Table 1.

Overview of the relevant data

Number	Age (year)	Cause	MdA preoperativea	MdA follow-up	Follow-up (years)	Complications	Implant failure	Acetabular bone graft	HOb
1	50.4	Posttraumatic	10	18	10	-	-	No	1
2	60.9	Steroid	7		0.4 (died)			No
3	49.7	Idiopathic	9	16	14.6	-	Stem subsidence	No	0
4	32.5	Steroid	7	17	10.2	-	-	Canc.	0
5	32.1	Steroid	7	16	10.6	-	-	Canc.	0
6	55.2	Idiopathic	9		4.7 (died)
7	41.8	Posttraumatic	6	18	10	-	-	No	0
8	46.2	Posttraumatic	9	17	13.1	-	-	Canc.c	1
9	64.7	Idiopathic	7	18	11.8	-	-	No	3
10	49	Idiopathic	7	15	11.1	-	Osteolysis (zone 7)	Struct.d	0
11	32	Alcohol	7	15	13.1	-	-	No	3
12	64.9	Posttraumatic	8	18	12.5	-	-	No	0
13	35	Idiopathic	10	18	7 (lost)	Pulmonary embolism		Canc.	2
14	39.5	Idiopathic	10	17	15	-	-	No	0
15	64.5	Idiopathic	6	18	10	-	-	No	0
16	64.5	Idiopathic	6	18	10	-	-	No	0
17	74.4	Idiopathic	11	17	6.1 (bedridden)	-	-	No	0
18	44.9	Idiopathic	7		0.6 (died)	-	-
19	38.2	Posttraumatic	8	15	10.2	-	Stem revision	Struct.	4
20	37.1	Posttraumatic	7	16	14.7	5 dislocations at 4/13 years	-	No	0
21	77	Steroid	11	15	5.9 (died)	-	-	No	2
22	78.7	Idiopathic	6	15	5.6 (died)	-	-	No	0
23	54.5	Idiopathic	11	17	10.6	Traumatic dislocation at 5 years	-	No	0
24	49.7	Posttraumatic	9	18	11.2		-	No	1
25	31	Alcohol	10	13	10.5	Dislocation at 2 weeks	-	Canc.	2
26	53.2	Idiopathic	10	14	10.2	-	-	No	3
27	38.4	Steroid	6	17	13.2	-	-	No	0
28	41	Steroid	8	17	10.6	-	-	No	2
29	66.9	Idiopathic	7	18	13.4	-	-	Canc.	0
30	37.7	Idiopathic	5	17	14.3	-	-	No	0
31	53.4	Idiopathic	7	16	13.5	-	ARRH loosening	Canc.	0
32	48.3	Alcohol	6	16	10.6	-	-	Canc.	3

^aMdA, Merle d’Aubigné Score

^bHO, Heterotopic ossification

^cCanc., Cancellous bone graft

^dStruct., Acetabular reconstruction