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Table 1 Basic characteristics of patients with ankylosing spondylitis

From: Treatment of kyphosis in ankylosing spondylitis by osteotomy through the gap of a pathological fracture: a retrospective study

Mean age (years)

36.8 (22–52)

Male/female

9/4

T9–T11 (n)

3

T11–T12 (n)

8

T12–L2 (n)

2

Low bone mineral density (n)

9

Average follow-up time (months)

25 (3–52)