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Phys Ther. 2009 Jul;89(7):632-42. doi: 10.2522/ptj.20080283. Epub 2009 May 21.

Manual therapy, exercise, and traction for patients with cervical radiculopathy: a randomized clinical trial.

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  • 1Spine and Sport, Savannah, Georgia, USA.

Erratum in

  • Phys Ther. 2009 Nov;89(11):1254-5.
  • Phys Ther. 2010 May;90(5):825.



To date, optimal strategies for the management of patients with cervical radiculopathy remain elusive. Preliminary evidence suggests that a multimodal treatment program consisting of manual therapy, exercise, and cervical traction may result in positive outcomes for patients with cervical radiculopathy. However, limited evidence exists to support the use of mechanical cervical traction in patients with cervical radiculopathy.


The purpose of this study was to examine the effects of manual therapy and exercise, with or without the addition of cervical traction, on pain, function, and disability in patients with cervical radiculopathy.


This study was a multicenter randomized clinical trial.


The study was conducted in orthopedic physical therapy clinics.


Patients diagnosed with cervical radiculopathy (N=81) were randomly assigned to 1 of 2 groups: a group that received manual therapy, exercise, and intermittent cervical traction (MTEXTraction group) and a group that received manual therapy, exercise, and sham intermittent cervical traction (MTEX group).


Patients were treated, on average, 2 times per week for an average of 4.2 weeks.


Outcome measurements were collected at baseline and at 2 weeks and 4 weeks using the Numeric Pain Rating Scale (NPRS), the Patient-Specific Functional Scale (PSFS), and the Neck Disability Index (NDI).


There were no significant differences between the groups for any of the primary or secondary outcome measures at 2 weeks or 4 weeks. The effect size between groups for each of the primary outcomes was small (NDI=1.5, 95% confidence interval [CI]=-6.8 to 3.8; PSFS=0.29, 95% CI=-1.8 to 1.2; and NPRS=0.52, 95% CI=-1.8 to 1.2).


The use of a nonvalidated clinical prediction rule to diagnose cervical radiculopathy and the lack of a control group without treatment were limitations of this study.


The results suggest that the addition of mechanical cervical traction to a multimodal treatment program of manual therapy and exercise yields no significant additional benefit to pain, function, or disability in patients with cervical radiculopathy.

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