Bilateral Complete Discoid Medial Meniscus: A Case Report

ABSTRACT

Discoid medial meniscus is very rare, and bilateral discoid medial meniscus is extremely rare. We report a case of bilateral discoid medial meniscus. The patient had symptoms in the right knee but was asymptomatic in the left knee. We performed magnetic resonance imaging for both knees. The patient was treated by saucerization and by all inside repair of the anterior horn tear in the right knee. We performed second-look arthroscopy after 18 months.

Bilateral discoid medial meniscus - saucerization - all inside repair

REFERENCES

• 1 Young R B. The external semilunar cartilage as a complete disc. In: Cleland J, Mackay J Y, Young R B, eds. Memoirs and Memoranda in Anatomy. London, UK: Williams Norgate; 1889: 179
• 2 Cave E F, Staples O S. Congenital discoid meniscus as cause of internal derangement of the knee.  Am J Surg. 1941;  54 371-376
• 3 Auge II W K, Kaeding C C. Bilateral discoid medial menisci with extensive intrasubstance cleavage tears: MRI and arthroscopic correlation.  Arthroscopy. 1994;  10 313-318
• 4 Dickason J M, Del Pizzo W, Blazina M E, Fox J M, Friedman M J, Snyder S J. A series of ten discoid medial menisci.  Clin Orthop Relat Res. 1982;  (168) 75-79
• 5 Bae D K, Yoon K H, Ko B W, Kwon C H, Lee J H. Discoid medial meniscus? 2 case report.  J Korean Orthop Assoc Surg.. 2001;  36 385-388
• 6 Marchetti M E, Jones D C, Fischer D A, Boyd J L, Fritts H M. Bilateral discoid medial menisci of the knee.  Am J Orthop. 2007;  36 317-321
• 7 Weiner B, Rosenberg N. Discoid medial meniscus: association with bone changes in the tibia. A case report.  J Bone Joint Surg Am. 1974;  56 171-173
• 8 Bardeen C R, Lewis W H. Development of the limbs, body wall and back in man.  Am J Anat. 1901;  1 1-36
• 9 Min B H, Ha H K, Khang S Y. Medial discoid meniscus completely coalesced with the anterior cruciate ligament.  Arthroscopy. 2001;  17 E27
• 10 Resnick D, Goergen T G, Kaye J J, Ghelman B, Woody P R. Discoid medial meniscus.  Radiology. 1976;  121 ((3 Pt. 1)) 575-576
• 11 Klingele K E, Kocher M S, Hresko M T, Gerbino P, Micheli L J. Discoid lateral meniscus: Prevalence of peripheral rim instability.  J Pediatr Orthop. 2004;  24 79-82
• 12 Kim S J, Choi C H. Bilateral complete discoid medial menisci combined with anomalous insertion and cyst formation.  Arthroscopy. 1996;  12 112-115
• 13 Pinar H, Akseki D, Karaoğlan O, Ozkan M, Uluç E. Bilateral discoid medial menisci.  Arthroscopy. 2000;  16 96-101
• 14 Tachibana Y, Yamazaki Y, Ninomiya S. Discoid medial meniscus.  Arthroscopy. 2003;  19 E12-E18
• 15 Vandermeer R D, Cunningham F K. Arthroscopic treatment of the discoid lateral meniscus: Results of long-term follow-up.  Arthroscopy. 1989;  5 101-109
• 16 Hayashi L K, Yamaga H, Ida K, Miura T. Arthroscopic meniscectomy for discoid lateral meniscus in children.  J Bone Joint Surg Am. 1988;  70 1495-1500