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PubMed · 9541840

[Comparative stability studies with the modified Stellbrink external fixator].

R Schäfer·C Braun·W Mittelmeier
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Abstract

We replaced original Stellbrink-fixator clamps with adjustable horizontal and vertical clamps. Thus, smaller bone fragments can be fixed and there is a possibility to correct their position after application of the fixator. This study compared the primary stability of different constructions by defined flexibility loadings in four-point bending. Statistical evaluation was done by the student-t-test. When used as compression osteosynthesis, the original Stellbrink fixator is the most stable (100%), whereas the modified fixator reaches only 90% of the stability of the original. The better stability of the original Stellbrink fixator only becomes significant when the flexion becomes greater than 13 degrees. Used for distance osteosynthesis, the original Stellbrink fixator is significantly more stable. Clinical examples are presented.

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Biomechanical PhenomenaElasticityEquipment DesignExternal FixatorsFracture HealingHand InjuriesHumansOsteogenesis, DistractionRadiographyWeight-BearingComparative StudyJournal Article

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R Schäfer, C Braun, W Mittelmeier. 1998. [Comparative stability studies with the modified Stellbrink external fixator].. https://pubmed.ncbi.nlm.nih.gov/9541840/

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