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Meniscal Root tear

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https://www.readbyqxmd.com/read/29653240/medial-meniscus-posterior-root-tear-induces-pathological-posterior-extrusion-of-the-meniscus-in-the-knee-flexed-position-an-open-magnetic-resonance-imaging-analysis
#1
S Masuda, T Furumatsu, Y Okazaki, Y Kodama, T Hino, Y Kamatsuki, S Miyazawa, T Ozaki
BACKGROUND: A medial meniscus posterior root tear (MMPRT) is defined as an injury to the posterior meniscal insertion on the tibia. In MMPRT, the medial meniscus (MM) hoop function is damaged, and the MM undergoes a medial extrusion into the interior from the superior articular surface of the tibia. However, the details of MM position and movement during knee joint movement are unclear in MMPRT cases. The present study aims to evaluate MM position and movement via magnetic resonance imaging (MRI) examination of the MM posterior extrusion (MMPE) at knee flexion angles of 10° and 90°...
April 10, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29622245/editorial-commentary-we-know-we-need-to-fix-knee-meniscal-radial-root-tears-but-how-best-to-perform-the-repairs
#2
EDITORIAL
Robert F LaPrade
The present work further contributes to building the base of the research pyramid by noting the importance of repairing knee meniscal radial root tears. Because of the extensive biomechanical studies that have now been published on the restoration of joint mechanics and with what I believe results in a higher likelihood of an improved healing environment with securing the meniscus root tear down to bone, I would strongly recommend that when one does see a meniscus root tear that the transtibial pullout root repair technique be considered over a side-to-side repair...
April 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29600679/-diagnostic-value-of-mri-for-posterior-root-tear-of-medial-and-lateral-meniscus
#3
Yue-Nan Qian, Fang Liu, Yi-Long Dong, Chun-Yuan Cai
OBJECTIVE: To explore diagnostic value of MRI on posterior root tear of medial and lateral meniscus. METHODS: From January 2012 to January 2016, clinical data of 43 patients with meniscal posterior root tear confirmed by arthroscopy were retrospective analyzed, including 25 males and 18 females, aged from 27 to 69 years old with an average age of(42.5±8.3)years old;27 cases on the right side and 16 cases on the left side. MRI examinations of 43 patients with tear of posterior meniscus root confirmed by knee arthroscopies were retrospectively reviewed...
March 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29574455/meniscal-root-tears-a-silent-epidemic
#4
Mark E Cinque, Jorge Chahla, Gilbert Moatshe, Scott C Faucett, Aaron J Krych, Robert F LaPrade
No abstract text is available yet for this article.
March 24, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29564055/medial-meniscal-root-repair-using-curved-guide-and-soft-suture-anchor
#5
Su-Keon Lee, Bong-Seok Yang, Byeong-Mun Park, Ji-Ung Yeom, Ji-Hyeon Kim, Jeong-Seok Yu
Medial meniscal root tears have been repaired using various methods. Arthroscopic all-inside repair using a suture anchor is one of the popular methods. However, insertion of the suture anchor into the proper position at the posterior root of the medial meniscus is technically difficult. Some methods have been reported to facilitate suture anchor insertion through a high posteromedial portal, a posterior trans-septal portal, or a medial quadriceptal portal. Nevertheless, many surgeons still have difficulty during anchor insertion...
March 2018: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/29552463/bone-trough-lateral-meniscal-allograft-transplantation-the-tapered-teardrop-technique
#6
Michael A Zacchilli, Amos Z Dai, Eric J Strauss, Laith M Jazrawi, Robert J Meislin
The meniscus plays a vital role in knee biomechanics, and its physical absence or functional incompetence (e.g., irreparable root or radial tear) leads to unacceptably high rates of joint degeneration in affected populations. Meniscal allograft transplantation has been used successfully to treat patients with postmeniscectomy syndrome, and there is early laboratory and radiographic evidence hinting at a potential prophylactic role in preventing joint degeneration. We present a technique for lateral meniscal allograft transplantation using the CONMED Meniscal Allograft Transplantation system...
December 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29537952/meniscal-root-tears-evaluation-and-management
#7
Michael Day, Michael Ryan, Eric Strauss
The management of meniscal root injuries has changed as biomechanical studies have demonstrated the importance of meniscal integrity in load distribution across the knee joint. Meniscal injury causes altered joint mechanics, which is postulated to be related to the onset of arthrosis. Arthroscopic meniscal root repair has been shown to restore more normal joint mechanics and is considered a treatment option in the appropriately indicated patient. Short- and midterm clinical results of meniscal root repair are promising, but long-term results are yet to be established...
March 2018: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/29482302/clinical-and-radiological-results-with-second-look-arthroscopic-findings-after-open-wedge-high-tibial-osteotomy-without-arthroscopic-procedures-for-medial-meniscal-root-tears
#8
Hyun Il Lee, Dongjun Park, Jinho Cho
Purpose: To identify the structural integrity of the healing site after medial open wedge high tibial osteotomy (MOWHTO) in patients with a posterior root tear of the medial meniscus (PRTMM) and chondral lesion by second-look arthroscopy and to determine the clinical and radiological findings. Materials and Methods: From August 2010 to June 2016, 52 consecutive patients underwent MOWHTO and arthroscopic examination without a chondral resurfacing procedure and meniscal treatment for PRTMM...
March 1, 2018: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29430715/characterization-and-comparison-of-rat-monosodium-iodoacetate-and-medial-meniscal-tear-models-of-osteoarthritic-pain
#9
Jill-Desiree Brederson, Katharine L Chu, Jun Xu, Arthur L Nikkel, Stella Markosyan, Michael F Jarvis, Rebecca Edelmayer, Robert S Bitner, Steve McGaraughty
Osteoarthritis (OA) is a degenerative form of arthritis that can result in loss of joint function and chronic pain. The pathological pain state that develops with OA disease involves plastic changes in the peripheral and central nervous systems, however, the cellular mechanisms underlying OA are not fully understood. We characterized the medial meniscal tear (MMT) surgical model and the intra-articular injection of monosodium iodoacetate (MIA) chemical model of OA in rats. Both models produced histological changes in the knee joint and associated bones consistent with OA pathology...
February 11, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29430489/posterior-cruciate-ligament-current-concepts-review
#10
REVIEW
Santiago Pache, Zachary S Aman, Mitchell Kennedy, Gilberto Yoshinobu Nakama, Gilbert Moatshe, Connor Ziegler, Robert F LaPrade
The posterior cruciate ligament (PCL) is the largest and strongest ligament in the human knee, and the primary posterior stabilizer. Recent anatomy and biomechanical studies have provided an improved understanding of PCL function. PCL injuries are typically combined with other ligamentous, meniscal and chondral injuries. Stress radiography has become an important and validated objective measure in surgical decision making and post-operative assessment. Isolated grade I or II PCL injuries can usually be treated non-operatively...
January 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29430394/both-posterior-root-lateral-medial-meniscus-tears-with-anterior-cruciate-ligament-rupture-the-step-by-step-systematic-arthroscopic-repair-technique
#11
Bancha Chernchujit, Renaldi Prasetia
The occurrence of posterior root tear of both the lateral and medial menisci, combined with anterior cruciate ligament rupture, is rare. Problems may be encountered such as the difficulty to access the medial meniscal root tear, the confusing circumstances about which structure to repair first, and the possibility of the tunnel for each repair to become taut inside the tibial bone. We present the arthroscopy technique step by step to overcome the difficulties in an efficient and time-preserving manner.
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29380495/characterizing-the-distinct-structural-changes-associated-with-self-reported-knee-injury-among-individuals-with-incident-knee-osteoarthritis-data-from-the-osteoarthritis-initiative
#12
Julie E Davis, Matthew S Harkey, Robert J Ward, James W MacKay, Bing Lu, Lori Lyn Price, Charles B Eaton, Mary F Barbe, Grace H Lo, Timothy E McAlindon, Jeffrey B Driban
PURPOSE: We aimed to characterize the agreement between distinct structural changes on magnetic resonance (MR) imaging and self-reported injury in the 12 months leading to incident common or accelerated knee osteoarthritis (KOA). MATERIALS AND METHODS: We conducted a descriptive study using data from baseline and the first 4 annual visits of the Osteoarthritis Initiative. Knees had no radiographic KOA at baseline (Kellgren-Lawrence [KL]<2). We classified 2 groups: 1) accelerated KOA: a knee developed advanced-stage KOA (KL=3 or 4) within 48 months and 2) common KOA: a knee increased in radiographic severity (excluding those with accelerated KOA)...
January 30, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29369416/complete-tear-of-the-lateral-meniscus-posterior-root-is-associated-with-meniscal-extrusion-in-anterior-cruciate-ligament-deficient-knees
#13
Yusuke Kamatsuki, Takayuki Furumatsu, Masataka Fujii, Yuya Kodama, Shinichi Miyazawa, Tomohito Hino, Toshifumi Ozaki
This study aimed to evaluate the relationship between preoperative lateral meniscal extrusion (LME) and arthroscopic findings of lateral meniscus posterior root tear (LMPRT) in knees with anterior cruciate ligament (ACL) tear. Thirty-five knees that had LMPRTs with concomitant ACL tears on arthroscopy were evaluated. Patients were divided into two groups, partial and complete root tears, via arthroscopic findings at the time of ACL reconstruction. For comparison, we added two groups, using the same database; 20 normal knees (normal group) and 20 ACL-injured knees without LM injury (intact LM group)...
January 25, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29354453/arthroscopic-medial-meniscus-posterior-root-reconstruction-using-auto-gracilis-tendon
#14
Dhong Won Lee, Russel Haque, Kyu Sung Chung, Jin Goo Kim
There have been several techniques to repair the medial meniscus posterior root tears (MMPRTs) with the goal of restoring the anatomic and firm fixation of the meniscal root to bone. Many anatomic studies about the menisci also have been developed, so a better understanding of the anatomy could help surgeons perform correct fixation of the MMPRTs. The meniscal roots have ligament-like structures that firmly attach the menisci to the tibial plateau, and this structural concept is important to restore normal biomechanics after anatomic root repair...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29202561/meniscal-extrusion-as-booster-of-osteoarthritis
#15
R Papalia, G Papalia, F Russo, L A Diaz, F Bressi, S Sterzi, V Denaro
Meniscal extrusion (ME) has shown to play a critical but still unclear role in osteoarthritis (OA) development. ME has been described as an important risk factor in the progression of knee OA, as it is involved in the thinning of articular cartilage, joint space narrowing, spontaneous osteonecrosis of the knee and subchondral bone marrow lesions. Meniscal damage of any degree of severity could cause ME in both compartments, but it is commonly associated with severe meniscal tears or root tears mainly in the medial meniscus...
December 27, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29172390/meniscal-extrusion-progresses-shortly-after-the-medial-meniscus-posterior-root-tear
#16
Takayuki Furumatsu, Yuya Kodama, Yusuke Kamatsuki, Tomohito Hino, Yoshiki Okazaki, Toshifumi Ozaki
Purpose: Medial meniscus posterior root tears (MMPRT) induce medial meniscus extrusion (MME). However, the time-dependent extent of MME in patients suffering from the MMPRT remains unclear. This study evaluated the extent of MME after painful popping events that occurred at the onset of the MMPRT. Materials and Methods: Thirty-five patients who had an episode of posteromedial painful popping were investigated. All the patients were diagnosed as having an MMPRT by magnetic resonance imaging (MRI) within 12 months after painful popping...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29020692/erratum-arthritis-progression-on-serial-mris-following-diagnosis-of-medial-meniscal-posterior-horn-root-tear
#17
Aaron J Krych, Nick R Johnson, Rohith Mohan, Mario Hevesi, Michael J Stuart, Laurel A Littrell, Mark S Collins
No abstract text is available yet for this article.
October 11, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28950387/arthritis-progression-on-serial-mris-following-diagnosis-of-medial-meniscal-posterior-horn-root-tear
#18
Aaron J Krych, Nick R Johnson, Rohith Mohan, Mario Hevesi, Michael J Stuart, Laurel A Littrell, Mark S Collin
No abstract text is available yet for this article.
September 26, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28873348/management-of-traumatic-meniscal-tear-and-degenerative-meniscal-lesions-save-the-meniscus
#19
REVIEW
P Beaufils, N Pujol
Meniscectomy remains one of the most frequent orthopedic procedures, despite meniscal sparing having been advocated for several decades now. Incidence is excessive in the light of scientifically robust studies demonstrating the interest of meniscal repair or of nonoperative treatment for traumatic tear and of nonoperative treatment for degenerative meniscal lesions. It is high time that the paradigm shifted, in favor of meniscal preservation. In traumatic tear, and most particularly longitudinal vertical tear in vascularized zones, repair shows a high success rates in terms of recovery time, functional outcome and cartilage protection...
December 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28852346/medial-meniscus-root-tear-in-the-middle-aged-patient-a-case-based-review
#20
Joseph H Carreau, Sean E Sitton, Matthew Bollier
Biomechanical studies have shown that medial meniscal root tears result in meniscal extrusion and increased tibiofemoral joint contact pressures, which can accelerate the progression of arthritis. Repair is generally recommended for acute injuries in the young, active patient population. The far more common presentation however, is a subacute root tear with medial meniscal extrusion in a middle aged patient. Coexisting arthritis is common in this population and complicates decision making. Treatment should be based on the severity of the underlying arthritis...
2017: Iowa Orthopaedic Journal
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