[Regional migrating osteoporosis - a case report].

Regional migrating osteoporosis (RMO) was observed in young man with episodes of bone pain in bearing joints, which migrated from hip to leg and subsequently to knee on the unilateral side. Dynamic scintigraphy (SPECT) carried out during relapse of pain demonstrated increased accumulation of radioizotope in Lisfrank joint, distal epiphysis of femur and proximal epiphysis of tibia on the unilateral side due to hyperperfusion and high metabolic turnover in these regions of the skeleton. Dia-gnosis of RMO was confirmed by magnetic resonance (MRI), which showed bone marrow edema of corresponding regions.

[Diagnosing occult pertrochanteric fractures of proximal femur with MRI].

A group of 9 patients with a suspected fracture of the hip underwent radiography and subsequently magnetic resonance imaging (MRI) diagnosis. Radiographic findings were in 2 cases negative and in 7 cases the radiographs revealed a fissure or fracture of the greater trochanter. MRI proved a complete pertrochanteric fracture in 1 case, an incomplete pertrochanteric fracture in 8 cases and in all the 9 cases a fracture of the greater trochanter.

[Can the new CT-based classification of acetabular fractures be useful for clinical practice?].

Currently, conventional diagnosis of acetabular fractures is often supplemented and even replaced by CT examination, as this can provide a more detailed image of the extent of fracture and its morphology. Supported by developmental anatomy, Harris et al. proposed a new classification for acetabular fractures in which the pubic bone component of the acetabulum is shown to coincide with the anterior column of the acetabulum.

[Treatment of deep cartilage defects of the knee with autologous chondrocyte transplantation on a hyaluronic Acid ester scaffolds (Hyalograft C)].

Purpose Of The Study: The treatment of chondral defects by transplantation of autologous chondrocytes has recently shown further development. Various biomaterials are used as carriers facilitating attachment and even distribution of chondrocytes in the defect. Since 2003 Hyalograft C, hyaluronan-based scaffolds, has been used, in a clinical study, for implantation of autologous chondrocytes in the treatment of deep chondral lesions of the knee at our department.

The role of bone scan in the diagnosis of Jaffé-Lichtenstein-Uehlinger syndrome.

The case of a 12-year-old girl with Jaffé-Lichtenstein-Uehlinger syndrome is presented. A bone scan pattern exhibits clinical symptoms, X ray images and histological findings are described in a case of polyostotic form of the fibrous dysplasia. A biopsy with histology was performed in consideration of bone scan findings and a confirmed final diagnosis.