Article

The McKenzie method is widely used as an active intervention in the
treatment of patients with nonspecific low back pain. Although the McKenzie method has been compared with several other interventions, it is not yet known
whether this method is superior to placebo in patients with chronic low back pain. The purpose of this trial is to assess the efficacy of the
McKenzie method in patients with chronic nonspecific low back pain. DESIGN: An
assessor-blinded, 2-arm, randomized placebo-controlled trial will be conducted.
This study will be conducted in physical therapy clinics in Sao Paulo,
Brazil. PARTICIPANTS: The participants will be 148 patients seeking care for
chronic nonspecific low back pain. INTERVENTION: Participants will be randomly
allocated to 1 of 2 treatment groups: (1) McKenzie method or (2) placebo therapy
(detuned ultrasound and shortwave therapy). Each group will receive 10 sessions
of 30 minutes each (2 sessions per week over 5 weeks). MEASUREMENTS: The clinical
outcomes will be obtained at the completion of treatment (5 weeks) and at 3, 6,
and 12 months after randomization. The primary outcomes will be pain intensity
(measured with the Pain Numerical Rating Scale) and disability (measured with the
Roland-Morris Disability Questionnaire) at the completion of treatment. The
secondary outcomes will be pain intensity; disability and function; kinesiophobia
and global perceived effect at 3, 6, and 12 months after randomization; and
kinesiophobia and global perceived effect at completion of treatment. The data
will be collected by a blinded assessor. LIMITATIONS: Therapists will not be
blinded. CONCLUSIONS: This will be the first trial to compare the McKenzie method
with placebo therapy in patients with chronic nonspecific low back pain. The
results of this study will contribute to better management of this population.
CI - (c) 2015 American Physical Therapy Association.

Langue : ANGLAIS