NEW YORK (Reuters Health) Mar 09 09 – In patients with chronic axial low back or cervical pain, psychopathology predicts the outcome of medial branch blocks (MBBs) with corticosteroids, according to researchers.
“Our study,” lead investigator Dr. Ajay D. Wasan told Reuters Health, “suggests that an assessment of psychiatric symptoms is important in deciding to do an MBB. If a patient has psychiatric comorbidity, then a multimodal treatment plan — which may include an MBB — may be a better treatment option than just an MBB alone.”
In a February 16th on-line publication in BMC Musculoskeletal Disorders, Dr. Wasan of Brigham and Women’s Hospital and Harvard Medical School, Boston, and colleagues report on a prospective study of 86 patients who underwent MBB.
Just before and 1 month after the procedure, all completed the Brief Pain Inventory and the Hospital Anxiety and Depression Scale (HADS). The HADS scale was used to classify patients as exhibiting low, moderate or high levels of psychopathology.
Follow-up at 1 month showed that the 37 subjects in the low psychopathology group reported a mean improvement in pain of 23%. However, the 29 patients in the high psychopathology group reported a mean worsening of pain by 5.8%, a highly significant difference. Moreover, 40% of the low psychopathology group had at least a 30% improvement in pain compared to only 10% in the high psychopathology group.
“No baseline demographic, social, or medical variables were significant predictors of pain improvement,” say the investigators, “nor did they mitigate the effect of psychopathology on the outcome.”
“These findings,” they conclude, “illustrate the importance of assessing comorbid psychopathology as part of a spine care evaluation.”
BMC Musculoskelet Disord 2009.
For full medical article, see link above.
NOTE FROM ACTIVE HEALTHCARE: as with all forms of treatment, the influence of mental status on effectiveness strongly suggest a placebo, or psychosomatic effect. In additional of the side-effects associated with such medications, their usage should be restricted until after all forms of non-invasive treatment (such as massage, acupuncture and chiropractic) have been exhausted.