Search results for "Femur Head"
showing 4 items of 4 documents
A new type of autosomal recessive spondyloepiphyseal dysplasia tarda
2004
Repeated occurrence of a hitherto unrecognized form of spondyloepiphyseal dysplasia tarda (SED tarda) has been studied in two independent families. Because parental consanguinity was also present in one family, autosomal recessive inheritance is proposed. The onset was in late childhood. The slowly evolving disorder shared several features of the already known types of SED tarda. The radiographic abnormalities were limited to the spine and proximal femora. The patients' hands were normal. The entity described is set apart not only from the X-linked and autosomal-dominant forms of SED tarda but also from the already delineated autosomal recessive types by significant clinical and radiographi…
Histopathological and immunohistochemical aspects of bone tissue in aseptic necrosis of the femoral head
2021
Femoral head osteonecrosis, also known as avascular necrosis, is a disease with a multifactorial etiology, characterized by a profound change of bone architecture, which leads to the diminishing of bone resistance and femoral head collapse. The main causes that lead to femoral head necrosis are represented by the decrease of local blood perfusion and increase of intraosseous pressure, because of an excessive development of adipose tissue in the areolas of the trabecular bone tissue in the femoral head. The histopathological and immunohistochemical (IHC) study performed by us showed that most of bone trabeculae were damaged by necrotic-involutive processes, their sizes being reduced, both re…
Short-term effect of zoledronic acid upon fracture resistance of the mandibular condyle and femoral head in an animal model
2013
Objective: The aim of this study was to compare the effects in terms of resistance to fracture of the mandibular condyle and femoral head following different doses of zoledronic acid in an animal model. Study design: A total of 80 adult male Sprague-Dawley rats were included in a prospective randomized study. The animals were randomly divided into four groups of 20 rats each. Group 1 (control) received sterile saline solution, while groups 2, 3 and 4 received a accumulated dose of 0.2 mg, 0.4 mg and 0.6 mg of zoledronic acid, respectively. The animals were sacrificed 28 days after the last dose, and the right hemimandible and the right femur were removed. The fracture strength was measured …
Ergebnisse nach Implantation von zementfreien metallspongiösen Hüftprothesen
1994
72 Huftgelenke mit zementfreier metallspongioser Huftprothese wurden zwei bis sieben Jahre (mittlere Nachuntersuchungszeit 43 Monate) nach der Implantation klinisch und rontgenologisch kontrolliert. Bei funf Patienten muste die zementfreie Prothese wegen Lockerung (ausbleibende knocherne Einheilung n=2, Pfannenlockerung infolge operationstechnischer Fehler n=3) gewechselt werden. Aufgrund der klinischen Befunde konnten 88% von 67 Huften mit sehr gut bzw. gut, 9% mit befriedigend und 3% mit unbefriedigend bewertet werden. 10% der Patienten klagten noch uber Oberschenkelschmerzen. Die typischen, rontgenologisch erkennbaren, knochernen Reaktionen des Implantatlagers werden beschrieben, eine In…