Extension traction treatment for patients with discogenic lumbosacral radiculopathy: a randomized controlled trial

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Abstract

Objective:

To investigate the effects of lumbar extension traction in patients with unilateral lumbosacral radiculopathy due to L5-S1 disc herniation.

Design:

A randomized controlled study with six-month follow-up.

Setting:

University research laboratory.

Subjects:

Sixty-four patients with confirmed unilateral lumbosacral radiculopathy due to L5-S1 disc herniation and a lumbar lordotic angle less than 39°, randomly assigned to traction or control group.

Interventions:

The control group (n = 32) received hot packs and interferential therapy, whereas the traction group (n = 32) received lumbar extension traction in addition to hot packs and interferential therapy.

Main outcome measures:

Absolute rotatory angle, back and leg pain rating scale, Oswestry Disability Index, Modified Schober test, H-reflex (latency and amplitude) and intervertebral movements were measured for all patients three times (before treatment, after 10 weeks of treatment and at six-month follow-up).

Results:

There was a significant difference between the traction group and the control group adjusted to baseline values at 10 weeks post treatment with respect to: absolute rotatory angle (P < 0.001), Oswestry Disability Index (P = 0.002), back and leg pain (P = 0.009, P = 0.005), Modified Schober test (P = 0.002), latency and amplitude of H-reflex (P = 0.01, P < 0.001), intervertebral movements (P < 0.05). At six-month follow-up there were statistically significant differences between the study and control groups for all the previous variables (P < 0.05).

Conclusion:

The traction group receiving lumbar extension traction in addition to hot packs and interferential therapy had better effects than the control group with regard to pain, disability, H-reflex parameters and segmental intervertebral movements.

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