Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 3 Radiographical findings for proximal union at various postoperative intervals

From: Effectiveness of synthetic hydroxyapatite versus Persian Gulf coral in an animal model of long bone defect reconstruction

Postoperative days	Median (min–max)			P ^a
Postoperative days	Control (n = 12)	Coral (n = 12)	Hydroxyapatite (n = 12)	P ^a
14	0 (0–0)	1 (0–0)	0 (0–0)	1.0
28	1 (0–1)	1 (0–1)	1 (0–1)	0.5
42	1 (0–1)	1 (1–2)^b	1 (1–2)^c	0.05
56	1 (0–2)	2 (1–2)^d	2 (1–2)^e	0.01

Significant P values are presented in bold
^aKruskal–Wallis nonparametric ANOVA
^bP = 0.02 (compared with control by Mann–Whitney U test)
^dP = 0.05 (compared with control by Mann–Whitney U test)
^cP = 0.02 (compared with control by Mann–Whitney U test)
^eP = 0.01 (compared with control by Mann–Whitney U test)

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