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Table 1 Posterolateral lumbar fusion rates assessed by micro-CT at two levels

From: Comparison of synthetic bone graft ABM/P-15 and allograft on uninstrumented posterior lumbar spine fusion in sheep

Fusion rates

Fusion

Non fusion

Percentage fusion

Chi-square

Allograft (N = 22)

15

7

68%

P < 0.01

ABM/P-15 (N = 22)

8

14

37%

P < 0.01

  1. Eleven sheep with bilateral transplantation on each level (n = 22) in both groups