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Immediate effect of extracorporeal shockwave therapy in patients with chronic non-specific low back pain: A
Cláudio Gregório Nuernberg Back1, Rafaela Peron2, Camilla Vitória Rios Lopes3
1Physiotherapy Department, Federal University of São Carlos, São Carlos/SP 13565-905, Brazil.
Objective:
To compare the immediate effects of shockwave therapy using two different tips in patients with chronic non-specific low back pain.
Design:
Randomised placebo-controlled study with three intervention groups.
Setting:
The patients recruited for this study were sent for physiotherapy treatment at primary care between May and July 2022.
Participants:
Eighty-one patients with chronic non-specific low back pain aged 18-80 years with pain for ≥3 months and pain intensity ≥3 were randomly recruited for the study.
Intervention:
The patients received a single intervention of radial shockwave therapy with 2000 discharges at 100 mJ energy and 5 Hz frequency using concave or convex tips or placebo treatment.
Main Measures:
The primary outcome was pain intensity immediately post-intervention. The secondary outcomes were pressure pain threshold, temporal summation of pain, and functional performance. Data were collected at baseline and post-intervention.
Results:
The post-intervention pain intensity in the concave tip group is an average of two points lower (95% CI = -3.6, -0.4; p < 0.01) than that in the placebo group. The post-intervention pressure pain threshold for the concave tip group was an average of 62.8 kPa higher (95% CI = 0.4, 125.1; p < 0.05) than for the convex tip group and 76.4 kPa higher (95% CI = 14, 138.7; p < 0.01) than in the placebo group.
Conclusion:
The concave tip shockwave therapy is effective in reducing pain and local hyperalgesia in patients with chronic non-specific low back pain.
