Table 2.

Clinical results

		Hemophilia	Rheumatoid arthritis	p-Value
Number of knees (%)		48 (34.3)	92 (65.7)
Knee score	Preoperative	33.5 ± 5.2	41.2 ± 4.1	< 0.001
	Last follow-up	76.9 ± 7.3	82.3 ± 4.2	< 0.001
	Change	43.4 ± 6.9	41.1 ± 5.9	0.043
Functional score	Preoperative	33.4 ± 5.5	40.5 ± 3.8	< 0.001
	Last follow-up	78.1 ± 4.9	82.0 ± 4.7	< 0.001
	Change	44.7 ± 6.2	41.4 ± 6.3	0.004
WOMAC score	Preoperative	67.6 ± 4.2	63.8 ± 5.9	< 0.001
	Last follow-up	20.7 ± 2.3	17.9 ± 2.1	< 0.001
	Change	−46.9 ± 4.1	−45.9 ± 6.1	0.325
Flexion contracture (°)	Preoperative	16.5 ± 12.5	13.1 ± 13.8	0.159
	Last follow-up	5.6 ± 6.5	1.4 ± 4.5	< 0.001
	Change	−10.9 ± 11.0	−11.8 ± 12.4	0.673
Maximum flexion (°)	Preoperative	68.1 ± 32.0	117.2 ± 23.8	< 0.001
	Last follow-up	79.8 ± 21.8	128.6 ± 13.2	< 0.001
	Change	11.7 ± 27.6	11.4 ± 23.1	0.958
Range of motion (°)	Preoperative	51.9 ± 34.3	103.4 ± 30.8	< 0.001
	Last follow-up	74.2 ± 23.3	127.3 ± 14.1	< 0.001
	Change	22.3 ± 31.3	23.9 ± 28.9	0.758

WOMAC Western Ontario and McMaster Universities Osteoarthritis Index