Ambulatory mJOA Prediction Calculator

Enter pre-operative scores and patient factors below to generate a model-based estimate of ambulatory function improvement by 1 year post-surgery.

Results appear on the Results page after submission.

Go to Results
How it works

Submit inputs → model runs → view results


What you’ll see: A plain-language prediction (“likely to improve” vs “likely to not improve”) and the model’s probabilities.


Disclaimer: This tool is for research/decision support and does not replace clinical judgment.

Enter patient data

Fill in the form and click Predict. You’ll be redirected to the results page automatically.

    mJOA

    Pre-Operative Upper Extremity mJOA Score


    5


    0 Inability to move hands
    1 Inability to eat with a spoon but able to move hands
    2 Inability to button shirt but able to eat with a spoon
    3 Able to button shirt with great difficulty
    4 Able to button shirt with slight difficulty
    5 No dysfunction

    Pre-Operative Ambulatory mJOA Score


    7


    0 Complete loss of motor and sensory function
    1 Sensory preservation without ability to move legs
    2 Able to move legs but unable to walk
    3 Able to walk on flat floor with a walking aid (such as a cane or crutch)
    4 Able to walk up and/or down stairs with hand rail
    5 Moderate to significant lack of stability but able to walk up and/or down stairs without hand rail
    6 Mild lack of stability but walks unaided with smooth reciprocation
    7 No dysfunction

    Sensory Dysfunction mJOA Score


    3


    0 Complete loss of hand sensation
    1 Severe sensory loss or pain
    2 Mild sensory loss
    3 No sensory loss

    Sphincter Dysfunction mJOA Score


    3


    0 Inability to micturate voluntarily
    1 Marked difficulty with micturition
    2 Mild to moderate difficulty with micturition
    3 Normal micturition

    Patient Demographics & Scores

    Age

    Height (cm)

    Weight (kg)

    Calculated BMI

    Number of Affected Vertebral Levels

    Do you have motor or sensory deficits?

    EQ-5D Mobility Score


    1 No problems walking about
    2 Slight problems walking about
    3 Moderate problems walking about
    4 Severe problems walking about
    5 Unable to walk about

    SF-12 Physical Component Score (PCS)


    50


    Higher PCS scores indicate better perceived physical health and physical functioning.

    SF-12 Mental Component Score (MCS)


    50


    Higher MCS scores indicate better perceived mental health and emotional well-being.

    Privacy

    Privacy note: this site does not intentionally store the patient inputs you enter on this page. A temporary “result token” is created to display the prediction on the Results page, and it expires automatically (after 2 minutes). Do not enter names, MRNs, or other direct identifiers.

    Troubleshooting
    I submitted the form but wasn’t redirected to Results.

    Click the Go to Results button at the top of this page. If that doesn’t work, try submitting again, or refresh the page and resubmit.

    Results page says “No result ID provided” or “Result expired.”

    Results are kept temporarily (for 2 minutes). If you waited too long or opened the Results page directly, go back to Calculate and submit the form again.

    Results page says “Prediction failed.”

    This usually means the model service couldn’t be reached. If you are testing locally, confirm your local server is running and your tunnel is active. Then resubmit the form.

    Run Again