Clinical symptoms and MR imaging findings of the patients with chemical radiculitis
| No. | Age (yr)/Sex | Symptoms | NR Lesion | Segment of Swelling | Location of Perianular Enhancement | ODI, Before | VAS, After | Provocation |
|---|---|---|---|---|---|---|---|---|
| 1 | 51/M | Lt buttock, calf pain | Lt L5 | DRG, exit | For and extra | 18.5 | 0.0 | SNI |
| 2 | 53/M | Lt leg pain | Lt L5 | Entire | For and extra | 33.4 | 0.0 | SNI |
| 3 | 62/M | Lt leg pain | Lt L5 | Entire | – | 44.6 | 25, 3 | SNI |
| 4 | 49/F | Rt buttock, lat thigh pain | Rt L5 | DRG, exit | For and extra | 25.4 | 13.2 | SNI |
| 5 | 69/M | Lt leg pain, numbness | Lt L5 | Entire | For and extra | 22.3 | 16.1 | Diskography |
| 6 | 53/M | Lt leg pain | Lt L5 | Exit | For and extra | 42.5 | 21.1 | SNI |
| 7 | 62/M | Rt leg pain | Rt L5 | Exit | Extra | 62.7 | 33.2 | SNI |
| 8 | 35/M | Rt leg pain, toe weakness | Rt L5 | Exit | For and extra | 22.3 | 11.1 | SNI |
| 9 | 76/F | Lt buttock, leg pain | Lt L5 | Entire | For and extra | 54.7 | 22.2 | Diskography |
| 10 | 32/M | Rt leg pain | Rt L5 | Exit | Extra | 33.6 | 31.3 | SNI |
| 11 | 51/F | Lt buttock, leg pain | Lt L5 | Exit | – | 18.4 | 0.0 | SNI |
| 12 | 56/F | Lt buttock, leg pain | Lt L5 | Exit | Extra | 44.5 | 22.1 | SNI |
| 13 | 69/F | Rt buttock, leg pain | Rt L5 | Entire | For and extra | 54.6 | No | SNI |
| 14 | 44/M | Lt leg pain | Lt L4 | DRG, exit | For and extra | No | 80% | SNI |
| 15 | 88/M | Rt leg pain | Rt L4 | Entire | For and extra | 51.5 | 11.2 | SNI |
| 16 | 54/F | Rt anterior, lat leg pain | Rt L4 | Trans | – | No | 90% | Diskography |
| 17 | 59/F | Lt leg pain | Lt L2 | Entire | For and extra | 56.6 | 0.0 | Diskography |
Note:—NR indicates nerve root; ODI, Oswestry Disability Index; VAS, visual analogue scale; Rt, right; Lt, left; exit, exit nerve root; Trans, transverse nerve root; Entire, entire segments of nerve root; For, foraminal zone; extra, extraforaminal zone; lat, lateral; SNI, selective nerve root injection; No, no response of symptoms; Before, before treatment; After, after treatment; %, degree of symptom improvement; –, no contrast study.