1. What is the Oswestry Disability Index?

The Oswestry Disability Index (ODI) is a widely used questionnaire for measuring the degree of disability and quality of life in patients with low back pain. It assesses how back pain affects daily activities.

2. How Does the Calculator Work?

The calculator uses the ODI equation:

Where:

• \( Sum Score \) — Total points from ODI questionnaire (0-50)
• \( 50 \) — Maximum possible score
• \( 100 \) — Conversion to percentage

Explanation: The equation converts the raw sum score into a percentage that represents the level of disability due to low back pain.

3. Importance of ODI Score

Details: The ODI score helps clinicians assess functional disability, monitor treatment progress, and make informed decisions about patient care and rehabilitation strategies.

4. Using the Calculator

Tips: Enter the sum score obtained from the ODI questionnaire. The score must be between 0 and 50 points. The calculator will automatically compute the percentage disability score.

5. Frequently Asked Questions (FAQ)

Q1: What do different ODI scores indicate?
A: 0-20% minimal disability, 21-40% moderate disability, 41-60% severe disability, 61-80% crippled, 81-100% bed-bound or exaggerating symptoms.

Q2: How is the sum score calculated?
A: The sum score is obtained from 10 sections of the ODI questionnaire, with each section scored 0-5 points, totaling 50 maximum points.

Q3: When should ODI assessment be performed?
A: At initial assessment, during treatment follow-ups, and after rehabilitation to monitor progress and treatment effectiveness.

Q4: Are there limitations to the ODI?
A: The ODI may be less sensitive to small changes in disability and can be influenced by patient's subjective perception of pain and function.

Q5: Can ODI be used for all back pain patients?
A: ODI is validated for chronic low back pain patients but may need adaptation for acute conditions or specific patient populations.