The aftercare intervention was shown to be feasible and well accepted. Its efficacy should be tested with a larger-scale randomized controlled trial.

AbstractObjectivesLittle is known about the affected cognitive problems in chronic low back pain patients. For this patient cohort research mostly focused on memory of pain, rather than cognitive difficulties related to pain. Chronic pain may be associated with specific (yet undefined) cognitive deficits that affect everyday behaviour. We set out to compare the cognitive function of patients with chronic low back pain (cLBP) in the course of multidisciplinary pain treatments before and after therapy.MethodsThirty-three patients with cLBP and 25 healthy controls between 20 and 70 years were recruited into the study. The inclusion criteria for patients were: (1) a history of at least 12 weeks of chronic myofascial low back pain without radicular pain sensation before enrolment; (2) grade II and higher chronicity according to von Korff; (3) no opioid medication. The patients recruited had a mean pain duration of 7.13 ± 7.16 years and reported a mean pain intensity of 6.62 ± 2.04 (visual analogue score, VAS). Their mean back function according to the Funktionsfragebogen Hannover (FFbH, a questionnaire comparable with the Health Assessment Questionnaire) was 52.39 ± 20.23%.At three time points (before therapy, 3 weeks and 6 months after therapy) the study subjects were assessed prospectively with a battery of visual memory tests from the Cambridge Neuropsychological Test Automated Battery (CANTAB). These included choice reaction time (CRT), pattern recognition memory (PRM) and spatial span (SSP). In parallel, the Trail-Making Test (TMT-A, TMT-B) and the Wechsler Adult Intelligence Scale (WAIS-III) were used to evaluate intelligence and cognitive flexibility.ResultsAt the beginning of MDPT (T1), it took patients with cLBP significantly longer than HC to complete TMT-A (38.29 ± 19.99 s vs 30.25 ± 14.19 s, p = 0.047) and TMT-B (72.10 ± 26.98 s vs 55.99 ± 22.14 s, p = 0.034). There were no significant differences between patients and HC in CRT, PRM and SSP. Three weeks (T2) and 6 months (T3) after MDPT, TMT-A reaction time of patients significantly improved by 6.5 s and 8.1 ms (38.3 ±19.9 s vs 31.8 ±12.3 s, p = 0.02 and 31.8 ± 12.3 s vs 30.2 ± 8.9 s, p = 0.021, respectively). The patients’ working memory was also better 6 months after MDPT (48.8 ± 11.1% at T1, 51.2 ±11.9% at T2, 57.1 ±10.9% at T3, p = 0.008). Significant correlations among pain, depression/anxiety, medication and neuropsychological tests were found.ConclusionsThese findings show that patients with cLBP have slowed speeds of information processing and working memory, but no alteration in attention and recognition memory. There are clearly interactions of cognitive function with pain, depression, anxiety, and medication. MDPT may improve the impaired cognitive function of patients with cLBP.ImplicationHealth professionals should contemplate the results from this study when planning therapy strategies especially when prescribing pain medications such opioids to patients with chronic low back pain.

Using the items listed above, the study was able to predict a patient's risk of developing chronic LBP with a probability of 78%. These items were assembled in a brief questionnaire and were paired with a corresponding evaluative tool. This enables practitioners to assess an individual patient's risk for chronicity by means of a simple calculator in just a few minutes. A validation study for the questionnaire is currently being prepared. MINI ABSTRACT: The objective of this study was the development of a brief questionnaire to assess the risk for chronicity for LBP.

Thus, multidisciplinary treatment ameliorates pain, functional restoration, and quality of life with medium to high effect sizes even for patients with a long history of chronic back pain. Effect sizes are higher than for monodisciplinary treatments and treatment effects remained stable at 6-month follow-up in a longitudinal uncontrolled study design. Thus, we believe that multidisciplinary treatment is vital for the treatment of patients with chronic low back pain. The impact of sociodemographic and pain-related parameters needs to be taken into account when including patients in an appropriate treatment program. We emphasize the presentation of effect sizes as a vital treatment evaluation to enable cross-sectional comparison of therapy outcomes.

According to the results of this study, patients with chronic low back pain also derive significant benefit from a multidisciplinary treatment strategy in higher stages of chronicity. Therefore, therapy should not be limited to the patients in lower stages of chronicity.

Chronic back pain leads to high societal costs and severely decreased quality of life for the sufferers. Pain treatment aims at sustainable behaviour changes in order to positively affect pain development in the medium term. A multicenter, randomised control trial was conducted. Participants (N=334) were recruited at 6 German hospitals and randomly assigned to an Internet-based aftercare intervention or treatment-as-usual. Primary endpoint was 12 months after treatment termination, primary outcome was pain intensity, and secondary outcomes were physical functioning, quality of life, and ability to work.The intervention was well accepted by the participants. Its efficacy could not be demonstrated. Neither pain intensity nor the secondary outcomes differed between the 2 study groups.Possible reasons for disappointing efficacy and preconditions for Internet-based programs will be discussed.

Evaluation of the main results of this study suggests that patients with chronic NP also derive significant benefit from a multidisciplinary treatment strategy, demonstrated in the literature so far mainly for patients with chronic LBP.

This prospective longitudinal clinical study evaluates the prognostic value of age in the therapy outcome of patients with chronic low back pain treated with a multidisciplinary therapy. Four hundred five patients with chronic low back pain for 3 months or longer and a corresponding sick leave for longer than 6 weeks underwent a 3-week standardized multidisciplinary therapy. Patients were assigned into three groups of age with comparable baseline values at T0. At the 6-month follow-up (T1) five different therapy outcomes were analysed and compared in the three groups: back-to-work status, generic health status (SF36), pain intensity, functional capacity, and satisfaction with the therapy. All three treatment groups improved significantly in all outcome criteria between T0 and T1 except of functional capacity, which did not improve in the older patients. In the total group, the back-to-work rate was 61.7%. At the final follow-up, there were significantly better results in terms of functional capacity and pain level in younger patients, whereas back-to-work rate and satisfaction with therapy did not show a significant difference between the groups analysed. According to the results of this study, older patients with chronic low back pain also derive significant benefit from a multidisciplinary treatment strategy, although in some outcome criteria results were inferior to those obtained in younger patients.