsatellite markers...
2018: PloS One
https://www.readbyqxmd.com/read/29320922/co-emergence-of-specialized-endothelial-cells-from-embryonic-stem-cells
#2
Nicole Madfis, Zhiqiang Lin, Ashwath Kumar, Simone A Douglas, Manu O Platt, Yuhong Fan, Kara E McCloskey
A well-formed and robust vasculature is critical to the health of most organ systems in the body. However, the endothelial cells (ECs) forming the vasculature can exhibit a number of distinct functional subphenotypes like arterial or venous ECs, as well as angiogenic tip and stalk ECs. Here, we investigate the in vitro differentiation of EC subphenotypes from embryonic stem cells (ESCs) using. Using our staged induction methods and chemically-defined mediums, highly angiogenic EC subpopulations, as well as, less proliferative and less migratory EC subpopulations are derived...
January 10, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29319352/dual-antegrade-intramedullary-headless-screw-fixation-for-treatment-of-unstable-proximal-phalanx-fractures
#3
Michael P Gaspar, Shiv D Gandhi, Randall W Culp, Patrick M Kane
BACKGROUND: Although intramedullary headless screw (IMHS) fixation is a promising minimally invasive surgical treatment option for unstable proximal phalanx fractures, a single IMHS may provide inadequate fixation for certain fracture patterns. The purpose of this study was to evaluate the short-term clinical outcomes in a pilot series of patients with proximal phalanx fractures treated with dual antegrade IMHS fixation. METHODS: We performed a retrospective chart review of proximal phalanx fractures treated with dual antegrade IMHS fixation with a minimum 1 year of follow-up...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29313380/an-on-top-plasty-reconstruction-for-complicated-radial-polydactyly
#4
Brian P Kelley, Carrie Kubiak, Kevin C Chung
BACKGROUND: The clinical presentation of radial polydactyly can vary greatly. Careful planning and appreciation of the anatomic subtleties provides alternative surgical options to improve patient outcomes. METHODS: We present a case of a well-formed accessory web space thumb and a hypoplastic primary thumb. RESULTS: Rather than excising the accessory digit, we performed a spare-part, on-top-plasty reconstruction to replace the diminutive distal phalanx of the primary thumb...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29285773/functional-architecture-of-the-somatosensory-homunculus-detected-by-electrostimulation
#5
Franck-Emmanuel Roux, Imène Djidjeli, Jean-Baptiste Durand
KEY POINTS: We performed a prospective electrostimulation study, based on 50 operated intact patients, to acquire accurate MNI coordinates of the functional areas of the somatosensory homunculus. In the contralateral BA1, the hand representation displayed not only medial-to-lateral, little-finger-to-thumb, but also rostral-to-caudal discrete somatotopy, with the tip of each finger located more caudally than the proximal phalanx. The analysis of the MNI body coordinates showed rare inter-individual variations in the medial-to-lateral somatotopic organization in these patients with rather different intensity thresholds needed to elicit sensations in different body parts...
December 29, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29279564/a-case-of-a-giant-cell-tumor-of-the-tendon-sheath-of-the-middle-phalanx-of-the-fourth-toe
#6
Kyochika Okabe, Toshihiko Hoashi, Mariko Asahara, Eiko Esaki, Michiko Ito, Rui Otsuka, Yoko Funasaka, Hidehisa Saeki
Giant cell tumors of the tendon sheath (GCT-TS) are one of the most common tumors of the hand, along with ganglions. However, occurrence in the toes is far less common. Here we present a rare case of GCT-TS at the middle phalanx level of the flexor digitorum longus tendon sheath. Magnetic resonance imaging showed low intensity both on T1 and T2 weighted images. To the best of our knowledge, our case is the first report of a GCT-TS arising at the middle phalanx level of the flexor digitorum longus tendon sheath of the fourth toe...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29273187/distal-syme-hallux-amputation-for-tip-of-toe-wounds-and-gangrene-complicated-by-osteomyelitis-of-the-distal-phalanx-surgical-technique-and-outcome-in-consecutive-cases
#7
Troy J Boffeli, Mark S Goss
Distal hallux gangrene and neuropathic ulceration associated with digit deformity frequently result in osteomyelitis of the distal phalanx. Ideal treatment would involve limited resection to preserve function. We describe our surgical technique and retrospective results for distal Syme hallux amputation with plantar flap closure. An institutional review board-approved review was conducted on cases performed over 8 years. A total of 15 consecutive patients (16 digits) with hallux soft tissue loss who had undergone distal Syme hallux amputation were included...
December 19, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29249676/refining-the-cross-finger-flap-considerations-of-flap-insetting-aesthetics-and-donor-site-morbidity
#8
Chew-Wei Chong, Cheng-Hung Lin, Yu-Te Lin, Chung-Chen Hsu, Shih-Heng Chen
We described a laterally based cross-finger flap for reconstruction of soft tissue defects in the fingers. This modification enables coverage of volar or dorsal soft tissue defects at the distal, middle or proximal phalanx. From March 2015 to January 2017, a total of 12 patients (13 fingers) underwent soft tissue reconstruction of the fingers with a laterally based cross-finger flap. The flap dimensions ranged from 13 ×7 mm to 43 ×13 mm. Eleven of the 13 flaps survived completely. The two flap failures were attributed to injuries in the donor fingers, rendering the blood supply of the flaps unreliable...
November 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29244687/pilon-fractures-of-the-base-of-the-proximal-phalanx-direct-intraosseous-joint-reduction-with-bone-grafting-and-mini-screws-a-case-report
#9
Iva Neshkova, Rainer H Meffert
CASE: A 31-year-old woman sustained a closed pilon fracture of the base of the second proximal phalanx. Computed tomography showed comminution, central depression, and splaying of the articular surface. We used a method of direct intraosseous joint reduction in combination with bone-grafting and mini-screws to treat the fracture. For reduction, a golf-club-shaped instrument was inserted into the medullary cavity through a drill-hole in the phalanx. CONCLUSION: The advantage of this technique is that it leaves the joint capsular complex and the extensor hood intact...
January 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29244597/relationship-between-repository-radiographic-findings-and-subsequent-performance-of-quarter-horses-competing-in-cutting-events
#10
Myra F Barrett, C Wayne McIlwraith, Erin K Contino, Richard D Park, Christopher E Kawcak, David D Frisbie, James R zumBrunnen
OBJECTIVE To investigate potential associations between repository radiographic findings and subsequent performance of Quarter Horses competing in cutting events. DESIGN Retrospective cohort study. SAMPLE Repository radiographs (ie, radiographs obtained at the time of sale) for 343 client-owned horses. PROCEDURES Repository radiographic findings were compared with objective measures of performance, including the likelihood of competing; the likelihood of earning money as a 3-year-old, as a 4-year-old, and as a 3- and 4-year-old combined; and the amount of money earned as a 3-year-old, as a 4-year-old, and as a 3- and 4-year-old combined...
January 1, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29230868/frequency-distribution-of-osteochondral-fragmentation-of-the-dorsoproximal-articular-surface-of-the-proximal-phalanx-in-racing-thoroughbreds-in-the-uk
#11
R Walsh, M R W Smith, I M Wright
BACKGROUND: Osteochondral fragmentation of the dorsoproximal margin of the proximal phalanx is commonly recognised in racing Thoroughbreds. Frequency distribution has been documented in racing Thoroughbreds and Quarter Horses in the USA and in European Warmbloods but no data have been published from the UK. Concurrent intra-articular soft tissue lesions and radiographic accuracy of fragment distribution in racing Thoroughbreds have not previously been reported. OBJECTIVES: To document frequency distribution of dorsoproximal fragmentation of the proximal phalanx in a UK population of racing Thoroughbreds and to compare this with published data...
December 12, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29230182/a-network-model-to-explore-the-effect-of-the-micro-environment-on-endothelial-cell-behavior-during-angiogenesis
#12
Nathan Weinstein, Luis Mendoza, Isidoro Gitler, Jaime Klapp
Angiogenesis is an important adaptation mechanism of the blood vessels to the changing requirements of the body during development, aging, and wound healing. Angiogenesis allows existing blood vessels to form new connections or to reabsorb existing ones. Blood vessels are composed of a layer of endothelial cells (ECs) covered by one or more layers of mural cells (smooth muscle cells or pericytes). We constructed a computational Boolean model of the molecular regulatory network involved in the control of angiogenesis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29223628/five-and-10-year-follow-up-of-nonvascularized-toe-phalanx-transfers
#13
Hidehiko Kawabata, Daisuke Tamura
PURPOSE: The purpose of this study was to evaluate long-term outcomes of nonvascularized toe phalanx transfer. METHODS: We retrospectively reviewed 54 nonvascularized toe phalanx transfers in 29 children with symbrachydactyly. Forty-seven transfers in 24 children were evaluated at 5-year follow-up and 27 transfers in 14 children were evaluated at 10-year follow-up. We recorded the incidence of the early physeal closure and the length of the transferred toe phalanx on plain radiographs at 5- and 10-year follow-up...
December 6, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29218598/discrimination-threshold-for-haptic-volume-perception-of-fingers-and-phalanges
#14
Zhilin Zhang, Chunlin Li, Jian Zhang, Qiang Huang, Ritsu Go, Tianyi Yan, Jinglong Wu
Humans exhibit a remarkable ability to discriminate variations in object volume based on natural haptic perception. The discrimination thresholds for the haptic volume perception of the whole hand are well known, but the discrimination thresholds for haptic volume perception of fingers and phalanges are still unknown. In the present study, two psychophysical experiments were performed to investigate haptic volume perception in various fingers and phalanges. The configurations of both experiments were completely dependent on haptic volume perception from the fingers and phalanges...
December 7, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29217092/mri-based-experimentations-of-fingertip-flat-compression-geometrical-measurements-and-finite-element-inverse-simulations-to-investigate-material-property-parameters
#15
Jérémy Dallard, Xavier Merlhiot, Noémie Petitjean, Sonia Duprey
Modeling human-object interactions is a necessary step in the ergonomic assessment of products. Fingertip finite element models can help investigating these interactions, if they are built based on realistic geometrical data and material properties. The aim of this study was to investigate the fingertip geometry and its mechanical response under compression, and to identify the parameters of a hyperelastic material property associated to the fingertip soft tissues. Fingertip compression tests in an MRI device were performed on 5 subjects at either 2 or 4 N and at 15° or 50°...
November 29, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29210097/radiography-of-the-distal-extremity-of-the-manus-in-the-donkey-foal-normal-images-and-quantitative-characterization-from-birth-to-2%C3%A2-years-of-age-a-pilot-study
#16
B Van Thielen, I Willekens, A Van der Schicht, P Pestieau, F Verhelle, P Goossens, R Decoster, O Jacqmot, P Delperdange, V Busoni, G De Mol, N Buls, S Provyn, M Kichouh, J de Mey, R Murray
This study describes a radiographic survey of the anatomical development of the distal extremity of the manus in the donkey from 0 to 2 years of age. The right distal limb of 10 donkey foals, born in the spring of 2012, underwent radiographs every month for the first 6 months of age and every 3 months during the following 18 months. Latero-medial radiographs with and without barium marker at the coronary band and dorso-palmar radiographs with both front feet in weight bearing were obtained. The distal physis of the third metacarpal bone and the proximal physis of the proximal phalanx (phalanx proximalis) were closed at the mean age of 18...
December 6, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29209577/new-anatomical-information-of-the-wukongopterid-kunpengopterus-sinensis-wang-et-al-2010-based-on-a-new-specimen
#17
Xin Cheng, Shunxing Jiang, Xiaolin Wang, Alexander W A Kellner
The Wukongopteridae compose a non-pterodactyloid clade of pterosaurs that are the most abundant flying reptiles in the deposits of the Middle-Late Jurassic Yanliao Biota. Until now, five species of three genera and two additional unnamed specimens have been described. Here we report on a new material, IVPP V 23674, that can be referred to the wukongopterid Kunpengopterus sinensis due to several features such as a comparably short nasoantorbital fenestra, the dorsally rising posterodorsal margin of the ischium, and the very short first pedal phalanx of digit V relative to metatarsal IV...
2017: PeerJ
https://www.readbyqxmd.com/read/29207822/estimation-of-correlation-between-chronological-age-skeletal-age-and-dental-age-in-children-a-cross-sectional-study
#18
Madhulika Macha, Bharti Lamba, Jogendra Sai Sankar Avula, Sridhar Muthineni, Pratap Gowd Jai Shankar Margana, Prasad Chitoori
Introduction: In the modern era, identification and determination of age is imperative for diversity of reasons that include disputed birth records, premature delivery, legal issues and for validation of birth certificate for school admissions, adoption, marriage, job and immigration. Several growth assessment parameters like bone age, dental age and the combination of both have been applied for different population with variable outcomes. It has been well documented that the chronological age does not necessarily correlate with the maturational status of a child...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207688/radiological-biometric-study-of-metatarsals-and-phalanges
#19
Shrish Patil, G H Hanumantharaya, Suresh P Desai, Madhumati Nidoni
Introduction: Several diseases affect the forefoot bones. Relative dimensions of the forefoot bones are important considerations for preoperative and postoperative assessment of surgeries. The choice of a particular surgery over another can also be made if the surgeon knows the length to which a bone needs to be lengthened or shortened in comparison to other bones of the forefoot. Aim: To measure the dimensions of the metatarsals and phalanges on standardized radiographs and to determine possible correlations amongst them...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29200490/management-of-nail-bed-injuries-associated-with-fingertip-injuries
#20
Alexander George, Reena Alexander, C Manju
Background: Management of nail injuries can often be a challenging experience, especially in presence of complex fingertips' injuries that include soft tissue loss and distal phalanx injury. Most studies found in the literature focus on individual injuries and describe methods to tackle those injuries, notwithstanding the fact that the nail, nailbed, distal phalanx, soft tissue and skin of the finger tip form a complex and often more than one element of this complex is injured. This retrospective study therefore focuses on the management of nail bed injuries as a part of the complex finger tip injury and outlines the surgical principles and techniques that were used in their management...
November 2017: Indian Journal of Orthopaedics
keyword
keyword
35047
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"