Varus Extrinsic (Bar)

Varus Extrinsic (Bar)

Rx form option box:

Varus extrinsic forefoot bar post

FUNCTIONS:
• Inverts the forefoot
• Twists frame into varus

CLINICAL INDICATIONS:
• Pronation Correction
• Hyper-mobile 1st ray
• Overpronation

A varus extrinsic (bar) post is semi-rigid to very rigid (45-75 Shore A) EVA material added to the inferior distal frame. It begins approximately 2cm proximal to the distal edge on the medial side and terminates at the distal frame. The extrinsic bar also decreases in height as it extends beneath the device to the lateral side of the orthosis. The exact height and amount of material added are dependent on the desired angulation. A forefoot extrinsic bar post becomes a ‘tip’ post when it has an angulation between 0°-2° because the minimal amount of material used. A tip post doesn’t extend to the lateral side. Because 2°-6° posts raise the distal medial frame, a “drop off” will be created. If higher varus correction is desired, this modification can be paired with intrinsic forefoot posting.

Note: Bar posts are recommended for frames calibrated to neutral or higher in thickness and not recommended for flexible or EVA frames.

CLINICAL PEARL
0° varus forefoot posts can also be applied to prevent orthotic frame ‘bite’ or cut in the shoe, which reduces the orthotic effectiveness and shortens shoe life.