Is Hypercalcemia a Frequent Complication following Local Use of Calcium Sulfate with Antibiotics for the Treatment of Extremity Posttraumatic Osteomyelitis? A Preliminary Study

Table 2

Prevalence of hypocalcaemia and serum calcium levels between different CS volume groups at each time point.

Time points	Prevalence of hypocalcaemia			Serum calcium levels
	≤20 cc group	>20 cc group	P value	≤ 20 cc group	>20 cc group	P value
	% (E/T)	% (E/T)		(M ± SD)	(M ± SD)
Pre-surgery	19.4 (7/36)	10.5 (2/19)	0.641	2.30 ± 0.12	2.28 ± 0.07	0.481
1st POD	61.1 (22/36)	57.9 (11/19)	0.817	2.19 ± 0.10	2.20 ± 0.11	0.679
3rd POD	54.3 (19/35)	52.9 (9/17)	0.927	2.21 ± 0.13	2.17 ± 0.11	0.311
7th POD	29.4 (5/17)	20 (3/15)	0.691	2.24 ± 0.08	2.26 ± 0.10	0.512

CS: calcium sulfate; E/T: events/total; M: mean; SD: standard deviation; POD: postoperative day.