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[Oberst's block anesthesia]
Dominik Saul1, Jonathan Roch2, Wolfgang Lehmann2
1Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, Universitätsmedizin Göttingen, Georg-August-Universität, Robert-Koch-Straße 40, 37075, Göttingen, Deutschland. Dominik.saul@med.uni-goettingen.de.
Objective:
Complete anesthesia of the phalanges of the fingers and toes.
Indications:
All lesions distal to the metacarpophalangeal/metatarsophalangeal joint.
Contraindications:
Local infections at the injection site. Lesions proximal to the metacarpophalangeal/metatarsophalangeal joint.
Technique:
A subcutaneous deposit of a 0.5-2% local anesthetic is administered dorsoradially and dorsoulnarly at the base of the metacarpophalangeal/metatarsophalangeal joint. With the cannula advanced to palmar, an additional 0.5-1.5 ml is then administered to achieve complete anesthesia.
Postoperative Management:
The effect of the local anesthesia is self-limiting.
Results:
The Oberst block results in reliable anesthesia of the finger and toe. All surgical procedures distal to the metacarpophalangeal/metatarsophalangeal joint can be performed without pain.
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