AOSpine North America and Cervical Spine Research Society Guidelines for Management of Cervical Spondylotic Myelopathy Based on Japanese Orthopaedic Association Severity
| Classification | JOA Score | Recommendation | Strength of Recommendation | Quality of Evidence |
|---|---|---|---|---|
| Mild CSM | 15 to 17 | Offer surgery or trial of structured rehabilitation | Weak | Very low to low |
| Moderate CSM | 12 to 14 | Surgical intervention | Strong | Moderate |
| Severe CSM | 0 to 11 | Surgical intervention | Strong | Moderate |
CSM, cervical spondylotic myelopathy; JOA, Japanese Orthopaedic Association.