Outcomes From Magnetic Resonance Imaging–Confirmed Symptomatic Cervical Disk Herniation Patients Treated With High-Velocity, Low-Amplitude Spinal Manipulative Therapy: A Prospective Cohort Study With 3-Month Follow-Up

Received 31 May 2013; received in revised form 24 June 2013; accepted 27 June 2013. published online 14 August 2013.

Objective

The purpose of this study was to investigate outcomes of patients with cervical radiculopathy from cervical disk herniation (CDH) who are treated with spinal manipulative therapy.

Methods

Adult Swiss patients with neck pain and dermatomal arm pain; sensory, motor, or reflex changes corresponding to the involved nerve root; and at least 1 positive orthopaedic test for cervical radiculopathy were included. Magnetic resonance imaging–confirmed CDH linked with symptoms was required.

Baseline data included 2 pain numeric rating scales (NRSs), for neck and arm, and the Neck Disability Index (NDI). At 2 weeks, 1 month, and 3 months after initial consultation, patients were contacted by telephone, and the NDI, NRSs, and patient's global impression of change data were collected. High-velocity, low-amplitude spinal manipulations were administered by experienced doctors of chiropractic. The proportion of patients responding “better” or “much better” on the patient's global impression of change scale was calculated.

Results

Fifty patients were included. At 2 weeks, 55.3% were “improved,” 68.9% at 1 month and 85.7% at 3 months. Statistically significant decreases in neck pain, arm pain, and NDI scores were noted at 1 and 3 months compared with baseline scores (P < .0001). Of the subacute/chronic patients, 76.2% were improved at 3 months.

Conclusions

Most patients in this study, including subacute/chronic patients, with symptomatic magnetic resonance imaging–confirmed CDH treated with spinal manipulative therapy, reported significant improvement with no adverse events.