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In study · Certification in progress

Knee recovery,
measured at home.

Guided knee checks on the patient’s own phone, nothing to install. The clinical team sees who needs attention, and why.

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ROMI clinical portal caseload: patients listed by review priority, with knee bend, walking test and pain values and the reason each was flagged
ROMI patient app home screen: a knee bend gauge reading 110 degrees within the expected range, the next check-in and recent results

Recovery is continuous. Follow-up isn’t.

Weeks can pass between clinical reviews. ROMI fills that gap with regular, objective measurements, so a change is seen when it happens instead of at the next booked appointment.

One set of tools across knee care.

Pathways, check-in schedules and review thresholds are configured per service, so ROMI fits the care you already give.

  • Knee replacement

    Baseline before surgery, then regular checks through recovery against an expected range.

  • Osteoarthritis

    Follow function and pain over months during conservative management, not just at review.

  • Rehab after injury

    See whether movement and strength are returning between physiotherapy sessions.

  • Physiotherapy programmes

    Set exercises, see what patients actually log, and check the effect on their measures.

  • GP and MSK follow-up

    A structured knee assessment and routing to the right service when something changes.

For patients

A few minutes at home. No kit, no clinic visit.

Prop the phone up and follow the guide. ROMI measures the movement and shows how the knee is getting on.

  • Guided set-upClear guidance on distance, height and lighting for every check, with live feedback until the position is right.
  • Hands-freeRecording starts when you are in place. A voice counts you through and stops when you are done.
  • Daily check-inPain, daily activities and goals in a minute or two, alongside the camera results.
  • Safety built inRed-flag symptoms get clear advice straight away, including when to call NHS 111 or 999, and the care team is alerted.
  • MessagesAsk the care team a question, and see replies and plan changes in one place.
  • Laptop to phoneStarted on a computer? Scan a QR code and carry on with the phone’s camera.
Knee bend check in progress on a simulated recording: a seated figure side-on with the tracked hip, knee and ankle drawn over it, the knee bent to around 100 degrees, and the best angle so far
Knee bend, measured live
Progress screen charting knee bend from before surgery to week 6, rising through the shaded expected range
Progress against the expected range

Standard knee tests. One phone.

Familiar clinical tests, guided on screen and measured from the camera, with a quality rating on every result. Unclear recordings are repeated, not guessed.

Knee bend

How far the knee bends and how close it gets to straight. Measured side-on while seated, bent and straightened twice, best value kept. Below, an example result as the patient sees it.

Knee bend
104°
Straightening gap
3.3°
Repetitions
2
Measurement quality
Good

0-140degrees

Timed Up and Go

Stand, walk three metres, turn, walk back and sit, timed from the video.

3metres

Chair stands

How many times you can stand up from a chair in 30 seconds.

30seconds

Walking

Cadence, step evenness and how much the knee bends as you walk past the camera.

stepsper minute

Knee alignment

Knock-knee or bow-leg direction while standing and moving, from a front-on view.

L · Rboth knees

Questionnaires and symptom check

Pain scores, daily activities and personal goals, with standard scores such as the Oxford Knee Score or KOOS JR where your service holds a licence. A symptom check screens for red flags every time.

PROMs

Wound photos

After surgery, patients can send a photo of the wound. A quality check helps them take a usable picture, and a clinician looks at every one. The app never gives a diagnosis.

Photoreviewed by a clinician

Exercises set by the physio, logged by the patient.

Physiotherapists choose the exercises, sets, repetitions and how often. Patients see the plan in the app with how-to guidance and tick off each session.

  • Specific, editable plansAdd, change or remove exercises and save. The patient is notified of the new plan.
  • Adherence you can seeSeven days of logged sessions per exercise, next to the knee measures they are meant to improve.
Rehab plan tab in the clinical portal: exercises such as heel slides and static quads with sets, repetitions, times a day, the last seven days of logged sessions and 37 percent adherence
Patient exercises screen listing heel slides, static quads and straight leg raise, each with a button to log a session

For clinical teams

See who needs attention, and why.

Each patient’s recovery as a trajectory against their own baseline and an expected range. Flags come with the evidence, not an opaque score.

Patient record in the clinical portal: an amber flag for a knee bend plateau below the expected range, status tiles for each measure, a flexion chart and an auto-drafted summary
  • Prioritised caseloadPatients needing prompt review rise to the top, then those to review when appropriate, so time goes where it is needed.
  • Alerts with evidenceEvery flag shows the rule that raised it, the inputs and their quality, and the recording behind it.
  • A person decidesClinicians record an outcome on each flag and can message the patient in the same step.
  • Wound review queueWound photos wait in a queue until a clinician has looked at them and recorded an outcome.
  • GP and MSK pathwayA structured knee assessment for primary care and first contact practitioners, with routing to the right service.
  • Audit logSubmissions, reviews, decisions, clinical notes and messages are recorded with who did what and when.

Every flag shows its working.

Why it was raised, the values that triggered it, the raw movement signal and a place to record the decision. Thresholds are set per pathway and every alert is a prompt to review, not a finding.

Alert detail: knee flexion worsened by 22 degrees since the previous reliable assessment, with the rule, input values and quality, the recorded knee angle signal, and outcome options for the clinician

From a phone at home to the right clinician.

  1. Measure

    Guided checks on the patient’s own phone. By default only joint positions leave the device, not video.

  2. Track

    Each result joins a personal trajectory, compared with the patient’s baseline and an expected range.

  3. Flag

    Plateaus, sudden changes, red-flag symptoms and repeated poor recordings are highlighted, with the evidence attached.

  4. Decide

    The right clinician reviews the flag and decides what happens next. Every decision is recorded.

Built around clinical judgement.

ROMI measures, tracks and flags. It never diagnoses, and it never hides the numbers behind a single score.

A quality rating on every result
Each value carries a confidence level. Low-quality recordings are flagged for a retake rather than trusted.
Transparent rules
Pathways, expected ranges and thresholds are visible to the team, versioned, and documented alongside the published evidence they draw on.
Private by design
Pose tracking runs on the phone, in the browser. Video is not uploaded unless a service chooses to switch that on.

Try the demo

Explore the patient app and the clinical portal with synthetic patients. Switch between a patient, a surgeon, a physiotherapist and a GP to see each side.

Try the demo

Scan to try it on your phone

Research

We are testing ROMI with adults having knee replacement surgery.

About the study

Talk to us about ROMI

We would like to hear from orthopaedic, physiotherapy, MSK and primary-care teams who follow people with knee problems between appointments.

hello@fuullabs.co.uk

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