Analysis of Lumbar Sagittal Curvature in Spinal Decompression and Fusion for Lumbar Spinal Stenosis Patients under Roussouly Classification

Table 4

The functional changes before and at the final follow-up of thoracic and lumbar of patients in four types.

	Roussouly type I	Roussouly type II	Roussouly type III	Roussouly type IV
VAS score (leg)
Preoperative
Final follow-up
value	<0.001	<0.001	<0.001	<0.001
VAS score (waist)
Preoperative
Final follow-up
value	<0.001	<0.001	<0.001	<0.001
ODI score
Preoperative
Final follow-up
value	<0.001	<0.001	<0.001	<0.001

VAS: visual analog scale; ODI: Oswestry Disability Index.