Staged replacement of both hips and both knees in patients with rheumatoid arthritis

Table 3 The sequence and interval of operation

Number	Sequence	Interval (months)	Number	Sequence	Interval (months)
1	RH + RK → LH + LK	1	16	LH → LK → RH → RK	1 → 7 → 5
2	RK → LK → LH → RH	1 → 30 → 9	17	LK → RK → RH → LH	1 → 84 → 2
3	LH + LK → RH + RK	1	18	RH → RK → LK → LH	1 → 1 → 108
4	RH → LH → LK → RK	1 → 1 → 2	19	LH → RH → RK → LK	1 → 36 → 76
5	LH → RH → RK → LK	1 → 2 → 2	20	RH → RK → LH → LK	2 → 2 → 43
6	RH → LH → RK → LK	1 → 1 → 2	21	RH → LH → RK → LK	1 → 3 → 21
7	RH → LH → LK → RK	1 → 38 → 3	22	LH → RH → LK → RK	2 → 29 → 3
8	LH → RK → LK → RH	12 → 1 → 36	23	RH → LH → LK → RK	1 → 1 → 10
9	LH → RH → RK → LK	1 → 11 → 4	24	LK → LH → RH → RK	2 → 9 → 4
10	LK → LH → RH → RK	5 → 8 → 2	25	RH → LH → LK → RK	9 → 6 → 4
11	LH → RH → LK → RK	2 → 11 → 36	26	LH → RH → LK → RK	2 → 13 → 36
12	LH → RH → LK → RK	1 → 2 → 1	27	LH → RH → RK → LK	2 → 2 → 1
13	LH + LK → RH + RK	3	28	LH + LK → RH + RK	5
14	RH → LH → LK → RK	4 → 7 → 2	29	LH → RH → LK → RK	3 → 8 → 2
15	LH → RH → LK → RK	1 → 2 → 2	30	LH → RH → LK → RK	4 → 4 → 6

ISSN: 1471-2474