W. Böddeker

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The ultrasound control after spongiosa substance plasty is, as described, a supportive method to x-ray measurement. The clinical experience and results are most encouraging. Therefore an experimental proof of this method is necessary. The model is the complete lower leg after amputation. The tibia is prepared with autologous and homologous spongiosa(More)
There is a high axial load for lower leg distractive osteosyntheses with external fixation systems. In searching for a high rigidity comparative investigations on the stability with different external fixators were carried out by an own-developed material testing machine. Our anular fixator showed more rigidity than a three-dimensional ASIF-external(More)
The x-ray control is standard for spongiosa substance plasty and shows three periods of healing. In the first two periods (vascularisation and osteogenic reaction) the examination is restricted. Ultrasound control is a simple handling method although a hyporesonance or non-resonance of calcareous bone exists. The follow-ups concerning spongiosa substance(More)
Ring fixation permits easy reduction of closed tibial fractures. After application of two rings proximally and distally to the fracture and connection with tubes, the fracture is reduced. This should be followed by standard X-ray and application of a walking east. When the cast has dried, the rings are removed. Tibial fractures with severe soft tissue(More)
In addition to the well-known indications, annular fixation permits other applications as well: (1) fracture stabilization in polytraumatic patients (secondary use to correct primary reduction failure); (2) stage fractures; (3) Closed fractures with considerable soft-tissue lesions; (4) an aid in the reduction of unstable closed fractures (transfixation(More)
Notwithstanding the generally known principles of therapy, indications can be enlarged by use of an annular fixator to cover the following applications: 1. stage fractures of the tibia, 2. stabilisation of fractures of polytraumatised patients with no need for anatomic reposition in the first place, 3. closed lower limb fractures with soft tissue lesions.(More)
The x-ray control is standard for spongiosa substance plasty and shows three periods of healing. In the first two periods (vascularisation and osteogenic reaction) the examination is restricted. Ultrasound control is a simple handling method although a hyporesonance or non-resonance of calcareous bone exists. The follow-ups concerning spongiosa substance(More)
There is a high axial load for lower leg distractive osteosyntheses with external fixation systems. In searching for a high rigidity comparative investigations on the stability with different external fixators were carried out by an own-developed material testing machine. Our anular fixator showed more rigidity than a three-dimensional ASIF-external(More)
Besides generally known therapeutic practice, indications can be discovered and more easily evaluated by using a "Ring Fixator". Applications include the following: (1) stage fractures of the tibia, (2) stabilisation of fractures of polytraumatized patients with no need for prior anatomical reduction and (3) closed lower limb fractures with severe soft(More)