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Meniscal Root tear

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https://www.readbyqxmd.com/read/28534321/does-anatomic-single-bundle-acl-reconstruction-using-hamstring-autograft-produce-anterolateral-meniscal-root-tearing
#1
Sebastián Irarrázaval, Angel Masferrer-Pino, Maximiliano Ibañez, Tamer M A Shehata, María Naharro, Joan C Monllau
BACKGROUND: To determine if tibial tunnel reaming during anatomic single-bundle anterior cruciate ligament (ACL) reconstruction using hamstring autograft can result in anterolateral meniscal root injury, as diagnosed by magnetic resonance imaging (MRI). METHODS: A case series of 104 primary anatomic single-bundle ACL reconstructions using hamstring autograft was retrospectively reviewed. Pre- and post-operative (>1 year) MRIs were radiologically evaluated for each patient, with a lateral meniscus extrusion > 3 mm at the level of the medial collateral ligament midportion on a coronal MRI, to establish anterolateral meniscal root injury...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28508006/early-osteoarthritis-after-untreated-anterior-meniscal-root-tears-an-in-vivo-animal-study
#2
Brett D Steineman, Robert F LaPrade, Kelly S Santangelo, Brent T Warner, Laurie R Goodrich, Tammy L Haut Donahue
BACKGROUND: Meniscal root tears cause menisci and their insertions to inadequately distribute loads and potentially leave underlying articular cartilage unprotected. Untreated meniscal root tears are becoming increasingly recognized to induce joint degradation; however, little information is known about anterior meniscal root tears and how they affect joint tissue. PURPOSE: To observe the early degenerative changes within the synovial fluid, menisci, tibial articular cartilage, and subchondral bone after arthroscopic creation of untreated anterior meniscal root tears...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28425757/the-prevalence-and-characteristics-of-a-subcortical-cystic-lesion-at-the-subspinous-region-of-the-knee
#3
Ji Ye Son, Young Cheol Yoon, Wook Jin, Jang Gyu Cha
Background Although we observed that subcortical cysts near the attachment of the meniscus or cruciate ligaments are frequently seen with a tear or degeneration of the adjacent meniscus and/or cruciate ligament, there is no large study describing the prevalence, distribution, and associated findings of these cysts. Purpose To evaluate the prevalence and distribution of subcortical cysts near the attachments of the meniscus or cruciate ligaments and evaluate pathologies of the meniscus or cruciate ligaments using magnetic resonance imaging (MRI)...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28416188/a-giraffe-neck-sign-of-the-medial-meniscus-a-characteristic-finding-of-the-medial-meniscus-posterior-root-tear-on-magnetic-resonance-imaging
#4
Takayuki Furumatsu, Masataka Fujii, Yuya Kodama, Toshifumi Ozaki
BACKGROUND: The posterior root ligament of the medial meniscus (MM) has a critical role in regulating the MM movement. An accurate diagnosis of the MM posterior root tear (MMPRT) using magnetic resonance imaging (MRI) is important for preventing sequential osteoarthritis following the MMPRT. However, diagnosis of the MMPRT is relatively difficult even after using several characteristic MRI findings. The aim of this study was to identify a useful meniscal body sign of the MMPRT for improving diagnostic MRI reading...
April 13, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28409107/a-transosseous-bone-bridge-repair-for-posterior-horn-meniscal-root-tears-during-anterior-cruciate-ligament-reconstruction
#5
Jonathan M Frank, Daniel J Liechti, Jack Anavian, Thomas R Hackett
Meniscal root tears occur in isolation or concurrently with ligamentous knee injury and cause significantly altered knee mechanics with the loss of normal meniscus hoop stress. This loss of normal meniscus function can result in abnormal knee kinematics and, subsequently, more rapid degenerative changes of the knee articular surface. In the setting of anterior cruciate ligament tear, the posterolateral meniscus root is most commonly damaged. Several techniques exist for meniscus root repair; however, none have been shown to be clearly superior...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28298056/outcomes-after-biologically-augmented-isolated-meniscal-repair-with-marrow-venting-are-comparable-with-those-after-meniscal-repair-with-concomitant-anterior-cruciate-ligament-reconstruction
#6
Chase S Dean, Jorge Chahla, Lauren M Matheny, Justin J Mitchell, Robert F LaPrade
BACKGROUND: Meniscal repair in the setting of anterior cruciate ligament (ACL) reconstruction has demonstrated superior outcomes compared with isolated meniscal repair. Limited evidence exists for the effects of biological augmentation in isolated meniscal repair, particularly as compared with meniscal repair with concomitant ACL reconstruction. Purpose/Hypothesis: The purpose of this study was to compare the outcomes and survivorship of meniscal repair in 2 cohorts of patients: meniscal repair with biological augmentation using a marrow venting procedure (MVP) of the intercondylar notch, and meniscal repair with concomitant ACL reconstruction...
May 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28280904/complete-posterolateral-meniscal-root-tear-is-associated-with-high-grade-pivot-shift-phenomenon-in-noncontact-anterior-cruciate-ligament-injuries
#7
Guan-Yang Song, Hui Zhang, Xin Liu, Jin Zhang, Zhe Xue, Yi Qian, Hua Feng
PURPOSE: The purpose of this study was to investigate whether the complete posterolateral meniscal root tear (PLMRT) would be associated with high-grade pivot-shift phenomenon in noncontact anterior cruciate ligament (ACL) injuries. METHODS: From 2013 to 2015, a total of 1095 consecutive patients were diagnosed as having noncontact ACL injuries and underwent primary ACL reconstructions. Among them, 140 patients were arthroscopically verified to have concomitant PLMRTs...
April 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28184957/partial-meniscectomy-provides-no-benefit-for-symptomatic-degenerative-medial-meniscus-posterior-root-tears
#8
Aaron J Krych, Nick R Johnson, Rohith Mohan, Diane L Dahm, Bruce A Levy, Michael J Stuart
PURPOSE: Medial meniscus posterior root tears (MMPRTs) are recognized as a source of pain and dysfunction, but treatment options remain a challenge. The purpose of the study was to determine (1) the efficacy of partial meniscectomy to treat MMPRTs compared to a matched group of non-operatively treated MMPRTs, and (2) risk factors for worse clinical and radiographic outcome. METHODS: This retrospective comparative study was performed to include patients with complete, isolated MMPRTs with documented clinical symptoms and were treated with arthroscopic partial meniscectomy (PMM) and a minimum 2-year follow-up...
February 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28169099/the-role-of-medial-meniscus-posterior-root-tear-and-proximal-tibial-morphology-in-the-development-of-spontaneous-osteonecrosis-and-osteoarthritis-of-the-knee
#9
Ryota Yamagami, Shuji Taketomi, Hiroshi Inui, Keitaro Tahara, Sakae Tanaka
BACKGROUND: Medial meniscus posterior root tear (MMPRT) has been reported to play a key role in the development of spontaneous osteonecrosis of the knee (SONK) and osteoarthritis (OA) of the knee. However, little is known about the differences in the development of SONK and OA after MMPRT. The purpose of this study was to investigate the factors contributing to the development of these conditions. METHODS: We evaluated the existence of MMPRT and the extent of medial meniscal extrusion in preoperative magnetic resonance images and proximal tibial morphology in radiographs of 45 patients with SONK and 104 patients with OA who underwent knee surgery...
February 3, 2017: Knee
https://www.readbyqxmd.com/read/28057326/meniscus-morphology-does-tear-type-matter-a-narrative-review-with-focus-on-relevance-for-osteoarthritis-research
#10
REVIEW
Mohamed Jarraya, Frank W Roemer, Martin Englund, Michel D Crema, Heather I Gale, Daichi Hayashi, Jeffrey N Katz, Ali Guermazi
OBJECTIVE: To give a narrative overview of meniscal tears with a radiologic emphasis on the morphologic type, technical considerations, and on the relevance of the type of meniscal tear in the context of osteoarthritis (OA) research. DESIGN: Total 20 years of the PubMed database were searched for epidemiological, radiological, arthroscopic and biomechanical reports, and review articles focusing on meniscal tears in middle-aged and older individuals, in the setting of OA...
April 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28043939/associations-among-meniscal-damage-meniscal-symptoms-and-knee-pain-severity
#11
L A MacFarlane, H Yang, J E Collins, A Guermazi, M H Jones, E Teeple, L Xu, E Losina, J N Katz
OBJECTIVE: Meniscal tears occur frequently in patients with knee osteoarthritis (OA). The aim of our study was to determine whether meniscal damage identified on magnetic resonance imaging (MRI) is associated with the severity of knee pain or the frequency of meniscal symptoms in patients with knee OA. METHODS: We performed a cross-sectional study using data from the Meniscal Tear in Osteoarthritis Research (MeTeOR) trial. We characterized meniscal damage hierarchically as: root tear; maceration; long and short complex or horizontal tears; and simple tears...
June 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27919916/posterior-meniscal-root-repairs-outcomes-of-an-anatomic-transtibial-pull-out-technique
#12
Robert F LaPrade, Lauren M Matheny, Samuel G Moulton, Evan W James, Chase S Dean
BACKGROUND: Outcomes after transtibial pull-out repair for posterior meniscal root tears remain underreported, and factors that may affect outcomes are unknown. Purpose/Hypothesis: The purpose of this study was to compare patient-centered outcomes after transtibial pull-out repair for posterior root tears in patients <50 and ≥50 years of age. We hypothesized that improvement in function and activity level at minimum 2-year follow-up would be similar among patients <50 years of age compared with patients ≥50 years and among patients undergoing medial versus lateral root repairs...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27807116/tibiofemoral-contact-mechanics-with-horizontal-cleavage-tear-and-resection-of-the-medial-meniscus-in-the-human-knee
#13
Jason L Koh, Seung Jin Yi, Yupeng Ren, Todd A Zimmerman, Li-Qun Zhang
BACKGROUND: The meniscus is known to increase the contact area and decrease contact pressure in the tibiofemoral compartments of the knee. Radial tears of the meniscal root attachment along with partial resections of the torn meniscal tissue decrease the contact area and increase pressure; however, there is a lack of information on the effects of a horizontal cleavage tear (HCT) and partial leaf meniscectomy of such tears on tibiofemoral contact pressure and contact area. METHODS: Twelve fresh-frozen human cadaveric knees were tested under 10 conditions: 5 serial conditions of posterior medial meniscectomy (intact meniscus, HCT, repaired HCT, inferior leaf resection, and resection of both inferior and superior leaves), each at 2 knee flexion angles (0° and 60°) under an 800-N axial load...
November 2, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27761625/non-operative-management-of-medial-meniscus-posterior-horn-root-tears-is-associated-with-worsening-arthritis-and-poor-clinical-outcome-at-5-year-follow-up
#14
Aaron J Krych, Patrick J Reardon, Nick R Johnson, Rohith Mohan, Logan Peter, Bruce A Levy, Michael J Stuart
PURPOSE: Medial meniscus posterior root tears (MMPRTs) are a significant source of pain and dysfunction, but little is known about the natural history and outcome and for non-operative management of these lesions. The purpose of this study was to evaluate (1) the mid-term clinical and radiographic outcomes of non-operative treatment of MMPRTs and (2) risk factors for worse outcomes. METHODS: A retrospective review was performed for patients with symptomatic, unrepaired MMPRTs and a minimum 2-year follow-up for IKDC and Tegner outcome scores...
February 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27729320/overlap-between-anterior-cruciate-ligament-and-anterolateral-meniscal-root-insertions-a-scanning-electron-microscopy-study
#15
Brett D Steineman, Samuel G Moulton, Tammy L Haut Donahue, Cristián A Fontboté, Christopher M LaPrade, Tyler R Cram, Chase S Dean, Robert F LaPrade
BACKGROUND: The anterolateral meniscal root (ALMR) has been reported to intricately insert underneath the tibial insertion of the anterior cruciate ligament (ACL). Previous studies have begun to evaluate the relationship between the insertion areas and the risk of iatrogenic injuries; however, the overlap of the insertions has yet to be quantified in the sagittal and coronal planes. PURPOSE: To investigate the insertions of the human tibial ACL and ALMR using scanning electron microscopy (SEM) and to quantify the overlap of the ALMR insertion in the coronal and sagittal planes...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27726749/posterior-root-meniscal-tears-preoperative-intraoperative-and-postoperative-imaging-for-transtibial-pullout-repair
#16
Andrew R Palisch, Ronald R Winters, Marc H Willis, Collin D Bray, Theodore B Shybut
The menisci play an important biomechanical role in axial load distribution of the knees by means of hoop strength, which is contingent on intact circumferentially oriented collagen fibers and meniscal root attachments. Disruption of the meniscal root attachments leads to altered biomechanics, resulting in progressive cartilage loss, osteoarthritis, and subchondral edema, with the potential for development of a subchondral insufficiency fracture. Identification of meniscal root tears at magnetic resonance (MR) imaging is crucial because new arthroscopic surgical techniques (transtibial pullout repair) have been developed to repair meniscal root tears and preserve the tibiofemoral cartilage of the knee...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27603272/evaluation-treatment-and-outcomes-of-meniscal-root-tears-a-critical-analysis-review
#17
Eric J Strauss, Michael S Day, Michael Ryan, Laith Jazrawi
No abstract text is available yet for this article.
August 9, 2016: JBJS Reviews
https://www.readbyqxmd.com/read/27567426/pullout-repair-of-a-medial-meniscus-posterior-root-tear-using-a-fast-fix-%C3%A2-all-inside-suture-technique
#18
Y Kodama, T Furumatsu, M Fujii, T Tanaka, S Miyazawa, T Ozaki
A medial meniscus posterior root tear (MMPRT) may increase the tibiofemoral contact pressure by decreasing the tibiofemoral contact area. Meniscal dysfunction induced by posterior root injury may lead to the development of osteoarthritic knees. Repair of a MMPRT can restore medial meniscus (MM) function and prevent knee osteoarthritis progression. Several surgical procedures have been reported for treating a MMPRT. However, these procedures are associated with several technical difficulties. Here, we describe a technique to stabilize a torn MM posterior root using the FasT-Fix(®) all-inside meniscal suture device and a new aiming device...
August 23, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27401006/biomechanical-and-viscoelastic-properties-of-different-posterior-meniscal-root-fixation-techniques
#19
Philipp Forkel, Peter Foehr, Johannes C Meyer, Elmar Herbst, Wolf Petersen, Peter U Brucker, Rainer Burgkart, Andreas B Imhoff
PURPOSE: The purpose of the present study was to biomechanically compare three different posterior meniscal root repair techniques. Transtibial fixation of a posterior meniscus root tear (PMRT) combined with an anterior cruciate ligament (ACL) reconstruction via one tunnel only shows similar properties in terms of cyclic loading and load to failure compared with direct anchor fixation. METHODS: Twenty-eight porcine knees were randomly assigned to 4 groups (n = 7 each): (1) native posterior meniscal root, (2) suture anchor repair, (3) refixation via a tibial ACL tunnel in combination with an interference screw fixation of the ACL graft, and (4) refixation via a tibial ACL tunnel in combination with an interference screw fixation of the ACL graft with an additional extracortical button fixation...
February 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27354949/posterior-meniscal-root-repair-the-transtibial-double-tunnel-pullout-technique
#20
Jorge Chahla, Samuel G Moulton, Christopher M LaPrade, Chase S Dean, Robert F LaPrade
Meniscal root tears are increasingly recognized as an important pathology. Failure to recognize this pathology could lead to early onset osteoarthritis of the ipsilateral knee joint compartment similar to a total meniscectomy. Therefore, surgical treatment is necessary to restore meniscal function and to normalize contact pressures, when there is joint overload and sufficient remaining articular cartilage. This article details our anatomic posterior root repair procedure using a transtibial double tunnel pullout technique...
April 2016: Arthroscopy Techniques
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