Dual mobility cups in primary total hip arthroplasties: trend over time in use, patient characteristics, and mid-term revision in 3,038 cases in the Dutch Arthroplasty Register (2007–2016)

Figures & data

Figure 1 Trend in the use of dual mobility cup (DMC) in total hip arthroplasty (THA) in the period 2010–2016 in the Netherlands (n = 3,038).

Table 1. Types of dual mobility cup THA used in the period 2007–2016 the Netherlands (n = 3,038)

Type	Cemented	Cementless
Biomet Avantage	1,904	84
Biomet Avantage Reload	–	339
Biomet Avantage Rev HA	–	5
Smith & Nephew Polarcup	79	273
Amplitude Saturne	164	85
Mathys SeleXys DS Cup	27	54
Groupe Lepine Cupule Quattro	17	–
Groupe Lepine Cupule HAP Press-F	–	7

Table 2. Patient characteristics in THA according to type of acetabular cup (n = 212,915). Values are frequency and (%) unless otherwise specified

	DMC THA	UC THA
	n = 3,038	n = 212,915
Male sex, n (%)	1,104 (36)	70,144 (33)
Mean age (SD)	70 (13)	69 (11)
Operations before (yes)	632 (21)	10,048 (5)
ASA
I	308 (10)	47,409 (22)
II	1,724 (57)	129,460 (61)
III–IV	951 (31)	27,748 (13)
Fixation
Cemented	1,710 (56)	60,955 (29)
Hybrid (acetabulum cemented)	495 (16)	9,033 (4)
Hybrid (femur cemented)	126 (4)	9,932 (5)
Uncemented	674 (22)	130,911 (62)
Diagnosis
Osteoarthritis	1,688 (56)	185,062 (87)
Fracture (acute)	424 (14)	7,065 (3)
Late posttraumatic	406 (13)	4,415 (2)
Other ^a	476 (16)	14,163 (7)
Approach
Anterior	96 (3)	21,102 (10)
Anterolateral	41 (1)	15,801 (7)
Direct lateral	254 (8)	44,249 (21)
Posterolateral	2,607 (86)	128,275 (60)
Trochanter osteotomy	1 (0)	71 (0)
Other	8 (0)	635 (0)
Diameter (mm)
22–28	2,784 (92)	66,703 (31)
32	–	93,619 (44)
36	–	4,002 (19)
≥ 38	–	1,452 (1)

Numbers do not add up to total due to missing data.

DMC: dual mobility cup; UC: unipolar cup; THA: total hip arthroplasty.

a Other: dysplasia, inflammatory arthritis, osteonecrosis, post-Perthes, tumor (unspecified).

Figure 2 Cumulative incidence of cup revision according to type of cup (all diagnoses) in the period 2007–2016 in the Netherlands (n = 215,953). THA: total hip arthroplasty.