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Table 1 Long-term VAS and Oswestry Disability Scores

From: Fifteen to twenty-five year functional outcomes of twenty-two patients treated with posterior Cotrel-Dubousset type instrumentation: a limited but detailed review of outcomes

Outcome item Mean value P value distal fusion level R squared with respect to time P value with respect to time
VAS Back Pain 2.5 0.917 0.177 0.051
Oswestry Disability 15.36 0.715 0.092 0.168