• Journal of the Korean Arthroscopy Society
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• v.9 no.2
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• pp.218-221
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• 2005

The most of discoid meniscus is located in lateral side. Medial discoid meniscus is rare. The medial discoid meniscus was reported by Cave and Staples at first in 1941 but rarely reported since then. A 8 year's old boy was diagnosed as having a complete medial discoid meniscus by means of MRI and arthroscopy. Authors performed the arthroscopic partial menisectomy for medial discoid meniscus. For confirmation of the bilaterality, arthroscopic examination on contralateral knee was performed but we did not find a medial discoid meniscus. We report 1 case of a medial discoid meniscus with a brief review of literatures.

• Journal of the Korean Arthroscopy Society
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• v.17 no.1
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• pp.71-75
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• 2013

Root tear of the posterior horn of the medial meniscus can occur from trauma or chronic degeneration, leading to meniscus extrusion, articular cartilage loss, osteophyte formation, and medial joint space narrowing. It is common on middle age with or without minor trauma. We experienced a case of medial meniscus posterior horn root tear in 13 years old boy during baseball game. We performed 1 direct suture anchor repair for medial meniscus posterior horn root tear in adolescent and report clinical result.

• Journal of the Korean Orthopaedic Association
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• v.55 no.5
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• pp.450-455
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• 2020

Posterior root tear of the medial meniscus are well known. Although very rare, there are reports of anterior root tears of the medial meniscus but no reports on traumatic bony avulsion of the anterior medial meniscus root. This paper reports a case of an isolated bony avulsion of the anterior medial meniscus root, which was successfully repaired arthroscopically.

• Journal of the Korean Arthroscopy Society
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• v.2 no.2
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• pp.177-180
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• 1998

Discoid meniscus is an uncommon cause of internal derangement of the knee joint. The discoid medial meniscus is much less common than the discoid lateral meniscus. A 15-year-old male student had a incomplete discoid medial meniscus of right knee combined with a horizontal tear. This was confirmed by magnetic resonance imaging(MRI) and arthroscopic procedure. Partial meniscectomy was performed arthroscopically. An unevenful recovery followed. We report a case of discoid medial meniscus with brief review of literature.

• Journal of the Korean Arthroscopy Society
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• v.13 no.1
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• pp.58-62
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• 2009

A discoid medial meniscus is a relatively rare pathology of the knee joint, and we recently encountered a patient with discoid medial meniscus, and this report is a case of therapeutic experience in this patient. The patient was twenty years old man who had a persistent dull pain for several years without specific trauma history. He was presumptively diagnosed as discoid medial meniscus by MRI, and arthroscopic examination confirmed the presence of the complete type of discoid medial meniscus with horizontal tear. We performed arthroscopic partial meniscectomy, and the patient could get free from symptom.

• Journal of the Korean Arthroscopy Society
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• v.16 no.1
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• pp.60-65
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• 2012

Although the lateral discoid meniscus has been observed frequently, the medial discoid meniscus is an extremely rare anomaly. The incidence of lateral discoid menisci ranges from 1.4% to 15.5% and the incidence of medial discoid menisci ranges from 0.06% to 0.3%. We present 1 patient of bilateral medial discoid menisci with tear on left side and 1 patient of unilateral medial discoid meniscus with tear, that were diagnosed by magnetic resonance imaging (MRI) and arthroscopy. We performed partial meniscectomy on 2 cases of symptomatic medial discoid menisci under arthroscopy and meniscus-related symptoms were relieved. We report 3 cases of 2 patients with medial discoid meniscus.

• Journal of the Korean Arthroscopy Society
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• v.8 no.1
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• pp.51-53
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• 2004

Although the lateral discoid meniscus of the knee has been observed frequently, the discoid medial meniscus has rarely been reported in the literature. A discoid medial meniscus with the horizontal tear and the peripheral tear of upper lip were observed. This tear pattern is not usual in the lateral discoid meniscus as well as in the normal meniscus. A plausible mechanism of the tear pattern compared with the normal shape and the discoid lateral meniscus was discussed in the following.

• Journal of the Korean Arthroscopy Society
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• v.10 no.1
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• pp.95-98
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• 2006

Most of discoid menisci are lateral and medial discoid meniscus is very rare. There is no report about simultaneous medial and lateral discoid meniscus in one knee joint. A 15-year-old male patient was diagnosed as having a complete medial discoid meniscus with horizontal tear and intact incomplete lateral discoid meniscus by means of magnetic resonance image and arthroscopy. The patient was treated by arthroscopic partial meniscectomy for both discoid menisci.

• Journal of the Korean Arthroscopy Society
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• v.11 no.1
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• pp.50-53
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• 2007

Although the lateral discoid meniscus of the knee has been observed frequently, the medial discoid meniscus has very rarely been reported in the literature. A 22-year-old female patient was diagnosed as having a medial discoid meniscus with horizontal tear by means of magnetic resonance image and arthroscopy. The patient was treated by arthroscopic partial meniscectomy.

• Journal of the Korean Arthroscopy Society
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• v.5 no.1
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• pp.45-48
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• 2001

The anterior horn of the medial meniscus is attached to the anterior surface of the tibia. The anterior horns of the medial and lateral menisci are connect with the transverse ligament. The posterior horn of the medial meniscus is firmly attached to the posterior aspect of the tibia just anterior to the insertion of the posterior cruciate ligament. The authors incidentally found an anomalous insertion of posterior horn of medial meniscus into the anterior horn area during arthroscopic examination in the symptomatic knee joint, which had been ruptured anterior cruciate ligament, and report with literature review.