OAISYS Medical Inc. grading guidelines used for triage purposes
| Recommendation | WOMAC score | Age, yr | Compartmental osteoarthritis radiographic grading (12) |
|---|---|---|---|
| Timely surgical referral* | < 40 | 60 | 6 |
| Good for surgical referral* | 40 | 60 | 6 |
| Urgent surgical referral* | 40 | 60 | 8 |
| Nonsurgical | < 40 | No specification | 6 |
WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.
↵* These categories were analyzed as surgical cases.