Journal of Experimental Orthopaedics

Table 5 Correlation coefficient among extension angles

From: Gender-specific difference in the recurrence of flexion contracture after total knee arthroplasty

		Total		Males		Females
		ρ	p	ρ	p	ρ	p
Pre-OP	Before TKA	0.59	<.0001**	0.59	0.0002**	0.60	<.0001**
Pre-OP	After TKA	0.27	0.0007**	0.17	0.30	0.31	0.0006**
Pre-OP	Post-OP	0.35	<.0001**	0.41	0.01*	0.37	<.0001**
Before TKA	After TKA	0.30	0.0002**	0.29	0.08	0.28	0.003**
Before TKA	Post-OP	0.41	<.0001**	0.45	0.006**	0.38	<.0001**
After TKA	Post-OP	0.25	0.0018**	0.05	0.74	0.31	0.0008**

Pre-OP preoperative knee extension angle, Post-OP postoperative knee extension angle at 6 months after TKA, Before TKA Intraoperative maximum knee extension angle before TKA, After TKA Intraoperative maximum knee extension angle after TKA
* p<0.05, ** p<0.01

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