IJCRR - 7(5), March, 2015
MORPHOLOGY OF MENISCI OF KNEE JOINT IN ADULT CADAVERS OF NORTH KARNATAKA
Author: Veeresh Itagi, V. S. Shirol, Jayasudha K.
Introduction: The menisci are crescentic, intracapsular, fibrocartilaginous laminae deepening the articulation of the tibial surfaces that receive the femoral condyles forming the knee joint.
Objective: To assess the incidence of different shapes of the lateral and medial meniscus in north Karnataka population and discuss its clinical implications.
Methods: The cross sectional study included 120 menisci from 60 adult cadaveric knee joints which were preserved in 10% formalin. The morphological variants of the shapes of menisci were macroscopically noted and classified after methodical dissection procedure. The lateral menisci (LM) and medial menisci (MM) were classified as discoid and nondiscoid menisci. Further, the discoid menisci were divided into subgroups as the complete and incomplete discoid menisci. The nondiscoid menisci were subgrouped as crescentic (semilunar) shaped, C shaped, sickle shaped, sided U shaped and sided V shaped.
Results and Conclusion: From our observations, 96.66% of medial menisci were cresentic in shape, 1.66% showed sided V shaped and 1.66% showed sickle shape. Among the lateral menisci 88.33% were C shaped, 6.66% sided U shaped and 5% showed incomplete discoid. This study is useful for the health professionals who work with the treatment of meniscal injuries to create an awareness of the anatomical variations that may exist in the menisci facilitating the rehabilitation process.
Keywords: Discoid, Knee, Lateral meniscus, Medial meniscus, Shape
Veeresh Itagi, V. S. Shirol, Jayasudha K.. MORPHOLOGY OF MENISCI OF KNEE JOINT IN ADULT CADAVERS OF NORTH KARNATAKA International Journal of Current Research and Review. 7(5), March, 43-47
1. Buckwalter JA, Amendolam A, Clark CR. Articular cartilage and meniscus. In: Insall and Scott NW. Surgery of the knee. 1st ed. London: Churchill Livingstone; 1986.p.310.
2. Levangie P, Norkin C. Joint structure and function. 4th ed. Philadelphia: F.A. Davis Company; 2005. Cited by Chivers MD, Howitt SD. Anatomy and physical examination of the knee menisci: A narrative review of the orthopedic literature. J Can Chiropr Assoc 2009; 53(4): 319-33.
3. Rath E, Richmond JC. The menisci: Basic science and advances in treatment. Br J Sports Med 2000; 34: 252–57.
4. Gray JC. Neural and vascular anatomy of the menisci of the human knee. J Orthop Sports Phys Ther. 1999; 29(1): 23-30.
5. Moore KL, Dalley AF. Clinically oriented anatomy. 4th ed. Philadelphia: Lippincott Williams and Wilkins; 1999. p 690-99.
6. Fairbank TJ. Knee joint changes after meniscectomy. Journal of Bone and Joint Surgery 1948; 30B: 664-70.
7. Messner K, Gao J. The menisci of the knee joint: Anatomical and functional characteristics and a rationale for clinical treatment. J Anat 1998; 193:161-78.
8. Nelson E W, LaPrade R F. The Anterior Intermeniscal Ligament of the Knee. An Anatomic Study. The American Journal of Sports Medicine. 2000; 28 (1): 74-76.
9. Kale A, Kopuz C, Edyzer M, Aydin M.E, Demyr M, Ynce Y. Anatomic variations of the shape of the menisci: A neonatal cadaver study, Knee Surg Sports Traumatol Arthrosc. 2006; 14: 975-81.
10. Murlimanju B V, Nair N, Pai S R, Pai M M, Gupta C, Kumar V & Pulakunta T. Morphometric Analysis of the Menisci of the Knee Joint in South Indian Human Fetuses. Int. J. Morphol. 2010; 28(4):1167-71.
11. Murlimanju B V, Nair N, Pai S, Pai M, Chethan P, Gupta C. Morphological study of the menisci of the knee joint in adult cadavers of the South Indian population. Marmara Medical Journal. 2010; 23(2 ): 270-75.
12. Murlimanju B V, Nair N , Pai MM, Krishnamurthy A, Philip C. Morphology of the medial meniscus of the knee in human fetuses. Romanian Journal of Morphology and Embryology. 2010; 51(2): 347-51.
13. Kaplan EB. Discoid lateral meniscus of the knee joint. J.Bone Joint Surg. 1957;39A: 77-87.
14. Almeida SKS, De Moraes ASR, Tashiro T, Neves ES, Toscano EA, De Abreu RMR. Morphometric study of menisci of the knee joint. Int J Morphol. 2004; 22(3): 181-84.
15. Smillie I.S. Injuries of the knee Joint. 4th ed. London: Churchill Living Stone; 1975.p 23-38.
16. Ali S, Dass C, Shah P, Sewards JM. Normal variants of the meniscus. Applied Radiology 2013; 14-18.
17. Clark C.R, Ogden J.A. Development of the menisci of the human knee joint. The Journal of Bone and Joint Surgery 1983; 65A (4): 538-47.
18. Tolo VT. Congenital absence of the menisci and cruciate ligaments of the knee: A case report. J Bone Jt Surg Am 1981; 63: 1022-24.
19. Monllau JC, Gonzalez G, Puig L, Caceres E. Bilateral hypoplasia of the medial meniscus. Knee Surg Sports Traumatol Arthrosc 2006; 14: 112-13.
20. Nakajima T, Nabeshima Y, Fujii H,Ozaki A, Muratsu H, Yoshiya S. Symptomatic anomalous insertion of medial meniscus. Arthoscopy: The Journal of Arthoscopic and Related Surgery 2005; 21(5): 629e1-29e4.
21. Karataglis D, Dramis A, Learmonth DJA. Double-layered lateral meniscus: A rare anatomical aberration. The Knee 2006; 13: 415-16.
22. Vidyadhara S, Rao SK, Rao S. Discoid medial meniscus varied presentation of 3 knees. Saudi Med J 2006; 27(6): 888-91.
23. Dashefsky J. Discoid lateral meniscus in three members of a family: Case reports. J Bone Joint Surg Am1971; 53A:1208-10.
24. Ross JA, Tough ICK, English TA. Congenital discoid cartilage: Report of a case of discoid medial cartilage, with an embryological note. J Bone Joint Surg Br. 1958; 40: 262- 67.
25. Lee B and Min KD. Abnormal band of the lateral meniscus of the knee. Arthroscopy: The Journal of Arthroscopic and Related Surgery 2000;16 ( 6 ): 1-4.
26. Monllau JC, Leon A, Cugat R, Ballester J. Ring shaped lateral meniscus. Arthroscopy 1998; 14(5): 502-04.
27. Kocher MS, Klingele K, Rassman SO. Meniscal disorders: Normal, discoid and cysts. Orthop Clin N Am 2003; 34: 329-40.
28. Yaniv M, Blumberg N. The discoid meniscus. J Child Orthop 2007; 1: 89-96.
29. Le Minor JM. Comparative morphology of the lateral meniscus of the knee in primates. J.Anat. 1990; 170: 161-71.