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https://www.readbyqxmd.com/read/29929014/the-effect-of-coronal-decompensation-on-the-biomechanical-parameters-in-lower-limbs-in-adolescent-idiopathic-scoliosis
#1
István Márkus, Ádám Tibor Schlégl, Máté Burkus, Kristóf József, Bálint Niklai, Péter Than, Miklós Tunyogi-Csapó
STUDY HYPOTHESIS: We hypothesized that altered coronal balance in adolescent scoliosis leads to asymmetric stress on the lower limbs, with subsequent effects on bone maturation and later morphology. We aimed to assess the correlation between the biomechanical parameters of the lower limbs and coronal balance in idiopathic scoliosis. MATERIALS AND METHODS: In this study, EOS images of 280 patients and 56 controls were randomly selected from our clinics' database...
June 18, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29928561/the-leg-wound-of-king-philip-ii-of-macedonia
#2
Nicholas Brandmeir, Russell Payne, Elias Rizk, R Shane Tubbs, Juan Luis Arsuaga, Antonis Bartsiokas
Objective King Philip II, the father of Alexander the Great, suffered a penetrating wound to the leg from a spear that left him severely handicapped. His skeletal remains represent the first and only case of an injury from ancient Greece that can be directly compared to its historical record. The objective of the study was to confirm the identity of the male occupant of Royal Tomb I in Vergina, Greece as Philip II of Macedonia by providing new evidence based on anatomical dissection and correlation with the historical description of the wounds...
April 18, 2018: Curēus
https://www.readbyqxmd.com/read/29928078/distal-major-pedicle-of-sartorius-muscle-flap-anatomical-study-and-its-clinical-implications
#3
K N Manjunath, M S Venkatesh, Ashwini Shivaprasad
Background: Reconstruction of the popliteal region has limited option in terms of muscle flaps or myocutaneous flaps. Gastrocnemius muscle or the myocutaneous flaps are the option for majority of cases. However, reach of Gastrocnemius is limited if the wound is on the distal one-third thigh or the lateral aspect of knee region. Similarly, if the wound injures the muscle, then coverage becomes all the more difficult. Although inferiorly based fasciocutaneous flaps can cover the wound in case of bony injuries, muscle flaps are beneficial as they help in fracture healing...
January 2018: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29924802/reference-values-of-vessel-diameters-stenosis-prevalence-and-arterial-variations-of-the-lower-limb-arteries-in-a-male-population-sample-using-contrast-enhanced-mr-angiography
#4
Roberto Lorbeer, Andreas Grotz, Marcus Dörr, Henry Völzke, Wolfgang Lieb, Jens-Peter Kühn, Birger Mensel
INTRODUCTION: Morphological characterization of leg arteries is of significant importance to detect vascular remodeling triggered by atherosclerotic changes. We determined reference values of vessel diameters and assessed prevalence of stenosis and arterial variations of the lower limb arteries in a healthy male population sample. METHODS: Gadolinium-enhanced magnetic resonance angiography at 1.5 Tesla was performed in 756 male participants (median age = 52 years, range = 21-82 years) of the population-based Study of Health in Pomerania...
2018: PloS One
https://www.readbyqxmd.com/read/29924774/-contrast-enhanced-ultrasonographic-study-in-patients-with-lower-limb-arterial-lesions
#5
I E Timina, N N Askerova, G G Karmazanovskiĭ, I I Piatkova, A E Zotikov
BACKGROUND: The introduction into clinical practice of contrast-enhanced ultrasonographic examination made it possible to assess patency of tibial arteries and perfusion of crural muscles in patients with occlusive lesions of lower-limb arteries. These findings are important for planning optimal treatment policy and assessing efficacy of operative or medicamentous treatment. OBJECTIVE: The study was aimed at investigating a possibility of contrast-enhanced ultrasound examination for assessment of patency of tibial arteries and quantitative assessment of perfusion of crural muscles in patient with occlusive lesions of lower-limb arteries...
2018: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29923985/tarsal-tunnel-syndrome-caused-by-an-uncommon-ossicle-of-the-talus-a-case-report
#6
Chang Hwa Hong, Young Koo Lee, Sung Hun Won, Dhong Won Lee, Sang Il Moon, Woo Jong Kim
RATIONALE: Tarsal tunnel syndrome (TTS) is a compressive neuropathy of the posterior tibial nerve or one of its branches within the tarsal tunnel that is often caused by a variety of space-occupying lesions, such as ganglia, lipomas, varicosities, neural tumors, trauma, or systemic disease. The os sustentaculi is a small accessory bone, bridged to the posterior aspect of the sustentaculum tali by fibrocartilage. To the best of our knowledge, this is a rare case of successful treatment of TTS caused by the os sustantaculi...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29922706/soy-protein-improves-tibial-whole-bone-and-tissue-level-biomechanical-properties-in-ovariectomized-and-ovary-intact-low-fit-female-rats
#7
Pamela S Hinton, Laura C Ortinau, Rebecca K Dirkes, Emily L Shaw, Matthew W Richard, Terese Z Zidon, Steven L Britton, Lauren G Koch, Victoria J Vieira-Potter
Background: Osteoporosis and related fractures, decreased physical activity, and metabolic dysfunction are serious health concerns for postmenopausal women. Soy protein might counter the negative effects of menopause on bone and metabolic health due to the additive or synergistic effects of its bioactive components. Objective: To evaluate the effects of ovariectomy (OVX) and a soy-protein diet (SOY) on bone outcomes in female, low-capacity running (LCR) rats selectively bred for low aerobic fitness as a model of menopause...
June 2018: Bone Reports
https://www.readbyqxmd.com/read/29922552/perforator-propeller-flaps-for-the-coverage-of-middle-and-distal-leg-soft-tissue-defects
#8
Mauricio Mendieta, Rodrigo Cabrera, Armando Siu, Roderick Altamirano, Sandra Gutierrez
Background: Local propeller flaps preserve the main vascular arteries of the lower extremity and muscle function, avoiding the need for a microsurgical anastomosis and the benefit of providing a "like with like" coverage. Our goal in this study was to demonstrate the versatility, safety, and complications of the local propeller flaps for lower extremity reconstruction. Methods: We present a series of 28 patients in whom we used local propeller flaps to restore small-to-medium soft-tissue defects of the lower limb in different hospitals of Managua, Nicaragua...
May 2018: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29922440/optimal-interference-of-the-tibial-component-of-the-cementless-oxford-unicompartmental-knee-replacement
#9
S Campi, S J Mellon, D Ridley, B Foulke, C A F Dodd, H G Pandit, D W Murray
Objectives: The primary stability of the cementless Oxford Unicompartmental Knee Replacement (OUKR) relies on interference fit (or press fit). Insufficient interference may cause implant loosening, whilst excessive interference could cause bone damage and fracture.The aim of this study was to identify the optimal interference fit by measuring the force required to seat the tibial component of the cementless OUKR (push-in force) and the force required to remove the component (pull-out force)...
March 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29922052/evaluation-of-central-and-peripheral-neuropathy-in-patients-with-chronic-obstructive-pulmonary-disease
#10
Yeşim Güzey Aras, Yusuf Aydemir, Belma Doğan Güngen, Adil Can Güngen
Background: The aim of the study was to investigate the frequency and characteristics of peripheral nervous system (PNS) and central nervous system (CNS) involvement in COPD. Methods: The study included 41 COPD patients and 41 healthy volunteers. Electrophysiological studies were carried out: electromyography (EMG) and visual evoked potentials (VEPs). The median nerve, ulnar nerve, common peroneal nerve, and tibial nerve were evaluated for latency, amplitude, and conduction velocity...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29920923/effects-of-elastic-intramedullary-nails-composed-of-low-young-s-modulus-ti-nb-sn-alloy-on-healing-of-tibial-osteotomies-in-rabbits
#11
Atsushi Kogure, Yu Mori, Hidetatsu Tanaka, Masayuki Kamimura, Naoya Masahashi, Shuji Hanada, Eiji Itoi
Intramedullary nailing is widely performed for internal fixation of fractures. The applicable elasticity of materials composing intramedullary nails remains unclear. The present study aimed to evaluate the effects of the elastic property of β-type titanium alloy nails on fracture healing compared with conventional Ti-6Al-4V alloy nails using a rabbit tibial osteotomy model. Two types of intramedullary nails composed of β-type Ti-Nb-Sn alloy (Young's modulus: 37 GPa) or Ti-6Al-4V alloy (Young's modulus: 110 GPa) were used for osteotomy fixation in the tibiae of rabbits...
June 19, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29920593/radial-artery-fascial-flow-through-free-flap-for-complex-cerebral-revascularization-technical-notes-and-long-term-neurologic-and-radiographic-outcomes
#12
Robert C Rennert, Kristine Ravina, Ben A Strickland, Joshua Bakhsheshian, Joseph Carey, Jonathan J Russin
BACKGROUND: Surgical innovation is critical for the management of challenging cerebrovascular pathology. Flow-through free flaps are versatile composite grafts that combine viable tissue with a revascularization source. Neurosurgical experience with these flaps is limited. OBJECTIVE: To provide an in-depth technical description of the radial artery fascial (and fasciocutaneous) flow-through free flap (RAFF and RAFCF, respectively) for complex cerebral revascularizations...
June 16, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29920524/use-of-a-platelet-rich-plasma-collagen-scaffold-as-a-bioenhanced-repair-treatment-for-management-of-partial-cruciate-ligament-rupture-in-dogs
#13
Susannah J Sample, Molly A Racette, Eric C Hans, Nicola J Volstad, Susan L Schaefer, Jason A Bleedorn, Jeffrey P Little, Kenneth R Waller, Zhengling Hao, Walter F Block, Peter Muir
Dogs are commonly affected with cruciate ligament rupture (CR) and associated osteoarthritis (OA), and frequently develop a second contralateral CR. Platelet rich plasma (PRP) is a component of whole blood that contains numerous growth factors, which in combination with a collagen scaffold may act to promote bioenhanced primary repair of ligament. This study tested the hypothesis that treatment of partial stable CR stifles with an intra-articular collagen scaffold and PRP would decrease the disease progression, synovitis and risk of complete CR over a 12-month study period...
2018: PloS One
https://www.readbyqxmd.com/read/29920194/neglected-tibial-pilon-fractures-can-arthrodesis-be-avoided
#14
Abdel-Salam A Ahmed, Mohammed S Singer, Hossam A El Bigawi
OBJECTIVES: To evaluate the outcomes of neglected pilon fractures treated by the Ilizarov fixator and to determine whether this technique was successful in avoiding an ankle arthrodesis. DESIGN: Retrospective case series. SETTING: Level I university trauma center. PATIENTS: Between January 2003 and March 2015, 18 patients (mean age of 42.17 years) with an untreated pilon fracture with late presentation (>1 month) were evaluated...
July 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29920192/costs-and-complications-of-single-stage-fixation-versus-2-stage-treatment-of-select-bicondylar-tibial-plateau-fractures
#15
Walter W Virkus, Jesse Caballero, Laurence B Kempton, Matthew Cavallero, Rich Rosales, Greg E Gaski
OBJECTIVES: To determine the differences in costs and complications in patients with bicondylar tibial plateau (BTP) fractures treated with 1-stage definitive fixation compared with 2-stage fixation after initial spanning external fixation. DESIGN: Retrospective cohort study. SETTING: Level 1 Trauma Center. PATIENTS/PARTICIPANTS: Patients with OTA/AO 41-C (Schatzker 6) BTP fractures treated with open reduction internal fixation...
July 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29917265/multi-objective-design-optimization-of-high-tibial-osteotomy-for-improvement-of-biomechanical-effect-by-using-finite-element-analysis
#16
Yong-Gon Koh, Juhyun Son, Ho-Joong Kim, Sae Kwang Kwon, Oh-Ryong Kwon, Hyo Jeong Kim, Kyoung-Tak Kang
Medial opening wedge high tibial osteotomy (HTO) makes the proximal tibia a highly unstable structure and causes plates and screws to be the potential sources for mechanical failure. However, asymmetrical callus and incomplete bone formations underneath the plates (TomoFix) have been recent concerns in clinical and experimental studies related to HTO due to the high stiffness. The purpose of this study was to evaluate the biomechanical effect of the TomoFix plate system with respect to changes in design using a computational simulation...
June 19, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29916931/surgically-relevant-patterns-in-triplane-fractures-a-mapping-study
#17
Matthew J Hadad, Brian T Sullivan, Paul D Sponseller
BACKGROUND: Triplane ankle fractures are complex transitional fractures that often necessitate surgical treatment. Axial fracture lines determine optimal screw trajectories for fixation. The purpose of our study was to identify fracture patterns in triplane fractures by illustrating fracture lines in the axial plane of the distal tibial metaphysis and epiphysis. METHODS: We retrospectively reviewed records of children presenting with ankle fractures at 1 center from January 2007 through June 2017...
June 20, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29916926/casting-is-effective-for-recurrence-following-ponseti-treatment-of-clubfoot
#18
Veroniek M van Praag, Magdalena Lysenko, Barbara Harvey, Rosanna Yankanah, James G Wright
BACKGROUND: Up to 40% of patients with idiopathic clubfoot who are treated with the Ponseti method experience recurrence of deformity. Many of these patients receive surgery (e.g., anterior tibial tendon transfer). An alternative approach for recurrent clubfoot is repeat Ponseti casting. The purpose of this study was to evaluate the outcome of repeat Ponseti casting in the treatment of recurrent clubfoot. METHODS: Patients with recurrent idiopathic clubfoot who were treated at our hospital, between 2004 and 2012, with repeat serial casting and bracing (the recurrent group) were eligible for inclusion in the study...
June 20, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29916925/one-stage-revision-anterior-cruciate-ligament-reconstruction-results-according-to-preoperative-bone-tunnel-diameter-five-to-fifteen-year-follow-up
#19
Kyoung Ho Yoon, Jung Suk Kim, Soo Yeon Park, Sang Eon Park
BACKGROUND: Bone tunnel enlargement is one of the important factors that determine whether a revision anterior cruciate ligament reconstruction (ACLR) should be performed in 1 or 2 stages. The goal of this retrospective cohort study was to compare the mid-term to long-term outcomes of 1-stage revision ACLR according to the amount of preoperative tunnel enlargement. METHODS: Between January 2002 and January 2012, 88 patients who underwent revision ACLR were enrolled...
June 20, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29916553/regulatory-effects-of-microrna%C3%A2-184-on-osteosarcoma-via-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway
#20
Zhenguang Du, Fusheng Li, Liangliang Wang, Hai Huang, Shaonian Xu
The present study aimed to investigate the role of microRNA (miRNA/miR)‑184 in osteosarcoma growth, development and metastasis, and the effects of miRNA‑184 on the proliferation, invasion and metastasis of osteosarcoma cells and associated mechanisms. In vitro, miR‑184 was transfected into U‑2OS cells and 143B cells. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was used to detect the expression of miR‑184. MTT was utilized to detect cell proliferation. A Transwell assay was applied to detect cell invasiveness...
June 18, 2018: Molecular Medicine Reports
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