OPLL

(redirected from Ossification of the Posterior Longitudinal Ligament)
AcronymDefinition
OPLLOssification of the Posterior Longitudinal Ligament (cervical spine)
OPLLOrchard Park Little League (Orchard Park, NY)
OPLLOptical Phase-Locked Loop
OPLLOffset Phase-Locked Loop
OPLLOptoelectronic Phase-Locked Loop
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References in periodicals archive ?
Effective gait training outcomes using HAL have been reported in patients with chronic stroke [7-9] and spinal cord injury [9-12], as well as in patients following surgery for spinal myelopathy of the thoracic spine due to ossification of the posterior longitudinal ligament (OLF) [13-15].
Additional causes of stenosis related to degenerative disease include synovial cysts, and ossification of the posterior longitudinal ligament.
Kawaguchi, "Insulin secretory response is positively associated with the extent of ossification of the posterior longitudinal ligament of the spine," Journal of Bone and Joint Surgery--Series A, vol.
There are various degenerative conditions which may lead to thoracic stenosis such as thickening or OLF, facet joint hypertrophy, ossification of the posterior longitudinal ligament, ventral disc protrusion or osteophytic changes.
Ossification of the posterior longitudinal ligament of the cervical spine and SAPHO syndrome.
Ossification of the posterior longitudinal ligament of the spine (OPLL; MIM 602475) is an intractable spinal disease.
Cervical magnetic resonance imaging (MRI) showed spinal stenosis at C4-5 due to ossification of the posterior longitudinal ligament (OPLL) and a signal intensity change of the interverbral disc of C5-6 (Figure 4).
Previous publications reported variable values about the incidence of CSFL following thoracic decompression and most of them fell in the range of 20–30% [Table 1].[sup][1],[5],[7],[8],[9],[18],[19],[20],[21],[22],[23],[24] Yamazaki et al .[sup][24] recruited 24 patients with thoracic myelopathy due to ossification of the posterior longitudinal ligament (OPLL), all of whom underwent posterior decompression (PD), and found the incidence of CSFL was 4.2%.
Diagnosis and surgical management of cervical ossification of the posterior longitudinal ligament. Spine J 2002;2:436-49.
Kimura, "Ossification of the posterior longitudinal ligament in not only the cervical spine, but also other spinal regions: analysis using multidetector computed tomography of the whole spine," Spine, vol.
Ossification of the posterior longitudinal ligament may result in cervical spinal stenosis, which finally causes cervical myelopathy or radiculopathy.
(7) The critical involvement of overactive bone morphogenetic protein (BMP) signaling in ectopic bone formation is well-established, and several studies have identified BMP2 and BMP4 as susceptible genes for the ossification of the posterior longitudinal ligament. (8) Following transforming growth factor-[sz]/BMP induction, the Smad and p38 mitogen-activated protein kinase pathways converge at the runt-related transcription factor 2 ( RUNX2 ) gene to control mesenchymal precursor cell differentiation.