1,721,035 research outputs found
General Guidelines and Modulation of Surgical Treatment According to Site, Stage and Radiographycal Appearance of Aneurysmal Bone Cysts
General Guidelines and Modulation of Surgical Treatment According to Site, Stage and Radiographycal Appearance of Aneurysmal Bone Cyst
"Il Lembo di Gastrocnemio nella Chirurgia dei Sarcomi del Ginocchio"
Il Lembo di Gastrocnemio nella Chirurgia dei Sarcomi del Ginocchi
Vascularized Fibula as Salvaging Procedure in Failed Femoral Allografts
Vascularized Fibula as Salvaging Procedure in Failed Femoral Allograft
Healing of large bone defects with allogenic bone grafts enriched with autologous bone marrow buffy coat and platelet-rich plasma.
The reconstruction of large bone segments is a major goal in orthopaedic surgery. Autologous cancellous bone is recognized as the most biologically active graft material, but autologous bone harvest is associated with significant morbidity and founds its limit in the available quantity. Biomaterials or allografts do not encounter these limitations, but have no osteogenic and limited osteinductive potential. In order to enhance tissue regeneration and healing we have tried to obtain a graft with osteconductive, inductive and osteogenic properties. The day before operation 350 cc of autologous blood is donated from the patient and centrifuged to obtain a platelet-rich plasma. Bone marrow is aspirated from the posterior iliac crests with the patient under spinal anaesthesia and is processed to increase its stem cell content. The structural scaffold used is morcellized cancellous bone provided from our Bone Bank. At operation bone is mixed with bone marrow buffy coat and Platelet Rich Plasma in a sterile glass becker with addition of CaCl2 till clot formation to produce a gel-like component that is handled easily. We have utilized this technique from November 2000 till January 2004 for 68 patients: 41 of these patients required healing of large bone defects: 22 males and 19 females. Fresh bone marrow alone was used for a percutaneous injection in 11 cases; open surgery with autologous growth factors, bone marrow buffy coat and allograft was used in 30 patients. The radiological and clinical results showed early healing of the defects treated with this technique and no complications related to the procedure at an average follow up of 23 months (3–40)
Italian Experience on Bone Allograft International Symposium on Bone and Soft Tissue Allografts.
Italian Experience on Bone Allograf
Knee reconstruction after bone tumor resection in children
Knee reconstruction after bone tumor resection in childre
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
Pelvic resection - The Rizzoli Institute experience
"Pelvic Resections: The Rizzoli Institute Experience
Pathologic Fracture after Radiation Therapy and Limb-Salvage Surgery for Soft Tissue Sarcomas
- …
