keyword
MENU ▼
Read by QxMD icon Read
search

Ulna

keyword
https://www.readbyqxmd.com/read/28087638/intrinsic-properties-of-limb-bud-cells-can-be-differentially-reset
#1
Patricia Saiz-Lopez, Kavitha Chinnaiya, Matthew Towers, Maria A Ros
An intrinsic timing mechanism specifies the positional values of the zeugopod (i.e. radius/ulna) and then autopod (i.e. wrist/digits) segments during limb development. Here we have addressed if this timing mechanism ensures that patterning events occur only once by grafting GFP-expressing autopod progenitor cells to the earlier host signaling environment of zeugopod progenitor cells. We show that early and late autopod progenitors fated for the wrist and phalanges, respectively, both contribute to the entire host autopod indicating that the autopod positional value is irreversibly determined as revealed by Hoxa13 expression...
January 13, 2017: Development
https://www.readbyqxmd.com/read/28058796/hox-gene-expression-in-the-specialized-limbs-of-the-iberian-mole-talpa-occidentalis
#2
Constanze Bickelmann, Wessel van der Vos, Merijn A G de Bakker, Rafael Jiménez, Saskia Maas, Marcelo R Sánchez-Villagra
Fossorial talpid moles use their limbs predominantly for digging, which explains their highly specialized anatomy. The humerus is particularly short and dorsoventrally rotated, with broadened distal and proximal parts where muscles attach and which facilitate powerful abductive movements. The radius and ulna are exceptionally robust and short. The ulna has an expanded olecranon process. The femur is generalized, but the fused tibia-fibula complex is short and robust. To understand the developmental bases of these specializations, we studied expression patterns of four 5' Hox genes in the fossorial Iberian mole (Talpa occidentalis)...
January 2017: Evolution & Development
https://www.readbyqxmd.com/read/28052828/forearm-instability-anatomy-biomechanics-and-treatment-options
#3
REVIEW
Julie E Adams
The forearm unit consists of the radius and ulna, a complex and interrelated set of joints (distal radioulnar joint, proximal radioulnar joint) and the soft tissue stabilizers between the 3 bones. Distally, this is represented by the triangular fibrocartilage complex at the wrist, proximally by the annular ligament at the elbow, and in the forearm by the interosseous membrane. Disruptions in any of these structures may lead to forearm instability, with consequences at each of the remaining structures.
January 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28034486/biomechanical-comparison-of-open-and-arthroscopic-transosseous-repair-of-triangular-fibrocartilage-complex-foveal-tears-a-cadaveric-study
#4
Ching-Hou Ma, Ting-Sheng Lin, Chin-Hsien Wu, Dong-Yi Li, Shih-Chieh Yang, Yuan-Kun Tu
PURPOSE: To biomechanically compare the stability between open repair and arthroscopic transosseous repair technique for reattachment of the foveal triangular fibrocartilage complex (TFCC). We also evaluated the feasibility of a new aiming device for the creation of 2 bone tunnels simultaneously during the arthroscopic technique. METHODS: Six matched pairs of fresh-frozen forearm cadaver specimens were prepared for testing. Group I specimens were treated by open repair with suture anchor...
December 26, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28033150/complex-distal-radius-fractures-an-anatomic-algorithm-for-surgical-management
#5
Peter Charles Rhee, Robert J Medoff, Alexander Y Shin
Most distal radius fractures result from low-energy mechanisms and can be successfully treated nonsurgically or with a variety of surgical techniques if indicated. High-energy distal radius fractures can involve extensive comminution or bone loss with concomitant ligament, soft-tissue, and neurovascular injuries. In patients with complex distal radius fractures, reconstruction of the distal radius, ulna, and triangular fibrocartilage complex can be challenging. Effective restoration of the bony architecture requires intimate knowledge of the anatomy of the distal radius, a thorough understanding of the goals of treatment, versatility in surgical approaches, and familiarity with multiple fixation options...
December 28, 2016: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28028411/diaphyseal-fractures-of-the-forearm-in-adults-plating-or-intramedullary-nailing-is-a-better-option-for-the-treatment
#6
Tabet A Al-Sadek, Desislav Niklev, Ahmed Al-Sadek
BACKGROUND: Fractures of the radius and ulna occupy a large field of the modern traumatology. Therefore, these fractures are a major subject in modern orthopaedics and traumatology. The study of the mechanisms of the trauma, and the pathophysiological changes that occur are of great importance for the development of ever more efficient and varied ways of the treatment and prophylactics of this type of fracture. AIM: The aim of this paper was to study the pattern of the diaphyseal fractures of the forearm in adults, to decide the modalities of surgical management, to observe the period of fracture healing clinically and radiologically, as well to study the rehabilitation of the patients...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28018075/intraosseous-leiomyoma-of-the-calcaneum-an-unusual-bone-tumor-of-foot-and-review-of-literature
#7
Abhijeet Ashok Salunke, Pathik Chandrakant Vala, Harpreet Singh, Rohan Parwani, Sanjay Gandhi, Diva Shah
Leiomyoma is a benign tumor of smooth muscle origin and commonly diagnosed in the uterus, gastrointestinal tract, skin, and mucous membranes. To the best of our knowledge, the only reported intraosseous leiomyomas in extremities occurred in the proximal aspect and distal aspect of the femur, in the tibia, and in the ulna. We are not aware of any previous reports of intraosseous leiomyomas in the foot. The radiograph of the intraosseous leiomyoma shows unilocular or multilocular lytic lesion with sclerotic rim...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28011034/interosseous-ligament-and-transverse-forearm-stability-a-biomechanical-cadaver-study
#8
Christina J Gutowski, Kurosh Darvish, Asif M Ilyas, Christopher M Jones
PURPOSE: The interosseous ligament (IOL) is known to be an important longitudinal stabilizer of the forearm. We hypothesize that it may also contribute to transverse stability, with pronosupination tensioning of the radius relative to the ulna. Therefore, when injured, we predict the interosseous space should widen in the transverse plane, enough to be appreciable on plain radiographs. A measurable difference in interosseous space, comparing an injured with an uninjured forearm, can potentially be of diagnostic and clinical value...
December 20, 2016: Journal of Hand Surgery
https://www.readbyqxmd.com/read/27997565/in-vivo-non-invasive-characterization-of-human-bone-by-hybrid-broadband-600-1200-nm-diffuse-optical-and-correlation-spectroscopies
#9
Sanathana Konugolu Venkata Sekar, Marco Pagliazzi, Eugènia Negredo, Fabrizio Martelli, Andrea Farina, Alberto Dalla Mora, Claus Lindner, Parisa Farzam, Núria Pérez-Álvarez, Jordi Puig, Paola Taroni, Antonio Pifferi, Turgut Durduran
Non-invasive in vivo diffuse optical characterization of human bone opens a new possibility of diagnosing bone related pathologies. We present an in vivo characterization performed on seventeen healthy subjects at six different superficial bone locations: radius distal, radius proximal, ulna distal, ulna proximal, trochanter and calcaneus. A tailored diffuse optical protocol for high penetration depth combined with the rather superficial nature of considered tissues ensured the effective probing of the bone tissue...
2016: PloS One
https://www.readbyqxmd.com/read/27984446/primary-wound-closure-after-open-fracture-a-prospective-cohort-study-examining-non-union-and-deep-infection
#10
Angela V Scharfenberger, Khaled Alabassi, Stephanie Smith, Donald Weber, Sukhdeep K Dulai, Joseph W Bergman, Lauren A Beaupre
OBJECTIVES: Determine the proportion of subjects developing deep infection or non-union following primary wound closure of open fractures (humerus, radius/ulna, femur, tibia/fibula). Secondarily, a matched-series analysis compared outcomes with subjects who underwent delayed wound closure. DESIGN: Prospective cohort between 2009 and 2013 of subjects undergoing primary closure. SETTING: Trauma centre PARTICIPANTS:: 83 (84 fractures) subjects were enrolled...
November 16, 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27973381/forearm-muscle-quality-as-a-better-indicator-of-physical-performance-than-handgrip-strength-in-older-male-ground-golf-players-aged-70-to-89
#11
T Abe, R S Thiebaud, J P Loenneke
OBJECTIVES: To examine the associations between absolute and relative handgrip strength (HGS) and physical performance. METHODS: A total of 135 old men aged 70-89 years had muscle thickness (MT) measured by ultrasound at anterior forearm (MT-ulna). Maximum voluntary HGS was measured for the dominant hand. Relative HGS was calculated as ratios of HGS to MT-ulna (HGS/MT-ulna, kg/cm), HGS to forearm girth (HGS/forearm-girth, kg/cm), and HGS to body mass (HGS/body mass, kg/kg)...
December 14, 2016: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/27968844/evaluation-of-absorbable-composite-polylactide-hydroxyapatite-bone-fixation-devices-a-cohort-study
#12
Jianxun Ding, Xiuli Zhuang, Xuesi Chen
BACKGROUND: At present, most bone fixation devices are made of metal, and are applied to prevent the postoperative dislocation of bone fragments. The major issues with such metal bone fixation devices are the necessity for secondary surgery to remove the devices, stress shielding of bone, stimulation and erosion of bone and soft tissue, and limited biocompatibility. To mitigate these problems, we aimed to assess use of a flexible absorbable polymer bone fixation devices. These devices were certified for use in China in September, 2015...
October 2016: Lancet
https://www.readbyqxmd.com/read/27939685/regionally-restricted-hox-function-in-adult-bone-marrow-multipotent-mesenchymal-stem-stromal-cells
#13
Danielle R Rux, Jane Y Song, Ilea T Swinehart, Kyriel M Pineault, Aleesa J Schlientz, Kelsey G Trulik, Steve A Goldstein, Ken M Kozloff, Daniel Lucas, Deneen M Wellik
Posterior Hox genes (Hox9-13) are critical for patterning the limb skeleton along the proximodistal axis during embryonic development. Here we show that Hox11 paralogous genes, which developmentally pattern the zeugopod (radius/ulna and tibia/fibula), remain regionally expressed in the adult skeleton. Using Hoxa11EGFP reporter mice, we demonstrate expression exclusively in multipotent mesenchymal stromal cells (MSCs) in the bone marrow of the adult zeugopod. Hox-positive cells express PDGFRα and CD51, are marked by LepR-Cre, and exhibit colony-forming unit fibroblast activity and tri-lineage differentiation in vitro...
December 19, 2016: Developmental Cell
https://www.readbyqxmd.com/read/27914549/age-of-fusion-of-the-distal-radial-and-ulnar-epiphyses-from-hand-radiographs-a-study-in-kashmiri-population
#14
Nida Hassan, Farida Noor, Shabir Ahmad, Khalid Majid Fazili
Age estimation is a crucial parameter involved in investigations pertaining to civil and criminal procedures. It also aids in various examinations in forensic medicine, pediatrics, endocrinology and radiology. One of the important methods for skeletal age estimation is the age of fusion of the epiphyses. But there occur variations in the skeletal ages due to environmental, hormonal, ethnic and other factors. Hence, there arises the need for separate standards of ossification for different regions. The present study was conducted to ascertain the age of fusion of the distal radial and ulnar epiphyses in Kashmiri population...
December 2016: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/27909133/the-use-of-the-distal-radius-and-ulna-classification-for-the-prediction-of-growth-peak-growth-spurt-and-growth-cessation
#15
J P Y Cheung, P W H Cheung, D Samartzis, K M C Cheung, K D K Luk
AIMS: We report the use of the distal radius and ulna (DRU) classification for the prediction of peak growth (PG) and growth cessation (GC) in 777 patients with idiopathic scoliosis. We compare this classification with other commonly used parameters of maturity. PATIENTS AND METHODS: The following data were extracted from the patients' records and radiographs: chronological age, body height (BH), arm span (AS), date of menarche, Risser sign, DRU grade and status of the phalangeal and metacarpal physes...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27908550/estimated-height-from-knee-height-or-ulna-length-and-self-reported-height-are-no-substitute-for-actual-height-in-inpatients
#16
Flávia Moraes Silva, Luciane Figueira
OBJECTIVE: The aim of this study was to evaluate the precision of estimated height from ulna length (UL) using the Malnutrition Universal Screening Tool (MUST) equation and compare it with predicted height from knee height (KH), and self-reported height in estimating actual body height in inpatients. METHODS: This cross-sectional study was carried out with patients admitted to an emergency service of a tertiary public hospital. Data were collected, at the patients' bedsides, from a specific questionnaire and anthropometric measurements...
January 2017: Nutrition
https://www.readbyqxmd.com/read/27900701/elbow-instability-are-we-able-to-classify-it-review-of-the-literature-and-proposal-of-an-all-inclusive-classification-system
#17
REVIEW
A Marinelli, E Guerra, R Rotini
BACKGROUND: In the recent years, considerable improvements have come in biomechanical knowledge about the role of elbow stabilizers. In particular, the complex interactions among the different stabilizers when injured at the same time have been better understood. Anyway, uncertainties about both nomenclature and classification still exist in the definition of the different patterns of instability. MATERIAL AND METHODS: The authors examine the literature of the last 130 years about elbow instability classification, analyzing the intuitions and the value of each of them...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900098/clinical-effects-of-three-surgical-approaches-for-a-giant-cell-tumor-of-the-distal-radius-and-ulna
#18
Jing Zhang, Yi Li, Dongqi Li, Junfeng Xia, Su Li, Shunling Yu, Yedan Liao, Xiaojuan Li, Huilin Li, Zuozhang Yang
The aim of the present study was to assess the curative effects of three surgical approaches for a giant cell tumor (GCT) of the distal radius and ulna. A total of 27 patients with GCT on distal radius and ulnas (7 and 20, respectively), confirmed by biopsy, were treated with individualized treatment regimens, according to the Campanacci's grade system: i) Curettage plus inactivated tumor bed and allogeneic bone graft/bone cement augmentation for Campanacci's grade I GCT of the distal radius and ulna (Group A); ii) simple en bloc resection for Campanacci's grade II and III GCT of the distal ulna (Group B); iii) en bloc resection and reconstruction with non-vascularized fibular autograft/allogeneic bone graft for Campanacci's II and III GCT of the distal radius (Group C)...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27890215/-incidence-of-distal-ulna-fractures-associated-with-distal-radius-fractures-treatment-options
#19
G Herzberg, T Castel
Fractures of the neck and/or head of the ulna or distal ulna fracture (DUF) other than ulnar styloid fractures can occur in combination with distal radius fractures (DRF). This combination can have a significant influence on the treatment and prognosis since it causes the entire distal forearm to be unstable. In a series of 1279 consecutive unilateral DRFs, we found an associated ulnar neck fracture in 5.9% of cases, ulnar head and neck fracture in 1.6%, and isolated ulnar head fracture in 1.4%. Overall, 9% of cases in this study had a DUF with a DRF...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27890207/-the-meu-classification-system-for-distal-radius-fractures-prognostic-and-therapeutic-value-of-an-independent-assessment-of-various-fracture-parameters
#20
J Laulan, E Marteau, G Bacle
Distal radius fractures (DRF) are often complex injuries that can impact the radial metaphysis (M), the radial epiphysis (E) and the distal ulna (U). Each of these parameters can influence the outcome. In a given injury, these three DRF components are involved to a varying degree and are variably associated. The MEU classification independently analyzes the three main bone components of the fracture; thus, all possible combinations and each specific injury can be described. It accurately depicts the type and severity of the DRF...
December 2016: Hand Surgery and Rehabilitation
keyword
keyword
8367
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"