• D Michalski and A Hinz.
• Therapiezentrum für Wirbelsäulenerkrankungen Leipzig. dm@tz-suhl-leipzig.de
• Schmerz. 2006 Jun 1;20(3):198-209.

BackgroundAmong the possible reasons for low back pain, psychological factors are getting more attention. Early assessment of the stage of chronicity is important for successful therapy. The aim of the present study was to analyse the applicability of the Mainz Pain Staging System (MPSS) for chronic back pain outpatients.MethodsEach of 679 back pain outpatients were assigned to one of the three MPSS stages of chronic back pain severity. Pain intensity and duration, anxiety and depression, pain sensation, impression of control and muscular capacity (isometric power of lumbal extensor), number of clinical consultations, hospitalisation, and days of work inability were also recorded.ResultsMales and females showed levels of chronic pain increasing with age. Patients with high MPSS levels showed significantly higher mean scores for anxiety, depression, number of consultations, hospitalisation, and days of inability to work. Furthermore, the same patients showed lower impressions of control and muscular capacity.ConclusionsThe present study confirms the significance and usefulness of the MPSS applied to outpatients with back pain. To assess completely the stage of chronicity, psychological and physical/functional parameters should also be obtained.

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