Abstract
Meniscal root tears are defined as radial tears located within 1 cm from the meniscal attachment or a bony root avulsion. This injury is biomechanically comparable to a total meniscectomy, leading to compromised hoop stresses resulting in decreased tibiofemoral contact area and increased contact pressures in the involved compartment. These changes are detrimental to the articular cartilage and ultimately lead to the development of early osteoarthritis. Surgical repair is the treatment of choice in patients without significant osteoarthritis (Outerbridge grades 3 or 4). Root repairs have been reported to improve clinical outcomes, decrease meniscal extrusion and slow the onset of degenerative changes. In this article, we describe the anatomy, biomechanics, clinical evaluation, treatment methods, outcomes, and post-operative rehabilitation for posterior meniscal root tears.
Highlights
Meniscal root tears are defined as bony or soft tissue root avulsion injuries or radial tears within 1 cm of meniscus root attachment [1,2,3,4]
These tears are increasingly being recognized as a cause of morbidity, development of early osteoarthritis (OA), and altered joint kinematics when not surgically repaired [3, 5,6,7,8,9]
Lateral meniscus posterior root tears (LPRT) were 10.3 times more likely to occur with an anterior cruciate ligament (ACL) tear than medial meniscus posterior root tears (MPRT), which were 5.8 times more likely to have concomitant knee chondral defects than lateral meniscus posterior root tears (LPRT) [11]
Summary
Zazirnyi I.M.1, Kostrub O.O.2, Smigielski R.3, Andreev A.4 1Clinical Hospital “Feofaniya” of the Agency of State Affairs, Kyiv, Ukraine 2SI “Institute of Traumatology and Orthopedics of NAMS of Ukraine”, Kyiv, Ukraine. Meniscal root tears are defined as radial tears located within 1 cm from the meniscal attachment or a bony root avulsion This injury is biomechanically comparable to a total meniscectomy, leading to compromised hoop stresses resulting in decreased tibiofemoral contact area and increased contact pressures in the involved compartment. These changes are detrimental to the articular cartilage and lead to the development of early osteoarthritis. Root repairs have been reported to improve clinical outcomes, decrease meniscal extrusion and slow the onset of degenerative changes. We describe the anatomy, biomechanics, clinical evaluation, treatment methods, outcomes, and post-operative rehabilitation for posterior meniscal root tears
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