1,720,971 research outputs found
Injury to major abdominal vessels during posterior lumbar interbody fusion. A case report and review of the literature.
No full textACKGROUND CONTEXT: Numerous cases of injury to major abdominal vessels during the excision of a lumbar herniated disc have been reported, but no cases of injury during interbody fusion by a posterior approach have been described.
PURPOSE: To report on an injury to common iliac vessels during a posterior lumbar interbody fusion (PLIF) and discuss the causes and possible preventive measures.
STUDY DESIGN: A unique case report and a review of the literature.
METHODS: The hospital chart and autopsy report of a single patient were analyzed.
RESULTS: A 52-year-old woman with L4-L5 disc degeneration underwent PLIF. During scraping of the vertebral end plates, there was a sudden increase in blood flow from the disc space, however not copious, with no changes of vital parameters. When the patient was placed supine, severe hypotension and abdominal distension led to strongly suspect a lesion to abdominal vessels. At laparotomy, carried out by a vascular surgeon, a vast retroperitoneal hematoma was evacuated and the vascular lesions were repaired. Postoperatively, the patient continued to lose blood from the abdominal drains and after 4 hours, she was reoperated by another vascular surgeon, who found a diffuse hemorrhage from the small vessels in the surgical field. Soon after the surgery the patient died.
CONCLUSIONS: The lesions were produced by a shaver used for scraping the vertebral end plates. The absence of abundant bleeding from the disc space was possibly because of the compression of the iliac vessels by the pads of the frame on which the patient was lying. The causes of the lesions and possible prevention of similar injuries are analyze
Scapular dyskinesis and SICK syndrome in patients with a chronic type III acromioclavicular dislocation. Results of rehabilitation.
No full textScapular dyskinesis has been related to acromioclavicular injuries. A rehabilitation protocol has been studied in order to treat scapular dyskinesis, but it has not yet been evaluated. This rehabilitation programme was adopted to improve the shoulder function, thereby improving the scapular dyskinesis in patients with chronic acromioclavicular dislocation.
METHOD:
Twenty-four patients diagnosed with chronic type III acromioclavicular dislocation and scapular dyskinesis that have already been conservatively treated were enrolled in the rehabilitation protocol and analysed. Fourteen of these patients had a Scapular Inferior Coracoid dysKinesis (SICK) Syndrome. The adopted rehabilitation protocol consisted of 12 strengthening and stretching exercises of the scapulae. The final follow-ups were performed after 6 weeks, 6 months and 12 months using clinical measurements of scapular position and clinical evaluation of the scapular motion. In order to evaluate the SICK scapula syndrome, we used the SICK Scapula Rating Scale. The shoulder function was evaluated with a Constant Score and a Subjective Shoulder Value.
RESULTS:
After 12 months, the follow-up concluded that the scapular dyskinesis was no longer present in 18/23 patients (78.2 %). SICK scapula syndrome was observed in 4/8 patients with a scapular malposition. The Scapula Rating Scale score in 4 patients with SICK scapula was 7.5 points. After 12 months of rehabilitation, the mean Constant Score and Subjective Shoulder Value grew up to 85 points.
CONCLUSION:
The scapular dyskinesis and SICK syndrome secondary to chronic type III AC dislocation can be treated with the proposed rehabilitation protocol resulting in positive improvements of the shoulder function within 6 weeks; however, patients that do not respond to the rehabilitation programme will not improve with extended rehabilitation time. It is important to advise patients of the specific exercises for the prevention/treatment of scapular dyskinesis in the rehabilitation programme after AC joint dislocation. LEVEL OF EVIDENCE: IV.Scapular dyskinesis has been related to acromioclavicular injuries. A rehabilitation protocol has been studied in order to treat scapular dyskinesis, but it has not yet been evaluated. This rehabilitation programme was adopted to improve the shoulder function, thereby improving the scapular dyskinesis in patients with chronic acromioclavicular dislocation.
METHOD:
Twenty-four patients diagnosed with chronic type III acromioclavicular dislocation and scapular dyskinesis that have already been conservatively treated were enrolled in the rehabilitation protocol and analysed. Fourteen of these patients had a Scapular Inferior Coracoid dysKinesis (SICK) Syndrome. The adopted rehabilitation protocol consisted of 12 strengthening and stretching exercises of the scapulae. The final follow-ups were performed after 6 weeks, 6 months and 12 months using clinical measurements of scapular position and clinical evaluation of the scapular motion. In order to evaluate the SICK scapula syndrome, we us
Sequelae of an undiagnosed unilateral congenital fixed anterior shoulder dislocation in a 40-year-old female
No full textCongenital shoulder dislocation is a rare condition. A review of the literature showed that 0.018-0.07% of newborns suffer from shoulder dislocations. There have been only few reports about this entity, clinic and radiologic features, treatment, and etiology of this condition remains unclear. We report a case of undiagnosed unilateral congenital fixed anterior shoulder dislocation in a 40-year-old female, which affected the day quality of life. Pediatrists and orthopaedic surgeons should know this rare condition and the importance of a proper diagnosis in the early childhood when an appropriate treatment could be performed
Instabilità anteriore: intervento di Bankart e capsuloplastiche
No full textL’ esperienza dell'ultimo decennio indica che
gran parte delle forme di instabilità della spalla
può essere trattata per via artroscopica con
risultati analoghi a quelli forniti dalla chirurgia
a cielo aperto. Tuttavia, nelle instabilità dovute
a distacchi capsulo-legamentosi dall'omero
(HAGL) o nelle lesioni di Hill-Sachs incarcerate,
la chirurgia aperta rappresenta il trattamento
preferito da molti chirurghi. In altre forme di
instabilità, come quelle associate a fratture del
bordo glenoideo anteriore, la chirurgia aperta
e, invece, il trattamento di elezione, particolar-
mente quando la frattura interessa più di un
quinto dell'intera superficie della glenoide.
La stabilita post-chirurgica della spalla non
deve essere ottenuta al prezzo di una rigidità
articolare. Questa può essere causa di disabilita
e di predisposizione a un'artropatia. le capsuloplastiche a cielo aperto hanno determinato
spesso una perdita di alcuni gradi di extrarotazione. E’ stato proprio questo motivo, oltre a
quello estetico e alia più alta morbilità, che ha
progressivamente indotto i chirurghi di spalla
ad abbandonare il trattamento a cielo aperto di
riparazione della lesione di Bankart e a prediligere quello artroscopico.
Lo scopo di questo lavoro e quello di descrive
re le tecniche di capsuloplastica in voga negli
anni Ottanta e Novanta, e da noi utilizzate,
che sono state nel tempo sostituite da
artroscopiche
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
Asymptomatic anterior shoulder dislocation of 24-year duration
Full text linkA 73-year-old woman presented with a very long-standing anterior dislocation of her right shoulder. She had no pain, mild impairment of active shoulder motion and clinical features suggesting no tear of the rotator cuff. CT 3D reconstructions showed a newly formed glenoid cavity below the coracoid process. This case indicates that an anterior shoulder dislocation lasting even decades may be compatible with an almost normal shoulder function
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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