Article
Predictors of clinical outcome in lumbar surgery: Evaluation of physical, mental and social factors
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Published: | June 9, 2017 |
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Objective: We aimed to identify potential risk factor for unfavourable outcome following lumbar spine surgery for degenerative disc disease.
Methods: Study design: Prospective cohort study Patients were asked preoperatively to complete a series of questionnaires, including the Oswestry Disability Index (ODI), the anxiety sensitivity index (ASI-3), the SF-36, the visual analogue scale for pain (VAS), the Berliner Social Support Scale, the PTSS-10 for PTSD symptoms and indicate demographic variables concerning education or partnership for example. The evaluation was based on the ODI filled out 1 year postoperatively. The univariate and multivariate association between risk factors and outcome parameter (ODI) was assessed with correlation coefficients and multivariate logistic regression.
Results: 99 patients met all inclusion criteria. 50 patients were male (50.5%); mean age was 60 years. Most patients were married or in a steady relationship (74.8%). Preoperatively age (r=0.230; p=0.025), pain (VAS) (r=0.380; p<0,001), trait anxiety (r=0.244; p=0.019), PTSS (r=0.222; p=0.034), ODI (r=0.404; p<0,001), depression score ADS-K (r=0.258; p=0.013) and low education (r=-0.281; p=0.009) and lower SF-36 Physical Composite Score (r=-0,487; p<0,001) correlated with worse ODI scores at 1 year.
Conclusion: Clinical outcome one year after surgery is influenced by age and physical status before surgery. Mental comorbidities and social status are also influential on clinical outcome. A preoperative screening tool seems feasible.