No abstract available.
Sturge-Weber Syndrome*

No abstract available.
Burns* ; Humans

No abstract available.
Humans ; Papilloma* ; Warts*

No abstract available.
Cryptococcosis*

Purpose: We wanted to evaluate the clinical and radiologic results of acetabular revision using the acetabular reinforcement ring and also the allograft impaction in the acetabulum having deficient bone stock. Material and Methods: Nineteen hips revision arthroplasty were performed in 18 patients (9 males and 9 females) with using an acetabular reinforcement ring and allograft between July 1993 and December 2003. The patients were followed for an average of 64 months (range: 24-153). The mean age at the time of arthroplasty was 59 years old (range: 34-76). The causes of revision were aseptic loosening of the acetabular component in 16 cases, severe progressive osteolysis around the acetabular component in 2 cases and Girdlestone state after infected total hip arthroplasty in one case. The acetabular deficiency was type II in 5 hips, type III in 13 hips, and type IV in one hip according to the AAOS classification. The clinical results were evaluated using the modified Harris hip score, and the radiologic results were evaluated by assessing the preoperative and serial follow-up radiographs. Results: The mean preoperative Harris hip score of 47 was improved to 86 points at the latest follow-up. Periacetabular osteolysis was found in 2 cases, which did not progress at follow-up. The anatomic hip center was restored after revision arthroplasty (p<0.05). Complications were dislocation in 2 cases, breakage of the hook of the Ganz ring in one case, heterotopic ossification in one case and femoral artery injury in one case. All cases showed stable fixation of the acetabular component and good remodelling of the impacted allograft. There was neither recurrence of dislocation nor progression of the acetabular component loosening on the radiographs. Conclusion: Acetabular revision with acetabular reinforcement ring and allograft impaction showed satisfactory clinical and radiologic results with restoration of the hip center and consolidation of the allograft.
Acetabulum* ; Allografts* ; Arthroplasty ; Arthroplasty, Replacement, Hip ; Classification ; Dislocations ; Femoral Artery ; Follow-Up Studies ; Hip ; Humans ; Male ; Ossification, Heterotopic ; Osteolysis ; Recurrence

PURPOSE: The aim of this study was to analyze the osteogenic effect of cultured rabbit mesenchymal stem cells(MSCs). MATERIALS AND METHODS: MSCs were obtained from rabbit femur and were cultured in a Dulbecco's Modified Eagle's Medium(DMEM) with beta-glycerophosphatate, L-ascorbic acid, and dexamethasone to proliferate and differentiate into osteoprogenitor cells until 12 weeks. The expression of osteogenic markers was detected by reverse transcription-polymerase chain reaction(RT-PCR) and the release of osteocalcin was measured by Enzyme-linked Immunosorbent Assay(ELISA). MSCs that were cultured on the porous poly-L-lactic-co-glycolic acid(PLGA) scaffold were implanted into athymic nude mouse to observe the osteogenic activity. RESULTS: As the time, we observed osteoblastic-like cells on the culture flask. Mineralized nodules were observed at 3-4 weeks. Osteogenic markers such as osteopontin, osteonectin, type I collagen, and alkaline phophatase were all identified at 2 weeks. But, expression of osteocalcin was only detected after cells differentiation. The amount of osteocalcin which is a specific protein in osteoblast, increased gradually from 2 weeks until 7 weeks. Scanning electron microscopy revealed that the MSCs were well adhered and proliferated within the PLGA scaffold. Immature bone was identified after 10 weeks in the histological examination of transplanted cell-scaffold composit. CONCLUSION: Our results demonstrate gradual differentiation of MSCs into osteoblastic cells. The adhesion and proliferation of the cells within the biodegradable scaffold represents the possibility of bone formation using cell-scaffold composites.
Animals ; Ascorbic Acid ; Bone Marrow* ; Collagen Type I ; Dexamethasone ; Femur ; Mesenchymal Stromal Cells* ; Mice ; Mice, Nude ; Microscopy, Electron, Scanning ; Osteoblasts ; Osteocalcin ; Osteogenesis ; Osteonectin ; Osteopontin

Aneurysmal bone cyst is an uncommon spinal tumor of vascular origin and represents less than 1% primary bone tumors. A case of 15-year-old girl who presented with low back pain and severe left leg pain. The lesion was expansile in nature involving anterior and posterior bony elements of the spine. It also showed expanision into the intraspinal canal and paraspinal soft tissue. Surgical treatment consisted of tumor excision and pedicle screw fixation via extracavitary approach. Postoperative course was uneventful and her symptoms and signs were improved. Extracavitary approach, as applied to our case, seemed to be an ideal surgical method in such cases because of its nature and extent of involvement.
Adolescent ; Aneurysm* ; Bone Cysts* ; Female ; Humans ; Leg ; Low Back Pain ; Spine

Anomalous origin of one pulmonary artery from the ascending aorta is a rare congenital malfomation. To date, there have been 60 reported cases in the literature. Usually the right pulmonary artery arises form the ascending aorta and other malformations such as patent ductus arteriosus are commonly associated. Early diagnosis is essential because congestive heart failure develops in early life and operation is contraindicated if severe pulmonary vascular changes have occurred. We report a case of anomalous origin of right pulmonary artery from the ascending aorta, which is associated with patent ductus arteriosus and severe pulmonary hypertension. She was diagnosed by digital subtractional angiography and cardiac catheterization.
Angiography ; Aorta* ; Cardiac Catheterization ; Cardiac Catheters ; Ductus Arteriosus, Patent ; Early Diagnosis ; Heart Failure ; Hypertension, Pulmonary ; Pulmonary Artery*

No abstract available.
Lymphangioma, Cystic* ; Turner Syndrome* ; Ultrasonography*