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Physical therapy treatment dose for nontraumatic neck pain: a comparison between 2 patient groups
Dean A Clair1, Stephen J Edmondston, Garry T Allison
1Department of Physiotherapy, Osborne Park Hospital, Stirling, Western Australia.
Study Design:
Prospective cohort study.
Objectives:
To classify patients with nonacute, nontraumatic neck pain according to the dominant impairment of spinal function, and to determine whether there were differences in the amount of treatment sessions required (treatment dose) to achieve a significant change in the patients disorder.
Background:
Classification of patients with mechanical neck pain may be an important process in optimizing treatment prescription and evaluating treatment response. However, patient classification has not been used to consider possible differences in the amount of treatment sessions (treatment dose) required to achieve a significant change in the neck pain disorder.
Methods And Measures:
Ninety-two patients with nonacute, nontraumatic neck pain were classified into 2 groups, according to the dominant impairment of spinal function. Of the 77 patients who completed treatment, 63 (82%) were classified as having a "movement disorder," while the remainder was classified into a "loading disorder" group. Physical therapists who were blinded to the patient classification provided multimodal physical therapy treatment as considered appropriate and the patients were discharged when the optimal treatment response had been achieved.
Results:
There was no difference in pain intensity or global disability level between the groups at baseline. Both groups achieved a significant improvement in neck pain and disability following treatment, and there was no significant difference between groups in the magnitude of the treatment response. The number of treatment sessions received by the loading group (mean +/- SD, 7.3 +/- 4.5) was significantly lower than the number received by the movement group (mean +/- SD, 11.5 +/- 5.9; 95% CI: -7.6 to -0.8; P<.01). Patients in the loading group were 2.4 times as likely to be discharged at any particular treatment session (95% CI: 1.1 to 4.1, P<.005) compared to those in the movement group.
Conclusion:
For patients with nontraumatic neck pain, classification according to impairment of spinal function may be a useful indicator of the number of physical therapy treatment sessions required to achieve a significant treatment response.