21 October 2023 : Clinical Research
Paravertebral Muscle Morphology in L4-L5 Disc Herniation: Insights from the Michigan State University Classification
Pei-yu Du1AB, Yong-wang Zhang2AB, Xu-hao Cao3B, Yue-lin Liu3C, Yun-tao Yan2CD, Lu Liu2EF, Shuang-qing Du2AFG*DOI: 10.12659/MSM.941937
Med Sci Monit 2023; 29:e941937
Table 1 Michigan State University classification of 121 L4–L5 lumbar disc herniation patients.
| Grade | Zone | ||
|---|---|---|---|
| A | B | C | |
| 1 | 18 | 7 | 11 |
| 2 | 31 | 30 | 7 |
| 3 | 12 | 5 | 0 |