Mainz orthosis

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Mainz orthosis

The Mainz orthosis (also Mainz hip relief or MHE orthosis or splint) is a further development of the Thomas splint , which is used to relieve the hip joint . It was developed in 1975 by R. Volkert. The splint is used to treat Perthes' disease or femoral head necrosis in children and adolescents. This is about 'centering' the femoral head.

It differs from the normal Thomas splint in the so-called PTF ring shaft and the abducted and internally rotated forced posture of the leg. In contrast to Thomas braces, Mainz braces do not have the option of a knee joint , so that it is not possible to bend the knee while sitting.

The leg does not float completely in the air, but is attached to a steel spring by means of the shoe, which ensures extension and internal rotation of the leg, but prevents stress. Instead of a shoe, it can also be fastened with an ankle cuff so that at least the forefoot and toes can remain free. A height of 6 to 8 cm is required on the healthy leg.

The use of orthoses for Perthes disease is declining, as treatment with walking aids and wheelchairs leads to the same healing results.

Individual evidence

  1. R. Volkert: Orthopedic constructions for leg and hip joint relief in the mirror of the times . In: Michael A. Rauschmann, Klaus-Dieter Thomann, Ludwig Zichner (ed.): History of conservative procedures on the locomotor organs (3rd year book of the German Orthopedic History and Research Museum). Springer, Berlin / Heidelberg 2001, ISBN 978-3-7985-1267-2 , pp. 105-110; doi : 10.1007 / 978-3-642-57623-2_9 with preview of the beginning of the chapter (or limited preview in the Google book search).
  2. Perthes disease, types of treatment. German Perthes disease initiative on the web; accessed on February 28, 2016.