Transverse Plane Assessment of the Foot

Evaluation of foot deformities in the transverse plane requires examination of structural relationships that may persist from fetal positioning. Key anatomical considerations include the talar neck's relationship to the trochlear surface of the talus, which normally adducts from approximately 33 degrees in fetal life to 22 degrees in adult anatomy. Additional pathological patterns include metatarsal adductus, where the metatarsals remain excessively adducted at their tarsal articulations.

Patellar Position as Indicator of Rotation Source

The position of the patella during gait reveals whether rotational deformities originate above or below the knee joint. When internal rotation originates from hip-level deformities, the patellae assume a convergent or 'squinting' appearance when standing. Conversely, if the deformity originates below the knee, the patellae maintain anterior orientation and function primarily in the frontal plane.

Clinical Assessment Method Using the Heel-to-Toe Line

A practical screening technique involves drawing a line from the center of the heel through the foot's long axis while the foot is relaxed. This line should pass between the second and third toes; deviation lateral to the third toe suggests transverse plane pathology such as talar neck adductus or metatarsal adductus. This simple visual assessment aids in identifying structural abnormalities before they become functionally problematic.

Historical In-Toeing Treatment and Current Understanding

In-toeing conditions, historically treated with corrective orthotic devices, are now managed more conservatively. The primary functional concern in children is an increased risk of tripping and falls leading to facial injuries and soft tissue trauma. Modern clinical practice has shifted away from aggressive orthotic intervention due to evidence regarding potential complications from forced external rotation during treatment.

The Gateplate Orthotic: Mechanism and Abandonment

The gateplate was a rigid orthotic device positioned behind the first metatarsal head extending to the apex of the fifth toe, designed to block supination motion and force external hip rotation during gait. While the device demonstrated efficacy in some patients, its use was abandoned due to documented risks of avascular necrosis to the femoral head and neck from sustained external rotation near the hip's end-range position. Clinicians ultimately determined that potential long-term structural damage to the femoral head outweighed the benefits of correcting in-toeing gait patterns.

Ankle torsion

Taushif Patel

Supination-Pronation-Torsion

2 min read·5 key moments·PT6M22S video

Key Takeaways

•Transverse Plane Assessment of the Foot
•Patellar Position as Indicator of Rotation Source
•Clinical Assessment Method Using the Heel-to-Toe Line
•Historical In-Toeing Treatment and Current Understanding

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Frequently Asked Questions

What does this video teach about supination-pronation-torsion?

This video covers transverse plane assessment of the foot, patellar position as indicator of rotation source, clinical assessment method using the heel-to-toe line. It provides detailed instruction from Taushif Patel.

How long does it take to learn supination-pronation-torsion?

The basic mechanics can be understood in a single session, but developing reliable execution requires consistent drilling over weeks of practice. This 5-part breakdown helps structure your training by isolating each phase of the technique.