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Taylor spatial frame

Suzuyo Ohashi, Kazuya Ikoma, Masamitsu Kido, Yoshinobu Oka, Wook-Cheol Kim, Toshikazu Kubo
No abstract text is available yet for this article.
February 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
Henrik Lundblad, Charlotte Karlsson-Thur, Gerald Q Maguire, Cathrine Jonsson, Marilyn E Noz, Michael P Zeleznik, Lars Weidenhielm
BACKGROUND: When a bone is broken for any reason, it is important for the orthopaedic surgeon to know how bone healing is progressing. There has been resurgence in the use of the fluoride ((18)F(-)) ion to evaluate various bone conditions. This has been made possible by availability of positron emission tomography (PET)/CT hybrid scanners together with cyclotrons. Absorbed on the bone surface from blood flow, (18)F(-) attaches to the osteoblasts in cancellous bone and acts as a pharmacokinetic agent, which reflects the local physiologic activity of bone...
February 1, 2017: Clinical Orthopaedics and related Research
Søren Kold
No abstract text is available yet for this article.
January 3, 2017: Clinical Orthopaedics and related Research
Stephanie W Mayer, Elizabeth W Hubbard, Dan Sun, Robert K Lark, Robert D Fitch
BACKGROUND: Blount disease is a disorder of the posteromedial proximal tibial physis which causes a progressive varus, procurvatum, and internal rotation deformity of the tibia. Untreated, it can cause significant limb malalignment. The goal of this study is to evaluate the results of correction of Blount disease using types of external fixation. METHODS: We conducted a retrospective review of 41 patients (51 limbs) who underwent correction of Blount disease with an Ilizarov external fixator or a Taylor spatial frame (TSF) by a single surgeon...
December 23, 2016: Journal of Pediatric Orthopedics
Eugen Reitenbach, Robert Rödl, Georg Gosheger, Björn Vogt, Frank Schiedel
OBJECTIVE: Distraction osteogenesis is a method of stimulating the growth of new bone tissue in order to lengthen the extremities or bridge resected bone defects. In addition to the now-established intramedullary procedures, two different fixator systems are in use. The present study investigated the classical Ilizarov ring fixator (IRF) and a hexapod to assess the precision of lower-leg lengthening and complications classified using the Paley criteria for problems, obstacles, and complications...
2016: SpringerPlus
Daniel J Henderson, Jeremy L Rushbrook, Paul J Harwood, Todd D Stewart
BACKGROUND: The Taylor Spatial Frame™ (TSF) is a versatile variant of the traditional Ilizarov circular fixator. Although in widespread use, little comparative data exist to quantify the biomechanical effect of substituting the tried-and-tested Ilizarov construct for the TSF hexapod system. QUESTIONS/PURPOSES: This study was designed to investigate the mechanical properties of the TSF system under physiologic loads, with and without the addition of a simulated bone model, with comparison to the standard Ilizarov frame...
November 28, 2016: Clinical Orthopaedics and related Research
Alexios Dimitrios Iliadis, Parag Kumar Jaiswal, Jay Meswania, Gordon Blunn, David Goodier, Peter Calder
A mechanical study investigating the use of two different methods (grub and bolt screws) to secure external fixation half pins to circular frames. A four part experiment: (1) Grub and bolt screws were used to secure half pins in Taylor Spatial frames. Loosening torques were measured using a calibrated torque wrench. (2) Using universal testing machine (UTM), axial loading was applied to establish thresholds for loosening in grub and bolt screw constructs. (3) We established the application torque to produce failure at the head-driver interface using these two methods...
November 2016: Strategies in Trauma and Limb Reconstruction
Ibrahim Elsayed Abdellatif Abuomira, Francesco Sala, Yasser Elbatrawy, Giovanni Lovisetti, Salvatore Alati, Dario Capitani
This retrospective review assesses 55 tibial nonunions with bone loss to compare union achieved with combined Ilizarov and Taylor spatial frames (I-TSF) versus a conventional circular frame with the standard Ilizarov procedure. Seventeen (31 %) of the 55 nonunions were infected. Thirty patients treated with I-TSF were compared with 25 patients treated with a conventional circular frame. In the I-TSF group, an average of 7.6 cm of bone was resected and the lengthening index (treatment time in months divided by lengthening amount in centimeters) was 1...
November 2016: Strategies in Trauma and Limb Reconstruction
A Reyyan Bilge, Holly A Taylor
The mental rotation literature commonly reports a sex difference, almost always favoring men. Two strategies have been proposed in the literature to account for this difference: holistic and piecemeal. However, there is great variability in rotation performance suggesting other possible contributing factors. This study investigated the effects of stimuli characteristics and habitual spatial thinking on mental rotation performance. In three experiments, participants completed a mental rotation task with two modifications: (1) 3-D figures were presented with their cut versions to promote piecemeal strategy, and (2) block figures were either presented within a frame or none, in light of reference framework model or perceptual grouping model...
September 6, 2016: Memory & Cognition
Thomas Christian, Reiko Sakaguchi, Agata P Perlinska, Georges Lahoud, Takuhiro Ito, Erika A Taylor, Shigeyuki Yokoyama, Joanna I Sulkowska, Ya-Ming Hou
Proteins with knotted configurations, in comparison with unknotted proteins, are restricted in conformational space. Little is known regarding whether knotted proteins have sufficient dynamics to communicate between spatially separated substrate-binding sites. TrmD is a bacterial methyltransferase that uses a knotted protein fold to catalyze methyl transfer from S-adenosyl methionine (AdoMet) to G37-tRNA. The product, m(1)G37-tRNA, is essential for life and maintains protein-synthesis reading frames. Using an integrated approach of structural, kinetic, and computational analysis, we show that the structurally constrained TrmD knot is required for its catalytic activity...
October 2016: Nature Structural & Molecular Biology
A Khunda, M Al-Maiyah, W G P Eardley, R Montgomery
We reviewed 40 complex tibial non-unions treated with Taylor Spatial Frames. 39 healed successfully. Using the ASAMI scoring, we obtained 33 excellent, 5 good, 1 fair and 1 poor bone results. The functional results were excellent in 29 patients, good in 8, fair in two and poor in one. Mean patient satisfaction score was 95%. All but one patient would have the same treatment again. 28 of the 36 patients in work when injured, returned to work at the time of their final review. Four patients had an adverse event requiring significant intervention...
December 2016: Journal of Orthopaedics
Alejandro Sanchez-Crespo, Frederik Christiansson, Charlotte Karlsson Thur, Henrik Lundblad, Anders Sundin
PURPOSE: The Taylor Spatial Frame (TSF) is used to correct orthopedic conditions such as correction osteotomies in delayed fracture healing and pseudarthrosis. Long-term TSF-treatments are common and may lead to complications. Current conventional radiological methods are often unsatisfactory for therapy monitoring. Hence, an imaging technique capable of quantifying bone healing progression would be advantageous. METHODS: A cohort of 24 patients with different orthopedic conditions, pseudarthrosis (n = 10), deformities subjected to correction osteotomy (n = 9), and fracture (n = 5) underwent dynamic [(18)F]-fluoride (Na(18)F) PET/CT at 8 weeks and 4 months, respectively, after application of a TSF...
March 2017: European Journal of Nuclear Medicine and Molecular Imaging
Lior Koren, Yaniv Keren, Mark Eidelman
BACKGROUND: Taylor Spatial Frame (TSF) is a modern circular external fixator that, using a virtual hinge, is able to correct six axis deformities simultaneously. Despite the growing popularity of this method, few reports exist about its use in children and adolescents. To evaluate the effectiveness of TSF in correcting multiplanar deformities in patients with open physis, we reviewed the results of treatment in children who had at least two planes deformities of lower limbs. METHODS: Over a period of 8 years, we treated 51 patients, 40 boys, 11 girls, with a mean age of 12...
2016: Open Orthopaedics Journal
Eugene Poh, Timothy J Carroll, Jordan A Taylor
Insights into the neural representation of motor learning can be obtained by investigating how learning transfers to novel task conditions. We recently demonstrated that visuomotor rotation learning transferred strongly between left and right limbs when the task was performed in a sagittal workspace, which afforded a consistent remapping for the two limbs in both extrinsic and joint-based coordinates. In contrast, transfer was absent when performed in horizontal workspace, where the extrinsically defined perturbation required conflicting joint-based remapping for the left and right limbs...
September 1, 2016: Journal of Neurophysiology
Andrew Hughes, Michael Parry, Nima Heidari, Mark Jackson, Roger Atkins, Fergal Monsell
We describe the intraoperative use of the Taylor Spatial Frame to correct complex multiplanar deformities of the tibia before definitive internal stabilization using minimally invasive techniques. Thirteen consecutive procedures were performed in 12 patients. All deformities of the tibia were assessed with standardized radiographs allowing estimation of the center of rotation of angulation (CORA) or multiple CORA for multiplanar deformities. The cause of the deformity included both posttraumatic and metabolic conditions...
July 2016: Journal of Orthopaedic Trauma
İsmail Levent Eralp, Mehmet Kocaoğlu, Göksel Dikmen, Mohsin E Azam, Halil İbrahim Balcı, F Erkal Bilen
OBJECTIVE: The purpose of this study was to summarize our clinical results with distraction osteogenesis for the treatment of infected tibial nonunion around the ankle joint. METHODS: Between 1994 and 2009, 13 patients with a mean age of 50 years (range: 27-79 years) underwent tibial reconstruction for the treatment of infected nonunion of the distal tibia, with a mean bone loss of 4.8 cm (range: 1-7 cm). Lengthening over an intramedullary nail as a second procedure was used in 2 patients, bifocal compression and distraction technique in 5 cases, compression with Ilizarov external fixator in 5 cases, and Taylor Spatial Frame (TSF, Smith Nephew, Memphis, TN, USA) in 1 case...
2016: Acta Orthopaedica et Traumatologica Turcica
Michael J Proulx, Orlin S Todorov, Amanda Taylor Aiken, Alexandra A de Sousa
Knowing who we are, and where we are, are two fundamental aspects of our physical and mental experience. Although the domains of spatial and social cognition are often studied independently, a few recent areas of scholarship have explored the interactions of place and self. This fits in with increasing evidence for embodied theories of cognition, where mental processes are grounded in action and perception. Who we are might be integrated with where we are, and impact how we move through space. Individuals vary in personality, navigational strategies, and numerous cognitive and social competencies...
2016: Frontiers in Psychology
Levent Eralp, F Erkal Bilen, S Robert Rozbruch, Mehmet Kocaoglu, Ahmed I Hammoudi
The mechanical features of and biologic response to using distraction osteogenesis with the circular external fixator are the unique aspects of Ilizarov's contribution that allows deformity correction and reconstruction of bone defects. We present a retrospective study of 20 patients who suffered from a variety of benign tumours for which external fixators (EF) were used to treat deformity, bone loss, and limb-length discrepancy. A total of 26 bony segments in twenty patients (10 males, 10 females; mean age 17 years; range 7-58 years) were treated with EF for residual problems from the tumour itself (primary treatment) in 8 patients and for complications related to the primary surgery (secondary treatment) in 12 patients...
April 2016: Strategies in Trauma and Limb Reconstruction
F Birkholtz, N Ferreira
Circular external fixators, and in particular hexapod circular external fixators, are increasingly being used in orthopaedic traumatology and limb reconstruction. Their ability to provide three dimensional stability throughout the treatment period make these external fixators indispensable in the management of complex reconstructive work. This study has identified a unique mode of failure with the use of Taylor Spatial Frame Fast-Fx struts and termed this complication catastrophic strut collapse. In this article a lab model is used to demonstrate the consequences of catastrophic strut collapse and warn users of the importance of using the ID bands and locking nuts to prevent inadvertent fragment displacement...
2016: Journal of Medical Engineering & Technology
Akihiko Takeuchi, Norio Yamamoto, Toshiharu Shirai, Hideji Nishida, Katsuhiro Hayashi, Koji Watanabe, Shinji Miwa, Hiroyuki Tsuchiya
BACKGROUND: In a previous report, we described a method of reconstruction using tumor-bearing autograft treated by liquid nitrogen for malignant bone tumor. Here we present the first case of bone deformity correction following a tumor-bearing frozen autograft via three-dimensional computerized reconstruction after multiple surgeries. CASE PRESENTATION: A 16-year-old female student presented with pain in the left lower leg and was diagnosed with a low-grade central tibial osteosarcoma...
December 7, 2015: BMC Surgery
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