Bronfort G, Evans R, Anderson AV, Svendsen KH, Bracha Y, Grimm RH., Spinal manipulation, medication, or home exercise with advice for acute and subacute neck pain., Ann Int Med, 156:1-10, 2012
272 patients randomised to manipulation, medication, or home exercise programme, which consisted predominantly of retraction, extension, plus some lateral exercises. Manipulation was no more effective than the home exercise programme at any time point, with one year follow-up.
Fryer G and Adams JH, Magnetic resonance imaging of subjects with acute unilateral neck pain and restricted motion: a prospective case series, Spine J, Mar;11(3):171-176, 2011
Guzy G, Franczuk B, Krkowski A., A clinical trial comparing the McKenzie method and a complex rehabilitation program in patients with cervical derangement syndrome., J Orth Trauma Surg Rel Res, 2:32-38, 2011
Sixty-one patients with cervical radiculopathy randomised to McKenzie method or a multi-dimensional rehabilitation programme. The group receiving
McKenzie method had significantly better results regarding centralization, upper extremity pain and pain-free days.
Kjellman G, Oberg B:, A randomised clinical trial comparing general exercise, McKenzie treatment and a control group in patients with neck pain., J Rehabil Med, 34:183-190, 2001
77 patients with acute to chronic neck pain randomised to 1 of 3 treatment arms, 93% follow-up at 12 months. All groups significant improvements in pain and disability, no significant difference between groups. Trend towards greater improvements in McKenzie group compared to controls at certain times. Significant improvements in DRAM scores in McKenzie group only. Recurrence rates similar by 12 months, but additional healthcare usage much less in McKenzie group.