Frame 1 - Foot is placed in its 'apparent' anatomical neutral position with the patient off weight bering (in this case supine). Note that the foot is positioned in its compensated position (positionally plantarflexed 1st metatarsal - See arrow). This commonly occurs in patients with the Primus Metatarsus Supinatus foot who are bracers.
Frame 2 - plaster strips being applied to the foot
Frame 3 - foot is repositioned as it was in Frame 1 The plantarflexed 1st metatarsal is captured in the cast (See arrow).
Frame 4 - the finished slipper cast with a 'captured' plantarflexed 1st metatarsal. If an orthotic is manufactured from this cast, the orthotic will maintain the foot in its compensated position.
Prof/Dr Brian A Rothbart Chronic Pain Elimination Specialist
Discovered the Rothbarts Foot Structure and the PreClinical Clubfoot Deformity
Developer of Rothbart Proprioceptive Therapy
Inventor and Designer of Rothbart Proprioceptive Insoles
Founder of International Academy of Rothbart Proprioceptive Therapy
Author of Forever Free From Chronic Pain