PubMed Health⌕ Search

PubMed · 4075884

[Progress in external fixation].

Abstract

The monofixateur opens up avenues in external skeleton fixation. Proceeding from Lambotte's groundwork and from the given anatomical conditions and biomechanical requirements, a system has been developed that ensures maximum effectiveness with a minimum of mechanical means and operative procedure. Of particular importance is the dual-application feature of the monofixateur system: it is equally indicated for static as well as dynamic fixation, and is quickly and easily adapted from one function to the other at any time as called for by the treatment process. This system provides for dynamic function when applied without fixation clamping jaws on one of the major bone fragments. It allows for functional axial compression to be exerted through muscle contraction and pressure, while simultaneously excluding the possibility of bending and rotation, thus effectively promoting the healing process. The monofixateur is indicated for treatment of closed, open and infected fractures, pseudarthrosis, osteotomy adaption, arthrodesis and joint transfixations. In brief, the advantages of external fixation by the monofixateur may be summarized as follows: Simple mechanical design affording precise function. High stability with small number of fixation components. Unilateral assembly of device in position biomechanically favorable. Static or dynamic fixation. Little patient impairment.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

L Gotzen, N Haas, R Schlenzka. 1985. [Progress in external fixation].. https://pubmed.ncbi.nlm.nih.gov/4075884/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

[Preventing malrotation during intramedullary nailing of femoral fractures].

BACKGROUND: The problem of preventing malrotation after closed intramedullary nailing of femoral shaft fractures has not been solved yet. As clinical tests and radiologic criteria for intraoperative use provide little accuracy, the theoretical basis for a C-arm-based measurement of the femoral antetorsion was analysed. METHODS: The directions of femoral neck axis and condylar axis can be identified by the radiologic views "knee joint, lateral view" and "hip joint, axial view". The rotation of the C-arm in relation to a horizontal axis to achieve these views can be measured in degrees. Theoretically, the difference between these rotation angles could be used to calculate the antetorsion. Intact plastic femora (Sawbone) and a femoral shaft fracture model were used to research optical and geometrical phenomena that influence a direct measuring technique. RESULTS: Several geometrical phenomena were observed, making direct measurement with arithmetic corrective factors not recommendable. For practical reasons, a data table was created, correlating the difference between the two C-arm angles with true antetorsion. In an interobserver trial with 18 trauma surgeons, the method proved to achieve high accuracy with a maximum interobserver variation of 5 degrees. CONCLUSIONS: The method is easily reproducible, reliable and can be recommended to every surgeon. Due to the wide range of physiological antetorsion angles in different individuals, fair results can be expected controlling the rotation with standard value tables, and excellent results can be expected using bilateral measurement.

Femoral Fractures↗