What is forefoot varus posting?
The forefoot varus condition is such that the 1st toe joint is positioned off the ground. As body weight transfers onto the 1st toe joint, the ankle rolls inward and downward. This causes overpronation (rolling in) of the foot.
What is a forefoot valgus?
A constant structural eversion of the forefoot. This is a structural or positional deformity that is most common in the forefoot. This is an everted position of the forefoot relative to the rearfoot at the level of the midtarsal joint.
What is a valgus post?
A valgus post as a post which begins wider laterally and narrows medially. It usually begins near the tubercle of the fifth metatarsal and can extend as far up as the end of the fifth toe.
What does forefoot valgus wedge do?
The goal of orthotic therapy for patients with plantar fasciitis due to forefoot valgus is to decrease tension within the plantar fascia by preventing first ray dorsiflexion and allowing first ray plantarflexion. This is accomplished by raising or supporting the lateral forefoot with a valgus wedge.
What is a forefoot Supinatus?
The supination of the forefoot that develops with adult acquired flatfoot is defined as forefoot supinatus. This deformity is an acquired soft tissue adaptation in which the forefoot is inverted on the rearfoot. Forefoot supinatus is a reducible deformity.
What causes forefoot varus?
A true forefoot varus is a structural deformity caused by failure of the talar head and neck to derotate during early childhood development.
What is rearfoot posting?
When it was introduced in the early 1960’s, the rearfoot post was intended to invert the rearfoot of the orthotic (and the foot) a specific number of degrees enabling the subtalar joint to function around its neutral position. A rearfoot varus of nine degrees was given a varus post of nine degrees.
What is a Thomas heel?
Thomas heel a shoe correction consisting of a heel one half inch longer and an eighth to a sixth of an inch higher on the inside; used to bring the heel of the foot into varus and to prevent depression in the region of the head of the talus.
What causes forefoot Supinatus?
A forefoot varus differs from forefoot supinatus in that a forefoot varus is a congenital osseous deformity that induces subtalar joint pronation, whereas forefoot supinatus is acquired and develops because of subtalar joint pronation.
What is a forefoot Varus or medial posting?
However, if a true forefoot varus is present the traditional approach is to use a forefoot varus or medial posting to bring the ground up to the foot, so that the rearfoot does not have to pronate to bring the medial side of the forefoot to the ground.
What foot orthoses will fit a valgus?
Functional foot orthoses with rearfoot post and lateral forefoot post – for a true valgus this will be a ‘wedge’ and for a plantarflexed first ray, it will be a 2-5 ‘bar’. May need to compromise – lateral forefoot posting above 10 – 15 degrees may not fit in the shoe.
How does a valgus post work?
A forefoot valgus post works by lifting the lateral column higher off of the ground than if there had been no post. An intrinsic post achieves this by a downward curvature at the distal end. (Jeff called this a radius).
What is the difference between a forefoot valgus and intrinsic post?
A forefoot valgus post works by lifting the lateral column higher off of the ground than if there had been no post. An intrinsic post achieves this by a downward curvature at the distal end.