Search

62 children with spondylolisthesis were examined. Functional anatomical studies on 25 growing human spines were performed to analyse their macro morphological behavior before and after spondylolisthesis. The progression of spondylolisthesis is explained as growth disturbance. The high incidence of spina bifida occulta in spondylolisthesis is a mechanical induced osteochondrosis of the dorsal arc. The different morphology of the spondylolisthesis in children depends mostly of the age of the beginning of this disease. The differentiation between the dysplastic and spondylolytic isthmic type of spondylolisthesis is not indicated. Pour prognosis is expected in young children with kyphosis and high ventral dislocation in the involved segment.

Thoroughly indicated and performed limb salvaging resections of primary malignant bone tumors can be as well affective as amputations and disarticulations. Possible limb salvaging operative procedures are described with regard to histodiagnosis grading, localisation, expansion of neoplasma as well as to the personality of the patient.

The postoperative fracture of the femur following total hip arthroplasty ranks third in occurring complications and the number of such cases is increasing. Most of the patients are elderly and multi-morbid and the fractured femur had undergone previous operations. Using the literature our own experience in 15 cases and applying a fracture classification we make suggestions for treatment of the different fracture types. Considering the patients overall health it's possible to obtain good results in the operative therapy which was necessary in most cases of these femur fractures.

The indication for functional or operative treatment of fractures of a vertebral body depend on the additional injury, on the stability of the fracture and on the amount of deformity. In a retrospective radiological study on 74 patients we analysed the behavior of secondary deformation in stabile fractures of thoraco-lumbal vertebral bodies under treatment with a 3-Points-Corset. The average initial sagittal deformity was 12.5 degrees. After three months an average increase of 1.5 degrees was measured resulting in an average increase of total kyphosis of 2.5 degrees during fracture consolidation. No further secondary changes were seen after a period of three months following the injury.