The pivot-shift,
made measurable.

Detect and grade ACL tears in minutes, by any operator. Built on PreciX's US-patented synchronised ultrasound + IMU architecture.

Book an assessment Read the evidence HSA-approved (Class A)
Regulated & verified Clinical compliance
HSA-approved Singapore · Class A
Non-invasive Surface-worn
Portable Can be used anywhere with WiFi connection
Operator-independent Repeatable
Patented technology Method & device for measuring joint movement
US
United States of America 12446799
SG
Singapore 10201810156P
AU
Australia 2019378567
CN
China ZL 201980083060.5
MC
Macao J/008708
View all
AUC
0.89
Low- vs high-grade pivot-shift classification on a held-out patient cohort (SGH).
Sensitivity
0 %
High-grade pivot-shift detection (Grades 2/3) on unseen patients.
Assessment time
0 min
Median, in-clinic, from device-on to report generation.
Assessments to date
0 +
Across 11 partner institutions, 4 countries, since 2023.
Research
0 papers
Validation, reliability, longitudinal outcomes. See research index.
Workflow

One protocol.
Four steps.

A standard clinic-room assessment. No imaging suite needed.

Step 01

Pair

GATOR pairs over WiFi

Instant Connection (with Wifi Connection)
Step 02

Position

Strap GATOR to the thighs and shins.

60 s · Velcro strap
Step 03

Calibrate and Capture

Start the Assessment. Calibrate the devices. Collects IMU data at 800 Hz (6-axis IMU data), Collects ultrasound data at 12 fps

5 min · 800 Hz
Step 04

Report

A PDF report. Pivot Shift Grade + other metrics.

Instant processing· PDF
For whom

Built for the people
who already know the knee.

PreciX adapts to three primary workflows.

UC01 · Sports medicine /1.1

Orthopaedic surgeons

Quantified pre-op baselines, post-op grade tracking, and pivot shift on reports.

Quantified pre-op baseline
Post-op grade tracking
Pivot Shift Grading
UC02 · Gait screening /1.2

Physiotherapists

GATOR Prime configuration. High-throughput gait screening, symmetry tracking, and return-to-sport criteria for physiotherapy workflows.

Gait + mobility screening
Symmetry tracking
Return-to-sport criteria
Patient-shareable curves
UC03 · Performance /1.3

Athletes & teams

Pre-season baselines, load monitoring, and confidential roster-level dashboards.

Pre-season baselines
Load & recovery monitoring
Roster-level dashboards
Confidential athlete data
Clinician voices

The people who used to feel for it.
Now they measure it.

From four practice settings — academic, private, sports medicine, rehab.

"

GATOR is an effective and informative assessment tool. It has helped me and my patients evaluate objectively the post-surgical recovery and progress, guiding us in the rehabilitation program.

TS
Dr Tan Tze Sheng Edwin
Orthopaedic Surgeon · Auspicium Orthopaedic, Mt Elizabeth
"

GATOR could be used by many people in the clinic. Those performing arthroplasty and sports-medicine reconstructive surgery would find it useful in examining their outcomes.

EW
Dr Edward M. Wojtys
Professor · University of Michigan Health
"

As a physiotherapist, I am always looking for ways to quantify rehab — both for myself and so patients can see, simply and clearly, that they're on the road to recovery.

TW
Timo Wu
Physiotherapy Clinical Lead · Yong Kang TCM & Physio
Read all 14 clinician testimonials
Patient voices

For patients, a clearer
picture of recovery.

Most have never seen their own biomechanics. After a PreciX assessment, they understand exactly what their knee is doing.

"

The GATOR assessment gave me a reality check. I felt back-to-normal, but the result showed other parts of my body were compensating. It helped me adjust my physiotherapy and be more mindful of my recovery.

MA
Monika Anderegg
Patient · Teacher
"

It gave me a clearer understanding of my condition. I feel more confident now in taking the necessary steps to address my knee health.

RW
Rachel Wong
Patient · Engineer
"

A great session to find out more about my knee health. I like being able to see exactly how my knees move and where the asymmetry is.

GR
Grealish
Patient · Professional runner
Built with clinicians

Co-developed with the institutions
who set the standard.

Every protocol, every metric, every threshold was developed with leading orthopaedic teams. Active research collaborations across four countries.

Stanford
University
USA Ortho · Sports Med
University of
Pittsburgh
USA Biomechanics
University of
Michigan
USA Sports Med
Kyoto
University
JPN Orthopaedics
Aix-Marseille
University
FRA Movement Sci.
Singapore
General Hospital
SGP Clinical Trial
A*STAR
SGP Sensor Eng.
National Univ.
Hospital
SGP Rehab Med.
Clinical collaborators

The clinicians
shaping the protocol.

All collaborators
Assoc Prof Darren Tay Keng Jin
Assoc Prof Darren Tay Keng Jin
Head & Senior Consultant, Orthopaedic Surgery
Singapore General Hospital
Asst Prof Wong Keng Lin, Francis
Asst Prof Wong Keng Lin, Francis
Research Director
Sengkang General Hospital
Dr Constance Chu
Dr Constance Chu
Professor & Vice Chair of Research, Orthopaedic Surgery
Stanford University
Asst Prof Hamid Razak
Asst Prof Hamid Razak
Orthopaedic Surgeon
Sengkang General Hospital
Dr Chia Zi Yang
Dr Chia Zi Yang
Consultant, Orthopaedic Surgery
Singapore General Hospital
Dr Marc Tompkins
Dr Marc Tompkins
Associate Professor
University of Michigan
Dr Grant Gregory Schroeder
Dr Grant Gregory Schroeder
Orthopaedic Surgery Resident
Stanford Health Care
Book in person

Available at leading clinics
across Singapore.

Five health centres run PreciX assessments today. Book directly through any partner — no referral required.

Find a clinic near you
01
Parkway Shenton
Executive health screening
Singapore Book
02
Thomson Specialists
Health-screening clinic
Singapore Book
03
CHI Health
Outpatient screening
Singapore Book
04
Mt Elizabeth Medical Centre
Auspicium Orthopaedic
Singapore Book
05
Mt Elizabeth Novena
International Orthopaedic Clinic
Singapore Book

Bring objective
knee assessment to your practice.

Thirty-minute clinical demonstration, on-site or video. We bring a device, your patient receives a report, your team decides.

Book a demo Talk to clinical affairs
Response within 1 business day Replies from clinical, not sales NDA on request