posterior longitudinal ligament

Compression of the spinal cord due to ossification of the posterior longitudinal ligament (OPLL) often leads to quadriplegia or paraplegia in Japanese patients. A narrative review was performed specifically to study the differences pertaining to OPLL and other causes of degenerative cervical myelopathy (DCM). The types of cervical OPLL are classified into continuous, mixed, segmental, and other based on plain lateral X-ray. 0 comment. The posterior longitudinal ligament is a long and dense ligament in the spine.It runs from the top of the spine down to just above the hip and traverses the vertebrae of the back. A female asked: what do you recommend to treat a severed posterior longitudinal ligament? Ossification of the posterior longitudinal ligament (OPLL) is a condition of abnormal calcification of the pos-terior longitudinal ligament. We performed this review to update spine surgeons on the current state of the art on the etiology, diagnosis, and management of OPLL. Ossification is a process that can affect many tissues in the body, including several in the spine, such as ligaments, membranes and intervertebral discs. To examine the prevalence of ossification of the posterior longitudinal ligament (OPLL) and ossification of the nuchal ligament (ONL) of the cervical spine in the San Francisco area. 2. In Japan, approximately 75% of patients with this condition are treated using posterior decompression with instrumented spinal fusion (PDF). The Ligamentum Flavum forms a cover over the dura mater: a layer of tissue that protects the spinal cord. BACKGROUND The debate between anterior or posterior approach for pathologies such as cervical spondylotic myelopathy (CSM) and ossification of the posterior longitudinal ligament (OPLL) have drawn heated debate but are still inconclusive. We report on a series of patients who were managed with anterior cervical decompression and arthrodesis for the treatment of cervical myelopathy associated with ossification of the posterior longitudinal ligament. 0. Summary of Background Data. Ossification of the posterior longitudinal ligament (OPLL) is a hyperostotic condition of the spine with severe neurological deficits. Three of the more important ligaments in the spine are the Ligamentum Flavum, Anterior Longitudinal Ligament and the Posterior Longitudinal Ligament. The ligament actually has three layers: superficial, intermediate and deep. A US doctor answered Learn more. Background: Ossification of the posterior longitudinal ligament is commonly associated with cervical myelopathy. Ossification of the posterior longitudinal ligament, also known as OPLL, is a potentially serious diagnosis that is usually linked to the existence of cervical central canal stenosis. A US doctor answered Learn more. The posterior longitudinal ligament runs the length of the spine and stabilizes the bones of the spinal cord. Plus, free two-day shipping for six months when you sign up for Amazon Prime for Students. Ossification of the posterior longitudinal ligament of the spine (OPLL) is a common form of human myelopathy caused by a compression of the spinal cord by ectopic ossification of spinal ligaments. Thoracic myelopathy caused by ossification of the posterior longitudinal ligament (OPLL) remains one of the most difficult-to-treat disorders for spine surgeons. often asymptomatic; symptoms and exam findings consistent with symptoms of myelopathy ; Physical exam. The posterior longitudinal ligament seems to be most developed at the level of L3 and L4, where its average thickness is 1.4 mm. Depends: I presume you are speaking of the finger PLL. The prevalence of OPLL and ONL is unknown in the non-Asian population. posterior longitudinal ligament injury. Posterior longitudinal ligament calcification. Depends: I presume you are speaking of the finger PLL. A female asked: what do you recommend to treat a severed posterior longitudinal ligament? UofT Libraries is getting a new library services platform in January 2021. 8 synonyms for ligament: bond, knot, ligature, link, nexus, tie, vinculum, yoke. Anterior longitudinal ligament is stretched or tears, as the head snaps forward and then back again causing a whiplash injury. Posterior longitudinal ligament synonyms, Posterior longitudinal ligament pronunciation, Posterior longitudinal ligament translation, English dictionary definition of Posterior longitudinal ligament. Antonyms for Posterior longitudinal ligament. 0. Ossification of the posterior longitudinal ligament (OPLL) is well demonstrated by plain radiography but is frequently overlooked. What are synonyms for Posterior longitudinal ligament? The ligament is thick and slightly more narrow over the vertebral bodies and thinner but slightly wider over the intervertebral discs which is much less pronounced than that seen in the posterior longitudinal ligament. Car or sports accidents along with falls are the leading cause of injuries or trauma to the ligaments of the spine. A Verified Doctor answered. The posterior longitudinal ligament is situated within the vertebral canal, and extends along the posterior surfaces of the bodies of the vertebræ, from the body of the axis, where it is continuous with the membrana tectoria, to the sacrum. Synonyms for Posterior longitudinal ligament in Free Thesaurus. The Posterior Longitudinal Ligament extends up and down behind the spine and inside the spinal canal. "Ossification of Posterior Longitudinal Ligament" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings).Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity. the posterior longitudinal ligament.1 Although most of the studies on OPLL are from East Asia, OPLL can be encountered in any patient population. Anatomy A sheet or band of tough, fibrous tissue connecting bones or cartilages at a joint or supporting an organ. Treatment techniques depend on severity, age of injury, and the amount of deformity. https://en.m.wikipedia.org/wiki/Posterior_longitudinal_ligament Methods. The PLL is narrower and weaker than the anterior longitudinal ligament (ALL), which extends along the anterior margins of the vertebral bodies, also from the atlas to the sacrum. Background: Ossification of the posterior longitudinal ligament (OPLL) is most frequently seen in the cervical spine. Surgical treatment is a matter of controversy. The ligament in the mid-portion of each vertebral body covers the vascular foramina. The posterior longitudinal ligament (PLL) appeared interrupted in MRI in 60.7% of patients. Connection of discontinuous segments in early functional recovery from thoracic ossification of the posterior longitudinal ligament treated with posterior instr Up to 90% off Textbooks at Amazon Canada. During surgery, subligamentous radicular disk fragments were found in 41.4% of patients, while in 39.3% of cases, no subligamentous fragments were found. Hyperplasia of the fibrocartilaginous tissue may occur in the posterior aspect of the intervertebral disc, extending into the ossified posterior longitudinal ligament. A ligament can overstretch, become twisted, tear, or break as a result of trauma. From L2 upwards, the ligament thins markedly. A Verified Doctor answered. The posterior longitudinal ligament (PLL) is a band of collagen and elastin fibers that extends along a line along the posterior margins of the vertebral bodies from the atlas to the sacrum. n. 1. OPLL is most common in the cervical spine. Patients with OPLL frequently present with a … Ossification of Posterior Longitudinal Ligament (OpLL) causes. The commonest intraoperative event was bleeding (46%). Computed tomography (CT) imaging is often used in clinical practice for evaluating ossified lesions as it can detect their precise location, size, and shape. It is broader above than below, and thicker in the thoracic than in the cervical and lumbar regions. Treatment techniques depend on severity, age of injury, and the amount of deformity. A calcification of the posterior longitudinal ligament of the spinal column, usually at the level of the cervical spine. If it is rec ... Read More. If it is rec ... Read More. While the cause of OpLL is not fully understood, lifestyle, environmental, and hormonal factors play a role. 3 doctors agree. 9 Progression of ossification follows an evolutionary process, beginning as endochondral or membranous ossification. There is a thicker middle portion approximately about 2.5-4 mm in width throughout the whole length of the ligament. This ligament connects under the facet joints to create a small curtain over the posterior openings between the vertebrae. 3 doctors agree. CT scan is a highly reliable modality for evaluating the extent of the lesion, in addition CT myelography images permit an analysis of the degree of encroachment on the spinal canal and compression of the cord. Learn more about the change. Ossification of the posterior longitudinal ligament of the spine (OPLL) is a condition that is characterized by the calcification of the soft tissues that connect the bones of the spine, which may lead to compression of the spinal cord.Many affected people do not have any signs or symptoms, while others may experience mild pain or numbness in the arms and/or legs. 0. What Causes Ligament Injuries? The posterior longitudinal ligament is initially replaced with bony tissue. In addition to the extremely common ligament sprains that nearly everyone experiences at some point in his or her life, ligaments can also calcify later in life. mechanical stress on posterior longitudinal ligament; Presentation: Symptoms. Depends: I presume you are speaking of the posterior openings between the vertebrae the Flavum! This ligament connects under the facet joints to create a small curtain over dura! Trauma to the ligaments of the spinal canal its average thickness is 1.4 mm vinculum! 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