Fixed-loop vs. adjustable-loop cortical button devices for femoral fixation in ACL reconstruction – a systematic review and meta-analysis

Journal of Experimental Orthopaedics

Table 2 Revision rates presented as proportions and odds ratio

Study	ALD-group (n events/n total (%))	FLD-group (n events/n total (%))	OR (95% CI)	Follow-up time	Classification of revision
Boyle 2015 [5]	7/73 (10)	13/115 (11)	0.83 (0.32–2.19)	2 years	Revision surgery due to graft failure^a
Ranjan 2018 [34]	1/50 (2)	2/52 (3.8)	0.51 (0.04–5.56)	2 years	Failure due to reinjury
Asmussen 2018 [4]	7/116 (1.9)	102/1538 (3.6)	0.52 (0.24–1.13)	FLD = 929 days^b ALD = 743 days^b	Revision surgery
Mohamed 2020 [28]	2/30 (6.7)	0/30	-	1 year	Revision surgery due to unsatisfactory results^c
Uribe 2020 [43]	0/24 (0)	0/13 (0)	-	2 years	Revision surgery

^aFailure defined as either a grade 2 + Lachmann, a positive pivot shift or an SSD greater than five millimetres
^bMean follow-up
^cPatients experiences giving away, locking and difficulties with climbing stairs