On the other hand, Exclusion criteria: 1) Patients treated with another procedure in the same day of FJI treatment; 2) Patients treated in other departments in the same day of FJI treatment; 3) Patients newly administered with opioids from the day of FJI treatment to the evaluation day; 4) Patients not examined with MRI; 5) patients without revisit records within three months.
FJI: FJI was conducted by four specialists in the Department of Anesthesiology and Pain Medicine.
Clinical Assessment: Based on medical examination records, medical progress notes, and procedure records in the EMRs of patients, sex, age, histories of low back surgery, complaining of neurogenic claudication, symptomatic sites of patients, FJI sites, number of sites of FJI, triamcinolone dosage, numeric rating scale (NRS; 0 - no pain, 10 - worst possible pain) before and after treatment, facet joint capsule rupture during treatment, and improvement of neurogenic claudication after treatment, were examined.
Wilcoxon signed rank test was employed to analyze the difference of Numeric Rating Scale (NRS) before and after FJI. Patients who showed more than 30% decrease in NRS after, compared to before, FJI were assigned to effect group.
FJI was averagely conducted 2.76 +-1.34 sites per patient.
This effect was not significantly related to sex (p=0.533), complaints of neurogenic claudication (p=0.860), number of sites of FJI (p=0.560), number of spinal levels of FJI (p=0.393), and triamcinolone dosage (p=0.750).
reported a retrospective study for FJI effects on LSS patients at risk of hemorrhage.
investigated which treatments were chosen as the third one by patients treated with both FJI and Epidural Steroid Injection (ESI) on different days within two months among those with lumbar central canal stenosis.
The possible mechanisms of FJI on LSS patients are assumed as follows: 1) A decompression effect of steroids injected into facet with hypertrophied facet joint.