Your doctor will likely recommend physical therapy. Meniscus tears can occur at any age. Exercise programs start with an initial routine and then progress to intermediate and advanced routines. Arthroscopy 32(7):13371345, Kim NK, Bin SI, Kim JM, Lee CR, Kim JH (2017) Meniscal extrusion does not progress during the midterm follow-up period after lateral meniscal transplantation. Get useful, helpful and relevant health + wellness information, 9500 Euclid Avenue, Cleveland, Ohio 44195 |, Important Updates + Notice of Vendor Data Event, (https://www.merckmanuals.com/home/injuries-and-poisoning/sprains-and-other-soft-tissue-injuries/knee-sprains-and-related-injuries), (https://www.niams.nih.gov/health-topics/knee-problems#tab-overview), (https://orthoinfo.aaos.org/en/treatment/knee-arthroscopy/), (https://orthoinfo.aaos.org/en/diseases--conditions/meniscus-tears/), (https://www.physio-pedia.com/Meniscal_Repair). Knee Surg & Relat Res 34, 35 (2022). Many recent studies have shown that theres no advantage to surgery with this type of tear, and that physical therapy works just as well. defined significant ME as when more than 25% of the meniscal body width extends beyond the tibial limit [14,15,16,17]. Ann Rheum Dis 68(6):938947, Ishii Y, Deie M, Fujita N, Kurumadani H, Ishikawa M, Nakamae A et al (2017) Effects of lateral wedge insole application on medial compartment knee osteoarthritis severity evaluated by ultrasound. Therefore, with this article we aim to provide an up-to-date review of the literature with an emphasis on the clinical significance and new concepts in the treatment and reduction of ME in the different knee pathologies in which it is encountered. We do not endorse non-Cleveland Clinic products or services. This study was exempted from the requirement for local institutional review board approval as it is a narrative review of the literature. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. maceration Therefore, the relative values may be significant [17]. During an arthroscopy, a small, lighted, optic tube First, surgery is rarely necessary for degenerative meniscus tears. You should call your healthcare provider if you: You may want to ask your healthcare provider: A torn meniscus is a very common knee injury. Doctors may use additional clinical tests that assess range of motion in the knee from various positions. Your doctor may give you a joint injection of glucocorticoids to reduce swelling. Meniscal tears: Current understanding, diagnosis, and management. Knee Surg Sports Traumatol Arthrosc 29(4):11971205, Song JH, Bin SI, Kim JM, Lee BS (2020) Postoperative subchondral bone marrow lesion is associated with graft extrusion after lateral meniscal allograft transplantation. (ACLR+LM tear repair) demonstrated that the narrowing was only 0.04mm at 3.4years postoperatively, whereas another study showed widening of 0.1mm at 3.5years postoperatively [85, 90]. Therefore, ultrasound (U/S) was recently introduced as a reliable alternative to MRI for the evaluation of ME, which also offers the possibility for dynamically assessing ME in various positions, as well as in a weight-bearing state, in an inexpensive and feasible manner [20,21,22]. This post will carry two messages, both equally important. Some meniscus tears require surgery to heal the meniscus and restore the knees range of motion. Physical therapy can help you recover from a meniscus tear by decreasing pain, strengthening and improving the flexibility in your knee, and increasing its range of Degenerative lesions of the knee joint are more commonly present during concurrent ACLR with meniscectomy than with intact or repaired menisci. Playing contact sports also increases your risk of a meniscus tear. Conservative treatment for some meniscus tears is well documented as effective. Its best to see a doctor for diagnosis of knee pain and a treatment plan. J ISAKOS 6(1):3545, Beaufils P, Becker R, Kopf S, Englund M, Verdonk R, Ollivier M et al (2017) Surgical management of degenerative meniscus lesions: the 2016 ESSKA meniscus consensus. https://doi.org/10.1002/acr.24394, Wu PT, Shao CJ, Wu KC, Wu TT, Chern TC, Kuo LC et al (2012) Pain in patients with equal radiographic grades of osteoarthritis in both knees: the value of gray scale ultrasound. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. Arthrosc J Arthrosc Relat Surg Off Publ Arthrosc Assoc N Am Int Arthrosc Assoc 26(12):16331640, Jang SH, Kim JG, Ha JG, Shim JC (2011) Reducing the size of the meniscal allograft decreases the percentage of extrusion after meniscal allograft transplantation. Winkler. Knee Surg Sports Traumatol Arthrosc 23(1):290302, Gelber PE, Torres-Claramunt R, Poggioli F, Prez-Prieto D, Monllau JC (2020) Polyurethane Meniscal Scaffold: Does Preoperative Remnant Meniscal Extrusion Have an Influence on Postoperative Extrusion and Knee Function? Dawson LJ, et al. See additional information. complex tear: a combination of all or some horizontal, vertical, and radial-type tears. The diagnostic process starts with a medical history and a thorough examination that may include clinical tests. There is no consensus whether medial or lateral MAT is superior in terms of medium-term (510years) and long-term (>10years) survival. Our website services, content, and products are for informational purposes only. Arthroscopy 36(4):11351141, Article Tsujii et al. 29(4):295301, Moon HS, Choi CH, Jung M, Lee DY, Hong SP, Kim SH (2020) Early surgical repair of medial meniscus posterior root tear minimizes the progression of meniscal extrusion: 2-year follow-up of clinical and radiographic parameters after arthroscopic transtibial pull-out repair. A tear in this "red" zone may heal on its own, or can often be repaired with surgery. Pathology. Knee Surgery & Related Research Med Hypotheses 1(101):4851, Article Orthop J Sports Med 4(8):2325967116663185, Van Der Straeten C, Byttebier P, Eeckhoudt A, Victor J (2016) Meniscal allograft transplantation does not prevent or delay progression of knee osteoarthritis. Moreover, instead of a single value, Miller et al. Post-ACLR ME is also a concern and should be prevented by repairing concurrent meniscal tears and centralizing the meniscus along with the ACLR. However, to date there is still no well-designed clinical trial available to ascertain the effectiveness of centralization in reducing ME. volume34, Articlenumber:35 (2022) Meniscus tears can occur from an injury or wear and tear on the joint over time. RICE stands for rest, ice, compression and elevation. Pharmaceuticals 14(3):205, Raynauld JP, Pelletier JP, Abram F, Dodin P, Delorme P, Martel-Pelletier J (2016) Long-term effects of glucosamine and chondroitin sulfate on the progression of structural changes in knee osteoarthritis: six-year followup data from the osteoarthritis initiative. Your healthcare provider may recommend taking a nonsteroidal anti-inflammatory (NSAID) medicine (such as ibuprofen or aspirin) to relieve pain and reduce swelling. Hart et al. 2023 BioMed Central Ltd unless otherwise stated. Meniscus Tear J Orthop Sci 24(1):121127, Chiba D, Sasaki E, Ota S, Maeda S, Sugiyama D, Nakaji S et al (2020) US detection of medial meniscus extrusion can predict the risk of developing radiographic knee osteoarthritis: a 5-year cohort study. Google Scholar, Malas F, Kara M, Kaymak B, Aknc A, zakar L (2014) Ultrasonographic evaluation in symptomatic knee osteoarthritis: clinical and radiological correlation. PubMed if you have sudden pain from a knee injury. Bend the unaffected leg, touching the toe to the floor as necessary for balance. Knee 23(4):627630, Ishii Y, Ishikawa M, Kurumadani H, Hayashi S, Nakamae A, Nakasa T et al (2020) Increase in medial meniscal extrusion in the weight-bearing position observed on ultrasonography correlates with lateral thrust in early-stage knee osteoarthritis. Int Orthop 43(11):25492556, Figueroa F, Figueroa D, Calvo R, Vaisman A, Espregueira-Mendes J (2019) Meniscus allograft transplantation: indications, techniques and outcomes. PubMed Central Magnetic resonance imaging (MRI) mid-coronal view of the right knee, where the tibial eminences are most prominent. Check for errors and try again. (2016). Google Scholar, Hart HF, Crossley KM, Felson D, Jarraya M, Guermazi A, Roemer F et al (2018) Relation of meniscus pathology to prevalence and worsening of patellofemoral joint osteoarthritis: the multicenter osteoarthritis study. Springer Nature. It can happen playing sports, exercising or just doing daily activities. Meniscus tears are very common. Orthop J Sports Med 9(3):2325967121989678, Koga H, Watanabe T, Horie M, Katagiri H, Otabe K, Ohara T et al (2017) Augmentation of the pullout repair of a medial meniscus posterior root tear by arthroscopic centralization. Am J Sports Med 38(8):15421548, Yanagisawa S, Kimura M, Hagiwara K, Ogoshi A (2020) Association between postoperative meniscal extrusion and clinical outcomes of the pullout fixation technique for medial meniscus posterior root tear. Several strategies have been proposed to reduce allograft extrusion. Become a Gold Supporter and see no third-party ads. medial meniscal extrusion is associated with If your symptoms persist after 3 months or your symptoms become significant, your doctor may recommend surgery to repair the tear. https://doi.org/10.1186/s43019-019-0019-x, Article Meniscus Tears, Repair, and Transplantation > Fact Factors that increase the risk of a meniscus tear include: Doctors classify meniscus tears according to their shape and location. The authors declare that they have no competing interests. However, its posterior extrusion progressed significantly regardless of the healing status [90]. Future research should focus on the role of additional centralization of the meniscus during arthroscopic debridement for the treatment of moderate knee OA. Am J Sports Med 46(5):12431250, Noyes FR, Barber-Westin SD (2016) Long-term survivorship and function of meniscus transplantation. Degenerative tears occur mainly in the medial meniscus and are most commonly encountered in older patients without any history of significant trauma [4]. In some cases, surgery may be recommended to repair a torn meniscus. However, the incidence of severe knee OA is much higher in patients who have been subjected to ACLR than individuals with intact ACL [86, 87]. It also outlines symptoms, diagnosis, and treatment and provides information on when to contact a doctor. Google Scholar, uczkiewicz P, Daszkiewicz K, Chrcielewski J, Witkowski W, Kuik L (2017) High meniscal slope angle as a risk factor for meniscal allograft extrusion. X-rays are useful in finding other causes of knee pain, but they will not show a meniscus tear. Last reviewed by a Cleveland Clinic medical professional on 04/17/2021. The time of recovery varies depending on: The meniscus is a C-shaped band of cartilage that goes around the knee joint and cushions the junction of your thighbone (femur) and shinbone (tibia). The primary site of destruction is the soft tissue fibers which couple the deep layers of the ACL to the LM and the LM to the tibial plateau. The menisci are crescent-shaped, fibrocartilaginous structures that play a crucial role in the load transition and distribution of the contact forces along the tibiofemoral articulation. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. Feeling like your knee might give out beneath you. If you have surgery to remove all or part of your meniscus, you may be at higher risk of developing arthritis down the road. ME is strongly correlated with posterior root tears of the menisci [6]. The precise location of your knee pain can help you narrow down the potential cause. Posterior Horn Medial Meniscus Tears Howard J. Luks, The authors did not receive funding for this study. How can you tell whether you have a meniscus tear? A physical therapist will individualize a persons exercise regimen to prevent further injury. However, further investigation is needed to evaluate the effect of the ACLR on the restoration of the MM function [88]. [74] retrospectively analyzed MRI series with isolated ME without concomitant serious knee pathologies, and found that isolated significant ME (>3mm) was associated with MTL abnormalities. [54] showed that varus alignment factors, and specifically medial proximal tibial angle (MPTA), were significantly related to the extent of MME, especially as the knee OA grade progressed. However, evaluation by absolute value alone may be limited due to differences in implant size, bone and cartilage condition, and individual patient characteristics. Astur et al. This condition may lead to increased cartilage degeneration, progressive OA and allograft failure, as mentioned in several biomechanical studies [17, 111]. Knee 24(6):14081413, Phua JKS, Razak HRBA, Mitra AK (2020) Arthroscopic procedures could delay the need for a subsequent knee arthroplasty in older patients with end-stage osteoarthritis. Knee Surg Sports Traumatol Arthrosc 27(2):361368, Jacob G, An S, Kumar G, Varghese J (2020) Percutaneous arthroscopic assisted knee medial collateral ligament repair. However, arthroscopic debridement and osteotomies around the knee are also being employed in some instances in moderate knee OA before a TKR is required [51, 52]. Meniscus Treatments for macerated skin caused by wounds include specific types of bandages and dressings, including: Occlusive dressings. Following surgery, a doctor may advise engaging in 2030 minutes of exercise twothree times per day. With a surgical treatment approach, exercises are necessary for recovery. Clinical significance and management of meniscal extrusion in different knee pathologies: a comprehensive review of the literature and treatment algorithm. Can diet help improve depression symptoms? A Meta-analysis Am J Sports Med 46(9):22852290, Smith NA, Parkinson B, Hutchinson CE, Costa ML, Spalding T (2016) Is meniscal allograft transplantation chondroprotective? Furthermore, supplementary centralization of the meniscus appears to be able to adequately reduce the ME, as it also addresses potential MTL lesions. Furthermore, they performed an open MTL repair in 15 patients with meniscal tear and medial ME through a mini-incision with three interconnecting suture anchors (Fig. PLoS One. 1), although it may underestimate ME, as the assessment is routinely not performed under weight-bearing conditions [18,19,20]. WebDamage to the medial meniscus root, for example by a complete radial tear, destroys the ability of the knee to withstand hoop strain, resulting in contact pressure increases and kinematic alterations. The term meniscal extrusion (ME) is used to describe the radial meniscal body displacement beyond the peripheral tibial plateau margin [7, 8]. This post goes into considerable detail about managing a knee with arthritis and a complex or degenerative meniscus tear. Am J Sports Med 47(12):28882894, Delinc P, Ghafil D (2012) Anterior cruciate ligament tears: conservative or surgical treatment? People with arthritis in their knees are also more prone to meniscus tears. (2012). How Viagra became a new 'tool' for young men, Ankylosing Spondylitis Pain: Fact or Fiction. Treatment usually starts with the RICE method: Rest. Slowly raise the extended leg 12 inches from the floor and then slowly lower it back. Part of The menisci serve a number of important functions, such as: According to 2021 research, a meniscus tear is a common injury, affecting 61 out of every 100,000 people in the general population. Our friendly team is here to answer your questions about knee injuries or any other problems with your bones or joints. More importantly, it leads to rapid progression of the degenerative process of the knee as well as substantial morbidity and pain [25,26,27,28]. statement and Am J Sports Med 45(8):18641871, Novaretti JV, Astur DC, Cavalcante ELB, Kaleka CC, Amaro JT, Cohen M (2020) Preoperative meniscal extrusion predicts unsatisfactory clinical outcomes and progression of osteoarthritis after isolated partial medial meniscectomy: a 5-year follow-up study. Healthline Media does not provide medical advice, diagnosis, or treatment. AJR Am J Roentgenol 183(1):1723, Muzaffar N, Kirmani O, Ahsan M, Ahmad S (2015) Meniscal extrusion in the knee: should only 3 mm extrusion be considered significant? Most of the meniscus pathologies have recently been correlated with meniscal extrusion [3, 6]. Treatment for knee meniscus tears may involve: using the rest, ice, compression, and elevation (RICE) method. Am J Sports Med 39(7):14391443, Katagiri H, Miyatake K, Nakagawa Y, Otabe K, Ohara T, Shioda M et al (2019) The effect of a longitudinal tear of the medial meniscus on medial meniscal extrusion in anterior cruciate ligament injury patients. A torn or strained meniscus is generally treated with rest, ice, over-the-counter anti-inflammatory medicines and physical therapy. The menisci are crescent-shaped, fibrocartilaginous structures located between femoral and tibial condyles, which are important for load transmission and distribution, shock absorption, secondary stability and proprioception of the knee joint [1]. Arthrosc Tech 8(5):e495-501, Dean RS, DePhillipo NN, Monson JK, LaPrade RF (2020) Peripheral stabilization suture to address meniscal extrusion in a revision meniscal root repair: surgical technique and rehabilitation protocol. MAT is not a simple surgical procedure, has a high learning curve, and if it is not performed under certain indications (Table 1) it fails, leaving both the surgeon and the patient dissatisfied [106, 109]. Lie on Intermediate routine. A persons initial exercise routine may include an exercise called hamstring contractions. Konstantinos G. Makiev. Arthrosc Tech 6(4):e1335e1339, Masferrer-Pino A, Monllau JC, Abat F, Gelber PE (2019) Capsular fixation limits graft extrusion in lateral meniscal allograft transplantation. Proposed treatment algorithm for meniscal extrusion (ME) in different knee pathologies (OA osteoarthritis, ME meniscal extrusion, HTO high tibial osteotomy, MPRTs meniscal posterior root tears, ACL anterior cruciate ligament reconstruction, LM lateral meniscus, PRT posterior root tear, MAT meniscal allograft transplantation), Krych AJ, Bernard CD, Kennedy NI, Tagliero AJ, Camp CL, Levy BA et al (2020) Medial versus lateral meniscus root tears: is there a difference in injury presentation, treatment decisions, and surgical repair outcomes? Surgery versus conservative treatment for meniscus tears has been a medical topic of controversy for many years. maceration Most authors agree that the transplanted menisci are extruded more frequently than endogenous menisci [15, 102, 105]. Conservative treatment constitutes the first line of therapy in mild or moderate knee OA [46, 47]. OrthoInfo from the American Academy of Orthopaedic Surgeons. [31] showed that lateral ME was associated with worsening of patellofemoral joint OA features at 2-year follow-up. [77] performed arthroscopic centralization of nine extruded lateral menisci with the use of suture anchors, and ME was significantly reduced in 2years of follow-up. An intermediate taking pain medications. WebOne of the main tests for meniscus tears is the McMurray test. Am J Sports Med 45(1):4249, Krych AJ, Bernard CD, Leland DP, Camp CL, Johnson AC, Finnoff JT et al (2020) Isolated meniscus extrusion associated with meniscotibial ligament abnormality. Another promising surgical approach for reducing the ME is the arthroscopic centralization of the extruded meniscus at the point where the capsule adjacent to the meniscus is repaired at the border of the tibial plateau [98, 101]. Based on these findings, they concluded that the all-inside repair of the radial tear of the LM could help maintain its dynamic behavior, thus reducing the biomechanical stress exerted on the adjacent cartilage [89]. Work up slowly to more intense exercise activity. The outer one-third of the meniscus has a blood supply, and so doctors refer to this area as the red zone. Being unable to fully bend or straighten your leg. Int Orthop 39(12):24812487, Winkler PW, Wierer G, Csapo R, Hepperger C, Heinzle B, Imhoff AB et al (2020) Quantitative evaluation of dynamic lateral meniscal extrusion after radial tear repair. https://doi.org/10.1055/s-0040-1715109, Strauss EJ, Day MS, Ryan M, Jazrawi L (2016) Evaluation, treatment, and outcomes of meniscal root tears: a critical analysis review. Arch Orthop Trauma Surg 132(3):321327, Kamatsuki Y, Furumatsu T, Fujii M, Kodama Y, Miyazawa S, Hino T et al (2018) Complete tear of the lateral meniscus posterior root is associated with meniscal extrusion in anterior cruciate ligament deficient knees. It is known that ACL and meniscal function cannot be fully restored even after surgical repair [86, 90]. When we talk about the meniscus, only about 30 % of the meniscus has an intact blood supply and is called the red zone. The remaining part of the meniscus does not have a blood supply and thus, once injured or torn, it cannot heal or be treated. So whether ayurvedic, homeopathic or allopathic medication, none of them can really help. In this review, we delineate the clinical significance of ME in various knee pathologies, as well as when, why and how it should be managed. (2017). Can I make a meniscus tear worse if I run on it? These are the knee compression sleeves we recommend for stability during exercise. Knee Surg Relat Res. Meniscal maceration | Radiology Reference Article The different types of meniscus tear include: Additionally, doctors categorize tears according to their location. Torn Meniscus | Meniscus Tear Treatment Options Finally, meniscal allograft extrusion is also associated with subchondral bone marrow lesions and cysts [2, 115]. These are nonabsorbent Currently, MPRT repair constitutes the treatment of choice, since it restores the hoop tension and the joint kinematics [65], halts the progression of OA and lowers the rate of arthroplasty [66, 67]. During the meniscus surgery, a small instrument called an arthroscope, which has a camera at its tip, is inserted into your knee. We also explore recovery and when to contact a doctor. ADVERTISEMENT: Radiopaedia is free thanks to our supporters and advertisers. In a recent meta-analysis, the percentages of medium-term and long-term survival after medial MAT were 85.8% and 52.6%, respectively, whereas after lateral MAT they were 89.2% and 56.6%, respectively [116]. The recovery time is longer than in the case of a meniscectomy. Without nutrients from blood, tears in this "white" zone cannot heal. Does a degenerative meniscus tear need surgery? PubMed Central Orthop J Sports Med. WebArthroscopic surgery. CAS A tear on the inner two-thirds of the meniscus that wont heal on its own because the area lacks blood flow to stimulate the immune system response. PubMed Central Cite this article. Eur J Radiol Open 20(3):100107, Rowland G, Mar D, McIff T, Nelson J (2016) Evaluation of meniscal extrusion with posterior root disruption and repair using ultrasound. National Institute of Arthritis and Musculoskeletal and Skin Diseases. The mechanical damage of the meniscus caused by extrusion seems to change the loading-bearing capacity of the tibiofemoral compartments, leading to the destruction of the articular cartilage as well the subchondral bone, ultimately contributing to the development or progression of OA [87, 89, 92]. Have swelling that doesnt go away with a few days of RICE and taking NSAIDs. Therefore, they suggested that this type of OA patient, with MME and varus malalignment with a low MPTA, could benefit primarily from an early intervention with high tibial osteotomy (HTO), thus delaying the progression of knee OA. WebThere are two general forms of treatment for meniscus tears: conservative, or nonsurgical, and surgical. The tear frequently occurs while playing sports. Kneecap pain. Your doctor may also recommend conservative measures as a first step if the tear is caused by injury to the knee. Here, find nine gentle exercises that may help strengthen and heal a torn meniscus. Google Scholar, Kim SJ, Choi CH, Chun YM, Kim SH, Lee SK, Jang J et al (2017) Relationship between preoperative extrusion of the medial meniscus and surgical outcomes after partial meniscectomy. Beaufils P, et al. David Prado/Stocksy United. However, knowledge regarding the management of ME remains limited. (D) After the 2 suture limbs have been tied arthroscopically forming a circumferential compression stitch. All rights reserved. Int J Rheum Dis 17(5):536540, PubMed Another successful strategy is osteophyte resection. Knee Surg Relat Res. MK, VSI and GP participated in the study design and helped to draft the manuscript. Therefore, proper placement of the posterior horn is critical to the anatomical repair of the meniscus [125,126,127]. Root repair is indicated when varus malalignment is minimal (<5), the cartilage wear is not advanced (Outerbridge grade 12) and it can be performed arthroscopically either with a transtibial pullout technique or with suture anchors, each with its respective advantages and disadvantages [58]. (2018). (2018). 2021. https://link.springer.com/article/10.1007%2Fs00402-020-03683-1. Therefore, ACL rupture alone cannot cause the posterior extrusion of the MM, and the ACLR alone does not directly cause distinct damage to the MM. Arthroscopy 32(10):20002008, Chernchujit B, Prasetia R (2018) Arthroscopic direct meniscal extrusion reduction: surgical tips to reduce persistent meniscal extrusion in meniscal root repair. In addition, it has been shown that after lateral MAT, the extrusion is correlated with the progression of joint space narrowing (JSN) during long-term follow-up, while after medial MAT, JSN is observed during medium-term follow-up [114]. Knee Surg Sports Traumatol Arthrosc 28(11):34163425, Stein T, Mehling AP, Welsch F, von Eisenhart-Rothe R, Jger A (2010) Long-term outcome after arthroscopic meniscal repair versus arthroscopic partial meniscectomy for traumatic meniscal tears. A tear that gives you a lot of pain or impairs use of your knee may require surgery to remove or repair the torn part of the meniscus. Cleveland Clinic is a non-profit academic medical center. We'll go over how it's done, the recovery timeline, and risks to watch for after the, There are two types of knee locking: a true knee lock and a pseudo knee lock. Call the offices of Dr. Brett Gilbert at (919) 788-8797 or request an appointment online, and let Dr. Gilbert help you get back to There were 6 patients with AHLM cysts in macerated tear group and one patient in vertical tear group. Meniscal tear | Radiology Reference Article They may also share some exercises you can do at home. Sudden twisting movements such as pivoting to catch a ball can tear the cartilage. Acta Med Okayama 70(6):441448, Narazaki S, Furumatsu T, Tanaka T, Fujii M, Miyazawa S, Inoue H et al (2015) Postoperative change in the length and extrusion of the medial meniscus after anterior cruciate ligament reconstruction. Management of the MPRT consists of nonoperative treatment, partial meniscectomy and root repair, and primarily aims to prevent the development of OA [58]. Unable to process the form. This thinner cartilage can tear more easily. https://doi.org/10.1155/2015/210972, Kijima H, Miyakoshi N, Kasukawa Y, Ishikawa Y, Kinoshita H, Ohuchi K et al (2017) Cut-off value of medial meniscal extrusion for knee pain. Am J Sports Med 47(4):815821, Son DW, Bin SI, Kim JM, Lee BS, Lee CR, Park JG et al (2021) Extrusions do not affect degenerative morphologic changes in lateral meniscus allografts during midterm follow-ups. Tears in this area are typically more likely to heal on their own. [39,40,41]. Feel like your knee locks up or might give way underneath you.