Restricting Ankle Dorsiflexion in Orthoses to Improve Gait Symmetry in Patients with Inactive Forefoot Lever due to Weak Plantar Flexors
- Authors: Daniel Sabbagh1, Jörg Fior2, Ralf Gentz2
- Institutions: 1FIOR & GENTZ GmbH – Scientific Editing, 2FIOR & GENTZ GmbH – Management
- Form of Contribution: poster
- Congress: 25th Annual Meeting of the ESMAC
- Location: Sevilla, Spain
- Date: 28 September – 1 October 2016
- Expert Association: European Society of Movement Analysis in Adults and Children (ESMAC)
Summary: Using a case study, it is demonstrated that patients with weak plantar flexors need a dorsiflexion stop to restore a balanced gait. The forefoot lever is activated by limiting dorsiflexion with the aid of a defined dorsiflexion stop. At an orthosis without a defined dorsiflexion stop the forefoot lever remains inactive resulting in a prolonged stance phase and a delayed heel lift. By means of a video-supported gait analysis, it was established that a knee-ankle-foot orthosis (KAFO) with a defined dorsiflexion stop prevents an excessive dorsiflexion and enables a physiological heel lift. Thereby, the percentage of the stance phase can be reduced and the gait becomes more balanced.
Keywords: weak plantar flexors, orthoses, dorsiflexion stop, gait analysis, step symmetry