Table 1.

Patients’ characteristics

Characteristic	Value
No. of patients	50
Mean age at the time of surgery (yr)	64.7±6.4 (49–82)
Gender
Male	28
Female	22
Duration of hemodialysis at surgery (yr)	16.4±9.9 (3–36)
Duration of follow-up (mo)	48.9 (24–109)
No. of fused levels
1 Level	35
2 Levels	14
3 Levels	1
Operation time (min)	217.6±53.5 (143–335)
Estimated blood loss (mL)	461.7±339 (30–1,770)

Values are presented as number, mean±standard deviation (range), or median (range).