J Fam Pract 2001;50:93844. Note: the cartilage deficit more anteriorly on the medial femoral condyle and altered subchondral cortical bone interface, Figure 5. If the tear is associated with arthritis it will typically improve over time as the arthritis is treated. Verdonk PC, Demurie A, Almqvist KF, Veys EM, Verbruggen G, Verdonk R. Transplantation of viable meniscal allograft. Radial tears, because they are oriented perpendicular to the c-shaped fibers of the meniscus, have a devastating effect upon meniscal function. Jarit G, Bosco J. Meniscal repair and reconstruction. In (17a), the preoperative study, a large displaced "handle" (arrow) from the body of the lateral meniscus is seen near the intercondylar notch. Complex or degenerative tears are where two or more tear patterns exist. X-rays and MRIsallow the doctor to evaluate the bone and soft tissue at the knee. 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. It is important to describe your symptoms accurately. Trauma to medial collateral ligament usually also involves medial meniscus. Acta Orthop Scand 1982;53:9759. This technique allows for anatomic reduction and fixation of the meniscal root by restoring the joint contact pressure and area similar to the intact state. 1 article features images from this case Extrusion of the medial meniscus (MM) is associated with knee joint pain in osteoarthritic knees. Meniscal pain occurs during torsional, weight bearing knee movements (classically pivoting on the knee while walking) as a sharp stab lasting several seconds, often followed by a dull ache for several hours. 2023 Cedars-Sinai. A meniscal tear can heal on its own, but location is important. Sources: Jul 2000;31(3):419-36. Tears are noted by how they look, as well as where the tear occurs in the meniscus. Lists risks and benefits of surgery for meniscus tear. The one towards the back of leg is the posterior horn. Treatment varies on a case-by-case basis. It has been shown the peak tibiofemoral contact pressure after a total meniscectomy is equal to a posterior medial meniscal root tear. This means that athletes, especially those who participate in contact sports like football, are at a higher risk of sustaining this injury. 9 Lecase LK, Helms CA, Kosarek FJ, Garret WE. Patients with ACL tears are also thought to be better candidates for meniscal repair because of the presence of serum-derived growth factors within the hemarthrosis that accompanies ACL tears.15. It is generally divided into 3 separate portions, the anterior horn, the mid-body and the posterior horn. Referral is also indicated if the diagnosis is uncertain for review and to access MRI. If the test is positive (suggesting a meniscal tear), the patient will feel pain and the clinician will feel and/or hear meniscal movement when the meniscus is compressed between the tibia and femur 32, Figure 2. Each knee has two C-shaped pieces of cartilage known as menisci. Peripheral meniscal tears are among the most common causes of meniscal pathology, particularly occurring in conjunction with anterior cruciate ligament (ACL) injury or deficiency. 12 McGinty JB, Burkhart SS, Jackson RW, et al. This opening pushes the inside edge of your meniscus toward the middle of your knee. (9a) This irregular tibial surface tear (arrow) clearly lies within the peripheral, red zone, of the meniscus. Sagittal peripheral meniscal images demonstrate the normal anatomical 'bow-tie configuration' (the central meniscal body with the anterior and posterior horns as well circumscribed triangles. A prospective study of the nonoperative treatment of degenerative meniscus tears. Doctors typically provide answers within 24 hours. This leads to decreased contact area and increased contact pressure and ultimately results in joint overloading and degenerative changes in the knee similar to a total meniscectomy state. Reactive synovitis and edema (arrowheads) are readily apparent deep to the tibial collateral ligament on the coronal view. History, clinical findings, magnetic resonance imaging, and arthroscopic correlation in meniscal lesions. McMurray test: The patient lies supine on the bed with the hip and knee both flexed. If an ACL tear is also present, meniscal repairs are more successful if the ACL is also repaired, likely due to the protection afforded by knee stability. RICE stands for Rest, Ice, Compression, and Elevation. Any tears appear as white lines. Matthew H. Blake, MD, can be reached at the Kentucky Clinic, 740 Limestone, Suite K415, Lexington, KY 40536; email: Darren L. Johnson, MD, can be reached at the Kentucky Clinic, 740 S Limestone, Suite K415, Lexington, KY 40536; email: Jorge Chahla, MD; Andrew G. Geeslin, MD; and Robert F. LaPrade, MD, PhD, can be reached at Steadman Philippon Research Institute, The Steadman Clinic, 181 West Meadow Dr., Suite 400, Vail, CO 81657; Chahlas email. 5 Jee WH, McCauley TR, Kim JM, et al. This is one of the first muscles to atrophy post knee immobilization Question options: is lis oblique is lis medius In rehabilitating an ACL, . In the early days of MR, it was often felt that the role of MR was simply to identify whether a tear was present or not, and treatment of meniscal tears was largely composed of operative resection. Knee pain: Depending on your duration of symptoms you can at least start off with physical therapy, a knee sleeve, and if there is arthritis present consider a c Read More oblique tear of the posterior horn and body of the medial meniscus involving inferior articular surface and peripheral meniscal margin. In many areas, nonessential orthopaedic procedures that were postponed due to COVID-19 have resumed. Orthopedics 2009;32:8. Clin J Sport Med 2009;19:912. swelling - this usually happens several hours after you injure your meniscus. Makris EA, Hadidi P, Athanasiou KA. (5a) A longitudinal tear of the posterior horn of the medial meniscus is illustrated. The relationships among MM radial/oblique tears, MM extrusion (MME), and the effect of arthroscopic meniscal repair are not established. Br Med Bull 2011;2011:89106. Rimington T, Mallik K, Evans D, Mroczek K, Reider B. Posterior medial meniscal root tears are often times degenerative, but these can also occur with multi-ligament knee injuries in the acute setting. Submission to the Department of Health and Ageing. If you've torn your meniscus, it might take 24 hours or more for pain and swelling to begin, especially if the tear is small. If your symptoms persist with nonsurgical treatment, your doctor may suggest arthroscopic surgery. Incisions were made in the dorsal root of the oblique popliteal ligament and the joint capsule . London;1897. Imaging tests X-rays. They will manipulate your leg into various positions, observe you while you walk, and bend at the knee. 2. Sounds like it will not get better without arthroscopic surgery. Primary repair of medial meniscal avulsions: 2 case studies. Meniscal tears may be categorized into five common configurations, including horizontal, longitudinal, radial, oblique (parrot-beak), and complex.5 Horizontal tears, the most common meniscal tear pattern, lie parallel to the tibial plateau and separate the meniscus into upper and lower parts (4a,4b). Your doctor may inject a corticosteroid medication into your knee joint to help eliminate pain and swelling. The operative equipment needs and post-operative rehabilitation process markedly differ between meniscal repair and partial meniscectomy. If you have a meniscus tear, this movement may cause pain, clicking, or a clunking sensation within the joint. Meniscus tears are among the most common knee injuries. Meniscal tears are categorised as traumatic or non-traumatic (degenerative) on the basis . from the American Academy of Orthopaedic Surgeons, Questions and Answers for Patients Regarding Elective Surgery and COVID-19. The double posterior cruciate ligament (PCL) sign appears on sagittal MRI images of the knee when a bucket-handle meniscal tear (medial meniscus in 80% of cases) flips towards the center of the joint so that it comes to lie anteroinferior to the posterior cruciate ligament (PCL) mimicking a second smaller ligament.. A double posterior cruciate ligament sign from a torn medial meniscus can . Indications for meniscal root repair are acute, traumatic root tears in patients with nearly normal or normal cartilage (Outerbridge grade 0 to 2) and chronic symptomatic root tears in active patients without significant pre-existing osteoarthritis (OA). Arthroscopy 2010;26:13689. This tear is usually best seen on the coronal T2-weighted MRI scan (see figure 1), where a fragment of meniscus (black in appearance) is stuck between the medial tibial plateau and the overlying medial collateral ligament.This tear pattern tends to be persistently painful, as the meniscal fragment becomes entrapped between bone and the adjacent soft tissues. Meniscal tears are common sports-related injuries in young athletes and can also present as a degenerative condition in older patients. The meniscus can tear from acute trauma or as the result of degenerative changes that happen over time. You may be asked about your physical and athletic goals to help your doctor decide on the best treatment for you. Many meniscus tears will not need immediate surgery. Meniscus tears are either degenerative or acute. While visualization of the meniscal root may be difficult due to MRI slice size, type of MRI and strength of MRI, an extrusion larger than 3 mm highly correlates with a root tear. Skeletal Radiol 2007;36:14551. Your meniscus acts like a cushion between your thigh bone (femur) and shin bone (tibia). Symptomatic treatment with rest, ice, NSAIDs and/or an unloader brace may help alleviate symptoms in some cases. Your doctor might move your knee and leg into different positions, watch you walk, and ask you to squat to help pinpoint the cause of your signs and symptoms. Chronic tears may be scarred to the capsule and require release of the meniscocapsular junction to allow anatomic repair. We describe the technique of diagnosis and treatment of a large displaced lateral meniscus flap tear, presenting as a meniscus comma sign. Arthroscopy. The outer one-third of the meniscus has a rich blood supply. Tears that are stable, < 1 cm in length, and that do not cause significant . Because a torn meniscus is made of cartilage, it won't show up on X-rays. Clin Orthop Related Res 2010;468:11902. The Thessaly test for detection of meniscal tears: validation of a new physical examination technique for primary care medicine. Ercin E, Kaya I, Sungur I, Demirbas E, Ugras AA, Cetinus EM. Usually you will be able to leave the hospital the same day. Operative Arthroscopy, 3rd Edition, 2002, Lippincott Williams and Wilkins. Recent kinematic/biomechanical studies have also shown the importance of the medial meniscus to anterior translation of the knee. 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. These are the menisci. Fat-suppressed proton density-weighted (4a) sagittal and (4b) coronal images reveal a horizontal tear of the posterior horn of the medial meniscus (arrows), extending to the tibial surface. In some cases, a meniscal repair may also be possible, though this is dependent on the size and location of the tear. This is because this area has rich blood supply and blood cells can regenerate meniscus tissue or help it heal after surgical repair. Although surgical repair has led to improved patient-reported function, there are conflicting reports on the progression of cartilage degeneration. tears of the medial meniscus were the most common type oftear,comprising40%ofmedialmeniscustears.Further-more, more than 75% of medial meniscal tears in the ACL- . 2010. Fat-suppressed coronal images demonstrate before and after images following repair of a bucket handle tear. what is the treatment for that? Perhaps the best know of these is the bucket-handle tear. This extrusion should disappear without stress. We believe that by repairing these tears, the degenerative process may be delayed or halted (Figure 6). Brain Res Rev 2009;60:187201. Seldom are they the sign of a problem. In brief: meniscal tears. Tears present as severe pain, swelling, and possibly catching, clicking, difficulty on deep knee bending and locking of the knee in partial flexion. 1993;9(1):33-51. This most often happens when the tear develops over a period of time. However, it may also occur in older athletes through gradual degeneration. w/severe pain? The healing time in children is a little less as the healing process is faster in children than in adults. Meniscus tears are injuries that occur in the cartilage of the knee. This puts tension on a torn meniscus. It is therefore quite important in treatment planning for the pre-operative MR to provide information that can be used to determine whether meniscal repair rather than partial meniscectomy is to be performed. Explains two kinds of surgery. Seldom are they the sign of a problem. Immediate conservative measures include the RICE regimen: Longer term measures include activity modification, nonsteroidal antiinflammatory drugs (NSAIDs) and physiotherapy.4,1921 Nonsteroidal anti-inflammatory drugs are often recommended for 812 weeks,20 although paracetamol can be considered if NSAIDs are contraindicated or poorly tolerated.22 Where available, intensive physiotherapy is very useful and should include range of motion, proprioceptive work and muscle strengthening exercises. growth factors) on meniscus tissue is being investigated.2 These are currently only being trialled in younger patients7 and the routine use of most of these technologies is some time away. Bove SE, Flatters SJ, Inglis JJ, Mantyh PW. Medial meniscal root tears are more frequently diagnosed in patients who are older than 40 years, are overweight and cannot recall an inciting event. Video chat with a U.S. board-certified doctor 24/7 in less than one minute for common issues such as: colds and coughs, stomach symptoms, bladder infections, rashes, and more. About OrthoInfoEditorial Board Our ContributorsOur Subspecialty Partners Contact Us, Privacy PolicyTerms & Conditions Linking Policy AAOS Newsroom Find an FAAOS Surgeon. Repair of such lesions can result in dramatic clinical as well as MR imaging results (17a,17b). Cole BJ, Dennis MG, Lee SJ, et al. Types of meniscus tears:(Left) Bucket handle tear. The medial meniscus has a firmer capsular attachment than the lateral meniscus. It has been reported that the force experienced by the medial meniscus in the ACL-deficient knee increased by 52% in full extension and by 197% at 60 of flexion under a 134-N load. The meniscus is broken down into the outer, middle, and inner thirds. Requests for permission to reprint articles must be sent to permissions@racgp.org.au. Because of their importance and the clinical impact of meniscal tears, assessment of the menisci has become the most common indication for MR of the knee. Gillquist J, Hamberg P, Lysholm J. Endoscopic partial and total meniscectomy. Coronal proton weighted MRI of horizontal tear of lateral meniscus (white arrow) with complicating ganglion (black arrow) at the lateral margin of the meniscus, Australian Family Physician was the peer-reviewed, scholarly journal of The Royal Australian College of General Practitioners (RACGP) from 1971 to 2017. The most common symptom of a torn meniscus is localized pain in the knee that worsens when rotating the leg. When a meniscus tear occurs, you may hear a popping sound around your knee joint. New advances in musculoskeletal pain. Rehabilitation of the knee following sports injury. A magnetic resonance imaging (MRI) scan is often used to diagnose meniscal injuries. At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Conservative management of the patient with a meniscal tear. a feeling that your knee is catching or locking, usually when it's bent - you may notice it clicking. X-rays provide images of dense structures, such as bone. A meniscus tear can occur when the knee is suddenly twisted while the foot is planted on the ground. It is important that these root avulsions are anatomically repaired back to the bone. Arthroscopy 2006;22:77180. The anterior horn of the medial meniscus demonstrates half of the normal anatomic 'bow-tie configuration'. Semin Roentgenol. Knees with a deficient medial meniscus and an ACL tear have an increased anterior tibial translation of about 60% at 90 of flexion. Historically, medial meniscal root tears have been treated conservatively or by partial meniscectomy. Description of Medial Meniscus Tear The medial meniscus is an important shock absorber on the inside (medial) aspect of the knee joint. Am J Sports Med 2006;34:91927. De Carlo M, Armstrong B. Meniscal tears within the body of the meniscus or at the meniscocapsular junction represent a well-understood and manageable condition encountered in clinical practice. AJR Am J Roentgenol 1998;170:5761. In sports, a meniscus tear usually happens suddenly. Research is currently investigating the possibility of implantation of collagen, allogenic and xenogenic cells, embryonic and adult stem cells, or scaffolds derived from polymers, hydrogels, tissues and extracellular matrix,7 and action of biological stimuli (eg. Meniscal tear incidence may be as high as six per 1000 population6 with a 2.5 to 4 times male predominance. Meniscal tears may be categorized into five common configurations, including horizontal, longitudinal, radial, oblique (parrot-beak), and complex. A meniscus tear is an injury to one of the bands of rubbery cartilage that act as shock absorbers for the knee. MR is also able to assess the stability of meniscal tears,6 an important factor, as unstable tears require operative treatment for symptom relief. Longitudinal tears do not disrupt the circumferential architecture of the meniscus, and thus repair of longitudinal tears leads to a meniscus with relatively normal biomechanical function. The McMurray test (shown here) will help your doctor determine if you have a meniscus tear. Diagnosis can be suspected clinically with joint line tenderness and a positive Mcmurray's test, and can be confirmed with MRI studies. (Left) Radial tear. Non-operative treatment of degenerative posterior root tear of the medial meniscus. Know why a test or procedure is recommended and what the results could mean. New surgical advances allow surgeons to repair these tears. The meniscus comma sign has been described for displaced flap tears of the meniscus. Case Discussion Longitudinal tears, also known as vertical tears, occur perpendicular to the tibial plateau and parallel to the long axis of the meniscus splitting the meniscus into inner and outer parts. J Bone Joint Surg Am 1988;70:120917. As people age, they are more likely to have degenerative meniscus tears. See your ortho for an evaluation. American Board of Orthopaedic Surgery Practice of the Orthopaedic Surgeon: Part-II, certification examination case mix. Evaluate the TCO of your PACS download >, 750 Old Hickory Blvd, Suite 1-260Brentwood, TN 37027, Focus on Musculoskeletal and Neurological MRI, The Anterior Meniscofemoral Ligament of the Medial Meniscus, Collateral Ligament Injuries of the Fingers. The primary objective is to control the disease process to avoid the complications . Know how you can contact your provider if you have questions. Arthroscopy 1998;14:8249. Symptoms. Have swelling, stiffness or tightness in your knee. Referral to an orthopaedic surgeon is important if the diagnosis is uncertain or there is minimal improvement at clinical review. The goal of meniscal root repair is to restore the joint to a near native function of the meniscus and prevent cartilage degradation associated with nonsurgical treatment or meniscectomy. They act as shock absorbers and stabilize the knee. Meniscal repair surgeries do the best when the meniscal tear extends into the middle 50% of meniscal substance. If your meniscus tear is not severe, your doctor will likely recommend the following treatment: If you have a meniscus tear, physical therapy can help to strengthen the muscles around the knee as well the muscles in your legs which in turn will stabilize and support the knee. Vincken PW, ter Braak AP, van Erkel AR, et al. Pain may wake the patient from sleep as the tender medial aspect of the knee strikes the other side as the patient rolls over in bed. Horizontal cleavage, oblique, and complex meniscal tear patterns have traditionally been poor candidates for meniscal repair. Oblique tears commonly cause flaps and flaps are generally not good. Only a small peripheral rim of meniscal tissue (arrowhead) is present at the native site of the lateral meniscus. Successful outcome and patient satisfaction after medial meniscal root repair are established initially upon appropriate diagnosis and patient selection. However, coronal sections may reveal the presence of meniscal extrusion or vertical defects, and sagittal sections may reveal the ghost sign (absence of an identifiable meniscus or increased signal replacing the normal hypointense signal of meniscal tissue). Meniscal tear configurations: categorization with MR imaging. Both of them have 2 causes. The posterior horn it the back portion of the menisci at the end of the curve, where it tapers . 12 Sources By Jonathan Cluett, MD Am J Sports Med 2004;32:67580. Nourissat G, Beaufils P, Charrois O, et al. AJR 1998;170:63-67. A horizontal meniscus tear runs along the circumference of the fibers of the meniscus. Although all bucket handle tears are repair candidates,16 the bucket handle tear is an example of when the more severe appearing tear is actually better for the patient. For patients requiring meniscectomy, meniscal autograft has been utilised with good outcomes,2931 but is only performed in specialist centres. Locking presents in two ways. Additional pain may be felt when flexing or twisting the knee. The menisci act as cushions between your shin bone (tibia) and your thigh bone (femur). One or two other small incisions are made for inserting instruments. Radial Tear B. Horizontal Tear C. Vertical Tear D. Longitudinal Tear E. Oblique Tear. However, these patients are rare. An MRI scan assesses the soft tissues in your knee joint, including the menisci, cartilage, tendons, and ligaments. The knee: a comprehensive review. Singapore: World scientific, 2010. A meniscus can be split in half, ripped around its circumference in the shape of a C or left hanging by a thread to the knee joint. Pathology - a tear that has developed gradually in the meniscus. This information is not intended as a substitute for professional medical care. 14 Marzo JM, Kumar BA. If you have a meniscus tear, this movement may cause pain, clicking, or a clunking sensation within the joint. Nonoperative treatments are an important part of the management of all patients, regardless of whether surgery is being considered. Can a torn meniscus heal by itself? Radiographs may or may not show medial joint space narrowing. Know what to expect if you do not take the medicine or have the test or procedure. Of note, drilling tibial tunnels may improve healing of the meniscus-bone interface due to the presence of progenitor cells and growth factors derived from the bone marrow. A longitudinal tear is an example of this kind of tear. For potential or actual medical emergencies, immediately call 911 or your local emergency service. Meniscus tears simply do not heal on their own, regardless of conservative treatment. M23.322 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Clinical results of meniscus repair in patients 40 years and older. The joint is fairly flexible only the last 10-15 degrees is painful, but the pain on walking constant and vulnerable to . There are numerous types of meniscus tears, including: 1. The body usually absorbs these over time. The preferred nomenclature for this tear pattern is: A gradient-echo T2*-weighted sagittal image, A. Nicholas Colyvas, MDClinical ProfessorDepartment of Orthopaedic Surgeryorthosurg.ucsf.edu A comparative study with a short term follow up. Flaps cause mechanical instability - meaning they interrupt the smooth function of the knee joint and will make your knee joint feel unstable. Sports-related meniscus injuries often occur along with other knee injuries, such as anterior cruciate ligament (ACL) tears. 15 Koski JA, Ibarra C, Rodeo SA. The healing of an Oblique Fracture can take a minimum of four to six weeks to completely heal. Vertical flap (oblique, flap, parrot's beak) tears are unstable tears and occur in younger patients. This tear pattern was historically unrecognized, although more recently it has been suggested this hidden pathology may account for nearly 80% of the total knee replacements in patients younger than 60 years. Magnetic resonance imaging as a tool to predict reparability of longitudinal full-thickness meniscus lesions. A gradient-echo T2*-weighted sagittal image demonstrates a tear within the posterior horn of the medial meniscus (arrow). 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). How can I tell if I have an oblique fracture? Weakness, grinding, instability or giving way rarely result from meniscal pathology. Surgical treatment is usually reserved for younger patients with a vertical longitudinal tear within the vascularised outer third of the meniscus. OKeefe R, et al. Radiology 2000; 217:193-200. Several variations in meniscal tear patterns have been granted specific names that recognize the unique characteristics of the tear. 10 DeHaven KE. Flaps cause mechanical instability - meaning they interrupt the smooth function of the knee joint and will make your knee joint feel unstable. Athletes, particularly those who play contact sports, are at risk for meniscus tears. Magnetic resonance imaging of the knee menisci. For these, please consult a doctor (virtually or in person). 7 Yao L, Stanczak J, Boutin RD. If you have unusual pain and discomfort in your knee, let us help you get back to doing the things you love. The degenerative aetiology and reduced vascularisation secondary to ageing also means that meniscal tears in the elderly population are less likely to be amenable to surgical management;7 only about 6% of patients over 40 years of age have operable lesions.24 To prevent re-injury of the meniscus, activity modification is important for example, ceasing sports such as soccer or netball. Still, many people with a torn meniscus can walk, stand, sit, and sleep without pain. Sometimes these tears require surgical repair. Regular exercise to restore your knee mobility and strength is necessary. I have an oblique tear of the posterior horn of my medial meniscus that extends to the undersurface of the cartilage. The doctors at the Orthopaedic Associates of Central Maryland are here to repair your knee problems, hip pain, and arthritis issues so you can get back to enjoying life. This part of the tibia is also known as the tibial plateau. The lateral meniscus is on the outside of the knee. Helms CA, Laorr A, Cannon WD, Jr. Peripheral meniscal tears are located in the most vascular portion of the menisci and comprise 39-72 % [2, 3, 56, 69, 82] of all meniscal tears. AJSM 2002; 30:589-600. 13 Newman AP, Daniels AU, Burks RT. You can tear a meniscus during any activity which involves forcefully twisting or rotating the knee. The knee meniscus: structure-function, pathophysiology, current repair techniques, and prospects for regeneration. Medial meniscal root tears: Fix it or leave it alone Orthopedics Today | Medial and lateral menisci are crescent-shaped fibrocartilage structures that provide joint congruity, stabilization and. Pain and/or clicking on compression suggest a meniscal lesion 1,32, Figure 3. Meniscal ramp lesions can be defined as longitudinal vertical and/or oblique peripheral tears affecting posterior horn of medial meniscus, in a mediolateral direction of less than 2.0 cm, that may lead to meniscocapsular or meniscotibial disruption [ 1 ]. https://www.webmd.com/pain-management/knee-pain/meniscus-tear-injury The meniscus root attachment aids meniscal function by securing the meniscus in place and allowing for optimal shock-absorbi The Royal Australian College of General Practitioners. Knee Surg Sports Traumatol Arthrosc 2010;18:5359. Age of injury peaks at 2029 years.7 Partial meniscectomy (removal of the torn section) is one of the most commonly performed orthopaedic surgical procedures.8. Not the symmetrical shape of the lateral meniscus (red outline) and the asymmetry of the medial meniscus (blue outline), where the posterior horn (asterisk) is significantly larger than the anterior horn.
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