Spine J. 2014 Oct 22. pii: S1529-9430(14)01609-X. doi: 10.1016/j.spinee.2014.10.016. [Epub ahead of print]
Clinician proficiency in delivering manual treatment for neck pain within specified force ranges.
Gudavalli MR1, Vining RD2, Salsbury SA2, Corber LG2, Long CR2, Patwardhan AG3, Goertz CM2.
Abstract
BACKGROUND CONTEXT:
Neck pain is a common musculoskeletal complaint responsive to manual therapies. Doctors of chiropractic commonly use manual cervical distraction, a mobilization procedure, to treat neck pain patients. However, it is unknown if clinicians can consistently apply standardized cervical traction forces, a critical step toward identifying an optimal therapeutic dose.
PURPOSE:
To assess clinicians’ proficiency in delivering manually applied traction forces within specified ranges to neck pain patients.
STUDY DESIGN:
An observational study nested within a randomized clinical trial.
SAMPLE:
Two research clinicians provided study interventions to 48 participants with neck pain.
OUTCOME MEASURES:
Clinician proficiency in delivering cervical traction forces within three specified ranges (low force, less than 20 N; medium force, 21-50 N; and high force 51-100 N).
METHODS:
Participants were randomly allocated to three force-based treatment groups. Participants received five manual cervical distraction treatments over 2 weeks while lying prone on a treatment table instrumented with force sensors. Two clinicians delivered manual traction forces according to treatment groups. Clinicians treated participants first without real-time visual feedback displaying traction force and then with visual feedback. Peak traction force data were extracted and descriptively analyzed.
RESULTS:
Clinicians delivered manual cervical distraction treatments within the prescribed traction force ranges 75% of the time without visual feedback and 97% of the time with visual feedback.
CONCLUSIONS:
This study demonstrates that doctors of chiropractic can successfully deliver prescribed traction forces while treating neck pain patients, enabling the capability to conduct force-based dose response clinical studies.