Ludloff-Hohmann characters
The Ludloff-Hohmann sign is named after the physicians Karl Ludloff and Georg Hohmann , also known as the Ludloff dislocation sign or Ludloff-Hohmann test .
It is a test done on newborns to diagnose any hip dislocation. It is normally not possible in the infant to fully extend the knee joint when the hip joint is in 90 ° flexion and 70 ° abduction. If this is possible, however, it is an indication of an "unstable hip joint" and a hip dislocation. During the test, the unstable femoral head can dislocate under the pull of the ischocrural muscles and slide into the gluteal muscles. A pure delay in hip maturation cannot be recognized, and repeated testing can damage the joint edge (joint lip / labrum) and the femoral head.
Since the advent of the hip ultrasound according to Graf and the screening examination as part of the U3 child preventive check -up , a much more sensitive, precise and unproblematic procedure has been available, so that the test is now only carried out in exceptional cases.
Individual evidence
- ↑ Werner Konermann, Gerd Gruber, Christian Tschauner: The hip maturation disorder: diagnosis and therapy . Springer-Verlag, 2013, ISBN 978-3-642-58695-8 ( google.de [accessed December 1, 2017]).
- ↑ Hartmut Gaulrapp, Gregor Schönecker, Thomas Wirth: The painful children's hip . Walter de Gruyter GmbH & Co KG, 2017, ISBN 978-3-11-047059-8 ( google.de [accessed on December 1, 2017]).
- ↑ Dietrich Tönnis: Congenital hip dysplasia and hip dislocation in children and adults: basics, diagnostics, conservative and surgical treatment . Springer-Verlag, 2013, ISBN 978-3-662-06621-8 ( google.de [accessed December 1, 2017]).