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https://www.readbyqxmd.com/read/28917221/determining-the-predictive-equation-for-height-from-ulnar-length-in-the-vietnamese-population
#1
Ana Bonell, Nguyen Nguyen Huyen, Vu Dinh Phu, Heiman Wertheim, Behzad Nadjm
BACKGROUND AND OBJECTIVES: Height is an essential measurement in clinical medicine. It allows the calculation of body mass index, ideal body weight, basic energy requirements and tidal volumes. In many patient groups, such as the critically ill, height cannot be measured easily and surrogate anthropometric measures are used. Regression equations estimating height are specific to ethnicity. We aimed to develop the regression equation for Vietnamese men and women to predict height from ulna length and so improve prescription of life-saving treatment in the intensive care units...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28913386/persistent-medial-subluxation-of-the-ulna-with-radiotrochlear-articulation
#2
Amir R Kachooei, David Ring
Two patients-one with a terrible triad fracture dislocation and one with an anterior olecranon fracture dislocation-were treated for maltracking of the elbow (medial subluxation). The radial head articulated with the lateral trochlea while the ulnar trochlear notch was perched over the medial trochlea. The late revision surgery could not correct the subluxation because the joints were accustomed to the new alignment, however the overall function was reasonable.
July 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28902088/obesity-increases-risk-of-loss-of-reduction-after-casting-for-diaphyseal-fractures-of-the-radius-and-ulna-in-children-an-observational-cohort-study
#3
Christopher J DeFrancesco, Benjamin H Rogers, Apurva S Shah
OBJECTIVES: To determine if high body mass index (BMI) increases the risk of loss of reduction (LOR) following closed reduction and casting for displaced concomitant fractures of the radial and ulnar shafts in pediatric patients. DESIGN: Retrospective cohort study SETTING:: A single tertiary care, urban children's hospital PATIENTS/PARTICIPANTS:: Pediatric patients aged 2-18 years with closed, displaced, concomitant diaphyseal fractures of the radius and ulna (AO/OTA 22-A3) who underwent closed reduction and casting at the study site...
August 26, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28892992/juvenile-hyaline-fibromatosis-a-rare-autosomal-recessive-disease
#4
Prarthana Sameer Kalgaonkar, Minal Wade, Charusheela Warke, Meena Makhecha, Manisha Khare
Systemic hyalinosis is inherited as an autosomal recessive disease. It may also be referred to as Fibromatosis hyalinica multiplex juvenilis and Murray-Puretic-Drescher syndrome. A four and a half-year-old female child presented with multiple soft tissue swellings involving the nose, orbital ridges, ears, bony prominences of the ulna and tibia and the parietal and occipital prominence and had gum hypertrophy. The diagnosis of this rare condition was based upon clinicopathological correlation, wherein the histopathological examination of cutaneous lesions reveals accumulation of hyaline material with fibroblast in the dermis...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890302/ulna-humerus-contact-mechanics-finite-element-analysis-and-experimental-measurements-using-a-tactile-pressure-sensor
#5
Mohsen Sharifi Renani, Munsur Rahman, Akin Cil, Antonis P Stylianou
Elbow articular cartilage withstands high compressive and shear forces while protecting the bone from excessive loading. Better understanding of elbow cartilage contact mechanics can provide insight into cartilage degeneration. In this study a tactile pressure sensor was used to measure the contact pressure distribution within the ulno-humeral joint of two cadaver specimens at 20° flexion angle across three different axial loads of 80 N, 110 N, and 140 N. Corresponding 3D finite element (FE) models were constructed from magnetic resonance imaging (MRI) and contact analysis was performed for each specimen with boundary and loading conditions identical to the experiment...
September 7, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28888571/accuracy-and-early-clinical-outcome-of-3-dimensional-planned-and-guided-single-cut-osteotomies-of-malunited-forearm-bones
#6
Simon Roner, Lazaros Vlachopoulos, Ladislav Nagy, Andreas Schweizer, Philipp Fürnstahl
PURPOSE: To investigate the reduction accuracy of 3-dimensional planned single-cut osteotomies (SCOTs) of the forearm that were performed using patient-specific guides. METHODS: A retrospective analysis of SCOTs performed between 2012 and 2014 was performed. Ten patients (age, 15-59 years) with 6 malunions of the ulna and 6 malunions of the radius were identified. The reduction accuracy was assessed by comparing the 3-dimensional preoperative plan of each osteotomy with the superimposed bone model extracted from postoperative computed tomography data...
September 6, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28877600/technique-for-intramedullary-stabilization-of-ulnar-neck-fractures
#7
Jack Abboudi, Scott M Sandilands, C Edward Hoffler, William Kirkpatrick, William Emper
BACKGROUND: Distal ulna fractures at the ulnar neck can be seen in association with distal radius fractures, and multiple techniques have been described to address the ulnar neck component of these injuries. We have found that treatment of ulnar neck fractures can be challenging in terms of anatomy and fracture fixation. We present a new percutaneous fixation technique for ulnar neck fractures commonly seen with distal radius fractures. TECHNIQUE: Fixation of the ulnar neck fracture is performed after fixation of the distal radius fracture...
September 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28872525/thumb-ossification-composite-index-toci-for-predicting-peripubertal-skeletal-maturity-and-peak-height-velocity-in-idiopathic-scoliosis-a-validation-study-of-premenarchal-girls-with-adolescent-idiopathic-scoliosis-followed-longitudinally-until-skeletal-maturity
#8
Alec L H Hung, W W Chau, B Shi, Simon K Chow, Fiona Y P Yu, T P Lam, Bobby K W Ng, Y Qiu, Jack C Y Cheng
BACKGROUND: Accurate skeletal maturity assessment is important to guide clinical evaluation of idiopathic scoliosis, but commonly used methods are inadequate or too complex for rapid clinical use. The objective of the study was to propose a new simplified staging method, called the thumb ossification composite index (TOCI), based on the ossification pattern of the 2 thumb epiphyses and the adductor sesamoid bone; to determine its accuracy in predicting skeletal maturation when compared with the Sanders simplified skeletal maturity system (SSMS); and to validate its interrater and intrarater reliability...
September 6, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28866763/bone-health-is-maintained-while-fat-mass-is-reduced-in-pre-pubertal-children-with-obesity-participating-in-a-1-year-family-centered-lifestyle-intervention
#9
Tamara R Cohen, Tom J Hazell, Catherine A Vanstone, Celia Rodd, Hope A Weiler
Diet and physical activity (PA) influence bone health in children. This study tested whether increasing milk and milk products and weight-bearing types of PA favorably changed bone outcomes assessed by dual-energy X-ray absorptiometry (DXA) and bone biomarkers in children with obesity participating in a 1-year family-centered lifestyle intervention. Children were randomized to one of three groups: Control (Ctrl; no intervention), Standard treatment (StnTx: two servings milk and milk products/day; meet PA guidelines plus weight-bearing PA three times/week), or Modified treatment (ModTx: four servings milk and milk products/day; meet PA guidelines plus daily weight-bearing PA)...
September 2, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28864862/is-the-novel-olecranon-tension-plate-a-valid-alternative-to-tension-band-wiring-of-olecranon-fractures-a-biomechanical-study-on-cadaver-bones
#10
Dominik Gruszka, Charlotte Arand, Julia Greenfield, Tobias E Nowak, Raphael Kuechle, Sebastian Kuhn, Pol M Rommens
INTRODUCTION: Tension band wiring (TBW) used for olecranon fractures is afflicted with a high rate of complications. The aim of this study was to compare the stability of the TBW versus an alternative, novel low-profile olecranon tension plate (OTP) with angular stable screws in a simulated complex fracture model. MATERIALS AND METHODS: Nine fresh-frozen pairs of cadaver proximal ulnae with an oblique osteotomy and an additional wedge fragment simulating an unstable fracture were tested...
September 1, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28854496/the-efficacy-and-safety-of-combination-therapy-of-low-intensity-pulsed-ultrasound-stimulation-in-the-treatment-of-unstable-both-radius-and-ulna-fractures-in-children
#11
Tsuyoshi Ota, Soichiro Itoh, Kimihiro Yamashita
BACKGROUND: There are few reports of Low-intensity pulsed ultrasound (LIPUS) treatment for fresh forearm fractures in children. OBJECTIVES: LIPUS stimulation was applied after surgery of forearm fractures in children and the efficacy and safety of combination therapy of LIPUS treatment were evaluated. PATIENTS AND METHODS: Children with both radius and ulna fracture, twenty-five diaphysis (mid-R&U) and nineteen metaphysis (dist-R&U) fractures, were treated with intramedullary nailing followed by cast and splint mobilization...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28844582/outcomes-of-isolated-radial-osteotomy-for-volar-distal-radioulnar-joint-instability-following-radial-malunion-in-children
#12
Ashley Miller, Nina Lightdale-Miric, Emily Eismann, Preston Carr, Kevin James Little
PURPOSE: The radius bone has a slight dorsoradial bow that allows for full forearm pronosupination around the ulna. However, radial malunion can lead to reversal of the radial bow and subsequent volar instability of the distal radioulnar joint (DRUJ), predominantly in supination. This study assessed the outcomes of corrective radial osteotomy for volar DRUJ instability after radial malunion in children. METHODS: The charts of 7 children (2 boys and 5 girls) treated with corrective radial osteotomy for volar DRUJ instability after a radius fracture or deformity were reviewed...
August 23, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28832945/occurrence-of-osteon-banding-in-adult-human-cortical-bone
#13
Janna M Andronowski, Isaac V Pratt, David M L Cooper
OBJECTIVES: Differentiating human from nonhuman fragmented bone is often accomplished using histological methods if the observation of gross morphology proves insufficient. Linearly oriented primary and/or secondary osteonal systems, commonly referred to as osteon bands, are described as a strong indicator of nonhuman bone, particularly the occurrence of multiple bands. This phenomenon has been conventionally documented using two-dimensional (2D) histology, but such analyses are destructive and typically limited to a single cross-section...
August 19, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28832931/the-characteristic-mid-shaft-cross-sectional-shape-of-the-ulna-in-jomon-hunter-gatherers
#14
Yasuo Hagihara, Takashi Nara
OBJECTIVES: The Jomon people were hunter-gatherers who inhabited the Japanese archipelago between 10,000 BC and 300 BC. Here, we focus on the mid-shaft cross-sectional shape of the ulna in the Jomon population and compare it with modern Japanese people. MATERIALS AND METHODS: Jomon specimens, including 32 males and 22 females, were excavated from shell mound sites in the Pacific and Seto inland coastal area of Honshu island in the Japanese archipelago dated to the Late-to-Final Jomon phase (between 2,000 BC and 300 BC)...
August 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28828263/the-effects-of-captive-versus-wild-rearing-environments-on-long-bone-articular-surfaces-in-common-chimpanzees-pan-troglodytes
#15
Kristi L Lewton
The physical environments of captive and wild animals frequently differ in substrate types and compliance. As a result, there is an assumption that differences in rearing environments between captive and wild individuals produce differences in skeletal morphology. Here, this hypothesis is tested using a sample of 42 captive and wild common chimpanzees (Pan troglodytes). Articular surface areas of the humerus, radius, ulna, femur, and tibia were calculated from linear breadth measurements, adjusted for size differences using Mosimann shape variables, and compared across sex and environmental groups using two-way ANOVA...
2017: PeerJ
https://www.readbyqxmd.com/read/28828125/congenital-radioulnar-synostosis
#16
Jeffrey Tsai
Congenital radioulnar synostosis is a rare disorder resulting in the fusion of the radius and ulna from birth. Management is conservative. Operative treatment rarely succeeds.
September 2017: Radiology case reports
https://www.readbyqxmd.com/read/28826844/the-fracture-toughness-of-small-animal-cortical-bone-measured-using-arc-shaped-tension-specimens-effects-of-bisphosphonate-and-deproteinization-treatments
#17
Michael D Hunckler, Ethan D Chu, Andrew P Baumann, Tyler E Curtis, Matthew J Ravosa, Matthew R Allen, Ryan K Roeder
Small animal models, and especially transgenic models, have become widespread in the study of bone mechanobiology and metabolic bone disease, but test methods for measuring fracture toughness on multiple replicates or at multiple locations within a single small animal bone are lacking. Therefore, the objective of this study was to develop a method to measure cortical bone fracture toughness in multiple specimens and locations along the diaphysis of small animal bones. Arc-shaped tension specimens were prepared from the mid-diaphysis of rabbit ulnae and loaded to failure to measure the radial fracture toughness in multiple replicates per bone...
August 18, 2017: Bone
https://www.readbyqxmd.com/read/28819594/modified-nicoll-s-graft-for-treatment-of-gap-non-union-of-ulna-a-rare-case-report
#18
Chaitanya Krishna, Jayanta Mondal, Anirudhha Sengupta
INTRODUCTION: Despite the multitude of studies for the treatment of non-unions, no clear criterion has been established for treating a fracture of non-union. Non-union of radius and ulna produces a discrepancy in length which must be restored for adequate rotation and function. Nicoll described a technique of bridging gaps in long bones with solid blocks of cancellous bone and fixing the fragments with metal plates. We utilized modified Nicoll's graft using corticocancellous graft taken from iliac crest...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28817534/radius-regeneration-after-open-fracture-and-extrusion-a-case-report
#19
Kristopher B McCall, David Y Chong
A pediatric patient presenting with an open forearm fracture with segmental defect is rare, and the pediatric orthopedic literature to guide treatment is sparse. There are several described methods to treat the defect, including bone grafting and bone transport techniques. In addition, there are reports of fibular regeneration after resection if the periosteum is left intact. We present a case report of complete regeneration of over half of a pediatric radial shaft with an intact periosteum, after traumatic extrusion from an open fracture...
August 16, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28816287/-diagnostic-value-of-ct-scan-for-ao-b3-fracture-of-distal-radius
#20
S L Li, M Y Wang, Y Lu
OBJECTIVE: To determine whether 3-dimentional CT scans is able to effectively improve the detection rate of AO B3 distal radius fractures in clinics. METHODS: From Jan 2013 to Jan 2014, 30 patients with distal radius fractures were retrospectively enrolled in this study, all the patients directly visited the skeletal trauma emergency department in Beijing Jishuitan Hospital post injury and all of them accepted open reduction and internal fixation of distal radius fractures at last...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
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