Lordosis loss in degenerative spinal conditions

Area of Science:

• Spine surgery
• Orthopedic surgery
• Degenerative spine disease

Background:

• Spinopelvic balance and normal lordosis ranges are documented.
• Degenerative conditions can cause localized loss of lumbar lordosis.
• Limited data exists on lordosis magnitude in specific degenerative lumbar pathologies.

Purpose of the Study:

• To determine if common degenerative lumbar spine conditions have predictable sagittal profiles.
• To analyze the associated range of lordosis in these conditions.
• To investigate the variability of lordosis loss in specific pathologies.

Main Methods:

• Retrospective analysis of prospectively collected radiographic data.
• Evaluation of spinopelvic parameters including pelvic incidence, sacral slope, pelvic tilt, and lordosis.
• Inclusion of lumbar degenerative spondylolisthesis (L3/4, L4/5), L5/S1 degenerative disc disease, and L5/S1 isthmic spondylolisthesis.

Main Results:

• Segmental lordosis changes were normally distributed for most conditions, except L5/S1 isthmic spondylolisthesis.
• L5/S1 degenerative disc disease was observed in younger patients (mean age 37).
• Degenerative spondylolisthesis at L3/4 and L4/5 affected older patients (mean ages ~69).

Conclusions:

• Most degenerative spinal pathologies result in a normally distributed range of deformity.
• Tailored, individualized surgical plans are recommended for each patient.
• Universal treatment guidelines for degenerative lumbar spine conditions should be applied cautiously.