Biomechanical properties of lumbar endplates and their correlation with MRI findings of lumbar degeneration.

How stiffness and strength of the human lumbar endplate vary with location, spinal level, and its correlation with MRI findings of lumbar degeneration, has not been reported in detail. 27 lumbar spines (16 male, 11 female, 31-49yrs) were harvested from cadavers without history of lumbar lesion or trauma. Disc and endplate degeneration was evaluated from MRI.

Comparison of modic changes in the lumbar and cervical spine, in 3167 patients with and without spinal pain.

Background Context: There are few comparisons of Modic changes (MCs) in the lumbar and cervical spine.

Purpose: Compare the prevalence of MCs in the lumbar and cervical spine, and determine how MC prevalence depends on spinal pain, age, disc degeneration, spinal level, and the presence or absence of kyphosis.

Study Design: Retrospective clinical survey.

Spontaneous resorption of lumbar disc herniation is less likely when modic changes are present.

Study Design: A retrospective survey on 85 consecutive patients with primary single-level lumbar disc herniation (LDH).

Objective: To investigate associations between Modic changes (MCs) and the likelihood of resorption of herniated lumbar intervertebral discs.

Summary Of Background Data: Spontaneous resorption of LDH has been demonstrated, whereas the mechanisms are unclear.

Basivertebral foramen could be connected with intravertebral cleft: a potential risk factor of cement leakage in percutaneous kyphoplasty.

Background Context: Among different types of cement leakage in percutaneous kyphoplasty (PKP) for osteoporotic vertebral body compression fractures, leaks into the spinal canal are considered to be the most common complication. One potential structure causing this type of cement leakage is the potential connection between the basivertebral foramen and the intravertebral cleft, which is revealed clearly on magnetic resonance (MR) images, but is often ignored in the literature.

Purpose: The purpose of this study is to assess the incidence rate of different types of cement leakage in PKP with or without intravertebral clefts and to determine whether the basivertebral foramen could be connected to the intravertebral cleft.