Hallux Valgus

The patient is a 25-year-old woman. Her work in dentistry involves a standing position for a large part of the day. She made an appointment with the podiatrist because of a hallux valgus that is starting to bother her when walking but also from an aesthetic point of view. The hallux valgus is characterised by numerous deviations (deviation of first metatarsal in varus and big toe in varus).


Hallux Valgus

Biomechanical parameters


Swing phase

Ankle roll

How do you use DigitsolePro in your daily activity?

The practitioner uses DigitsolePro for the dynamic analysis (walking or running depending on the patient). He collects data on the patient’s walking or running activity using the web interface available online at https://app.DigitsolePro.tech. The results are then presented to the patient, allowing the patient to integrate them into the treatment process and facilitating acceptance.

Do you use other movement analysis systems?

The practitioner uses a camera to analyse the activity of athletes and movement analysis software.

What are the most frequently used parameters?

The sportpodiatrist analyses the gait line, the swing phase and the ankle roll (absolute).

  • The Gaitline provides a quick overall view of the walk and shows what abnormalities may be detected. The contact times are indicated by step phase, allowing one to visualize a potential difference between the two sides and monitor the evolution.
  • The swing phase is used to determine propulsion ratio and the muscles that create  the propulsion. In this way, the symmetry  between the two legs  can be verified. The swing phase is also used to analyze the length of  the stride and the similarity between the two sides. These data help in advising patients regarding daily exercises to avoid asymmetry (strength training, proprioceptivity, etc.).
  • The ankle roll allows for the visualisation angles when striking, flat footed and during propulsion in specific corrections. The illustrative graphic is explained to patients, who can see their deformations and the differences between the two sides.

What information was collected for this patient?

The severity of the deformation is especially clear in the right illustration, where we perceive the difference between the right and left foot.

We can also see that at times the patient tries to correct her walk, which explains the significant opening between the two lines during propulsion. There is insufficient support of the first radius.

The first radius is not providing the support it should, and forces are transferred to the middle radii. This results in a deviation of the alignment (in this case, deviation in supination), and a shorter right step (side where the hallux valgus is more pronounced).

We can perceive the difference between the two feet. The right foot is less propulsive, and there is muscle weakness on this side.

What examinations were carried out to complete analysis?

Fabrice Millet carried out his examinations in a conventional manner:

Questioning and examination while seated on a chair, examination standing on the podoscope and standing on one foot.

These examinations allowed him to measure the hallux valgus (increased on the right, estimated at 30° in the right) and to note that the first metatarsal is short, leading to insufficient support of the first radius.

While stationary, he observed an increased calcaneus valgus on the right and a midfoot valgus. Standing on one foot with a bent knee, the patient is very unstable, especially on the right, and a foot pronation is visible.

What diagnosis was made?

The hallux valgus is due to a short first radius combined with a valgus foot.

What treatment or solution was provided to the patient?

The practitioner made thermoformed orthopaedic soles to correct the calcaneus valgus and the midfoot valgus to prevent the collapse of the foot.

The corrections placed are a PSW, an arch support and a piece under and over the first radius.

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