The First Quantitative Standard for Forefoot Surgical Planning

Planimetrics delivers the first objective measurement of forefoot joint laxity — transforming hallux valgus surgery from subjective palpation into data-driven, defensible decisions.

Hallux Valgus Surgery Is Still Planned by Hand

Think of a wobbly table. A single leg that is too mobile makes the whole table unstable — no matter how perfectly the top is built. The forefoot behaves the same way.

When the first ray is too mobile, the entire forefoot destabilises — driving hallux valgus and overloading the lesser metatarsals, the source of painful metatarsalgia. Today this instability is judged by hand: 40% variability between surgeons, zero decision support, zero defensible record.

Measure. Score. Decide.

Planimetrics is a point-of-care arthrometer that measures two predictive scores in under 3 minutes. 5× more precise than manual examination. Automatic and reproducible.

Place the RayStore arthrometer on the patient's forefoot. FRIS and LTS scores computed automatically in under 3 minutes.

The Planimetrics algorithm ranks procedure probabilities based on validated biomechanical models and normative data.

An auto-generated clinical report delivers a ranked surgical recommendation — a defensible record for the surgeon, clinic, and insurer.

Measures how far the first ray displaces under a controlled applied force — quantifying joint laxity in millimetres. The primary driver of hallux valgus recurrence.

Maps load distribution across the metatarsals (M1–M5) using pressure-sensor arrays — revealing the overload that causes metatarsalgia and guiding technique selection.

Get a quantitative FRIS/LTS score for every patient. Produce a defensible record. Reduce 40% inter-surgeon variability.

A $100 examination that prevents a $12,866 wrong surgery. Auto-generated reports. No secretary write-up. New reimbursement available today.

CPT code 97750 billing pathway confirmed. Reduce revision surgery costs and post-operative care spend.

Understand your surgical options with data. No more conflicting opinions. A clear, objective recommendation.

A skateboard injury brought Quentin to Dr. Assal 10 years ago. The problem became the mission. Inventor on both PCT families. Built first functional prototypes within 4 months.

ISO 13485 regulatory expertise. Translated the prototype into a certifiable product architecture. Leads hardware, quality system, and industrialization.

200+ hallux valgus cases/year. Co-inventor of the clinical concept. First-site operator. KOL anchor across SFAS, EFAS and AO Foundation.