1,720,985 research outputs found
10 years follow-up of 60 cleft lip patients treated for secondary nasal defects
No full textThe purpose is to evaluate the long term results of 60 of 180 patientstreated with an "Anatomical Balance" method of secondary nasal correction,which means detouch and dismount progressively the septum,the alar cartilages, the bone vault and finally the soft tissues for thenre-build and re-orient and, if necessary, graft the nose structure withautologous material (1-2). 60 patients treated from 1993 to 2002, 39mono and 21 bi-lateral, medium age 24.5 years. Our procedures weredirected to the nasal tip, preserving and re-orienting the nasal structureswith an open approach and applying a personal technique called BCRCC(3) (14% of the patients), re-modelling and re-positioning of the domes(90% of the cases). Cartilage and bone have been used as grafts in80% of our patients The follow-ups made on our 60 patients after 1 to10 years seem to support the results that guarantee a better shaping ofthe tip without the need of a second surgical time. No major immediateand long term complication was observed except columellar scars (4%Symmetry and nasal function improved in all our cases (98.9%). Overthe years the first surgical step in cleft li patients has been the correctionof the lip, and then the remaining structures (Salyer 1992, Chase 1983,Mulliken 1992). Finally we can conclude that the primary treatment isof the lip-nasal deformity (Gubisch 1995, Salyer 2004). The treatmentof secondary nasal defects with the "anatomical Balance" method givean improvement of the tip projection by means of various techniques,one of them to be known as the Bilateral Controlateral Rotation of theupper Cephalic segment of the lateral Crura (BCRCC) (Nocini et al 2001)avoiding further surgical treatments.References[1] J.B. Mulliken, M.D.: "Principles and Techniques of Bilateral Complete CleftLip Repair". Plast. Reconstr. Surg. Vol. 75, N O 4: 477-486, April 1985.[2] C. Cutting, et AI..: "Presurgical Columellar Elongation and Primary Retrogradenasal Reconstruction in One-Stage Bilateral Cleft lip and NoseRepair". Plast. Reconstr. Surg. Vol. 101, N O 3: 630-639, March 1998.[3] EF. Nocini, G.N. Trenite, D. Bertossi: 'q-he correction of the tip in cleftlip secondary rhinoplasty: bilateral controlateral rotation of the cephalicsegment of the lateral crura (BCRCC)". Face vol. 7 no1 pp 13-20 2001.4) Salyer KE, Genecov ER, Genecov DG. Unilateral cleft lip-nose repair -long-term outcome. Clin Plast Surg. 2004 Apr;31(2):191-208. Review
Reconstructive Surgery after Oncocological Treatment (2024) In R. Nocini, G. Molteni, S.A. Mocella, D. Bertossi (Eds.), The Nasal Setpoplasty (pp.211-225). Piccin, Padova, Italy.
Full text linkRemoval of components of the nasal septum for oncological causes is a frequent intervention. Reconstruction of the septum mainly consists in rebuilding the L-strut, which is the key to the structural support. The L-strut defect might be partial (more frequent) or total. External and internal lining have also to be rebuilt when missing. Lining reconstruction is fundamental to nourish the graft and to avoid post-operative complications. Considerations regarding immediate or delayed procedures have to be evaluated. There are many different types of grafts that can be harvested (septal cartilage and bone, costal cartilage and bone, auricular cartilage, cranial bone, radial bone). The graft used to rebuild the neo-septum has to be chosen according to the extent of the defect and to the surgeon’s experience
Pull up spreader graft to a tip support effect
No full textNasal airway obstruction can be associated to a deviated septum or nasal valve collapse with or without anatomical obstructions (polyps). Furthermore, the architectural defect can involve the aesthetics of the nasal dorsum and tip. The purpose of the Author is a new technique of simultaneous spreader grafting of the nasal vault and the rotation of the tip in the desired position. 10 patients affected by light (4) to severe (6) nasal obstruction were treated from 2001 to 2003 with a new technique of nasal spreading. This technique is performed with an open approach. The upper part of the lateral crus is splitted androtated medially and therefore inserted in a precise pocket between thenasal septum and the upper lateral. The cartilages are fixed pulling upthe nasal domes and tip with PDS 5-0. The dorsal part of the lateralcrus can be adjusted with a scalpel creating a supratip break and tipsupport. Also the spreading gives an anatomically related quantity ofcartilage and dorsal enlargement. There is no scarring and no need ofcartilage harvesting, all 10 patients had an improvement in nasal airway (scale 1 to 10), 6 patients with a clinical score of 7 and 4 patients with a clinical score of 10. Nobody complained for the open approach scarring and all had a good aesthetic result, with a stable upward rotation of the tip after 2 years. Nor displacement of the sutured cartilagen neither infections or hematoma was observed in 100% of patients, we propose a new technique of nasal spreading that cannot substitute the conventional use of dorsal spreaders, but can be an aid in cases of thi
Distraction Osteogenesis and orthodontic treatment
No full textSUMMARY
The purpose of this study was to compare the rate of orthodontic tooth movement into regenerated bone, created after mandibular Distraction Osteogenesis (DO), with the rate of orthodontic tooth movement in patients who had extractions. The Sample Group (treated subjects) was composed of 14 Class II patients (5 males and 9 females, mean age 25.0±1.1years) treated with a Distraction Osteogenesis appliance. to obtain orthodontic tooth movement in regenerated bone. The Control Group (extraction cases) was composed of 14 subjects (mean age 21.9±3.1 years). This Group was treated with extractions. Both groups were followed by conventional orthodontic treatment for space closure. Teeth movements (amount and rate) were evaluated by measuring the distance between the distal wing of the canine bracket and the mesial wing of the first or the second premolar bracket, depending on the group, using Vernier callipers (Dentaurum). Readings were noted every 2 weeks until space closure was completed. In this study the mean duration of the post-distraction orthodontic treatment was 12±0.3 months. Our study showed that the space created by distraction was closed in 10±1 months; while with conventional orthodontic treatment the average time to complete space closure was 5.90±.9 months. The average space closure was 6.50±0.10mm with conventional orthodontic treatment and 7.90 ±0.38 mm in the patients treated with DO. The mean rate of tooth movement was 1.27±0.23 mm/month in the group with conventional orthodontic treatment and 0.68±0.20mm/month in the group treated with DO. Unpaired t test showed a significant difference between tooth movement in the study sample and in the control group (p<.05). As suggested by most scientific literature, in our sample dental movement was started at the end of the consolidation phase. However, the rate of space closure in the distraction area was higher than with conventional orthodontic treatment. Undoubtedly, this approach can be used for the treatment of very severe skeletal malocclusions and maxillofacial deformities, but it cannot be considered an alternative to conventional orthodontic surgery to accelerate treatment because tooth movement in edentulous spaces created by osteodistraction requires more time
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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