Original Research Article
Year: 2020 | Month: December | Volume: 10 | Issue: 12 | Pages: 263-269
Effect of Static Versus Dynamic Ultrasound on Pain in Subjects with Trigger Point in Quadratus Lumborum Having Non-Specific Chronic Low Back Pain
Deep Shah1, Megha Sheth2, Apurva Shah3
1Intern, SBB College of Physiotherapy, Ahmedabad, India.
2Lecturer, SBB College of Physiotherapy, Ahmedabad, India.
3Intern, SBB College of Physiotherapy, Ahmedabad, India.
Corresponding Author: Deep Shah
ABSTRACT
Background: Static Ultrasound has been a very effective means of treating trigger points in low back pain. Recently dynamic ultrasound has been introduced. The purpose of this study was to compare static and dynamic ultrasound for treating trigger points in Quadratus Lumborum in patients having non-specific low back pain.
Method: An experimental study was done where 21 patients were distributed among 3 groups. Group A was given Dynamic ultrasound, Group B was given static ultrasound 3Mhz and Group C was given static ultrasound 1Mhz. All groups were given hot packs and exercises. Treatment was assessed in terms of numeric pain rating scale (NPRS), Active knee extension (AKE) test, Modified schober test for lumbar flexion and extension (MSTF and MSTE).
Result: Using the Wilcoxon test difference in means for NPRS Group A(W=-2.371,p=0.018), Group B(W=-2.371,p=0.018), Group C(W=-2.371,p=0.018), for AKE Group A(W=-2.388,p=0.017), Group B(W=-2.392,p=0.017), Group C(W=-2.264,p=0.024), for MSTF Group A(W=-2.388,p=0.017), Group B(W=-2.392,p=0.017) Group C(W=-2.530,p=0.011), for MSTE Group A(W=-2.041,p=0.041), Group B(W=-2.414,p=0.016) Group C(W=-2.121,p=0.034). Applying Kruskal-Wallis test, difference was seen between groups in pain (Kw=8.624,p=0.013), AKE(Kw=9.374,p=0.009) MSTF(Kw=8.963,p=0.011) MSTE(Kw=2.260,p=0.323). Bonferroni post hoc test shows significant difference between the effects of Dynamic Ultrasound and static US for pain, AKE and flexion range of motion.
Conclusion: Dynamic and static 1MHz and 3MHz Ultrasound, all are effective in reducing pain and increasing range of motion of lumbar spine and length of hamstrings. Dynamic ultrasound was found to be more effective than static ultrasound for the same.
Key words: Ultrasound, static, dynamic, trigger point, low back pain.