Table I.

Summary of demographic characteristics of noncomparative studies^∗

Authors	Population: primary OA vs. various†	Component	No. of participants	Total no. of shoulders with radiolucency at final follow-up	ASES score	Constant score	Revision rate
Arnold et al,5 2011	Primary	Pegged	35	11		81.3	0
Bell and Coghlan,7 2014	Primary	Pegged	50	8	92.58	86	0.020
Budge et al,9 2013	Various	Keeled	19	1	70.5		0.158
Collin et al,12 2011	Primary	Keeled	56	20		63	0.054
De Wilde et al,14 2013	Various	Pegged	34	4		72
Denard et al,15 2013	Primary	Keeled	50	22		73.4	0.34
Fox et al,19 2013	Various	Keeled	151	102			0.046
Gazielly and Scarlat,23 2015	Primary	Keeled	39	6		73	0.026
Greiner et al,25 2013	Various	Pegged	90	24		84.2	0.075
Groh,26 2010	Various	Pegged	83	0			0
Gulotta et al,27 2015	Primary	Pegged	40		80.1		0.05
Ho et al,28 2013	Primary	Pegged	66	29
Hsu et al,29 2014	Unspecified	Pegged	50		89.85		0.04
Kooistra et al,31 2017	Primary	Keeled	29			84	0
McLendon et al,35 2017	Various	Pegged	287	227			0.091
Merolla et al,36 2016	Primary	Pegged	40	2	93.4	69.8	0
Nuttall et al,39 2012	Primary	Pegged	11	6	85	63
Nuttall et al,38 2017	Primary	Pegged	11		74.7	61.4
Press et al,42 2014	Various	Pegged: perforated	18		91	77.4
		Pegged: unperforated	34		82.6	75.6
Service et al,45 2017	Various	Pegged	71	20			0.042
Vidil et al,49 2013	Various	Pegged	27	3		74.5	0
Walch et al,51 2011	Primary	Keeled	302	57		67.6	0.026
Walch et al,50 2012	Primary	Keeled	518	166
Wirth et al,53 2012	Various	Pegged	44		84.5		0.023
Young et al,54 2011	Primary	Keeled	217	99		57.6	0.168

OA, osteoarthritis; ASES, American Shoulder and Elbow Surgeons.

^∗All values are presented at latest follow-up; number of participants are based on participants included in the radiolucency analysis.

^†Various includes inflammatory arthritis, post-traumatic arthritis, osteonecrosis, rheumatoid arthritis, and other.