Table 2.

Publications specifying attrition and follow-up rates in medium- and long-term follow-up publications. Comparing the number of articles reporting attrition rates in 2015 and 2021. Among the medium-term and long-term articles, the follow-up rates at 3, 4, 5, 10, and 15 years following surgery are reported in the table. In 2015, there were no papers reporting outcomes at 10 and 15 years

	2015	2021
Reported attrition rates
Short-term	23/32 (72%)	35/41 (85%)
Medium-term	14/14 (100%)	4/6 (67%)
Long-term	7/7 (100%)	16/16 (100%)
Medium-term follow-up rates
@ 3 years	51%	84%
@ 4 years	33%	21%
Long-term follow-up rates
@ 5 years	58%	70%
@ 10 years	-	52%
@ 15 years	-	63%