. Author manuscript; available in PMC: 2015 Apr 6.

Published in final edited form as: J Hand Surg Am. 2010 Mar;35(3):359–367.e5. doi: 10.1016/j.jhsa.2009.12.003

Table 1. Study Characteristics of Published Kienbock's Abstracts.

	Total Abstracts (n = 175)	English Article (n = 124)	Non-English Article (n = 51)	P Value
Country of Journal Origin				<0.001^δ
US	63	63 (51%)^†	0 (0%)^‡
Europe	96	52 (42%)^†	44 (86%)^‡
Asia	12	8 (6%)^†	4 (8%)‡
Other	4	1 (1%)^†	3 (6%)^‡
Procedure Type^*				0.257^ζ
Joint Leveling	51	32 (25%)^†	19 (33%)^‡
Implant/Transposition Arthroplasty	36	26 (20%)^†	10 (17%)^‡
Partial Wrist Fusion	25	17 (13%)^†	8 (14%)^‡
Vascular Bone Graft/Pedicle	18	10 (8%)^†	8 (14%)^‡
Salvage	22	18 (14%)^†	4 (7%)^‡
Other	36	27 (21%)^†	9 (16%)^‡
Overall Outcomes				0.053^ζ
Positive	92	71 (57%)^†	21 (41%)^‡
Neutral/Negative	83	53 (43%)^†	30 (59%)^‡
Mean Number of Wrists per Study^α	19.8	18.8	22.3	0.415^ε
Complication Rate^β	17.7%	17.0%	22.7%	0.435^ε
Mean Follow-Up (months) ^γ	71	68	83	0.276^ε
Presence of Statistical Analysis	52	50 (40%)^†	2 (4%)^‡	<0.001^ζ
Time to Publication (years)^π	5.1	5.4	3.5	0.103^ε
Length of Patient Enrollment (years) ^Ω	10.0	10.4	7.3	0.117^ε

^†

Data presented as number of English abstracts (% of total English abstracts)

^‡

Data presented as number of non-English abstract (% of total non-English abstracts)

For studies including more than one surgical procedure, separate entries were made for each procedure type

^α

Only includes wrists corresponding to surgical Kienbock's patients

^β

Data presented as the average complication rate for studies with available data; Reported in 78 of 124 English articles (63%) and 11 of 51 non-English articles (22%)

^γ

Data reported in 110 of 124 English articles (89%) and 30 of 51 non-English articles (59%)

^π

Data presented as time from end of patient enrollment to publication; Reported in 75 of 124 English articles (60%) and 12 of 51 non-English articles (24%)

^Ω

Data reported in 75 of 124 English articles (60%) and 12 of 51non-English articles (24%)

^δ

Statistical analysis using Fisher's exact test

^ε

Statistical analysis using two-tailed t-test

^ζ

Statistical analysis using chi-square test