AI-guided physiotherapy
Expert care. Always there. At home.
Guided rehabilitation after surgery, with nothing but a phone. No wearables. No sensors.
No one should recover alone. We’re putting expert guidance in every patient’s hands, starting with recovery after knee surgery, and building toward every joint, every injury, every recovery.
The problem
The operation is over. The outcome isn’t.
Ask any orthopaedic surgeon: how well a joint surgery turns out depends on what happens in the weeks after it, yet those weeks get a fraction of the attention, and almost none of the rigour.
Everywhere in the world, there are far too few physiotherapists for the patients who need them, so the care a patient gets depends on who happens to be within reach.
Most of recovery happens between appointments, unsupervised. Exercises get skipped, done wrong, or abandoned.
Progress is judged by eye and by memory. There is rarely an objective record of how a patient is actually moving.
What we’re building
Every patient recovers with an expert in the room.
Prop a phone up beside you and begin. Flexion sees every movement, coaches each rep in real time the way an expert would, and knows the moment a human needs to step in.
Guided at home
Spoken, step-by-step coaching in the patient’s own language, following the protocol their doctor and physiotherapist set: the same expert standard, every patient, every session.
Measured precisely
Range of motion, form and progress captured from the camera alone, every rep: an objective recovery record the patient and their clinicians can both see.
Clinicians in the loop
Pain, missed sessions or a range that stops improving reach the surgeon and physiotherapist right away, not at the next appointment.
Where we start
Now
Knee replacement and ACL reconstruction
Next
Hip, shoulder, back and neck
Beyond
Every recovery that involves movement
How it works
Three steps, no equipment.
- Your physiotherapist sets the plan
Which exercises, how many, and exactly how far to move this week, for example, straightening the knee from 90° to 0°.
- Prop the phone up and press start
Flexion watches the joint through the camera and talks you through each rep: when to hold, when to lower, when to stop.
- Every rep is counted and measured
A report with the range reached on every rep, and how the knee felt afterwards, goes to your physiotherapist the moment you finish.
Team
Built by an AI founder and a physician.

Ashok Karanth
Co-founder & CEO
Repeat founder: built edisn.ai, a computer-vision AI platform for sports, and led it to acquisition by Fubo (NYSE: FUBO).
- 25+ years building businesses in India and global markets
- IIM Calcutta · NITK

Dr. Udaya Kumar Maiya
Co-founder & CMO
Founding Medical Director of Portea, one of India’s largest home-healthcare companies, and Director of Bangalore Hospital.
- 35+ years in clinical medicine · mentor to physiotherapy PhDs
- MBBS · MD · DCCF (Université Paris-Saclay)
Built with orthopaedic surgeons and physiotherapists, on the globally standardised protocols they already use.
Get in touch
Three doors.
Partner with us
Hospitals, surgical centres and physiotherapists: we’re working closely with a small set of early partners to shape the product. If post-surgical outcomes are your problem too, we should talk.
Talk to usJoin the pilot
Recovering from a knee replacement in Bengaluru, or caring for someone who is? We’re inviting a small number of patients to use Flexion alongside their physiotherapist.
Ask about the pilotWork with us
We’re looking for physiotherapists and engineers who want to define a new category of care from day one.
Say helloOr simply write to contact@flexion.health.