1,721,013 research outputs found
Il piede valgo convesso: trattamento chirurgico
No full textIl piede valgo convesso: trattamento chirurgico [Convex pes valgus: surgical treatment
Aspetto radiografico delle cisti aneurismatiche del rachide
No full textAneurysmal bone cyst is a pseudoneoplastic skeletal disorder. The material of the Tumor Center at the Rizzoli Orthopaedic Institute refers to 198 cases, 25 (12.6%) with spinal localization. The X-ray pattern of aneurysmal bone cyst is represented by an osteolytic area more or less evidently involving the vertebra, with frequent extension to the surrounding soft tissues. Its maturing evolution is typical, and occurs both spontaneously and after surgical and/or radiation therapy
Revisione di 269 casi di osteosarcoma: correlazioni clinico-radiografiche finalizzate ad un adeguato programma terapeutico
No full textRevisione di 269 casi di osteosarcoma: correlazioni clinico-radiografiche finalizzate ad un adeguato programma terapeutico
Primary central (medullary) fibrosarcoma of bone
No full textEighty cases of primary fibrosarcoma of bone from the Rizzoli Institute are reviewed. There was a slight male predominance with a wide patient age distribution. Roentgenologically, low grade fibrosarcomas had generally well-defined margins and a 'soap-bubble' appearance. High grade tumors appeared permeative and more aggressive. Histologically, the majority of tumors were high grade (3 and 4). Prognosis correlated well with the grade of the tumor. The 10-year survival rate was 83% for low grade sarcomas and 34% for high grade tumors. Local recurrence was a bad prognostic sign
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
Case report 223. Benign fibrous histiocytoma.
No full textCase report 223. Benign fibrous histiocytoma
Un segno radiologico molto frequente nella localizzazione dorso-lombare dei cordomi: l'aumento della distanza interpeduncolare
No full textThe X-ray picture of 11 cases of chordoma of the thoraco-lumbar spine at the Tumors Centre of the Rizzoli Orthopaedic Institute is studied. In 7 cases an increase in the interpeduncular distance of the affected vertebrae was noticed. The high incidence of this radiologic sign, never reported previously in the literature, represents a semeiologic element of great importance in the diagnosis of this neoplasm. The ways of measurement are then indicated and the significance of this report is stressed
Risultati nel trattamento immunoterapico e chirurgico nelle osteomieliti croniche ematogene dell'infanzia
No full textRisultati nel trattamento immunoterapico e chirurgico nelle osteomieliti croniche ematogene dell'infanzia [Results in the immunotherapeutic and surgical treatment of hematogenous chronic osteomyelitis in children
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