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Journal Article
Pragmatic Clinical Trial
Randomized Controlled Trial
Intra-articular Triamcinolone Versus Hyaluronate Injections for Low Back Pain With Symptoms Suggestive of Lumbar Zygapophyseal Joint Arthropathy: A Pragmatic, Double-Blind Randomized Controlled Trial.
OBJECTIVE: The aim of the study was to compare hyaluronate with triamcinolone injections in treating chronic low back pain suggestive of lumbar zygopophyseal joint arthropathy.
DESIGN: This was a prospective, double-blind, randomized controlled trial. Thirty subjects were randomly assigned to receive bilateral L3-S1 lumbar zygopophyseal joint injections with triamcinolone (KA) or Synvisc-One (HA). Pain (visual analog scale) and Pain Disability Questionnaire scores at 1, 3, and 6 mos were evaluated.
RESULTS: No significant intergroup differences (P > 0.05) in outcomes were noted in the 30 recruited subjects. For KA/HA (baseline; 1 mo; 3 mos; 6 mos), visual analog scale scores were the following: 70 (15)/74 (10); 58 (29)/45 (25); 58 (29)/56 (25); and 59 (28)/63 (24), respectively. Pain Disability Questionnaire scores were the following: 100 (23)/102 (28); 77 (30)/74 (34); 87 (26)/74 (36); and 96 (25)/79 (25). Overall percent improvement at 6 mos for KA was 51 (35) and for HA was 42 (33) (P = 0.51). Synvisc-One group visual analog scale scores improved significantly (70 [20]-45 [25] at 1 mo, P = 0.008). Pain Disability Questionnaire scores improved at 1 mo (100 [23]-77 [30], P = 0.009) in the KA group and at all time points in the HA group (102 [28]-74 [34] at 1 mo, P = 0.002; 74 [36] at 3 mos, P = 0.037; 79 at 6 mos [median = 52-99.5], P < 0.001). Medians and quartiles were used in statistical analysis when data did not pass normality.
CONCLUSIONS: Patients with chronic low back pain suggestive of lumbar lumbar zygopophyseal joint arthropathy responded similarly to triamcinolone or hyaluronate injections. Synvisc-One group showed significant short- and long-term functional improvement and short-term pain improvement; KA group showed only significant short-term functional benefit and no significant short- or long-term pain improvement.
DESIGN: This was a prospective, double-blind, randomized controlled trial. Thirty subjects were randomly assigned to receive bilateral L3-S1 lumbar zygopophyseal joint injections with triamcinolone (KA) or Synvisc-One (HA). Pain (visual analog scale) and Pain Disability Questionnaire scores at 1, 3, and 6 mos were evaluated.
RESULTS: No significant intergroup differences (P > 0.05) in outcomes were noted in the 30 recruited subjects. For KA/HA (baseline; 1 mo; 3 mos; 6 mos), visual analog scale scores were the following: 70 (15)/74 (10); 58 (29)/45 (25); 58 (29)/56 (25); and 59 (28)/63 (24), respectively. Pain Disability Questionnaire scores were the following: 100 (23)/102 (28); 77 (30)/74 (34); 87 (26)/74 (36); and 96 (25)/79 (25). Overall percent improvement at 6 mos for KA was 51 (35) and for HA was 42 (33) (P = 0.51). Synvisc-One group visual analog scale scores improved significantly (70 [20]-45 [25] at 1 mo, P = 0.008). Pain Disability Questionnaire scores improved at 1 mo (100 [23]-77 [30], P = 0.009) in the KA group and at all time points in the HA group (102 [28]-74 [34] at 1 mo, P = 0.002; 74 [36] at 3 mos, P = 0.037; 79 at 6 mos [median = 52-99.5], P < 0.001). Medians and quartiles were used in statistical analysis when data did not pass normality.
CONCLUSIONS: Patients with chronic low back pain suggestive of lumbar lumbar zygopophyseal joint arthropathy responded similarly to triamcinolone or hyaluronate injections. Synvisc-One group showed significant short- and long-term functional improvement and short-term pain improvement; KA group showed only significant short-term functional benefit and no significant short- or long-term pain improvement.
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