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Meniscal tear

Jose Maria Silberberg Muiño, Alessandro Nilo Fulvi, Martin Gimenez, Jose Ramon Muina Rullan
The current understanding of the biomechanical role of the meniscus, in conjunction with the increasing efforts to achieve its preservation within the orthopaedic community during treatment of meniscal lesions, has prompted the development of different meniscal repair techniques. The outside-in technique is recommended for anterior horn and middle-segment meniscal tears and has been recognized as a low-cost procedure with a low incidence of complications. Diverse modifications of this technique have been published over the past decade...
November 2018: Arthroscopy Techniques
Joshua T Bram, Nakul S Talathi, Neeraj M Patel, Christopher J DeFrancesco, Brendan M Striano, Theodore J Ganley
OBJECTIVE: To identify associations between race or insurance status and preoperative, intraoperative, and postoperative findings in a large cohort of pediatric anterior cruciate ligament (ACL) reconstructions. DESIGN: Retrospective cohort study. SETTING: Division of Orthopaedics at an urban tertiary care children's hospital. PATIENTS: 915 pediatric (<21) patients undergoing primary ACL reconstruction between January 2009 and May 2016...
November 28, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Ahmet Saygılı, Songül Albayrak
Menisci are structures that directly affect movement, so early detection of meniscus tears also helps to prevent progressive knee disorders such as osteoarthritis. Manual segmentation of the menisci and diagnosis of the meniscal tear is a costly process in terms of time and effort for a radiologist. The aim of this study is to automatically determine the location and the type of meniscal tears that are important in the diagnosis and effective treatment of this problem. For this purpose, 29 different MR images, which were provided by Osteoarthritis Initiative (OAI), were used in the study...
December 4, 2018: Artificial Intelligence in Medicine
Nicholas N DePhillipo, Gilbert Moatshe, Jorge Chahla, Zach S Aman, Hunter W Storaci, Elizabeth R Morris, Colin M Robbins, Lars Engebretsen, Robert F LaPrade
BACKGROUND: Meniscal ramp lesions have been defined as a tear of the peripheral attachment of the posterior horn of the medial meniscus (PHMM) at the meniscocapsular junction or an injury to the meniscotibial attachment. Precise anatomic descriptions of these structures are limited in the current literature. PURPOSE: To quantitatively and qualitatively describe the PHMM and posteromedial capsule anatomy pertaining to the location of a meniscal ramp lesion with reference to surgically relevant landmarks...
December 7, 2018: American Journal of Sports Medicine
(no author information available yet)
No abstract text is available yet for this article.
December 4, 2018: BMJ: British Medical Journal
Zhong Zhang, Xiao-Ke Shang, Bei-Ni Mao, Jian Li, Gang Chen
PURPOSE: To compare the clinical, imaging, and arthroscopic characteristics of the torn discoid lateral meniscus (TDLM) in patients greater than 40 years of age with matched controls. METHODS: One hundred and ninety-four older patients (211 knees) who underwent arthroscopic surgery for a TDLM were consecutively recruited (Group 1). Another 211 age- and sex-matched controls with a torn semilunar lateral meniscus were included in this study (Group 2). Statistical analyses were used to determine the differences in the clinical, imaging, and arthroscopic characteristics between the two groups...
December 3, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Andrew G Geeslin
Patients with anterior cruciate ligament (ACL) tears have a greater incidence of knee arthritis than the general population. Acute chondral injury, acute or delayed meniscal pathology, and altered contact mechanics have all been implicated in the development of arthritis. Dynamic models (i.e., testing during simulated knee motion) have shown the biomechanical influence of ACL tears on knee laxity, although most investigations of contact mechanics rely on static models (i.e., testing during no relative tibiofemoral motion) wherein pressure distribution is mapped by thin films loaded in compression...
December 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Jisook Yi, Young Han Lee, Ho-Taek Song, Jin-Suck Suh
The objectives of this study were to compare the ultrashort T2* relaxation time with the T2* relaxation time using the 3 dimensional (3D) cones sequence in 3 groups of patients with normal, degenerated, and torn knee menisci, and to demonstrate the additional effect of the ultrashort echo time (UTE) signal intensity.Following institutional review board approval, 42 knee magnetic resonance imaging (MRI) scans of 42 patients who presented with knee pain and underwent knee MRIs, with the 3D Cones of UTE sequence (minimum TEs: 32 μs) and a 3T MRI scanner (Discovery 750, GE Healthcare, Waukesha, WI), were analyzed...
November 2018: Medicine (Baltimore)
James K Sullivan, James J Irrgang, Elena Losina, Clare Safran-Norton, Jamie Collins, Swastina Shrestha, Faith Selzer, Kim Bennell, Leslie Bisson, Angela T Chen, Courtney K Dawson, Alexandra B Gil, Morgan H Jones, Melissa A Kluczynski, Kathleen Lafferty, Jeffrey Lange, Emma C Lape, John Leddy, Aaron V Mares, Kurt Spindler, Jennifer Turczyk, Jeffrey N Katz
BACKGROUND: Meniscal tears often accompany knee osteoarthritis, a disabling condition affecting 14 million individuals in the United States. While several randomized controlled trials have compared physical therapy to surgery for individuals with knee pain, meniscal tear, and osteoarthritic changes (determined via radiographs or magnetic resonance imaging), no trial has evaluated the efficacy of physical therapy alone in these subjects. METHODS: The Treatment of Meniscal Tear in Osteoarthritis (TeMPO) Trial is a four-arm multi-center randomized controlled clinical trial designed to establish the comparative efficacy of two in-clinic physical therapy interventions (one focused on strengthening and one containing placebo) and two protocolized home exercise programs...
December 1, 2018: BMC Musculoskeletal Disorders
J J Masquijo, F Bernocco, J Porta
BACKGROUND: Some authors have suggested that the diminished vascular blood supply, peripheral stability and thickness of the discoid meniscus (DM) would make it more prone to tears. The aims of this study are two-fold: 1) To analyse morphological characteristics by magnetic resonance (MRI), and 2) To correlate the size of the meniscus with the presence of meniscal tears. METHODS: The MRI of patients ≤18 years-old over a period of 5 years were reviewed, and patients with DM were identified...
November 24, 2018: Revista Española de Cirugía Ortopédica y Traumatología
Akira Tsujii, Tomohiko Matsuo, Kazutaka Kinugasa, Yasukazu Yonetani, Masayuki Hamada
INTRODUCTION: Treatment of a horizontal tear of a complete discoid lateral meniscus (DLM) is still controversial. Preserving peripheral rim as a normal shape of the meniscus with single-leaf resection is a conventional treatment, however meniscal function could not be fully restored. PRESENTATION OF CASE: A 28-year old woman and a 34-year old woman experienced knee pain and had restricted knee extension. MRI showed horizontal tears of complete DLM in both patients...
November 22, 2018: International Journal of Surgery Case Reports
Nicholas Bien, Pranav Rajpurkar, Robyn L Ball, Jeremy Irvin, Allison Park, Erik Jones, Michael Bereket, Bhavik N Patel, Kristen W Yeom, Katie Shpanskaya, Safwan Halabi, Evan Zucker, Gary Fanton, Derek F Amanatullah, Christopher F Beaulieu, Geoffrey M Riley, Russell J Stewart, Francis G Blankenberg, David B Larson, Ricky H Jones, Curtis P Langlotz, Andrew Y Ng, Matthew P Lungren
BACKGROUND: Magnetic resonance imaging (MRI) of the knee is the preferred method for diagnosing knee injuries. However, interpretation of knee MRI is time-intensive and subject to diagnostic error and variability. An automated system for interpreting knee MRI could prioritize high-risk patients and assist clinicians in making diagnoses. Deep learning methods, in being able to automatically learn layers of features, are well suited for modeling the complex relationships between medical images and their interpretations...
November 2018: PLoS Medicine
R Jay Lee, Adam Margalit, Afamefuna Nduaguba, Melissa A Gunderson, Theodore J Ganley
Background: Risk factors for concomitant ligament injuries (CLIs) of the lateral collateral ligament (LCL) and medial collateral ligament (MCL) in children and adolescents with anterior cruciate ligament (ACL) tears are unknown. Purpose: To determine whether body mass index (BMI), sex, age, and injury mechanism are associated with CLIs in children and adolescents with ACL tears and whether CLIs are associated with meniscal and chondral injuries and a delay to surgery...
November 2018: Orthopaedic Journal of Sports Medicine
Philip L Wilson, Charles W Wyatt, Jose Romero, Meagan J Sabatino, Henry B Ellis
Background: Despite the increasing incidence of sports-related knee injuries in youth athletes, few studies have reported on the diagnosis and treatment of pediatric and adolescent meniscal root injuries. Purpose: To describe traumatic posterior meniscal root injuries in a pediatric and adolescent population and compare the presentation of meniscal root injuries versus that of nonroot injuries. Study Design: Cohort study; Level of evidence, 3...
November 2018: Orthopaedic Journal of Sports Medicine
Robinetta Hudson, Amy Richmond, Belinda Sanchez, Valerie Stevenson, Russell T Baker, James May, Alan Nasypany, Don Reordan
Objective: The purpose of this study was to assess the effects of the Mulligan Concept (MC) 'squeeze' technique compared to a sham technique in participants with a clinically diagnosed meniscal tear. Methods: A multi-site randomized sham-controlled trial of participants ( n  = 23), aged 24.91 ± 12.09 years, with a clinically diagnosed meniscal tear were equally and randomly divided into two groups. Groups received a maximum of six treatments over 14 days. Patient outcomes included the numeric pain rating scale (NRS), patient-specific functional scale (PSFS), the disablement in the physically active (DPA) scale and the knee injury osteoarthritis outcome score...
December 2018: Journal of Manual & Manipulative Therapy
Xin Tang, Brandon Marshall, Joon Ho Wang, Junjun Zhu, Jian Li, Patrick Smolinski, Freddie H Fu
BACKGROUND: The effect of lateral meniscal posterior root tear and repair-commonly seen in clinical practice in the setting of anterior cruciate ligament (ACL) reconstruction-is not known. PURPOSE/HYPOTHESIS: This study evaluated the effect of tear and repair of the lateral meniscal posterior root on the biomechanics of the ACL-reconstructed knee. It was hypothesized that anterior tibial translation would increase under anterior loading and simulated pivot-shift loading with the root tear of the posterior lateral meniscus, while repair of the root tear would reduce it close to the noninjured state...
November 19, 2018: American Journal of Sports Medicine
Shannon N Heidorn, Sherman O Canapp, Christine M Zink, Christopher S Leasure, Brittany J Carr
OBJECTIVE To determine rate of and factors associated with return to agility competition for dogs with cranial cruciate ligament (CrCL) rupture treated with tibial plateau leveling osteotomy (TPLO). DESIGN Retrospective case series with nested case-control study. ANIMALS 31 dogs involved in agility competition with CrCL tears treated by TPLO at a private veterinary clinic from 2007 through 2013. PROCEDURES Medical records were reviewed to collect information on dog signalment, lesion characteristics, and surgical data...
December 1, 2018: Journal of the American Veterinary Medical Association
Chen Kun-Hui, Chiang En-Rung, Wang Hsin-Yi, Ma Hsiao-Li
The incidence of meniscal tear was reported to increase with the delay of anterior cruciate ligament reconstruction (ACLR). The tear may occur concurrently with the ACL injury or after the ACL injury. Few studies had focused on the patients whose meniscus is intact during ACL injury. We determined the correlation between timing of surgery and incidence of meniscal tears in ACL-deficient knees with initially intact meniscus. We retrospectively reviewed 387 patients who had undergone primary ACLR. Time of initial ACL injury, magnetic resonance imaging (MRI) examination, and surgery was recorded...
November 16, 2018: Journal of Knee Surgery
Nina Jullum Kise, Ewa M Roos, Silje Stensrud, Lars Engebretsen, May Arna Risberg
PURPOSE: To identify the prognostic factors for 2-year patient-reported outcomes in middle-aged patients with degenerative meniscal tears treated with exercise therapy (ET) or arthroscopic partial meniscectomy (APM). METHODS: One hundred and seven patients, with mean age 49.6 (SD 6.2) years and BMI 25.7 (SD 3.7), were included in this analysis of data from the OMEX trial ( NCT01002794). Linear and Poisson regression models were built to explore the associations between potential prognostic factors (patient characteristics, knee function-related and disease-related factors) and 2-year patient-reported outcomes: the Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales Pain, Symptoms, ADL, Sport/Rec, QoL and 5-point Global Rating of Change scales for knee pain (GRC Pain) and function (GRC Function)...
November 16, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Barak Haviv, Mohamed Kittani, Lee Yaari, Ehud Rath, Snir Heller, Shai Shemesh, Mustafa Yassin
PURPOSE: To evaluate the progressive changes in the morphology of traumatic ruptures of the anterior cruciate ligament (ACL) over time. A secondary objective was evaluating their correlation with meniscal tears or chondral lesions. METHODS: The study included one hundred and one patients who underwent ACL reconstruction surgery of the knee after a definite date of injury. The torn ACL remnant morphological pattern was assessed and classified during arthroscopy. A correlation analysis was performed between the pathological features of the remnant and the time length from injury...
November 14, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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