Bohler’s angle’s role in assessing the injury severity and functional outcome of internal fixation for displaced intra-articular calcaneal fractures: a retrospective study

Table 2 The correlation between Böhler’s angle, the difference value of Böhler’s angle between bilateral calcaneus, or the change in Böhler’s angle by ratio and the injury severity or functional outcomes

	Correlation		rs-value	P-Value
Preoperative	Böhler’s angle	Sanders classification	−0.178	0.003
	The difference value of Böhler’s angle between bilateral calcaneus	Sanders classification	−0.174	0.004
	The change in Böhler’s angle by ratio	Sanders classification	−0.172	0.005
Preoperative	Böhler’s angle	Functional outcome	0.086	0.156
	The difference value of Böhler’s angle between bilateral calcaneus	Functional outcome	0.085	0.161
	The change in Böhler’s angle by ratio	Functional outcome	0.100	0.101
Postoperative	Böhler’s angle	Functional outcome	0.223	<0.001
	The difference value of Böhler’s angle between bilateral calcaneus	Functional outcome	0.224	<0.001
	The change in Böhler’s angle by ratio	Functional outcome	0.220	<0.001

Note: The functional outcomes were assessed using American Orthopaedic Foot & Ankle Society scores.

ISSN: 1471-2482