Ramp lesion of the medial meniscus used to be completely disregarded in the past. Ramp lesion has been now put under the spotlight by orthopaedic and sport medicine surgeons and requires attention. It is closely associated with anterior cruciate ligament injury. Major risk factors include chronic laxity, lateral meniscal lesion, anterior cruciate ligament reconstruction revision, anterolateral ligament tear concomitant with anterior cruciate ligament injury, time from injury, pre-operative side-to-side laxity > 6 mm, age < 30 years old, male sex, etc. Radiologists attempt to create diagnostic criteria for ramp lesion using magnetic resonance imaging. However, the only definite method to diagnose ramp lesion is still arthroscopy. Various techniques exist, among which posteromedial approach is the most highly recommended. Various treatment options are available. The success rate of ramp repair is very high. Major complications are uncommon. Cite this article: EFORT Open Rev 2021;6:372-379. DOI: 10.1302/2058-5241.6.200126

Ossicle of the meniscus is an uncommon discovery often misdiagnosed as a loose body, which may lead to intermittent knee discomfort. We present a rare case of meniscal ossicle accompanied by the medial meniscus posterior root tear. A 46-year-old female experienced intermittent left knee pain and after coming to the hospital was diagnosed with a meniscal ossicle. The patient underwent arthroscopic ossicle resection followed by meniscal root repair. The patient had not experienced any complications post-operatively and remains asymptomatic 8 months after the surgery. The purpose of this article is to expand the knowledge of meniscal ossicle and provide a broaden review of its diagnosis and repair.

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