Physical Activity, Disability and Quality of Life Before and After Lumbar Spine Surgery

Study Overview
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Brief Summary
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To date it is unknown how physical activity levels in adults is limited before and after lumbar spine surgery and if physical activity level is associated with disability and limitations of quality of life. The main objective is to compare physical activity preoperatively and 6 and 12 weeks postoperatively in patients undergoing lumbar spine surgery with norm data. In addition, the investigators will study the association of changes in physical activity, disability and quality of live.

Detailed Description
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Patients scheduled for planned lumbar spine surgery will be contacted to participate in this study. All outcomes will be assessed within 1 week preoperatively and at 6 and 12 weeks postoperatively. Changes in outcome scores will be detected using analysis of variance. Association of changes in physical activity and changes in secondary outcomes will be detected using stepwise linear regression models.

Official Title
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Accelerometry-based Physical Activity, Disability and Quality of Life Before and After Lumbar Spine Surgery: a Prospective Study

Conditions
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Quality of Life, Lumbar Spine Degeneration, Physical Activity, Disability Physical, Pain

Intervention / Treatment
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* Procedure: planned lumbar spine surgery


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: primary lumbar spine surgery single or multi level surgery on segments L2 to S1 (e.g. discectomy, decompression, laminectomy, foraminotomy) German speaking Exclusion Criteria: stabilisation or fusion surgery or surgery above L2 previous lumbar spine surgery indication: scoliosis, fracture, trauma, infection, tumor limited walking ability due to other conditions psychiatric conditions or dementia

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Lumbar spine surgery<br>Patients undergoing planned lumbar spine surgery | Procedure: planned lumbar spine surgery<br>* planned lumbar spine surgery including decompression, discectomy, foraminotomy, laminectomy<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Physical activity | measured using ActiGraph (accelerometer based activity monitor) as step counts, physical activity intensity during 7-day data capture period | up to 12 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Disability | measured using Oswestry Disability Index (questionnaire) (best score: 0 - no disability, worst score: 100) | up to 12 weeks | 
| Quality of life assessed by questionnaire | measured using Short Form (SF)-36 (questionnaire) (worst score: 0; best score: 100 - highest quality of life) | up to 12 weeks | 
| Pain assessed by questionnaire | measured using 10 cm visual analogue scale (VAS) lower back, legs (best score: 0 - no pain; worst score: 100) | up to 12 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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activity monitor, questionnaire, Oswestry Disability Index