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The treatment of these type of tears can be either arthroscopy (surgery through a tiny hole in knee) or conservative. They may not even be apparent with an arthroscopic examination. Optimal diagnosis and management is essential to prevent long term sequelae. Results: Medial meniscus posterior horn longitudinal tears in ACL-deficient knees resulted in a significant increase in anterior-posterior tibial translation at all flexion angles except 90 (P < .05). (386) 254-6819, Main Office & Walk-In Clinic They include: Conservati For a young person arthroscopic meniscal repair is the best solution. Full-Thickness Radial Medial Meniscal Tear: Fixation With Inside-Out It presents as a wedge-shaped defect resembling a parrot beak at the free edge of the meniscus as a result of displaced oblique vertical orientation. They are most frequently seen at the posterior horn of the medial meniscus. Helms CA, Laorr A, Cannon WD, Jr. 1075 Mason Ave., Daytona Beach, FL 32117, Twin Lakes A tear can also develop slowly as the meniscus loses resiliency. 3rd Edition. With meniscal repair, weight bearing may be severely limited for up to six weeks following surgery, and protection from heavy stress to the knee extends for up to six months. Your doctor may inject a corticosteroid medication into your knee joint to help eliminate pain and swelling. We have also seen complete meniscal root avulsions in the cruciate ligament-injured knee with complete injury of the medial ligament and posterior oblique ligament that opens in full extension. The meniscus is a piece of rubber-like cartilage in the knee situated within the femur and tibia, or thigh bone and shin bone. Medial and lateral menisci are crescent-shaped fibrocartilage structures that provide joint congruity, stabilization and lubrication and act as shock absorbers for joint preservation. Because the pieces cannot grow back together, symptomatic tears in this zone that do not respond to conservative treatment are usually trimmed surgically. Inferiorly displaced flap tears of the medial meniscus: MR appearance and clinical significance. Successful outcome and patient satisfaction after medial meniscal root repair are established initially upon appropriate diagnosis and patient selection. Vertical flap (oblique, flap, parrot's beak) tears are unstable tears and occur in younger patients. 11 Noyes FR, Barber-Westin SD. Meniscal root tears: significance, diagnosis, and treatment Mui LW, Engelsohn E, Umans H. Comparison of CT and MRI in patients with tibial plateau fracture: can CT findings predict ligament tear or meniscal injury? Horizontal tears can be sewn together rather than removing the damaged portion. Knees with a deficient medial meniscus and an ACL tear have an increased anterior tibial translation of about 60% at 90 of flexion. Oblique tears combine features of radial and longitudinal tears in that they lie perpendicular to the free edge of the meniscus but then curve such that a portion of it lies parallel to the c-shaped fibers of the meniscus. Know why a new medicine or treatment is prescribed, and how it will help you. Although some reports have described successful repair of the avascular portion of the meniscus,11 it is generally accepted that meniscal repair is more likely to be successful if it involves or at least communicates with the meniscal red zone, lying within three to four millimeters of the capsular rim.12 A basic principle of meniscal repair is to rasp the tear edges and the parameniscal synovium above and below the meniscus, which is thought to enhance the vascular healing process.