Science topic

Ligaments - Science topic

Shiny, flexible bands of fibrous tissue connecting together articular extremities of bones. They are pliant, tough, and inextensile.
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Publications related to Ligaments (10,000)
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Article
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Tendon and ligament (TL) injuries affect millions of people annually. Biopolymers play a significant role in TL tissue repair, whether the treatment relies on tissue engineering strategies or using artificial tendon grafts. The biopolymer governs the mechanical properties, biocompatibility, degradation, and fabrication method of the TL scaffold. Ma...
Article
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Background Falciform ligament abscess (FLA) is a rare disease, and its diagnosis can be challenging without typical image findings of an abscess. We report a patient with FLA that presented as a mass, with an indistinct border between it and the liver, in addition to disseminated foci within the liver. This made it difficult to determine whether it...
Article
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Purpose The aim of the study was to directly measure graft forces of an anterior cruciate ligament reconstruction (ACLR) and a lateral extra-articular tenodesis (LET) using the modified Lemaire technique in combined anterior cruciate ligament (ACL) deficient and anterolateral rotatory instable knees and to analyse the changes in knee joint motion r...
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Purpose This study evaluates the use of the needle arthroscopy in anatomical reconstruction of the lateral ankle. We hypothesized that the needle arthroscopy would allow anatomical reconstruction to be performed under arthroscopy. Methods Three patients underwent treatment of chronic ankle instability. The comparative procedure was performed in th...
Article
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Fabric-reinforced cementitious matrix (FRCM) with synthetic reinforcements has been employed in a wide of precast products in the current market. However, FRCM employing cellulosic fibers has been limited in civil engineering applications due to the absence of a well-established standardization. Cellulosic textile structures present many advantages...
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The superficial zone of articular cartilage contributes to smooth joint motion through the production of proteoglycan 4 (PRG4), also known as lubricin. Recent studies indicate novel effects of PRG4 as a signaling molecule, other than a simple extracellular matrix protein. Additionally, the accumulating evidence displays that various molecules and s...
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Objectives The purpose of the present study was to determine whether ultrasound enables assessment of sternoclavicular structures. Methods A preliminary study in 3 cadavers was followed by an ultrasound study, performed by 2 musculoskeletal radiologists working in consensus, in 59 patients without history of trauma, surgery or pain in the sternocl...
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Purpose The aim of this systematic review is to investigate the prevalence of Common Peroneal Nerve Palsy after total knee arthroplasty in valgus deformities. Furthermore, the effectiveness of a peroneal nerve release prior to arthroplasty to prevent the palsy will be investigated. Methods PubMed and Google Scholar were searched. Search terms rega...
Article
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Anterior knee pain (AKP) is one of the most common conditions to bring active young patients to a sports injury clinic. It is a heterogeneous condition related to multiple causative factors. Compared to the general population, there appears to be a higher risk of development of patellofemoral osteoarthritis in patients with AKP. AKP can be detrimen...
Article
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Background Previous research shows kinematic and kinetic coupling between the metatarsophalangeal (MTP) and midtarsal joints during gait. Studying the effects of MTP position as well as foot structure on this coupling may help determine to what extent foot coupling during dynamic and active movement is due to the windlass mechanism. This study’s pu...
Article
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Background Patient-reported allergies (PRAs) are often stigmatized as a potential nonmodifiable risk factor for increased pain and worse functional outcomes following surgery. However, there is a dearth of literature directly assessing the impact of PRAs on outcomes in sport surgeries such as medial patellofemoral ligament reconstruction (MPFLR). T...
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Purpose Anterior cruciate ligament rupture is associated with characteristic bone contusions in approximately 80% of patients, and these have been correlated with higher pain scores. Bone bruising may indicate joint damage that increases inflammation and the likelihood of posttraumatic osteoarthritis. We sought to characterize the severity of bone...
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Background Artificial intelligence (AI) is defined as the study of algorithms that allow machines to reason and perform cognitive functions such as problem-solving, objects, images, word recognition, and decision-making. This study aimed to review the published articles and the comprehensive clinical relevance of AI-based tools used before, during,...
Article
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Isolated patellofemoral osteoarthritis (PFOA) is a common cause of anterior knee pain in patients over the age of 40 years. Patellofemoral arthroplasty (PFA) is an option to address PFAO when the non-operative or joint preserving management has failed. The goals of PFA are to reduce pain and increase function of the knee in a bone and ligament pres...
Article
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Introduction: The Danish Knee Ligament Reconstruction Registry (DKRR) has monitored the outcomes of surgeries for multi-ligament knee injuries (MLKI) since 2005. This study aimed to compare the subjective clinical outcomes of patients who had undergone surgery after MLKI with those of patients who had received isolated anterior cruciate ligament (...
Article
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Background This systematic review investigates the role of synthetic graft for primary medial patellofemoral ligament (MPFL) reconstruction in patients with recurrent patellofemoral instability, focusing on clinical scores and the rate of complications. Methods This systematic review was conducted according to the PRISMA statement. The main online...
Article
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Background Anterior cruciate ligament (ACL) injury and subsequent reconstruction is common and has a profound effect on health-related quality of life. There is currently limited understanding as to which variables are associated with a successful outcome post-ACL reconstruction (ACLR) in recreational athletes. Purpose Explore the association betw...
Article
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Background Revision anterior cruciate ligament (ACL) reconstructions are usually complex owing to previous tunnels. The objective of this study is to report the results of a revision ACL reconstruction technique with a tibial tunnel performed from the anterolateral plateau associated with an anterolateral ligament (ALL) reconstruction. Methods Pat...
Article
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Background Massive hemoptysis after thoracic aortic aneurysm (TAA) repair is a rare but potentially lethal condition. Endovascular management is a challenging treatment option due to the complexity of culprit vessel access. Case presentation An 81-year-old woman was referred to our hospital with massive hemoptysis. She had a history of graft repla...
Article
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Background Several studies have shown persistent postural control deficits and rotatory instability in patients after isolated Anterior Cruciate Ligament (ACL) reconstruction. There is evidence to support that the Anterolateral Ligament (ALL) plays an important role in the remaining anterolateral rotatory laxity of the knee. There are no further ev...
Article
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Ligaments are flexible and stiff tissues around joints to support body movements, showing superior toughness and fatigue-resistance. Such a combination of mechanical properties is rarely seen in synthetic elastomers because stretchability, stiffness, toughness, and fatigue resistance are seemingly incompatible in materials design. Here we resolve t...
Article
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Medial opening wedge high tibial osteotomy (MOWHTO) is a widely used surgical treatment option for medial compartmental osteoarthritis with varus deformity. It is important that proper lower limb alignment is achieved. However, there has been no consensus about an optimal alignment in MOWHTO. Most studies suggest that achieving valgus alignment is...
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Background Discriminating traumatic rotator cuff tears (RCTs) from degenerative RCTs is sometimes difficult in elderly patients because the prevalence of asymptomatic RCTs increases with age. Little intraoperative information is available on the characteristics of traumatic and degenerative RCTs in elderly patients. The purpose of this study was to...
Article
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Pathology of the falciform ligament is extremely rare. We present a case of a 50-year-old man with a torsion of the fatty appendage of the falciform ligament. This is a self-limiting disease. To prevent unnecessary surgical management, it is important to recognize on computed tomography scans.
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Conventional two-dimensional (2D) re-entrant auxetic honeycomb is one of the earliest examples of auxetic metamaterials. Recently, plenty of 2D re-entrant honeycomb variants are developed to enhance their stiffness. However, the stiffness enhancement for most of the existing designs is generally obtained with compromising the conjugated auxeticity....
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Median arcuate ligament syndrome is a clinical condition in which the median arcuate ligament causes compression and narrowing of the celiac artery. It has been reported that collateral pathways, which is developed by the decrease of blood flow from the celiac artery, facilitates the formation of aneurysms. Aneurysms around the pancreas in particul...
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The jumping mechanism with supporting morphology and kinematics is described in the marsh beetle Scirtes hemisphaericus (Coleoptera: Scirtidae). In marsh beetles, the jump is performed by the hind legs by the rapid extension of the hind tibia. The kinematic parameters of the jump are: 139–1536 m s⁻² (acceleration), 0.4–1.9 m s⁻¹ (velocity), 2.7–8.4...
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Background Endoscopic access to the targeted site is a major challenge for the endoscopic retrograde cholangiopancreatography (ERCP) in patients undergoing Roux-en-Y (R-Y) reconstruction after total or subtotal gastrectomy. We aimed to evaluate the feasibility, reproducibility, and safety of mechanistic loop resolution strategies using a short-type...
Article
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Les aplombs du cheval correspondent à l'orientation des membres sous le corps. Le jeune poulain peut être confronté quelques jours après sa naissance ou durant sa croissance à des déviations angulaires de ces membres entraînant une mauvaise répartition des charges, une usure non homogène au niveau des articulations, des muscles et des ligaments. Ce...
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Objective: In order to facilitate data pooling between studies, we explored harmonisation of patient-reported outcome measures (PROMS) in people with knee pain due to osteoarthritis or knee trauma, using the Patient Acceptable Symptom State scores (PASS) as a criterion. Methods: We undertook a systematic literature review (SLR) of PASS scores, and...
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Objective To compare the clinical effectiveness of cortical button (CB), cross-pin (CP) and compression with interference screws (IS) fixation techniques in anterior cruciate ligament (ACL) reconstruction using hamstring graft. Methods Studies were systematically retrieved from PubMed, Embase, Cochrane Library and Web of Science up to May 20, 2021...
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Osteopathic manipulative treatment (OMT) is used in both inpatient and outpatient settings. Evidence suggests that OMT can reduce both patients’ recovery time and the financial cost of their acute medical treatment and rehabilitation. Multiple studies from neonatal intensive care units (NICUs) are presented in this article that demonstrate infants...
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Background Gastroesophageal reflux is a known complication following laparoscopic sleeve gastrectomy (LSG) as anatomical changes predispose to reduced lower esophageal sphincter pressure and development of hiatus hernia. The mainstay of surgical management has been Roux-en-Y gastric bypass (RYGB) which is not without risk. Hiatus hernia repair (HHR...
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Ligaments of the knee provide stability and prevent excessive motions of the joint. Rupture of the anterior cruciate ligament (ACL), a common sports injury, results in an altered loading environment for other tissues in the joint, likely leading to their mechanical adaptation. In the collateral ligaments, the patterns and mechanisms of biomechanica...
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Objective: To describe the injury rate, severity, cause, anatomical location (tissue damaged), recurrence, place and time during matches throughout a season in the Spanish Rugby Union Division de Honor. Methods: Observational, prospective and descriptive study conducted in the competition of the Spanish División de Honor de Rugby with 258 players....
Article
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Background: Oblique-pulling manipulation has been widely applied in treating sacroiliac joint (SIJ) dysfunction. However, little is known about the biomechanical mechanism of the manipulation. This study aims to analyze the SIJ motion under oblique-pulling manipulation, in comparison with compression and traction loads. Methods/Study Design: A tota...
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Background Soft tissue interposition between a suspensory cortical button and the lateral femoral condyle is the most common cause of postoperative suspensory cortical button migration in patients undergoing anterior cruciate ligament reconstruction (ACLR). Purpose To investigate the effects of soft tissue interposition and suspensory cortical but...
Article
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Introduction Considerable anatomic variations of sagittal femoral condylar shape have been reported, with a continuum between spherical (or single-radius) and ovoid (or multi-radius) condyles. The purpose of this systematic review and meta-analysis was to critically appraise and synthesise the available literature on the sagittal femoral profile. T...
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Introduction: Graft-versus-host disease (GVHD) can occur after allogeneic bone marrow transplantation (BMT) and can affect the skin, gastrointestinal tract, lungs, liver, and vulvovaginal areas. Case Presentation: This case report described a 65-year-old multiparous patient with myelodysplastic syndrome who underwent a matched unrelated donor trans...
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Objective. To explore the application value of low-dose CT and MRI in the evaluation of soft tissue injury in tibial plateau fractures. Methods. This study included 89 patients with high suspicion of TPF and KI admitted to our hospital from July 2015 to May 2021. After arthroscopy, 81 patients were diagnosed with FTP combined with KI. The Schatzker...
Method
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SUBSTANCE: invention refers to medicine, namely surgery. The abdominal cavity is opened and inspected; the stomach with lymph nodes is mobilised; that is followed by lymph node dissection of a hepatoduodenal ligament. The gastroduodenal artery is transected and ligatured. Thereafter, common hepatic and proper hepatic arteries are taken aside in the...
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Original ArticleIntroduction: Ilioinguinal nerve (IIN) is repeatedly damaged during surgeries as well as through the application of local anaesthesia to the lower abdominal wall. This study aimed to identify the variations of the IIN during its course in the anterior abdominal wall. Materials and Methods: A cross-sectional study on formalin-prese...
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Purpose Scapholunate dissociation is a common and significant injury to the wrist. Radiographs are important in the diagnosis of this injury and in the planning of treatment. The tangential radiograph view was described almost 40 years ago as a method for accurately measuring scapholunate gaps. The hand is positioned on a 20° foam rubber block and...
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The sagittal anatomy of the proximal tibia has a bearing on the forces exerted on the cruciate ligaments. A high posterior tibial slope is now a well-known risk factor causing failure of anterior cruciate ligament (ACL) reconstructions. The posterior slope can be calculated on short or full-length radiographs, MRI scans, or three-dimensional CT sca...
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“Text neck" is a condition due to repetitive stress or overuse in the region of neck, induced by long term use of smart phone or computer devices with bent the head downward and not moving for long time. Due to frequent flexion of neck can change the curvature of cervical spine, supporting structures like ligaments, tendons, muscles, the bony parts...
Conference Paper
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Research on midfoot injuries have primarily concentrated on the central column and the Lisfranc ligament without amassing evidence on lateral column injuries. Lateral column injuries have historically been treated with Kirschner wire fixation when encountered. 1 With increasing understanding on the column injury principles and the discovery of the...
Article
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On the basis of star-shaped core sandwich panel, a novel sandwich panel with petal-triangle core (SP-PSC) was proposed to improve the negative Poisson’s ratio (NPR) effect while retaining the characteristics of light weight and high strength. To study the complex structure more conveniently and quickly, a variational asymptotic method-based equival...
Article
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The foot absorbs shocks with its arches, muscles, ligaments and joints, and bodyweight transmission and it pushes the body forward during all movement patterns. Pes planus is more important in sports activities that include balance and sports performance, such as walking, running, jumping, or transferring weight to a single lower limb. This study,...
Article
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In sports dance training, the injury rate of athletes’ ligaments is higher than that of ordinary ones. Careful study of ligament repair methods can better prolong the sports life of sports dance athletes. The purpose of this paper is to investigate how to analyze ligament repair in sports dancers based on health monitoring. This paper proposes a de...
Article
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Background Because the patients undergoing medial patellofemoral ligament reconstruction (MPFLr) combined with medial tibial tubercle transfer (TTT) procedure are usually young and active, the quality of life (QoL) is also an important prognostic factor for patients with recurrent patellar dislocation. Assessing QoL can provide more useful and accu...
Article
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Background: Conventional treatments may not be effective in some severe cases of fecal incontinence (FI). Objectives: In the present study, we evaluated the applicability of ventral pelvio-anal reconstruction (VPAR) as a modified operative technique for 17 patients with severe and refractory FI. Methods: We performed VPAR by placing a mesh in the p...
Article
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Background Studies on ankle syndesmosis have focused on anterior inferior tibiofibular ligament (AITFL) and interosseous membrane injuries; however, the characteristics of posterior inferior tibiofibular ligament (PITFL) ruptures remain unclear. Purpose/Hypothesis This study evaluated the biomechanical characteristics of syndesmotic instability ca...
Article
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Background Young patients undergoing anterior cruciate ligament (ACL) reconstruction (ACLR) are at a particularly high risk of graft ruptures compared with adults. Recent studies have demonstrated significant reductions in ACL graft rupture rates in high-risk adult populations when a lateral extra-articular procedure is performed, but comparative s...
Article
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PurposeAim of this study was to compare the use of split-thickness skin graft (STSG) with and without additional MatriDerm® application in a predominantly one-step procedure for the treatment of severe traumatic soft tissue defects of the lower limb.Methods This retrospective study included patients treated in a European level I trauma center betwe...