Completeness

Coverage and completeness
Overall completeness per arthroplasty
Completeness per year

Data Quality » Completeness » Coverage and completeness

TABLE Completeness of registering hospitals and completeness of registered arthroplasties in the LROI based on the hospital information system in 2021

	Number of hospitals in LROI¹ (n)	Completeness of registering hospitals² (%)	Median [range] number of registrations	Completeness of registrations³ (%)
Hip arthroplasties		100
Primary total hip arthroplasties	93		283 [1-899]	99
Primary hip hemiarthroplasties (orthopaedic surgeon)	69		48 [1-263]	96
Primary hip hemiarthroplasties (trauma surgeon)	40		40 [1-154]	74
Hip revision arthroplasties	84		33 [1-316]	98
Knee arthroplasties		100
Primary knee arthroplasties	90		264 [3-866]	97
Knee revision arthroplasties	85		25 [2-359]	97
Ankle arthroplasties
Primary ankle arthroplasties	12	Unknown	7 [1-36]	95
Ankle revision arthroplasties	9		2 [1-9]	96
Shoulder arthroplasties		100
Primary shoulder arthroplasties (orthopaedic surgeon)	81		33 [1-206]	97
Primary shoulder arthroplasties (trauma surgeon)	3		5 [2-10]	25
Shoulder revision arthroplasties	56		3 [1-83]	79
Elbow arthroplasties		Unknown
Primary elbow arthroplasties	34		3 [1-22]	89
Elbow revision arthroplasties	15		2 [1-12]	78
Wrist arthroplasties		Unknown
Primary wrist arthroplasties (orthopaedic surgeon)	10		2 [1-9]	73
Primary wrist arthroplasties (plastic surgeon)	10		3 [1-12]	75
Wrist revision arthroplasties (orthopaedic surgeon)	9		1 [1-4]	93
Wrist revision arthroplasties (plastic surgeon)	4		2 [1-4]	75
Finger arthroplasties		Unknown
Primary finger arthroplasties (orthopaedic surgeon)	12		4 [1-16]	81
Primary finger arthroplasties (plastic surgeon)	24		4 [1-35]	84
Finger revision arthroplasties (orthopaedic surgeon)	2		3 [2-3]	83
Finger revision arthroplasties (plastic surgeon)	4		2 [1-7]	100

¹ Number of hospitals that performed arthroplasties in accordance with their hospital information system in 2021.
² Proportion of total number of hospitals that performed arthroplasties in 2021 (based on Vektis data).
³ Completeness of number of registered arthroplasties in the LROI in October 2022, compared to the total number of arthroplasties performed (based on the hospital information system) in 2021. This pertains only to hospitals that submitted data for comparison..

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Data Quality » Completeness » Overall completeness per arthroplasty

FIGURE Completeness (proportion [%] per joint) of the registration of procedures in the LROI in 2021

TABLE Completeness (proportion [%] per joint)

	Hip¹	Knee	Ankle	Shoulder	Elbow	Wrist	Finger
Number of procedures in HIS (n)	40,413	29,642	156	3,611	211	119	221
Completeness of registrations in the LROI² (%)	97.3	97.5	95.5	93.6	86.3	76.5	83.7

¹ Includes primary total hip arthroplasties, primary hip hemiarthroplasties and hip revision arthroplasties.
² Completeness of number of registered arthroplasties (orthopaedic, trauma and plastic surgery) in the LROI in October 2022, compared to the total number of arthroplasties performed (based on the hospital information system) in 2021. This pertains only to hospital that submitted data for comparison.

Data Quality » Completeness » Completeness per year

TABLE Completeness (proportion [%] per joint) of the registration of procedures in the LROI in 2013-2021

	2013	2014	2015	2016	2017	2018	2019	2020	2021
Hip arthroplasties
Primary total hip arthroplasties	97	96	98	99	99	99	99	99	99
Primary hip hemiarthroplasties (orthopaedic surgeon)	71	84	88	95	96	96	94	97	96
Primary hip hemiarthroplasties (trauma surgeon)	n.a.	n.a.	n.a.	50	64	65	63	68	74
Hip revision arthroplasties	88	93	97	97	98	97	97	98	98
Knee arthroplasties
Primary knee arthroplasties	95	96	98	99	100	99	99	99	97
Knee revision arthroplasties	90	93	98	98	98	97	97	98	97
Ankle arthroplasties
Primary ankle arthroplasties	n.a.	80	91	92	100	98	98	95	95
Ankle revision arthroplasties	n.a.	55	67	94	87	83	55	95	96
Shoulder arthroplasties
Primary shoulder arthroplasties (orthopaedic surgeon)	n.a.	78	94	94	98	91	96	96	97
Primary shoulder arthroplasties (trauma surgeon)	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.	32	25
Shoulder revision arthroplasties	n.a.	74	90	92	90	78	91	93	79
Elbow arthroplasties
Primary elbow arthroplasties	n.a.	70	85	88	91	89	85	92	89
Elbow revision arthroplasties	n.a.	55	86	93	87	85	83	91	78
Wrist arthroplasties
Primary wrist arthroplasties (orthopaedic surgeon)	n.a.	n.a.	n.a.	n.a.	71	29	55	70	73
Primary wrist arthroplasties (plastic surgeon)	n.a.	n.a.	n.a.	n.a.	64	62	50	56	75
Wrist revision arthroplasties (orthopaedic surgeon)	n.a.	n.a.	n.a.	n.a.	18	83	77	100	93
Wrist revision arthroplasties (plastic surgeon)	n.a.	n.a.	n.a.	n.a.	25	50	50	86	75
Finger arthroplasties
Primary finger arthroplasties (orthopaedic surgeon)	n.a.	n.a.	n.a.	n.a.	53	63	66	65	81
Primary finger arthroplasties (plastic surgeon)	n.a.	n.a.	n.a.	n.a.	67	68	60	82	84
Finger revision arthroplasties (orthopaedic surgeon)	n.a.	n.a.	n.a.	n.a.	17	100	90	41	83
Finger revision arthroplasties (plastic surgeon)	n.a.	n.a.	n.a.	n.a.	24	40	57	67	100

Completeness: Number of registered arthroplasies in the LROI compared to the total number of arthroplasties performed based on the hospital information system (HIS). This pertains only to hospitals that submitted data for comparison.
Please note: Ankle, shoulder and elbow arthroplasties were registered since 2014; wrist and finger arthroplasties were registered since 2016.

The completeness of number of registered arthroplasties in the LROI is determined every year in October. Improving data completeness and data quality by registering missing data is an ongoing process.

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