bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary Clinical and Radiographic Results of Large Ceramic Heads on Highly Cross-Linked Polyethylene
Authors: Meftah Morteza , Ebrahimpour Prouskeh Bruce , He Chuan , Ranawat Amar S. , Ranawat Chitranjan S. 
Published: June 2011

Data are limited regarding large ceramic femoral heads with highly cross-linked polyethylene. We hypothesized that large ceramic head articulation with highly cross-linked polyethylene is safe with a low wear rate, comparable to metal-on-highly cross-linked polyethylene.
The study group comprised 63 patients (72 hips) who had undergone total hip replacement (THR) with ceramic-on-highly cross-linked polyethylene between April 2006 and March 2007 with a minimum 2-year follow-up. Postoperative Western Ontario and Mc-Master Universities Arthritis Index (WOMAC) and Hospital for Special Surgery (HSS) scores were used for clinical assessment. Six-week and 2-year radiographs were analyzed by 2 independent observers using Roman 1.70 software. Twenty-six patients (29 hips) had 32-mm and 37 patients (43 hips) had 36-mm Biolox delta ceramic femoral heads (Ceramtec, Plochingen, Germany). Mean patient age was 60.9±8.9 years, and mean follow-up was 2.9±0.5 years. Mean postoperative WOMAC and HSS hip scores were 30.4 and 36.6, respectively. Mean wear at 1 and 2 years postoperatively was 0.06±0.28 and 0.006±0.12 mm/yr for all hips, respectively. Mean wear at 1 and 2 years postoperatively for the 32-mm femoral head was 0.063±0.278 and 0.007±0.126 mm/yr, respectively, and for the 36-mm femoral head was 0.057±0.292 and 0.006±0.118 mm/yr, respectively. No patient had any clinical complications, such as reoperation, infection, fractures, or radiographic evidence of osteolysis or loosening. The early results of THR with large ceramic heads demonstrate high safety and efficacy. Our data with 2-year follow-up show low wear rates, similar to published data for metal-on-highly cross-linked polyethylene.
Fatigue Load of Current Tibial Intramedullary Nail Designs: A Simulated Study
Authors: Wagner Mark , Liu Qi , Ellis Thomas J. 
Published: June 2011

Comminuted tibial shaft fractures are traditionally treated with statically locked intramedullary nailing and protected weight bearing until fracture callous is evident. The purpose of this study was to demonstrate that a simulation of immediate full weight bearing following intramedullary nailing of these fractures does not result in implant failure.A comminuted fracture model was created using 2 pieces of polyvinyl chloride (PVC) pipe. Ten-millimeter-diameter tibial nails (Synthes, Paoli, Pennsylvania; Styker, Mahwah, New Jersey; Zimmer, Warsaw, Indiana; Smith & Nephew, Memphis, Tennessee) were inserted within the PVC pipe and secured proximally and distally with 2 or 3 locking bolts. The constructs were cycled in axial compression for 500,000 cycles or until implant failure. The tests were conducted using a modified staircase method (200 N per step), and the fatigue strength was identified for each of the tibial nail designs. When 2 interlocking bolts were placed proximally and distally, the fatigue strength was between 900 and 1100 N for the Stryker nail, 1100 and 1300 N for the Zimmer nail, 1200 and 1400 N for the Synthes nail, and 1400 and 1600 N for the Smith & Nephew nail. Adding a third interlocking bolt proximally and distally to the Smith & Nephew nail increased the fatigue strength by 13% to between 1700 and 1900 N. In all cases, implant failures occurred through the proximal or distal interlocking bolts.Biomechanical tests suggest that current tibial nail designs may permit immediate full weight bearing of comminuted tibial shaft fractures with minimal risk of implant failure. This may facilitate mobilization in the early postoperative period, especially in the multiply injured patient.
Posterior Spinal Fusion for Scoliosis in Ehlers-Danlos Syndrome, Kyphoscoliosis Type
Authors: Liu Yang , Gao Rui , Zhou Xuhui , Yuan Wen 
Published: June 2011

The Ehlers-Danlos syndromes comprise a clinically and genetically heterogeneous group of heritable connective tissue disorders characterized by articular hypermobility, skin extensibility, and tissue fragility. Surgical treatment of scoliosis associated with Ehlers-Danlos syndrome poses a challenge to spine surgeons because of the high risk of major complications. There is a paucity of evidence in the literature on surgical treatment for scoliosis in the Ehlers-Danlos syndrome patient.
This article describes 3 adolescent patients diagnosed with Ehlers-Danlos syndrome, kyphoscoliosis type, which was treated by posterior spinal fusion only. After unsuccessful conservative treatment for at least 1 year, the patients underwent posterior spinal surgery for the correction of spinal deformity. A satisfactory correction in the spinal curve was achieved, with no obvious loss of correction during follow-up. No intra- or postoperative major complications were observed.
Our experience supports that a satisfactory correction of scoliosis can be achieved by posterior spinal fusion only in patients with Ehlers-Danlos syndrome, kyphoscoliosis type.
Atypical Tibial Tuberosity Fracture in an Adolescent
Authors: Jalgaonkar Azal A. , Dachepalli Sunil , Al-Wattar Zaid , Rao Sudhir , Kochhar Tony 
Published: June 2011

Avulsion fractures of the tibial tuberosity are typically sustained by adolescent males during sporting activities. Tibial tuberosity avulsions with simultaneous proximal tibial epiphyseal fractures are rare injuries. We present an unusual case of Ogden type IIIA avulsion fracture of tibial tuberosity with a Salter Harris type IV posterior fracture of proximal tibial epiphysis in a 13-year-old boy. We believe that the patient sustained the tibial tuberosity avulsion during the take-off phase of a jump while playing basketball due to sudden violent contraction of the quadriceps as the knee was extending. This was then followed by the posterior Salter Harris type IV fracture of proximal tibial physis as he landed on his leg with enormous forces passing through the knee. Although standard radiographs were helpful in diagnosing the complex fracture pattern, precise configuration was only established by computed tomography (CT) scan. The scan also excluded well-recognized concomitant injuries including ligament and meniscal injuries. Unlike other reported cases, our patient did not have compartment syndrome. Anatomic reduction and stabilization with a partially threaded transepiphyseal cannulated screw and a metaphyseal screw followed by early mobilization ensured an excellent recovery by the patient.
Our case highlights the importance of vigilance and a high index of suspicion for coexisting fractures or soft tissue injuries when treating avulsion fractures of tibial tuberosity. A CT scan is justified in such patients to recognize complex fracture configurations, and surgical treatment should be directed appropriately to both the fractures followed by early rehabilitation. Patients with such injuries warrant close monitoring for compartment syndrome during the perioperative period.
Repair of Flexor Carpi Radialis Tendon Laceration at the Wrist in a Professional Ice Hockey Player
Authors: Hepper Clifford T. , Boyer Martin 
Published: June 2011

The flexor carpi radialis is a wrist flexor and radial deviator with half the relative strength of flexor carpi ulnaris. In the majority of patients, the flexor carpi radialis tendon is expendable and is routinely used for various reconstructive procedures about the hand and wrist. Isolated flexor carpi radialis lacerations at the wrist are rare. Flexor carpi radialis tendon ruptures, which have been reported in association with distal radius fractures, longstanding osteoarthritis, and percutaneous treatment of scaphoid fractures, are usually treated non-operatively. We report a case of a traumatic laceration of the flexor carpi radialis tendon at the wrist in a professional ice hockey player. Surgical repair and rehabilitation using established principles for intrasynovial flexor tendon repair allowed return to sport at the professional level in 2 months.
Tension-free core suture repair was performed with a modified-Kessler, 4-strand repair using a double-stranded 4-0 Supramid suture. A running epitendinous suture was then placed around the circumference of the tendon with 6-0 Prolene. Immobilization of the wrist in 20° of flexion was maintained for 2 weeks. Full active and passive digital motion was allowed immediately postoperatively and continued throughout the rehabilitation. Therapy was initiated at 2 weeks postoperatively with full passive wrist flexion and passive wrist extension to a dorsal block of 20°. At 4 weeks postoperatively, a dorsal splint was fabricated to keep the wrist in neutral. At this time, active extension to a dorsal block of zero and full passive flexion was allowed. Active wrist flexion without resistance was begun at 6 weeks, and full strengthening was allowed at 8 weeks postoperatively. The patient returned to sport at the professional level shortly thereafter. At latest follow-up, the patient has been able to fully participate in professional ice hockey without pain or functional limitation.
Maria del Guadaloupe Davidson, Kathryn T. Gines, and Donna-Dale L. Marcano (eds), Convergences: Black Feminism and Philosophy
Authors: Jones Janine 
Published: June 2011

Review of Maria del Guadaloupe Davidson, Kathryn T. Gines, and Donna-Dale L. Marcano (eds), Convergences: Black Feminism and Philosophy (Albany: SUNY, 2010).
To Dream of Fanon: Reconstructing a Method for Thought by a Revolutionary Intellectual
Authors: Prabhu Anjali 
Published: June 2011

The half-century, which is the time that has elapsed since the publication of Wretched of the Earth, seems such a short period when one imagines its author in all his intellectual magnificence, his anguish, and the many details we all know of his short-lived reality. Dare one say, after the concept has long been declared “dead” that we imagine him as having been a live “author”? As I write this, the idea of various notable intellectuals and revolutionary movements could come to mind in order for them to serve as interesting comparisons as we discuss and remember Fanon, his analyses of the colonial aftermath, and his many predictions, both explicit and implicit. However, the “death” of the author is, in fact, as Barthes’ polemical essay showed, a premise that empowers the text in its full potentiality well beyond the deism by which the identity of the author becomes the authority. Here, the liberation of the text joins up the enunciation with its “content” so to speak, or in Barthes’ words, reveals how Fanon “made of his very life a work for which his book was a model.” It is from this idea that I wish to see Fanon as incomparable. The reason to do so does not stem from some esoteric form of admiration, but rather a conviction that Fanon’s narration itself is both indicative and exemplary of a process of thinking that, for me, remains unparalleled in theorizing the role of the intellectual. Such a conviction requires us to read beyond the content of Wretched and be “reborn” in the Barthesian sense as readers. In essence, it is to simply follow the way Fanon himself allows us to actually trace how he dreams of “the native” or “the people” and thus accomplishes an affective leap, arguably, more completely than any other intellectual. This reading is, thus, an invitation to dream – even momentarily – of Fanon.
Further Questions: A Way Out of the Present Philosophical Situation (via Foucault)
Authors: Lawlor Leonard 
Published: June 2011

Let us begin by assembling some signs of the present philosophical situation. On the one hand, the most important living French philosopher, Alain Badiou, calls for a “return to Plato,” despite the movement of anti-Platonism that dominated French and German thought in the 20th century. On the other hand, the present moment sees a resurgence of naturalism in philosophy in general (including and especially Anglophone analytic philosophy), despite the criticisms of naturalism that have appeared throughout the 20th century. Phenomenology seems to be at the center of both of these movements. On the one hand, it is the idea of a mathematized ontology that requires the return to Plato, a mathematized ontology constructed without a reflection on its transcendental grounds. On the other, the resurgence of naturalism is so strong that a book could be imagined and published with the bastard name of Naturalizing Phenomenology, as if the transcendental moment of phenomenology did not transform the very meaning of nature. These signs seem to indicate that we have entered into a phase of regression or even decline in philosophical thinking. If this interpretation of the signs is correct, if we have indeed entered into a phase of regression -- a twofold regression toward Platonism and toward naturalism -- we must ask the following question: is it possible for us to define something like a project or even a research agenda that would allow us to define a way of thinking that might lead us out of the present situation, a situation, it must be said, that seems dire for philosophy in general? If we can determine such a research agenda, perhaps we can also begin to understand what the tradition of “continental philosophy” has stood for.
Totality and Infinity, Alterity, and Relation: From Levinas to Glissant
Authors: Cailler Bernadette 
Published: June 2011

Totality and Infinity, the title of a well-known work by Emmanuel Levinas, takes up a word which readers of Poetic Intention and of many other texts of Édouard Glissant’s will easily recognize: a term sometimes used in a sense that is clearly positive, sometimes in a sense that is not quite as positive, such as when, for instance, he compares “totalizing Reason” to the “Montaigne’s tolerant relativism.” In his final collection of essays, Traité du tout-monde, Poétique IV, Glissant attempts one more time to clarify the sense in which the reader will have to understand his use of the word “totality,” thinking, and rightfully so, that this word might lead to some confusion: “To write is to say the world. The world as totality, which is so dangerously close to the totalitarian.” Of course, here, it will be necessary to try to ascertain whether or not Levinas’s totality and Glissant’s can peacefully coexist, or, rather, whether this word might, in Glissant, have opposite meanings. Where the second word is concerned, “infinity,” any reader of Glissant will know that he locates its source in those societies he calls atavistic, which are grounded in foundational texts that are the bearers of stories of filiation, of legitimacy, societies whose arrogance and whose errors the author never ceases to decry and whose decomposition, in the very times in which we live, he never ceases to announce (even as Glissant recognizes that there was a time when atavistic cultures undoubtedly must have experienced their own period of creolization, and that, conversely, composite cultures undoubtedly often tend to become atavistic). On this level, “totality” and “infinity,” for him, seem to belong to the same world. Thus, and still in Traité du tout-monde , he proposes that "Hebraism, Christianity, Islam are grounded in the same spirituality of the One and to the same belief in a revealed Truth… The thought of the One that has done so much to magnify, as well as to denature. How can one consent to this thought, which transfigures while neither offending nor de-routing the Diverse?" Moreover, it would be interesting, I think, to know how Levinas might react to these words of Glissant’s: “Totality is not that which has often been called the universal. It is the finite and realized quantity of the infinite detail of the real.” This word, “infinite,” is decidedly dangerous: what is an “infinite detail?” Does this word, “infinite,” not always lead to the unknown, to the non-totalizable, to what Levinas would call an “enigma,” to what Glissant would call an “opacity?”
Vascular Access Cannulation in Hemodialysis Patients – A Survey of Current Practice and its Relation to Dialysis dose
Authors: Gauly Adelheid , Parisotto Maria Teresa , Skinder Aleksandra , Schoder Volker , Furlan Andreja , Schuh Erika , Marcelli Daniele 
Published: June 2011

Purpose The appropriate use of vascular access is of fundamental importance in the treatment of hemodialysis (HD) patients. This survey entailed collecting data on current practice of vascular access cannulation to assess its relation to dialysis dose. Methods This international, multicenter, observational, cross-sectional survey was performed in 171 dialysis centers of the European dialysis network of Fresenius Medical Care in Europe and South Africa during April 2009. Practice patterns of vascular access cannulations were documented by means of a 24-item questionnaire. Dialysis dose from the documented hemodialysis treatments was derived from the clinical database EuCliD®. Results In total, 10,807 cannulations in hemodialysis patients with either arteriovenous fistula (91%) or arteriovenous graft (9%) were documented. For the puncture, the area technique was applied most frequently using 15G and 16G needles. Blood flow rates were mostly between 300 and 400 mL/min and adjusted to the needle size used. In two-thirds of cases the arterial needle was placed first, mostly in an antegrade direction, with an average distance to the venous needle of 7.0±3.7 cm. More than two-thirds of the cannulations were performed by nurses with more than 5 years of experience in dialysis. A logistic regression model revealed a significantly higher odds ratio to attain Kt/V ≥ 1.2 for retrograde placement of the arterial needle, and for using needles with bigger diameter. Conclusions This survey covered a broad number of countries and centers and provides information on current practice of vascular access cannulation, their effect on dialysis dose, and serves as feedback to the dialysis centers for their quality management process.
Electrical Impedance Spectroscopic Studies on Broiler Chicken Tissue Suitable for the Development of Practical Phantoms in Multifrequency EIT
Authors: Bera Tushar Kanti , Nagaraju J. 
Published: June 2011

Abstract
Phantoms are essential for assessing the system performance in Electrical Impedance Tomography (EIT). Saline phantoms with insulator inhomogeneity fail to mimic the physiological structure of real body tissue in several aspects. Saline or any other salt solution is purely resistive and hence studying multifrequency EIT systems cannot be assessed with saline phantoms because the response of the purely resistive materials do not change over frequency. Animal tissues show a variable response over a wide band of signal frequency due to their complex physiological and physiochemical structures and hence they can be suitably used as bathing medium and inhomogeneity in the phantoms of multifrequency EIT systems. An efficient assessment of a multifrequency EIT system with a real tissue phantom needs a prior knowledge of the impedance profile of the bathing medium as well as the inhomogeneity. In this direction Electrical Impedance Spectroscopy (EIS) studies on broiler chicken muscle tissue paste, muscle tissue blocks and fat tissue blocks are conducted over a wide range of signal frequency using impedance analyzers, and their impedance profiles are analyzed. Results show that the chicken muscle tissue paste is less resistive than the fat tissue and hence it can be used successfully as the bathing medium of the phantoms for impedance imaging in multifrequency EIT. Fat tissue is found more resistive than the muscle tissue which makes it more suitable for the inhomogeneity in phantoms of impedance imaging study. Moreover, as there is a large difference between the resistivities of muscle tissue and fat tissue they can be used as either inhomogeneity or background medium. EIS studies also show that the variations in the impedance parameters of a muscle tissue block are greater than in the tissue paste as the cell membrane structures are destroyed in tissue paste. Results also show that the α and β dispersions are visible in all the parameters of both the tissue samples, but both the dispersions are larger in the muscle tissue block. The Nyquist plot obtained for the muscle tissue block demonstrates that the equivalent electric model of the tissue sample contains Warburg impedance and a constant phase element.
Hindsight Bias: Self‐Flattery or Cognitive Error?
Authors: Connolly Terry , Bukszar Edward W. 
Published: June 2011

AbstractBoth motivational and cognitive accounts have been proposed for hindsight bias. In an experiment three groups of subjects analyzed a complex business case. One group received no outcome information. The other groups were told the outcome of the decisions made in the case. One group believed that the outcome they were given was real, the other saw the outcome generated by the toss of a coin. Both groups showed large and equal hindsight shifts on a post‐analysis questionnaire. This finding appears to weaken a self‐flattery explanation of hindsight shift, and gives support to a cognitive account.
Serotonin transporter binding after recovery from bulimia nervosa
Authors: Pichika Rama , Buchsbaum Monte S. , Bailer Ursula , Hoh Carl , DeCastro Alex , Buchsbaum Bradley R. , Kaye Walter 
Published: June 2011

AbstractObjective:Physiological and pharmacological studies indicate that altered brain serotonin (5‐HT) activity could contribute to a susceptibility to develop appetitive and behavioral alterations that are characteristic of bulimia nervosa (BN).Method:Eight individuals recovered from BN (REC BN) and eight healthy control women were scanned with [11C]DASB and positron emission tomography imaging of the 5‐HT transporter (5‐HTT). Logan graphical analysis was applied, and parametric binding potential (BPnondisplaceable (ND)) images were generated. Voxel‐by‐voxel t‐tests and a region of interest (ROI) analysis were conducted.Results:REC BN had significantly lower [11C]DASB BPND in midbrain, superior and inferior cingulate and significantly higher [11C]DASB BPND in anterior cingulate and superior temporal gyrus in the voxel‐based analysis. ROI analysis indicated lower [11C]DASB BPND in midbrain (p = .07), containing the dorsal raphe, in REC BN, consistent with our earlier studies.Discussion:These preliminary findings of a small‐scale study confirm and extend previous data suggesting that ill and recovered BN have altered 5‐HTT measures, which potentially contribute to BN symptomatology and/or differential responses to medication. © 2011 by Wiley Periodicals, Inc. (Int J Eat Disord 2012;)
Morphometric analysis of aeolian bedforms in the Namib Sand Sea using ASTER data
Authors: Bullard Joanna E. , White Kevin , Livingstone Ian 
Published: June 2011

ABSTRACTThe ASTER Global Digital Elevation Model (GDEM) has made elevation data at 30 m spatial resolution freely available, enabling reinvestigation of morphometric relationships derived from limited field data using much larger sample sizes. These data are used to analyse a range of morphometric relationships derived for dunes (between dune height, spacing, and equivalent sand thickness) in the Namib Sand Sea, which was chosen because there are a number of extant studies that could be used for comparison with the results. The relative accuracy of GDEM for capturing dune height and shape was tested against multiple individual ASTER DEM scenes and against field surveys, highlighting the smoothing of the dune crest and resultant underestimation of dune height, and the omission of the smallest dunes, because of the 30 m sampling of ASTER DEM products. It is demonstrated that morphometric relationships derived from GDEM data are broadly comparable with relationships derived by previous methods, across a range of different dune types. The data confirm patterns of dune height, spacing and equivalent sand thickness mapped previously in the Namib Sand Sea, but add new detail to these patterns. Copyright © 2011 John Wiley & Sons, Ltd.