Awareness of performance on outcomes after total hip and knee arthroplasty among Dutch orthopedic surgeons: how to improve feedback from arthroplasty registries

Figures & data

Figure 1. Respondent flowchart. ^a Percentage of total number of respondents.

Table 1. Characteristics of the respondents (n = 194). Values are frequency (%)

Factor	n (%)
Male sexle	177 (91)
Age
	32 (16)
40–50	101 (52)
51–60	42 (22)
	19 (10)
Hospital setting
University medical center	20 (10)
Teaching hospital	72 (37)
General hospital	78 (40)
Private clinic	24 (13)
Type of surgeon ^a
Performing THA	158 (81)
Performing TKA	156 (80)
Performing THA and TKA	120 (62)
No. of THAs/surgeon/year ^b
	34 (21)
50–100	75 (48)
	46 (29)
No response	3 (2)
No. of TKAs/surgeon/year ^c
	37 (24)
50–100	78 (50)
	32 (20)
No response	9 (6)

^a Does the respondent perform only THA,

only TKA, or both THA and TKA?

^b There were 158 THA surgeons.

^c There were 156 TKA surgeons.

Table 2. Associations between awareness of surgeon-group performance and logging in to dashboard, correct funnel-plot interpretation, and knowledge of 1-year revision rate

All respondents performing	Logging on to LROI dashboard ^a		Correct funnel-plot interpretation ^b		Knowledge of 1-year revision rate ^c
	Yes, n (%)	OR (CI) ^d	Yes, n (%)	OR (CI) ^d	Yes, n (%)	OR (CI) ^d
THA (n = 158)	105 (67)		96 (61)		105 (67)
Aware of surgeon-group performance
Yes (n = 77)	69 (90)	7.6 (3.2–18)	59 (77)	2.4 (1.2–4.9)	66 (86)	4.4 (2.0–9.8)
No (n = 64)	34 (53)	Reference	37 (58)	Reference	37 (58)	Reference
TKA (n = 156)	103 (66)		95 (61)		103 (66)
Aware of surgeon-group performance
Yes (n = 78)	65 (83)	4.1 (1.9–9.0)	56 (72)	1.6 (0.8–3.3)	66 (85)	4.9 (2.2–11)
No (n = 64)	35 (55)	Reference	39 (61)	Reference	34 (53)	Reference

^a Logging in at least once every year.

^b Correctly interpreted both funnel plots.

^c Know the 1-year revision rate of their healthcare center of the past 2 years.

^d OR (CI) = odds ratio (95% confidence interval).

Table 3. Composite outcome, stratified by hospital setting and number of arthroplasties performed annually

	Composite outcome good, n	Odds ratio
THA surgeons
All THA-performing respondents (n = 158)	60
Aware of surgeon-group performance
Yes (n = 77)	46	5.3
No (n = 64)	14	Ref.
Hospital setting (n = 158)
University medical center	4	0.4
Teaching hospital	19	0.6
General hospital	31	Ref.
Private clinic	6	0.7
No. of THAs performed per year (n = 155) ^a
	7	0.4
50–100	35	1.4
	18	Ref.
TKA surgeons
All TKA-performing respondents (n = 156)	41
Aware of surgeon-group performance:
Yes (n = 78)	31	3.6
No (n = 64)	10	Ref.
Hospital setting (n = 156)
University medical center	2	0.3
Teaching hospital	15	0.6
General hospital	23	Ref.
Private clinic	1	0.1
No. of TKAs performed per year (n = 147) ^a
	7	2.4
50–100	28	1.0
	6	Ref.

^a Number of arthroplasties performed per year by the respondent.

Figure 2. Currently available performance indicators on the secure LROI dashboard ranked from most to least interesting by respondents. LROI = Netherlands Registry of Orthopedic Implants; PROMs = patient-reported outcome measures.

Figure 3. Percentage of orthopedic surgeons interested in additional performance indicators. Change = difference between pre- and postoperative PROMs. For abbreviations, see Figure 2