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| Items | Group C | Group TD | Group RF | Group RN |
|---|---|---|---|---|
| Nausea and vomiting | 2 cases | 1 case | 2 cases | 1 case |
| Constipation | 1 case | 1 case | 1 case | 1 case |
Notes.
Group C, drug control group (basic drugs, gabapentine capsules, tramadol hydrochloride).
Group TD, nerve block therapy drug group.
Group RF, pulsed radiofrequency group.
Group RN, combined treatment group (pulsed radiofrequency combined with nerve block therapy.
