The regional bone bank offers a good foundation for covering the expanding clinical demands in tumor and revision surgery. Since 1980 the tissue bank of Münster consists of 32 cadaveric and 41 multi organ donors. In the guidelines of the tissue bank the responsibility, organisation form, donor selection, quality control, sterilisation, documentation and all questions of finances are fixed, in accordance to the American Association of Tissue Banks. A fixed staff will be helpful to offer a secure and not expensive donor tissue for the clinical demands.

Bone Transplantation↗

PubMedDate not supplied

[Allograft transplantation in pelvic instability following prosthesis exchange].

The collective consists of 19 patients with 21 operations after multiple revision operations with complete pelvic instability. The reconstruction was done with tibia (11x) and femur allografts (6x). The bridging was reached by pressfit contact. The junction side was supplemented with autologous bone chips. The allografts were fixed with screws or plates. In all patients a good primary stability was achieved. Partial weight bearing was gained within 10.1 week and full weight bearing in 15.1 weeks. We notice one allograft fracture after 4 months and one infection after 3 months. The reoperation rate was 4. The clinical results are encouraging. No lytic lines were seen between the acetabulum cup implant and the allograft within 20.1 months time.

Acetabulum↗

PubMedDate not supplied

[Long-term results of Judet's cementless total endoprosthesis of the hip joint].

AIM: Control of the long term results of the Judet-TEP. METHODS: From 1980-1985 124 Pat. have been operated. The follow up was done in the same collective of 83 patients after 2-6 years and > 6 years. RESULTS: The intraoperative complications have been fractures of the femur (19.3%) and the trochanter major (3.6%) and luxation (1.9%). In the follow up time the clinical results declined. The patients complained increasing pain in the thigh (26.5%) and the groin (13.2%). Radiological loosening of the acetabulum occurred especially in the medio-caudal area (61.5%) and in the proximal femur (32.5%). Cranial movement of the cup (31.3%) and varus deviation in the femur (40.9%) predominated. 28 prostheses were revised. After 11 years the cumulative success rate was 55.1%. CONCLUSIONS: The long term results are disappointing.

Adult↗

PubMedDate not supplied

[Vertebral implant as a treatment principle in tumors and metastases of the thoracic and lumbar spine].

We report the clinical course of 31 patients suffering from primary tumors or vertebral metastases treated by osteosynthesis with vertebral body implant. Surgical treatment of vertebral tumors aims at eliminating the compression, thus relieving the myelon and the roots as well as the reestablishment of the supporting function of the involved segments. Subjective and objective improvement was found in 64.5 per cent of the 31 patients. The conditions remained the same in 22.5 per cent. New symptoms occurred in 13.0 per cent. After tumor specific evaluation of the over-all survival period, plasmacytoma were found to have a more favourable course of a little more than two years. Patients with vertebral metastases died after an average of 10 months. In nearly all cases with postoperative improvement on the initial symptoms and signs, the symptoms could be improved permanently. We thus regard ventral curettage and parallel stabilisation, may be combined with dorsal stabilisation, as a means of improving the quality of life in these patients. By using the surgical technique employed by us sufficient stabilisation of the vertebral column can be achieved in order to enable quick mobilisation of the patients.

Adult↗

PubMedDate not supplied

[Ventral stabilization of primary tumors and metastases of the spine with vertebral body implant and palacos].

The authors report on the clinical course of 31 patients with primary tumors or metastases of the spine which were treated with the vertebral body implant and Palacos, i.e., composite osteosynthesis. The goal of therapy is to relieve the spinal cord and the nerve roots and to restore the supporting function of the spine. Subjective and objective improvement was found in 64% of the patients; the result was unchanged in 23%, and further symptoms developed in 13%. The tumor-specific breakdown revealed that overall survival was somewhat more than two years in plasmocytoma cases and ten months in metastasis cases. In almost all cases in which an improvement in initial symptoms was achieved postoperatively, this improvement was permanent. With the surgical technique applied here spinal stability can be restored and the patients can also be mobilized quickly.

Adult↗

PubMedDate not supplied

[Surface analysis and metallographic studies of Judet's prosthesis].

Surveying a quantity of 25 prostheses type Judet by stereoscopy and scanning electron microscopy in all specimen contaminations of the surface were found. By X-ray microanalysis these contaminations were ascertained to be mainly residues of the casting mould. Furthermore, tooling residues from the sandblast (e.g. grains of corundum or glass) were found. A metallographic investigation, which was performed thereupon on two randomly selected specimen, shows clusters of microporosities in the cross sections and carbides in the grain boundaries.

Electron Probe Microanalysis↗