Table 1.

MRI Studies on Kaplan Fibers.

Study	Cases, n	Mean age, years	KF visibility (%)	MRI criteria	KF injury prevalence (%)	Time between ACL rupture and MRI	Other injury correlated with KF injury
Van Dyck et al. (17)	69	29	100	Van Dyck	33	< 6 weeks	Significant difference in the frequency and grading between KF, and ALL injuries
Batty et al. (18)	161	26	97–100	Batty	24.3–6.4	Before and after 90 days	Injury lateral meniscal injury/collateral ligaments injury/posteromedial tibial bone bruising
Marom et al. (19)	72	27.65	85–89	Batty	46–60	< 6 weeks	NR
Berthold et al. (49)	104	26.8	100	Van Dyck	52.9	< 90 days	Lateral supracondylar/tibial plateau BME
Devitt et al. (27)	267	23.6	100	Batty	17.6	< 60 days	Lateral meniscal tears
Devitt et al. (28)	122	24.2	100	Batty	26.2	< 60 days	NR
Balendra et al. (20)	100	22.3	100	Batty	61	< 21 days	Lateral femoral condyle bone edema/injuries to the superficial MCL, deep MCL/ramp lesions
Lynch et al. (24)	131	27.8	88.5	Van Dyck	38.9	< 90 days	No correlation between KF injury and meniscal tears, or posterolateral tibial bone bruise
Lynch et al. (22)	45	13.2	94.6	Batty/Van Dyck	37.7–11.1	< 90 days	No correlation with meniscal tears/Segond fracture
Runer et al. (25)	66 + 25	38.4/14.3	84.8–76.0	Runer	18.2–16	NR	NR
Shi et al. (26)	51	14.9	88.2	Marom	29.4–35.3	0–182 days	LCL injury/no correlation with MCL or meniscal injury
Watanabe et al. (21)	91	25	93.4	Batty	23.5	< 90 days	No correlation between concomitant ligamentous injury, and meniscal injury
Lord et al. (29)	89	21	100	Batty	30.3	< 60 days	NR
Chandra et al. (10)	134	NR	97.2	Chandra	34	< 90 days	Meniscal tear and bone marrow edema in a classic pivot shift impaction injury pattern

KF, Kaplan fiber; NR, not reported.