Table 4 The predictive strength of simplified 3 and 4-grade fat infiltration systems in lumbar disc herniation outcome
Effect (strength) in predicting hernia | |
|---|---|
Simplified 3-grade fat infiltration system | |
Grade 1: < 10% fat infiltration (normal) | nA |
Grade2: 10–50% fat infiltration (moderate) | nA |
Grade 3: < 50% fat infiltration (severe) | nA |
Simplified 4-grade fat infiltration system | |
Grade 1: < 10% fat infiltration (normal) | nA |
Grade 2: 10–30% fat infiltration (mild) | 5.806 (2.061 – 16.359) times |
Grade 3: 30–50% fat infiltration (moderate) | 36.99 (5.700 – 240.062) times |
Grade 4: > 50% fat infiltration (severe) | nA |