Zusammenfassung
Bei neuroischämischen oder neuropathischen Läsionen im Rahmen des diabetischen Fußsyndroms (DFS) wird häufig eine „Minoramputation“ notwendig. Diese kann je nach Definition von der Zehenamputation bis zur Syme-Amputation reichen. Häufig ist sie mit einer Nekrosektomie oder einem Débridement kombiniert. Es soll dabei möglichst viel vitales Gewebe v. a. des Fußskeletts erhalten werden, um ein frühes und optimales Rehabilitationsergebnis zu ermöglichen („Grenzzonenamputation“). Die Minoramputation ist zur Verhinderung von aszendierenden Infektionen von vitaler Bedeutung. Die stationäre und ambulante Behandlungsdauer werden abgekürzt.
Minoramputationen sind nur bei ausreichender arterieller Durchblutung und guter Blutzuckereinstellung sinnvoll. Sie sollten nicht von Anfängern durchgeführt werden, das Amputationsausmaß sollte so sparsam wie möglich sein, und es muss sich eine strukturierte, interdisziplinäre postoperative Nachsorge anschließen. Kontroversen bestehen bezüglich folgender Aspekte: Verwendung eines Tourniquets, Entfernung oder Belassen von Gelenkknorpel, primärer Wundverschluss oder offene Amputation, Entfernung der Sesambeine, Platzhalterfunktion von Zehen, aseptische proximale Sehnendurchtrennung, postoperative Wundbehandlung, Vakuumversiegelungstherapie, Antibiotikatherapie. Vor dem Hintergrund dieser offenen Fragen werden die wichtigsten Minoramputationstechniken beschrieben und diskutiert.
Abstract
Minor amputations are frequently performed for neuroischemic or neuropathic lesions of the diabetic foot. Depending on the definition used, minor amputations can range from toe to Syme amputations. Minor amputations are often combined with necrosectomy and débridement. For early and optimal rehabilitation, as much vital tissue as possible should be conserved, especially considering the skeletal structures of the foot (borderline amputation). Minor amputations are of utmost importance for the prevention of ascending infections and reduce the duration of clinical and outpatient treatment.
Minor amputations should be performed only by experienced surgeons and only if arterial perfusion is sufficient. They should be as tissue-conserving as possible and structured interdisciplinary postoperative care is mandatory. Metabolic control should be optimized. Controversial opinions exist with respect to the use of tourniquets, conservation or resection of cartilage and sesamoid bones, open amputation or primary closure of the wound, interdigital spacer function of toes, aseptic proximal transection of tendons, postoperative wound care, negative-pressure wound treatment and antibiotic therapy. In view of these controversies the most important minor amputation techniques are described and discussed.
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Rümenapf, G., Lang, W. & Morbach, S. Minoramputationen bei diabetischem Fußsyndrom. Orthopäde 38, 1160–1170 (2009). https://doi.org/10.1007/s00132-009-1502-y
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DOI: https://doi.org/10.1007/s00132-009-1502-y