RESUMO
Tuberous sclerosis is a disease characterized by the presence of hamartomatous nodules in various organs, including the brain. Thirteen CT scans and four MR investigations were performed in 13 patients. CT is superior to MR in demonstrating the presence of subependymal nodules, thereby confirming or establishing the diagnosis of tuberous sclerosis. MR is superior to CT in demonstrating the peripheral lesions, which are characterized by a long T2-relaxation time. Differentiation between cortical tubers and subcortical lesions is not yet accurate.
Assuntos
Encéfalo/diagnóstico por imagem , Esclerose Tuberosa/diagnóstico , Adolescente , Adulto , Encéfalo/patologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Tomografia Computadorizada por Raios XRESUMO
A cemented revision of failed total hip arthroplasty is prone to early mechanical failure. Cementless revision seems to be much more promising. We present our 2 year follow-up of 19 cementless revisions using the R.M. isoelastic stem. During follow-up special attention focused on the restoration of bone stock on the femoral side of the arthroplasty. Bone stock deficiencies encountered during the operation were managed with grafts. Other complications to solve during the procedure were encountered frequently. The average follow-up was 58 months. Rating the results following Merle d'Aubigné and Postel showed very good or good result only in half of the cases, one case needed a revision. Nevertheless good restoration of bone stock was observed in nearly all cases. A greater number of patients should be followed for a longer period of time to establish the exact role of this prosthesis design.
Assuntos
Prótese de Quadril , Adulto , Idoso , Idoso de 80 Anos ou mais , Transplante Ósseo , Seguimentos , Humanos , Complicações Intraoperatórias/etiologia , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Desenho de Prótese , ReoperaçãoRESUMO
Between 1985 and 1991, thirty-one patients with spinal metastases were operated in our department. The aim of the surgical treatment is to abolish pain and instability caused by neurological involvement and bony invasion. Anterior decompression with fixation by means of a methylmethacrylate cement block was used. In some cases additional posterior fixation was used in a second procedure. Pain was reduced in 78% of the patients, and 70% underwent improvement of their neurological status. The quality of life was improved, but the short survival confirms the palliative nature of this kind of surgery.
