DP and CT group were injected with compound betamethasone(7 mg/mL) into sacroiliac joints in a different guided way and followed up for 90 days.

• 按不同的引导方式对骶髂关节进行注射复方倍他米松注射液(7 mg/mL)治疗,并与同期非注射治疗组进行90 d随访观察。