Double-Layered Lateral Meniscus Accompanied by Meniscocapsular Separation

Table 1

Reported findings of a double-layered lateral meniscus.

Author	Ethnicity	Sex	Age	Side	History of trauma	Symptom	Symptom duration	Type of double-layered lateral meniscus	Associated pathology
Suzuki et al. [6]	Japanese	Male	14	R	+	Lateral pain, clicking, giving way	3 m	Connected	—
				L	−			Connected	—
	Japanese	Female	16	L	+	Lateral pain, giving way, locking	3 y	Separated	—
Kim et al. [3]	Korean	Male	50	R	+	Lateral pain, clicking, giving way	3 y	?	R. discoid lateral meniscus and cartilage lesion of lateral femoral condyle
Okahashi et al. [5]	Japanese	Male	53	L	+	Lateral pain	15 y	Separated	L. lateral tibial plateau fracture
Karataglis et al. [2]	Indian	Male	57	L	−	Lateral pain, clicking, giving way	1 y	Separated	L. patellar subluxation
Takayama et al. [7]	Japanese	Male	19	R	−	Lateral pain	2 y	Connected	R. bucket handle tear of lateral meniscus
				L	−			Connected	—
	Japanese	Male	13	R	−	Lateral pain, clicking	8 m	Connected	—
				L	−			Connected	—
Checa [1]	?	Male	12	L	−	Effusion	?	?	L. discoid lateral meniscus
Wang et al. [8]	Chinese	Female	46	L	−	Lateral pain, clicking	1 m	Connected	L. cartilage injury to medial femoral condyle
Lee et al. [4]	Korean	Male	22	R	−	Lateral pain	6 m	Separated	—
Present report	Japanese	Male	19	R	+	Lateral pain clicking, locking	2 y	Connected	R. meniscocapsular separation of lateral meniscus

L: left; R: right.