Incidentally diagnosed melorheostosis of upper limb: case report.

Background: Melorheostosis is quite a rare bone disease with still unclear ethiology. Although multifocal affection is highly debilitating with unfavorable prognosis, there is no clear consensus about therapeutical approach. There is still insufficient evidence in the literature for almost a century after the first description.

Concave impressio ligamenti costoclavicularis ("rhomboid fossa") and its prevalence and relevance to clinical practice.

Purpose: The incidence of fossa rhomboidea (RF) and its relevance to clinical practice were retrospectively studied in 1,017 cases of patients who endured clavicle fractures. The aim of the study was to determine the frequency of different types of insertion areas of costoclavicular ligament (LCC) in our group, as well as gender distribution. Furthermore, we wanted to investigate whether the RF represents a weakened part of clavicle where the fracture occurred.

Superficial soft tissue biphasic synovial sarcoma with apocrine differentiation in the glandular component: a report of two cases.

: The authors present 2 cases of a subcutaneous biphasic synovial sarcoma with marked apocrine differentiation that potentially may be confused with cutaneous epithelial neoplasms, including malignant apocrine mixed tumor or metaplastic carcinoma with an apocrine glandular component. Microscopically, both neoplasms had a biphasic architecture with the epithelial and spindle cell components. The epithelial component was prominent and consisted of simple glands with round lumina and complex glandular structures with intraluminal bridges forming cribriform areas.

[Geriatric traumatology - vision or reality?].

The aim of the paper is to provide information on the establishment of the Geriatric Fracture Centre (GFC) at the Department of Orthopaedics and Traumatology, Faculty Hospital at the Faculty of Medicine, Charles University, Pilsner, whose goals and services are in accordance with the principles of the Rochester GFC, USA, and the AO Foundation at Synthes Inc. The paper presents up-to-date information on the methods of osteosynthesis for the skeletal system affected by osteoporosis, the majority of which was obtained in the AO Geriatric Fracture Course in Davos, December 2007. The authors are concerned with the pre-operative examination of geriatric patients who suffered a fracture.

Crystal-deficient alveolar soft-part sarcoma with cutaneous involvement: a case report.

Alveolar soft-part sarcoma (ASPS) is a rare distinctive sarcoma, in most cases involving deep soft tissues of the extremities. It is associated with a specific unbalanced translocation, der(17)t(X;17)(p11;q25) that results in the formation of an ASPL-TFE3 fusion gene. Microscopically, it is typified by an alveolar growth of large cells containing typical periodic acid-Schiff-positive rod-shaped crystals, often serving as a diagnostic clue.

Reduction of venous thromboembolism following prolonged prophylaxis with the low molecular weight heparin Certoparin after endoprothetic joint replacement or osteosynthesis of the lower limb in elderly patients.

The peri- and postsurgical thromboembolic prophylaxis with low molecular weight heparins is a well established therapy regimen, but the optimum duration of prophylaxis after surgery still remains uncertain. A few studies have pointed to the fact that the thromboembolic risk of high-risk patients persists longer than the in-hospital period correlating with respective hypercoagulatory conditions. The aim of the present study was to test if a prolongation of thromboprophylaxis with the low molecular weight heparin Certoparin further reduces the rate of thromboembolism in high-risk patients after orthopedic surgery.