Undetected low bone mineral density in patients undergoing lumbar fusion surgery-prevalence and risk factors.

Background: Sufficient bone quality is a prerequisite for low complication rates and satisfactory outcomes in lumbar fusion surgery (LFS). Low bone mineral density (BMD), including osteoporosis and osteopenia, is linked to adverse postoperative outcomes. Despite reports of a high prevalence of undiagnosed osteoporosis, it is uncertain which risk factors should guide preoperative BMD screening in LFS.

Risk Factors for Postoperative Non-Satisfaction despite ODI Improvement in Patients undergoing Elective Lumbar Surgery.

Study Design: Secondary analysis of prospective study.

Objective: To assess the risk factors for postoperative non-satisfaction despite improvement in the Oswestry Disability Index (ODI) two years after elective lumbar surgery.

Background: The ODI and postoperative satisfaction are important markers of postoperative success.

Impact of Lumbar Degenerative Changes on Vertebral Bone Strength: A Finite Element Analysis.

Assessing the bone condition in patients with spinal disease is clinically valuable. However, evaluating bone strength in the presence of spine degenerative changes is challenging. Quantitative computed tomography (QCT) and finite element analysis (FEA) have been proposed as methods for more accurate bone quality assessment.

Risk factors for progression of nucleus pulposus degeneration in the lumbar intervertebral disc: a retrospective analysis using the disc signal intensity index.

Background/context: Degenerative disc changes are associated with low back pain and negatively impact quality of life. Disc degeneration process usually starts with nucleus pulposus change. There is uncertainty about the risk factors associated with the progression of disc nucleus degeneration due to the lack of an objective evaluation method.

Quantitative assessment of cervical disc degeneration using disc signal intensity index.

Background/context: The assessment of disc degeneration remains a significant challenge in clinical research. Pfirrmann grade is a frequently used classification for lumbar disc degeneration on MRI. However, there has been no gold standard for cervical spine disc degeneration.