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Table 2 The incidence of adjacent segment degeneration according to pre-existing degeneration of L5-S1

From: Does pre-existing L5-S1 degeneration affect outcomes after isolated L4-5 fusion for spondylolisthesis?

  Pre-existing deg Non-existing deg p value
Radiologic ASD Y 4 (18.2%) 3 (8.3%) 0.41
Radiologic ASD N 18 (81.8%) 33 (91.7%)
Clinical ASD Y 1 (4.5%) 2 (5.7%) 1.00
Clinical ASD N 21 (95.5%) 34 (94.4%)
  1. ASD: adjacent segment disease, Y: yes, N: no.
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X