Percutaneous kyphoplasty for the treatment of very severe osteoporotic vertebral compression fractures with spinal canal compromise

Table 2 Mean improvement of radiographic data

	Pre-operative	Post-operative	Last follow-up
Vertebral body height ratios (%)^a
Anterior	26.5 ± 4.2	53.6 ± 4.0^b	51.2 ± 3.9^b
Middle	30.9 ± 4.5	60.9 ± 4.3^b	57.4 ± 4.2^b
LKA (°)	25.1 ± 5.0	15.3 ± 5.5^b	15.7 ± 5.8^b

LKA local kyphotic angle
^aVertebral body height ratios (%) = (fractured vertebral body height/normal vertebral body height) × 100%
^bP < 0.01 compared to pre-operative value

ISSN: 1749-799X