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https://www.readbyqxmd.com/read/28087046/morel-lavall%C3%A3-e-injuries-a-multimodality-approach-to-imaging-characteristics
#1
REVIEW
James A Spain, Matthew Rheinboldt, David Parrish, Eric Rinker
Morel-Lavallée lesions are relatively rare closed degloving injuries caused by a shearing force resulting in separation of the dermis and the hypodermis from the subjacent deeper fascia. Although most commonly encountered lateral to the greater trochanter, these injuries may occur throughout the body in a variety of locations. Separation of the hypodermal tissue planes results in a complex serosanguinous fluid collection with areas of internal fat necrosis. The imaging appearance is variable and nonspecific, potentially mimicking superficial hemorrhagic bursitis, or cystic or necrotic primary soft tissue neoplasms...
February 2017: Academic Radiology
https://www.readbyqxmd.com/read/28077621/functional-redundancy-and-non-redundancy-between-two-troponin-c-isoforms-in-drosophila-adult-muscles
#2
Maria B Chechenova, Sara Maes, Sandy T Oas, Cloyce Nelson, Kaveh G Kiani, Anton L Bryantsev, Richard M Cripps
We investigated the functional overlap of two muscle Troponin C (TpnC) genes that are expressed in the adult fruit fly, Drosophila melanogaster: TpnC4 is predominantly expressed in the indirect flight muscles (IFM), whereas TpnC41C is the main isoform in the tergal depressor of the trochanter muscle (TDT or jump muscle). Using CRISPR/Cas9, we created a transgenic line with a homozygous deletion of TpnC41C, and compared its phenotype to a line lacking functional TpnC4 We found that the removal of either of these genes leads to expression of the other isoform in both muscle types...
January 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28073094/the-role-of-lesser-trochanter-fragment-in-unstable-pertrochanteric-a2-proximal-femur-fractures-is-refixation-of-the-lesser-trochanter-worth-the-effort
#3
Christian Ehrnthaller, Alain Christoph Olivier, Florian Gebhard, Lutz Dürselen
BACKGROUND: Instability of osteoporotic pertrochanteric fractures is defined by loss of medial/lateral cortical integrity with the posteromedial fragment including the lesser trochanter being pivotal for load distribution. Literature addressing the importance of lesser trochanter refixation is scarce. To clarify the effect of lesser trochanter refixation on primary stability in these fractures, following study was performed. METHODS: 21 femora were match-paired in 3 groups and osteotomized, creating pertrochanteric fractures (AO-31A2)...
December 30, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28070041/-therapeutic-effect-analysis-for-open-resection-in-osteoid-osteoma-around-lesser-trochanter-of-femur
#4
Xiaoning Guo, Xiaoyang Li, Zhihong Li, Dan Peng, Xiangsheng Zhang, Qing Zhang
To evaluate the radiological features of osteoid osteoma around lesser trochante of femur, and to analyze the outcomes of treatment with open surgery.
 Methods: From July 2013 to August 2015, 14 patients (9 males, 5 females) with osteoid osteoma around lesser trochanter were retrospectively reviewed. The ages of patients were 9-44 (average 20) years old. The duration of symptom was 3-36 (average 8) months. After the X-ray plain radiography, CT and MR, all patients underwent open resection. No intense exercise was allowed in the first three months after the operation...
December 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28056583/neglected-traumatic-anterior-dislocation-of-the-hip-open-reduction-using-the-bernese-trochanter-flip-approach-a-case-report
#5
Sven Young, Leonard Banza
No abstract text is available yet for this article.
January 6, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28034591/women-with-polycystic-ovary-syndrome-have-comparable-hip-bone-geometry-to-age-matched-control-women
#6
Laura E McBreairty, Gordon A Zello, Julianne J Gordon, Shani B Serrao, Roger A Pierson, Donna R Chizen, Philip D Chilibeck
Polycystic ovary syndrome (PCOS) is an endocrine disorder affecting women of reproductive age manifesting with polycystic ovaries, menstrual irregularities, hyperandrogenism, hirsutism, and insulin resistance. The oligomenorrhea and amenorrhea characteristic to PCOS are associated with low bone mineral density (BMD); conversely, the hyperandrogenism and hyperinsulinemia may elicit a protective effect on BMD. As bone geometric properties provide additional information about bone strength, the objective of this study was to compare measures of hip geometry in women with PCOS to a healthy female population...
December 26, 2016: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28031513/double-intertrochanteric-osteotomy-for-trochanteric-overgrowth-and-a-short-femoral-neck-in-adolescents
#7
Turgut Akgül, Cengiz Şen, Halil İbrahim Balci, Gökhan Polat
PURPOSE: To review the outcome of Wagner double intertrochanteric osteotomy for trochanteric overgrowth and a short femoral neck in 7 adolescents. METHODS: Records of one male and 6 females aged 15 to 20 years who underwent modified Wagner osteotomy for trochanteric overgrowth and a short femoral neck by a single senior surgeon were reviewed. The diagnoses were coxa vara (n=2), developmental dysplasia of the hip (n=3), Leg-Calve-Perthes (n=1), and proximal femoral focal deficiency (n=1)...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28017173/femoral-nerve-block-versus-intravenous-fentanyl-in-adult-patients-with-hip-fractures-a-systematic-review
#8
Flávia Vieira Guimarães Hartmann, Maria Rita Carvalho Garbi Novaes, Marta Rodrigues de Carvalho
BACKGROUND: Hip fractures configure an important public health issue and are associated with high mortality taxes and lose of functionality. Hip fractures refer to a fracture occurring between the edge of the femoral head and 5cm below the lesser trochanter. They are common in orthopedic emergencies. The number of proximal femoral fractures is likely to increase as the population ages. The average cost of care during the initial hospitalization for hip fracture can be estimated about US$ 7,000 per patient...
January 2017: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/28002919/is-a-minimally-invasive-anterior-approach-effective-in-old-patients-a-pilot-study
#9
C Faldini, F Perna, F Pilla, N Stefanini, C Pungetti, V Persiani, F Traina
Minimally invasive approach to the hip is a blood preserving surgery, with rapid rehabilitation, and low dislocation rate. Intuitively, these characteristics render this approach extremely suitable in the elderly patient. The aim of this study was to analyze the early clinical and radiographic results in the first 30 consecutive patients above 70 years of age undergoing THR through a minimally invasive anterior approach. Clinical evaluations showed an improvement of the Harris Hip Score and WOMAC score after surgery...
October 2016: Journal of Biological Regulators and Homeostatic Agents
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
#10
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/27992245/isokinetic-evaluation-of-the-hip-flexor-and-extensor-muscles-a-systematic-review
#11
Fabricio Yuri Zapparoli, Marcelo Riberto
INTRODUCTION: Isokinetic dynamometry testing is a safe and reliable method accepted as the "gold standard" in the evaluation of muscle strength in the open kinetic chain. Isokinetic hip examinations face problems in the standardization of the position of the equipment axis; in the individual being examined; in the adjustment of the lever arm and in stabilization strategies for the patients during the tests. Identification of the methodologic procedures with best reproducibility is also needed...
December 19, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27988604/a-new-genus-and-species-of-laelapidae-acari-mesostigmata-from-iran
#12
Shahrooz Kazemi, Frédéric Beaulieu
A new monotypic mite genus of the family Laelapidae, Persicolaelaps gen. nov., is described to accommodate a new species, P. hallidayi sp. nov., on the basis of adult female specimens collected from decaying wood, soil and litter in northern Iran, Golestan and Mazandaran provinces, respectively. The new genus can be distinguished from other members of the family by a combination of morphological attributes, some of which are unique or rarely observed in laelapids, such as (1) a series of small subrectangular sclerites flanking dorsally coxae I and gnathosomal base and adjoining podal plates anterolaterally, which are extending from and fused with sternal shield between coxae I and II; (2) an epigynal shield, so broad as to reach or even overlap acetabula III-IV, posteriorly axe-shaped; (3) metasternal setae absent; (4) a typical anal shield, though capturing pair of opisthogastric setae JV3; (5) gnathotectum triangular and acuminate; (6) the presence of six setae on trochanter IV; (7) genu IV with two ventral setae (occasional in Laelapidae); (8) internal malae with a series of thick, elongate filaments...
December 1, 2016: Zootaxa
https://www.readbyqxmd.com/read/27988594/a-taxonomic-revision-of-the-genus-i-diplonevra-i-lioy-diptera-phoridae-from-china
#13
Guang-Chun Liu, Meng Yang
The Chinese species of Diplonevra are revised, with 16 recognised species from both the Oriental and Palaearctic parts of China. The following 8 species are described as new to science: D. corniculata sp. nov., D. trapezia sp. nov., D. vecticrassa sp. nov., D. lamella sp. nov., D. furcavectis sp. nov., D. brevicula sp. nov., D. triangulata sp. nov., D. spinibotra sp. nov. All known species are re-identified, re-described and illustrated. Diagnostic characters of the base of the posterior face of the hind trochanter and femur are depicted in detail...
December 4, 2016: Zootaxa
https://www.readbyqxmd.com/read/27960138/influence-of-different-sizes-of-composite-femora-on-the-biomechanical-behavior-of-cementless-hip-prosthesis
#14
Florian Schmidutz, Mathias Woiczinski, Manuel Kistler, Christian Schröder, Volkmar Jansson, Andreas Fottner
BACKGROUND: For the biomechanical evaluation of cementless stems different sizes of composite femurs have been used in the literature. However, the impact of different specimen sizes on test results is unknown. METHODS: To determine the potential effect of femur size the biomechanical properties of a conventional stem (CLS Spotorno) were examined in 3 different sizes (small, medium and large composite Sawbones®). Primary stability was tested under physiologically adapted dynamic loading conditions measuring 3-dimensional micromotions...
December 8, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27943098/incidence-of-greater-trochanteric-pain-syndrome-in-patients-suspected-for-femoroacetabular-impingement-evaluated-using-magnetic-resonance-arthrography-of-the-hip
#15
Grazia Pozzi, Ezio Lanza, Cleber Garcia Parra, Ilaria Merli, Luca Maria Sconfienza, Alberto Zerbi
OBJECTIVES: We evaluated the incidence of greater trochanter pain syndrome (GTPS) in patients who underwent magnetic resonance arthrography (MRA) of the hip for a suspected femoroacetabular impingement (FAI) syndrome. METHODS: Hip MRA performed at our institution (3/2012-1/2014) were reviewed. The absence/presence of FAI (cam, pincer, and mixed) was noted. GTPS diagnosis was based on gluteus medius/minimus tendinopathy/tears, trochanteric bursitis, fascia lata thickening, and trochanter bone oedema/erosion...
December 9, 2016: La Radiologia Medica
https://www.readbyqxmd.com/read/27934555/does-installation-of-the-backstroke-start-device-reduce-15-m-start-time-in-swimming
#16
Yusuke Ikeda, Hiroshi Ichikawa, Rio Nara, Yasuhiro Baba, Yoshimitsu Shimoyama
The purpose of this study was to determine the installation of the backstroke start device reduces 15-m time. Thirteen college swimmers participated in this study. The aerial start and underwater motions were recorded with two digital video cameras. The center of mass (CM) of the swimmer, angular displacements and velocities of the shoulder, hip and knee joints were calculated. As an indicator of performance, the 5- and 15-m times were measured. The 5- and 15-m times in the backstroke start device condition were significantly shorter than in the non-backstroke start device condition...
January 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27924380/adherence-to-the-2006-american-heart-association-s-diet-and-lifestyle-recommendations-for-cardiovascular-disease-risk-reduction-is-associated-with-bone-mineral-density-in-older-chinese
#17
G D Chen, D Ding, H Y Tian, Y Y Zhu, W T Cao, C Wang, Y M Chen
: This cross-sectional study investigated the association between the modified 2006 American Heart Association Diet and Lifestyle Recommendations (AHA-DLR) and bone mineral density in Chinese adults. We found that better adherence to the AHA-DLR associated with higher bone mineral density (BMD) at multiple sites. INTRODUCTION: Accumulating evidence shows that cardiovascular disease (CVD) and osteoporosis are associated with each other, yet little research has focused on whether strategies to reduce CVD risk could also benefit bone health...
December 6, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27923531/apophysitis-of-the-greater-trochanter-in-adolescent-athletes-a-report-of-4-cases
#18
Yuka Kimura, Eiichi Tsuda, Yuji Yamamoto, Takuya Naraoka, Yasuyuki Ishibashi
No abstract text is available yet for this article.
December 3, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27904220/pfna-ii-protrusion-over-the-greater-trochanter-in-the-asian-population-used-in-proximal-femoral-fractures
#19
Sun-Jun Hu, Shi-Min Chang, Zhuo Ma, Shou-Chao Du, Liang-Ping Xiong, Xin Wang
BACKGROUND: The treatment of proximal femoral fractures in geriatric osteoporotic patients continues to be a challenge in orthopaedic trauma. Various kinds of cephalomedullary nails, such as gamma nail, InterTan and PFNA were used clinically. The latest generation PFNA II, specially designed for Asian population, is commonly used for geriatric per-/intertrochanteric fractures. The aim of this study was to determine whether the current PFNA-II proximal segment length is suitable for the greater trochanter height, as assessed by postoperative radiograph measurements...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27903406/morphology-of-the-posteromedial-fragment-in-pertrochanteric-fractures-a-three-dimensional-computed-tomography-analysis
#20
Gaurav Sharma, Kiran Kumar Gn, Kavin Khatri, Ravijot Singh, Shivanand Gamanagatti, Vijay Sharma
BACKGROUND: In this study we describe the morphology of the posteromedial fragment in pertrochanteric fractures using 3D CT scans and answer two questions 1) Do differences exist between the 3D CT appearances of posteromedial fragments and the depictions made in the AO classification 2) Does the posteromedial fragment affect stability in pertrochanteric fractures, in terms of fracture collapse? METHODS: Preoperative CT scans of eight 31-A1 and fifty 31-A2 fractures were analysed...
November 17, 2016: Injury
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