The primary objective of this study is to compare the effectiveness of standard medical therapy alone to kyphoplasty using the KyphX system for the treatment of acute vertebral body compression fractures.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
300
University of Alabama
Birmingham, Alabama, United States
The primary objective of this study is to compare the effectiveness of standard medical therapy alone to kyphoplasty using the KyphX system for the treatment of acute vertebral compression fractures (VCFs).
Safety will be compared between the study groups throughout the study with focus on clinically meaningful events and subsequent VCFs including the "treated" vertebrae.
The primary study endpoint is the change in quality of life as measured by the Physical Component Summary (PCS) scale of the 36-Item Short Form (SF-36) as measured at the one-month follow-up visit.
The secondary study endpoints are: EuroQol self-report (EQ-5D) questionnaire and SF-36 scores at 1, 3, 6, 12 and 24 months
procedural safety (peri-operative clinical events)
function as measured by objective functionality tests-reaching, "get up and go" and by the subjective Roland Morris disability questionnaire at 1, 3, 6, 12 and 24 months
pain using a 10-point visual analogue scale (VAS) at 5-10 days (post enrollment for the control group and post kyphoplasty for the kyphoplasty group)
changes in spinal deformity as measured radiographically at baseline, 3, 12 and 24 months.
Maintenance of vertebral body height will be assessed from lateral spine x-rays obtained in Kyphoplasty treated subjects only at baseline and at 3, 12, and 24 month visits.
patient satisfaction at 1, 3, 6, 12, 24 months
outcome (nursing home, back to status prior to fracture) at 1, 3, 6, 12, 24 months
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economic aspects (including hospital days, disabilities, etc.) at 1, 3, 6, 12, 24 months
the cost-effectiveness of kyphoplasty expressed in incremental cost/quality adjusted life year gained at different time points (1 year and 2 years)
rate of incident fractures at 3, 12 and 24 months (frequency, timing and location)
Each endpoint will be compared between the 2 groups and for its evolution over time.