Orthopedics Hip & Knee Meniscus Injuries The 6 Types of Meniscus Tears By Jonathan Cluett, MD twitter linkedin Jonathan Cluett, MD, is board-certified in orthopedic surgery. He served as assistant team physician to Chivas USA (Major League Soccer) and the United States men's and women's national soccer teams. Learn about our editorial process Jonathan Cluett, MD Medically reviewed by Medically reviewed by Stuart Hershman, MD on June 19, 2020 linkedin Stuart Hershman, MD, is board-certified in orthopaedic surgery. He is the director of adult spinal deformity & complex spinal reconstruction at Massachusetts General Hospital and is on the faculty at Harvard Medical School. Learn about our Medical Review Board Stuart Hershman, MD Updated on June 24, 2020 Print Verywell / Gary Ferster Meniscus tears are a common cause of knee pain and many people end up with arthroscopic knee surgery for their condition. But is surgery always necessary? Are all meniscus tears treated the same? In practice, a variety of factors are used to determine the ideal treatment of a meniscus tear. Some of these factors include the age of the patient, results of nonsurgical treatment, and if there is other damage than just a torn meniscus. In addition, the specific type of meniscus tear can determine the most appropriate treatment. Described here are six common types of meniscus tears. Intrasubstance/Incomplete Tear: An intrasubstance tear is a common finding on an MRI report. Seen in the upper left corner of the image, an intrasubstance tear typically looks normal at the time of surgery. Often these are a sign of early degenerative changes of the meniscus tissue, but seldom are they the sign of a problem. Incomplete and intrasubstance tears of the meniscus are stable injuries, and they generally do not require any surgical treatment. By the time people are in their 20s or 30s, intrasubstance changes of the meniscus tissue are very commonly seen on an MRI. Radial Tear: Radial tears of the meniscus, pictured in the middle of the top row on the image, are the most common type of meniscus tear. These tears are within the avascular zone of the meniscus, where there is no blood supply, and therefore there is little capacity for these tears to heal. Therefore, when these tears come to requiring surgical treatment, typically the only option is to trim out the damaged portion of the meniscus. Horizontal Tear: A horizontal tear is a tear that is most commonly amenable to meniscus repair. Seen in the upper right corner of the image, a horizontal tear runs along the circumferential fibers of the meniscus. Rather than removing the damaged portion of the meniscus, a horizontal tear may be able to be sewn together. The key to determining the treatment of these tears is their location. If located within the vascular portion of the meniscus (near the outer edge) then there is healing potential, and thus repair. When located more centrally, these tears will not heal, even if repaired. Flap Tear: A flap tear of the meniscus, pictured in the bottom right corner of the image, is an unusual pattern of the tear. In circumstances where the flap is causing symptoms of catching in the knee, usually, the flap of the meniscus can simply be removed without removing much tissue at all. Complex Tear: A complex tear means there is a combination of tear patterns. Shown in the middle image on the bottom row, a complex tear often involves both radial and horizontal tear patterns. Typically complex tears are not treated with meniscus repair because of the complex nature of the tear. In some unusual circumstances, some of the torn meniscus can be removed, while other portions can be repaired. Bucket-Handle Tear: A bucket-handle tear is a large type of horizontal tear of the meniscus. These tears often cause the knee to become stuck by causing the torn portion of the meniscus to block normal knee motion. Bucket-handle tears often require more urgent surgical treatment in order to allow the knee to start bending again. Location of the Tear In addition to describing the type of tear, most MRI and surgical reports will describe the location of the tear. Anterior horn tears are less common and located in the front of the meniscus. Posterior horn tears are much more common and located in the back of the meniscus. Central tears are located on the inner side of the meniscus. This is a part of the meniscus without vascular blood supply and therefore not amenable to repair. Peripheral tears are located further on the outside of the meniscus, and these are the types of tears that can sometimes be repaired. Was this page helpful? Thanks for your feedback! Dealing with joint pain can cause major disruptions to your day. Sign up and learn how to better take care of your body. Click below and just hit send! Sign Up You're in! Thank you, {{form.email}}, for signing up. There was an error. Please try again. What are your concerns? Other Inaccurate Hard to Understand Submit Article Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Doral MN, Bilge O, Huri G, Turhan E, Verdonk R. Modern treatment of meniscal tears. EFORT Open Rev. 2018;3(5):260–268. Published 2018 May 21. doi:10.1302/2058-5241.3.170067 Hodgson RJ, O'Connor PJ, Grainger AJ. Tendon and ligament imaging. Br J Radiol. 2012;85(1016):1157–1172. doi:10.1259/bjr/34786470 Mordecai SC, Al-Hadithy N, Ware HE, Gupte CM. Treatment of meniscal tears: An evidence based approach. World J Orthop. 2014;5(3):233–241. Published 2014 Jul 18. doi:10.5312/wjo.v5.i3.233 Patil SS, Shekhar A, Tapasvi SR. Meniscal Preservation is Important for the Knee Joint. Indian J Orthop. 2017;51(5):576–587. doi:10.4103/ortho.IJOrtho_247_17 Jeong HJ, Lee SH, Ko CS. Meniscectomy. Knee Surg Relat Res. 2012;24(3):129–136. doi:10.5792/ksrr.2012.24.3.129 Saliman JD. The circumferential compression stitch for meniscus repair. Arthrosc Tech. 2013;2(3):e257–e264. Published 2013 Jul 12. doi:10.1016/j.eats.2013.02.016 Bochyńska AI, Hannink G, Verhoeven R, Grijpma DW, Buma P. The effect of tissue surface modification with collagenase and addition of TGF-β3 on the healing potential of meniscal tears repaired with tissue glues in vitro. J Mater Sci Mater Med. 2017;28(1):22. doi:10.1007/s10856-016-5832-0 Beaufils P, Becker R, Kopf S, Matthieu O, Pujol N. The knee meniscus: management of traumatic tears and degenerative lesions. EFORT Open Rev. 2017;2(5):195–203. Published 2017 May 11. doi:10.1302/2058-5241.2.160056 Cho SD, Youm YS, Kim JH, Cho HY, Kim KH. Patterns and Influencing Factors of Medial Meniscus Tears in Varus Knee Osteoarthritis. Knee Surg Relat Res. 2016;28(2):142–146. doi:10.5792/ksrr.2016.28.2.142 Ververidis AN, Verettas DA, Kazakos KJ, Tilkeridis CE, Chatzipapas CN. Meniscal bucket handle tears: a retrospective study of arthroscopy and the relation to MRI. Knee Surg Sports Traumatol Arthrosc. 2006;14(4):343-9. doi:10.1007/s00167-005-0678-x Kramer DE, Kalish LA, Martin DJ, et al. Outcomes After the Operative Treatment of Bucket-Handle Meniscal Tears in Children and Adolescents. Orthop J Sports Med. 2019;7(1):2325967118820305. Published 2019 Jan 15. doi:10.1177/2325967118820305 Bolog NV, Andreisek G. Reporting knee meniscal tears: technical aspects, typical pitfalls and how to avoid them. Insights Imaging. 2016;7(3):385–398. doi:10.1007/s13244-016-0472-y Additional Reading Greis PE, Holmstrom MC, Bardana DD, Burks RT. Meniscal Injury: II. Management. Journal of the American Academy of Orthopaedic Surgeons. 2002;10(3):177-187. doi:10.5435/00124635-200205000-00004.