Ankle arthrodesis by compression screws in rheumatoid arthritis: Primary nonunion in 9/35 patients

Figures & data

Figure 1. Ankle no.12.Radiographs (A and B) obtained 5 years after percutaneous surgery.The ankle has not become fused.

Figure 2. Ankle no.6.Radiographs (A and B) obtained 6 years after percutaneous surgery.The ankle is fused.

Figure 3. Ankle no.20.Radiographs (A and B) obtained 2 years after open surgery. The ankle is fused.

Demographic data and outcome of surgery

A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S
1	sin	F	72	1	8	4	Yes	–	109	Yes	58	valgus 15	58	45	55	30	2.6	S
2	dx	F	76	1	10	6	Yes	–	32	Yes	13	–	68	45	70	30	0.6	S
3	dx	F	64	1	12	4	Yes	–	130	Yes	127	varus 8	66	45	58	30	0.1	SS
4	sin	F	65	1	12	4	Yes	–	102	Yes	9	–	56	45	43	20	2.5	SS
5	sin	M	64	1	10	6	No	–	95	No	119	valgus 10	50	50	53	40	2.9	S
6	dx	F	67	1	10	6	Yes	–	66	Yes	78	–	50	40	45	30	2.0	SS
7	dx	M	63	1	12	6	Yes	–	114	Yes	60	–	47	45	48	30	2.8	S
8	sin	F	66	1	12	6	Yes	–	43	Yes	12	–	56	45	58	30	2.6	S
9	dx	F	66	1	12	7	Yes	–	38	Yes	60	–	62	50	64	40	2.8	S
10	dx	M	59	1	12	6	Yes	–	102	Yes	41	–	56	40	61	30	2.4	S
11	dx	F	61	1	11	7	Yes	–	48	Yes	21	–	61	45	64	30	1.6	S
12	dx	F	59	1	10	6	No	–	53	No	60	–	56	40	58	30	1.6	SS
13	sin	M	43	1	12	6	No	–	20	No	15	–	23	10	15	0	1.3	NS
14	sin	F	76	2	8	6	No	Yes	61	Yes	21	valgus 15	53	40	53	30	2.8	S
15	sin	F	68	2	12	6	Yes	–	119	Yes	130	valgus 7	57	50	51	40	2.6	S
16	sin	F	67	2	12	4	Yes	–	121	Yes	168	valgus 20	41	40	37	30	2.4	SS
17	dx	F	70	2	12	6	No	–	102	No	30	–	42	25	59	30	1.8	S
18	sin	F	70	2	10	4	Yes	–	74	Yes	113	–	37	25	46	20	1.5	SS
19	dx	M	67	2	12	8	Yes	–	78	Yes	57	–	30	25	39	30	2.3	NS
20	sin	F	63	2	12	6	Yes	–	77	Yes	21	valgus 10	65	45	61	30	1.4	S
21	sin	M	54	2	10	5	Yes		150	Yes	89	–	73	50	85	40	0.8	S
22	dx	F	55	2	12	6	Yes	–	108	Yes	92	–	60	45	53	30	2.3	SS
23	sin	F	52	2	12	6	Yes	–	80	Yes	65	–	68	45	68	30	0.9	S
24	dx	F	53	2	14	8	No	Yes	62	Yes	73	varus 20	60	45	55	30	1.3	NS
25	dx	F	55	2	12	6	Yes	–	31	Yes	55	–	67	45	70	30	0.4	S
26	dx	F	49	2	12	6	Yes	–	97	Yes	67	varus 10	42	25	46	20	2.0	SS
27	dx	F	46	2	8	4	Yes	–	103	Yes	115	–	70	45	67	30	0.6	S
28	dx	F	46	2	10	6	No	Yes	84	Yes	90	varus 15	51	40	54	30	2.0	SS
29	sin	F	47	2	12	7	No	Yes	76	Yes	83	varus 10	54	40	24	20	1.6	SS
30	dx	F	43	2	10	4	Yes	–	77	Yes	99	–	70	45	81	40	1.3	S
31	dx	F	37	2	12	6	Yes	–	117	Yes	16	varus 8	73	50	75	40	1.5	S
32	dx	F	36	2	12	10	Yes	–	121	Yes	116	–	68	50	83	40	2.1	S
33	dx	F	40	2	10	5	No	Yes	49	Yes	67	–	37	25	51	30	2.9	SS
34	dx	F	30	2	8	5	Yes	–	126	Yes	26	valgus 10	42	25	48	20	2.0	S
35	dx	F	24	2	10	6	Yes	–	68	Yes	38	–	64	40	56	20	0.4	SS

• A Case no.

• B Side

• C Sex

• D Age at surgery

• E 1 percutaneous

  2 open technique

• F Plaster (weeks)

• G Load (weeks)

• H Primary healing

• I Clinical follow-up (months)

• K Final healing

• L Radiographic follow-up (months)

• M Malposition

• N Mazur Total score

• O Mazur Pain score

• P AOFAS Total score

• Q AOFAS Pain score

• R HAQ points

• S Satisfaction

  • NS not satisfied

  • SS somewhat satisfied

  • S satisfied

Figure 4. Scatter plot demonstrating the correlation between the HAQ points and the AOFAS total pain score.Filled symbols represent cases that have undergone percutaneous surgery and unfilled symbols represent those that have undergone open surgery.The outliers are the 2 cases (nos.13 and 29) with an AOFAS score of 15 and 24, respectively.