Längen‑, Achs- und Torsionskorrekturen mit Distraktionsmarknägeln

Thaller, P. H.; Degen, N.; Fürmetz, J. und Wolf, F. (2017): Längen‑, Achs- und Torsionskorrekturen mit Distraktionsmarknägeln. In: Trauma und Berufskrankheit, Bd. 19, Nr. 4: S. 182-190

Abstract

Distraction osteogenesis using fully implantable lengthening nails is an established procedure for limb lengthening. Close to a dozen different systems are known. Lengthening nails differ primarily in the drive mechanism and in stroke, dimensions and materials. Experiences with five different lengthening nails reveal strengths and weaknesses. Requirements for future implants can be identified. The history of lengthening nails, basic principles of analysis, planning and techniques are followed by detailed descriptions of five different lengthening nails: FitboneA (R) (Wittenstein intens, Igersheim, Germany) SAA (sliding active actuator;electrically driven, sliding), FitboneA (R) TAA (Wittenstein intens, Igersheim, Germany, telescope active actuator;electrically driven, telescopic), ISKDA (R) (Intramedullary Skeletal Kinetic Distractor, Orthofix, Verona, Italy;roll ratchet driven, telescopic), PhenixA (R) (PhenixA (R) medical, Paris, France;magnetic driven, telescopic) and PreciceA (R) (NuVasive, San Diego, USA;magnetic driven with gearing, telescopic). The various drive mechanisms determine the reliability and also the minimum dimensions or the stroke of the different lengthening nails. With appropriate analysis, planning and technical implementation, deformation corrections are possible in addition to pure extension. The magnetic systems include the option for controlled backtracking. Only two systems (ISKD and Precice) are approved and freely available. Ideal lengthening nails should be precisely controllable with controlled distraction force and should enable controlled backtracking. The implants should fit into the dimensions of the medullary space. They should be stable even at low minimum dimensions and should provide the required stroke.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1436-6274
• Sprache: Deutsch