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https://www.readbyqxmd.com/read/29150174/a-new-species-of-discocyrtanus-from-mato-grosso-brazil-opiliones-gonyleptidae-with-a-key-to-the-species-of-the-genus
#1
Rafael N Carvalho, Adriano B Kury
Discocyrtanus canjinjim sp. n., belonging to the family Gonyleptidae Sundevall, 1833 is described based on nineteen specimens, eleven adult males and eight adult females, collected in the Vila Bela da Santíssima Trindade, in the State of Mato Grosso, Brazil. This new species represents an endemic component for the harvestmen fauna of Chiquitano Dry Forests terrestrial eco-region, being the most occidental point of distribution of the genus, notably found in the Cerrado and the Atlantic Forest. The new species is characterized by femur IV swollen with the same length of dorsal scutum, trochanter IV with prodorsal distal apophysis as a stout hook not bifurcated, and a unique form of genitalia in the genus...
November 14, 2017: Comptes Rendus Biologies
https://www.readbyqxmd.com/read/29145961/vertical-femoral-neck-fractures-in-young-adults-a-closed-fixation-strategy-using-a-transverse-cancellous-lag-screw
#2
João Antonio Matheus Guimarães, Leonardo Rosa Rocha, Tito Henrique Noronha Rocha, Danielle Cabral Bonfim, Rafaela Sartore da Costa, Amanda Dos Santos Cavalcanti, Carlos Rodrigo Roesler, Jamila Alessandra Perini Machado, Diego Pinheiro Aguiar, Maria Eugenia Leite Duarte
Vertical femoral neck fractures (Pauwels type III classification) in young adults generally occur as a consequence of high-energy trauma and are frequently seen in association with multiple injuries. Considering the controversies regarding the optimal fixation for this fracture, our aim was to evaluate the clinical outcome of a closed fixation strategy for vertical femoral neck fractures in young adults using two parallel and one transverse cancellous lag screws. This was a single-surgeon, prospective study including 20 young adults with average age of 38...
October 2017: Injury
https://www.readbyqxmd.com/read/29145330/pathologic-femoral-fracture-due-to-tenofovir-induced-fanconi-syndrome-in-patient-with-chronic-hepatitis-b-a-case-report
#3
You-Sung Suh, Dong-Il Chun, Sung-Woo Choi, Hwan-Woong Lee, Jae-Hwi Nho, Soon-Hyo Kwon, Jae-Ho Cho, Sung Hun Won
RATIONALE: We report a case of a hepatitis B virus (HBV)-positive patient with preexisting bone disease who developed tenofovir-induced Fanconi syndrome and subsequently sustained pathologic fracture. To our best knowledge, this is the first report in the English literature about pathologic femoral fracture due to tenofovir-induced Fanconi syndrome in patient with chronic hepatitis B (CHB). The present report describes detailed our experience with the diagnosis of pathologic femoral fracture due to tenofovir-induced Fanconi syndrome and treatment...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143781/biological-properties-of-low-toxic-plga-and-plga-phb-fibrous-nanocomposite-scaffolds-for-osseous-tissue-regeneration-evaluation-of-potential-bioactivity
#4
Boguslawa Żywicka, Izabella Krucińska, Jerzy Garcarek, Maria Szymonowicz, Agnieszka Komisarczyk, Zbigniew Rybak
Abstracts: The aim of the study was to evaluate the biocompatibility and bioactivity of two new prototype implants for bone tissue regeneration made from biodegradable fibrous materials. The first is a newly developed poly(l-lactide-co-glycolide), (PLGA), and the second is a blend of PLGA with synthetic poly([R,S]-3-hydroxybutyrate) (PLGA/PHB). The implant prototypes comprise PLGA or PLGA/PHB nonwoven fabrics with designed pore structures to create the best conditions for cell proliferation. The bioactivity of the proposed implants was enhanced by introducing a hydroxyapatite material and a biologically active agent, namely, growth factor IGF1, encapsulated in calcium alginate microspheres...
October 28, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29141360/-total-hip-arthroplasty-in-patients-with-psoriatic-arthritis
#5
Y Li, X S Weng, J Lin, J Jin, W W Qian
Objective: To evaluate the clinical efficacy of Total hip arthroplasty (THA) in treating the hip joint involvement of Psoriatic arthritis (PsA). Methods: From January 2005 to December 2016, a total of 15 PsA patients (20 hip joints) underwent THA in Department of Orthopaedics, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. All the patients had obvious restriction in daily life before operation. The mean Harris score was 25.2 averagely and the mean total range of the hip joint movement was 39...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29139158/macro-anatomical-and-morphometric-studies-of-the-hindlimb-of-grasscutter-thryonomys-swinderianus-temminck-1827
#6
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/29138040/ultrasound-finding-of-ischiofemoral-impingement-syndrome-and-novel-treatment-with-botulinum-toxin-chemodenervation-a-case-report
#7
Yin-Ting Chen, Keyonna M Jenkins
Ischiofemoral impingement syndrome (IFIS) is a rare and poorly understood condition that leads to deep gluteal pain, groin, and/or medial thigh pain. It has unique diagnostic challenges, with limited non-operative treatment options. It is caused by the impingement of the quadratus femoris by the lesser trochanter and the ischium. Currently there are no validated physical examination maneuvers for IFIS, and the value of ischiofemoral interval for establishing IFIS is also uncertain. Ultrasound-guided corticosteroid injections have been reported...
November 11, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29137901/impact-of-femoral-stem-design-on-failure-after-anterior-approach-total-hip-arthroplasty
#8
Krishna R Cidambi, Steven L Barnett, Paige R Mallette, Jay J Patel, Nader A Nassif, Robert S Gorab
BACKGROUND: An increased rate of complications related to femoral component failure has been described with less invasive total hip arthroplasty (THA). This study evaluated the incidence of femoral complications associated with the direct anterior approach for THA. METHODS: Retrospective review was performed of the initial 1120 consecutive patients who underwent direct anterior THA by 2 surgeons. RESULTS: A total of 899 patients (80.3%) had a 2-year follow-up (range, 2-8 years)...
November 11, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29105095/minimally-invasive-technique-for-coxofemoral-luxation-stabilisation-using-transarticular-toggle-system-a-cadaveric-study
#9
U Segal, J Shani, R Joseph
OBJECTIVE: To present a novel, semi-closed, surgical technique for coxofemoral luxation stabilisation using a transarticular toggle rod. STUDY DESIGN: Cadaveric study. MATERIALS AND METHODS: Craniodorsal luxation was generated by transecting the ligamentum teres in 12 coxofemoral joints and was then reduced using a closed technique. Anteversion and inclination angles were measured using fluoroscopic projections. An arthroscope was inserted through a bone tunnel drilled from the third trochanter through the femoral neck...
November 3, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29102044/sliding-hip-screw-versus-intramedullary-nail-for-trochanteric-hip-fractures-a-randomised-trial-of-1000-patients-with-presentation-of-results-related-to-fracture-stability
#10
Martyn J Parker
AIMS: To determine the optimum choice of implant for a patient with a the different types of trochanteric hip fracture. PATIENTS AND METHODS: 1000 patients with a trochanteric hip fracture were randomised to internal fixation of the fracture with either a Sliding Hip Screw or an intramedullary nail. Fractures were subdivided into two part fractures, comminuted fractures and fractures at the level of the lesser trochanter (reversed/oblique and transverse). Functional assessment for up to one year from injury was undertaken by a research nurse blinded to the treatment allocation...
October 20, 2017: Injury
https://www.readbyqxmd.com/read/29076324/innovation-in-the-planning-of-v-y-rotation-advancement-flaps-a-template-for-flap-design
#11
Utku C Dölen, Uğur Koçer
Local flaps exhibit excellent color matching that no other type of flap can compete with. Moreover, surgery using a local flap is easier and faster than surgery using a distant or free flap. However, local flaps can be much more difficult to design. We designed 2 templates to plan a V-Y rotation advancement flap. The template for a unilateral V-Y rotation advancement flap was used on the face (n=5), anterior tibia (n=1), posterior axilla (n=1), ischium (n=1), and trochanter (n=2). The template for a bilateral flap was used on the sacrum (n=8), arm (n=1), and anterior tibia (n=1)...
October 27, 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29062663/free-neurovascular-latissimus-dorsi-muscle-transplantation-for-reconstruction-of-hip-abductors
#12
Sergi Barrera-Ochoa, Jose Manuel Collado-Delfa, Andrea Sallent, Alejandro Lluch, Roberto Velez
Resection of tumors affecting the hip abductors can cause significant decrease in muscle strength and may lead to abnormal gait and poor function. We present a case report showing full functional recovery after resection of a synovial sarcoma affecting the right gluteus medius and minimus muscles with reconstruction free neurovascular latissimus dorsi muscle transplantation. The latissimus dorsi muscle was harvested following standard technique and fixed to the ilium and the greater trochanter. Receptor vessels were end-to-end anastomosed to the subscapular vessels followed by an end-to-end epineural suture between the superior gluteal nerve and the thoracodorsal nerve...
September 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29060196/the-use-of-shear-thickening-polymer-as-a-hip-protecter
#13
Taeyong Lee, Dong-Gyu Hwang, Naomichi Ogihara, Kohta Ito
External hip protectors are used by the elderly in preventing hip fracture due to sideway falls. There are some commercial hip protectors which has both energy absorbing and energy shunting properties. In this study, a novel hip protector using shear thickening polymer (STP) is studied. The purpose of this work is to determine the optimal thickness of STP needed for maximum force attenuation. A mechanical test rig to simulate a person falling with sufficient impact energy to fracture the greater trochanter if unprotected was used together with biofidelic femur model which simulates the layer of flesh with skin...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058079/extended-trochanteric-osteotomy-eto-fixation-for-femoral-stem-revision-in-periprosthetic-fractures-dall-miles-plate-versus-cables
#14
Gerard A Sheridan, Adam Galbraith, Stephen R Kearns, William Curtin, Colin G Murphy
BACKGROUND: Extended trochanteric osteotomy (ETO) is a well-established surgical technique used for femoral stem retrieval in revision hip arthroplasty procedures. Fixation of ETO is commonly achieved through wire, cable or cable-plate fixation. No evidence exists to date to suggest which method is superior when used in an acute traumatic setting. METHODS: Thirty cases of acute periprosthetic fracture requiring femoral stem revision with an ETO were identified over a 10-year period...
October 20, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29053542/biomechanical-comparison-of-intrapelvic-and-extrapelvic-fixation-for-acetabular-fractures-involving-the-quadrilateral-plate
#15
Gregory J Gillispie, Sharon N Babcock, Kyle P McNamara, Michaela E Dimoff, Arun Aneja, Philip J Brown, Eben A Carroll
OBJECTIVES: Elderly patients represent the fastest growing and most difficult to treat population sustaining acetabular fractures. When treated surgically, isolated extrapelvic or combined intrapelvic-extrapelvic constructs may be used. No biomechanical or clinical study has compared the merits of these 2 techniques in cadaveric models. This research aims to biomechanically quantify the additional benefit of intrapelvic fixation to a standard extrapelvic fixation construct. METHODS: Ten cadaveric pelves underwent standardized anterior column and quadrilateral plate fracture creation...
November 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29051875/undisplaced-intraoperative-fracture-presenting-as-early-dislocation-with-tapered-wedge-stems-in-total-hip-arthroplasty-case-series-and-review-of-literature
#16
A V Gurava Reddy, Krishna Kiran Eachempati, Aakash Mugalur, A Suchinder, V B N Prasad Rao, Nalanda Kamurukuru
INTRODUCTION: Periprosthetic fractures and dislocation in the early post-operative period can be disastrous both for the surgeon and the patient. However, undisplaced periprosthetic fractures presenting with dislocation is uncommon. We describe successful management of two cases (one bilateral dislocation and one unilateral dislocation) of undisplaced iatrogenic fractures in total hip arthroplasty (THA) presenting as early dislocation. CASE REPORT: Case 1 was a 45-year-old female with osteoarthritis of hip secondary to developmental dysplasia of the hip with bilateral early nontraumatic dislocation with bilateral identical periprosthetic fracture...
May 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29044744/ontogenetic-variation-in-the-sensory-structures-on-the-pedipalps-of-cosmetid-harvestmen-arachnida-opiliones-laniatores
#17
Victor R Townsend, Bruce P Enzmann
In arachnids, pedipalps are highly variable appendages that may be used in feeding, courtship, defense, and agonistic encounters. In cosmetid harvestmen, adults have pedipalps that feature flattened femora, spoon-shaped tibiae, and robust tarsal claws. In contrast, the pedipalps of nymphs are elongate with cylindrical podomeres and are adorned with delicate pretarsi. In this study, we used scanning electron microscopy to examine the distribution of cuticular structures (e.g., sensilla chaetica, pores) on the elements of the pedipalps of adults and nymphs of three species of cosmetid harvestmen...
October 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29029596/additional-visualization-via-smart-glasses-improves-accuracy-of-wire-insertion-in-fracture-surgery
#18
Masanori Tsubosaka, Takafumi Hiranaka, Kenjiro Okimura, Yuta Nakanishi, Yosaku Shibata, Yuichi Hida, Takaaki Fujishiro, Harunobu Uemoto
BACKGROUND: Smart glasses (SG) are a wearable device consisting of a small computer built into a head-mounted monitor (HMM) that can display various kinds of information. Lateral side visualization is displayed on the HMM of SG so the operator may also see it and the anteroposterior (AP) direction simultaneously. The present pilot study aimed to investigate the usefulness of SG in wire insertion for bone fracture. METHODS: We marked both the front and lateral sides of the shaft of an artificial femur bone...
October 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/29024413/deep-tissue-loads-in-the-seated-buttocks-on-an-off-loading-wheelchair-cushion-versus-air-cell-based-and-foam-cushions-finite-element-studies
#19
Lea Peko Cohen, Amit Gefen
For wheelchair users, a common injury is a sitting-acquired pressure ulcer (PU) which typically onsets near the interface between the ischial tuberosity (IT) and the overlying soft tissues. The risk of developing PUs can be reduced considerably if an adequate cushion is placed on the wheelchair in order to protect tissues from PUs by minimising interface mechanical loads between the body and cushion and also, exposure to internal soft tissue loads. In this work, we studied the biomechanical performances of an off-loading (OL) cushion with limited adjustability, in comparison to a standard foam cushion and a fully adjustable air-cell-based (ACB) cushion...
September 6, 2017: International Wound Journal
https://www.readbyqxmd.com/read/29024045/association-between-dietary-fiber-intake-and-bone-loss-in-the-framingham-offspring-study
#20
Zhaoli Dai, Yuqing Zhang, Na Lu, David T Felson, Douglas P Kiel, Shivani Sahni
Dietary fiber may increase calcium absorption, but its role in bone mineralization is unclear. Furthermore, the health effect of dietary fiber may be different between sexes. We examined the association between dietary fiber (total fiber and fiber from cereal, fruits, vegetables, nuts, and legumes) and bone loss at the femoral neck, trochanter, and lumbar spine (L2 to L4 ) in older men and women. In the Framingham Offspring Study, at baseline (1996-2001), diet was assessed using the Willett food-frequency questionnaire, and bone mineral density (BMD) was measured using dual-energy X-ray absorptiometry...
October 12, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
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