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Table 2 Analysis of perioperative Hb and Hct values of the index surgery. Δ indicates preoperative minus postoperative value. p values were calculated using Student’s t test. *Significant differences. Hb, haemoglobin; Hct, haematocrit; SD, standard deviation

From: Intraoperative blood loss as indicated by haemoglobin trend is a predictor for the development of postoperative spinal implant infection—a matched-pair analysis

 

Septic group (n = 50)

Mean ± SD

Aseptic group (n = 50)

Mean ± SD

p value

Haemoglobin

 Preoperative Hb

13.68 ± 1.82

13.15 ± 1.53

0.079

 Postoperative Hb

10.23 ± 1.65

10.33 ± 1.68

0.771

 HBΔ

3.45 ± 1.25

2.82 ± 1.48

0.034*

Haematocrit

 Preoperative Hct

0.40 ± 0.05

0.39 ± 0.04

0.392

 Postoperative Hct

0.30 ± 0.04

0.31 ± 0.05

0.383

 HCTΔ

0.10 ± 0.04

0.08 ± 0.04

0.055

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X