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Abstract
The aim of the study was to identify factors that predict impairment in daily life for patients of working age with knee complaints 6 months after receiving physiotherapy. A prospective, multicentre observational study was conducted in private physiotherapy practices. Patients (n = 237) aged 18–65 years with a physiotherapy referral because of knee complaints were studied. Treatment was documented on a standardized form by the physiotherapists and was not influenced by the investigators. The 16-item version of the Musculoskeletal Function Assessment Questionnaire was used as primary outcome measure. Baseline scores for impairment in daily life, symptom characteristics, socio-demographic and psychosocial factors, physical activity, nicotine consumption and comorbidities were investigated as possible predictors of recovery. Predictors identified by multiple linear regression were: self-prognosis on work ability, mental resources, obesity, diagnostic subgroup anterior knee pain and the comorbidities rheumatoid arthritis and diabetes. An active primary therapy approach enhanced recovery. Variables explained 38% of variance (adjusted R2). The knowledge of the identified factors supports the setting of therapy goals together with the patient. Therefore, only a short questionnaire is necessary. Moreover, the results underpin the importance of an active therapy plan.
Acknowledgements
This work was supported by the German Association of Physiotherapy (ZVK) e.V., ZVK Nordverbund; payment for printing of questionnaires.
Declaration of interest: The Authors declare that there is no conflict of interest. Dr SW Weiler is currently employed at Audi Medical Services and was working for the University of Luebeck when the study was performed. All data were collected on behalf of Institute of Occupational Medicine, University of Luebeck, Germany. Audi had in no way any influence on this study.