Embryological Etiology of Primus Metatarsus Supinatus (Rothbarts Foot)
In a paper I published in the Journal of Bodywork and Movement Therapies (2002), I was the first researcher to link Alpha Angles less than 35 degrees to Rothbarts Foot.
This research was part of a series of discoveries that ultimately led to a therapy that, in many cases, permanently eliminates chronic musculoskeletal pain without the use of drugs or surgery. This therapy is called Rothbart Proprioceptive Therapy, in which I use a series of tests, proprietary computer analyses, custom designed Rothbart Proprioceptive Insoles and ongoing monitoring to address all of the changes in the patients condition and necessary changes in prescriptions, until the chronic muscle and/or joint pain is eliminated.
Review of the Literature
Measuring 1006 Egyptian Feet, Sewell (1905) was the first to publish on the substantial variances in the twist (torsion) of the talar head relative to its body, referred to as the alpha angle (See Plate 1A and Plate 2A below).
Subsequently, Straus (1927) reportedalpha angles ranging from 26 to 43 degrees, McPoil (1987) from 24 to 51degrees, Sarrafian (1993) from 30 to 65 degrees. Tax (1980) and Hlavac(1970) proposed that the twist in the talar head determined thestructural position of the forefoot (i.e., forefoot varum or forefootvalgum).
I suggested (JMMT, 2002) that lower alpha angles position thenavicular in supinatus, the internal cuneiform insupinatus, the metatarsal in supinatus, and ultimately, the hallux in supinatus. I termed this supinatus (structural elevation and inversion) of the 1stmetatarsal/hallux Primus Metatarsus Elevatus (also known as Rothbarts Foot).
However, subsequent to the publishing of this paper, a Google search of the internet archivesuncovered a rather obscure paper describing a positional deformity of the 1st metatarsal as Primus Metatarsus Elevatus. Hence to avoid any confusion, I renamed the structural foot deformity that I discovered, Primus Metatarsus Supinatus.
I have linked lower alpha angles (See Plate 1A above) to the Primus Metatarsus Supinatus foot structure:
- Alpha angles below 35 degrees places the medial facet of the navicular bone into supinatus (See Plate 1B above)
- Navicular Supinatus places the internal cuneiform into supinatus (See Plate 1C above)
- Cuneiform supinatus places the 1st metatarsal into supinatus (See Plate 1D above)
I have linked higher alpha angles (See Plate 2A above) to the Plantargrade foot structure:
- Alpha angles between 40-45 degrees places the medial facet of the navicular bone into normalus (See Plate 2B above)
- Navicular normalus places the internal cuneiform into normalus (See Plate 2D above)
- Cuneiform normalus places the 1st metatarsal into a plantargrade position (See Plate 2D above)
Professor/Dr. Brian A. Rothbart
Chronic Pain Elimination Specialist
Discovered the Rothbarts Foot and PreClinical Clubfoot Deformity
Developer of Rothbart Proprioceptive Therapy
Designer of Rothbart Proprioceptive Insoles
Founder of International Academy of Rothbart Proprioceptive Therapy
Author of Forever Free From Chronic Pain
Sign Up Now to get your free chapter from Professor Rothbart's book, Forever Free From Chronic Pain
References
1. Sewell RS. A Study of the Astragalus (Talus). Part IV. Journal of Anatomy and Physiology 40:152, 1906.
2. McPoil T et.al. Anatomical characteristics of the talus in relation to forefoot deformities. Journal American Podiatric Medical Association 77:77-81, 1987.
3. Sarrafian SK. Anatomy of the Foot and Ankle. JB Lippincott, Philadelphia, 1993.
4. Tax HR. Podopediatrics. Williams and Wilkins, Baltimore, 1980.
5. Hlavac HF. Compensated Forefoot Varus. Journal American Podiatry Association 60:229, 1970.
6. Rothbart BA, 2002. Medial Column Foot Systems: An Innovative Tool for Improving Posture. Journal of Bodywork and Movement Therapies (6)1:37-46
Posted by rothbart at 4/6/2009 3:47 PM 
Categories: Rothbarts Foot PreClinical Clubfoot Deformity, Rothartsfoot PreClinical Clubfoot Flatfoot
Tags: Rothbarts Foot Proprioceptive Insoles Etiology of Rothbarts Foot Alpha Angle
Categories: Rothbarts Foot PreClinical Clubfoot Deformity, Rothartsfoot PreClinical Clubfoot Flatfoot
Tags: Rothbarts Foot Proprioceptive Insoles Etiology of Rothbarts Foot Alpha Angle
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