Sagittal Alignment of the Lumbar Spine

Area of Science:

• Orthopedics
• Spinal Surgery
• Biomedical Engineering

Background:

• Lumbar spine alignment is crucial for segmental motion, degenerative pathology, and quality of life.
• The interplay between lumbar lordosis and pelvic incidence is a key factor in spinal disorder development.

Purpose of the Study:

• To review the relationship between lumbar and pelvic alignment and lumbar spine pathology.
• To define goals for optimal alignment in reconstructive spinal surgery.
• To discuss strategies for effective spinal realignment.

Main Methods:

• Literature review focusing on lumbar spine alignment and pelvic parameters.
• Analysis of the pathogenetic mechanisms of spinal disorders related to alignment.
• Synthesis of surgical goals and realignment techniques.

Main Results:

• Established the predictive role of lumbar lordosis and pelvic incidence in spinal disorders.
• Highlighted the impact of alignment on disk degeneration, spondylolisthesis, and adjacent segment degeneration.
• Identified key considerations for reconstructive surgery.

Conclusions:

• Lumbar and pelvic alignment are critical determinants of lumbar spine health.
• Achieving appropriate alignment is essential for successful reconstructive spinal surgery.
• Effective realignment strategies can mitigate spinal pathology and improve patient outcomes.