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Degenerative Disc Disease ll: Pathophysiology01:23

Degenerative Disc Disease ll: Pathophysiology

The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...

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Development of Modic Changes After Percutaneous Endoscopic Transforaminal Lumbar Discectomy: From Risk Analysis to

Lei Li1, Chao Wang1, Hao Zhang1

  • 1The Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China.

Journal of Pain Research
|December 23, 2024
PubMed
Summary
This summary is machine-generated.

Modic changes (MC) occur in 24.8% of patients one year after percutaneous endoscopic transforaminal lumbar discectomy (PETD). Risk factors include disc degeneration, instability, and patient-specific factors, informing surgical optimization.

Keywords:
Modic changeslumbar disc diseasepercutaneous endoscopic transforaminal discectomyrisk analysis

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Area of Science:

  • Spinal surgery
  • Radiology
  • Orthopedics

Background:

  • Modic changes (MC) are common findings after spinal surgery.
  • Percutaneous endoscopic transforaminal lumbar discectomy (PETD) is a minimally invasive procedure for disc herniation.
  • Understanding postoperative MC is crucial for evaluating surgical outcomes.

Purpose of the Study:

  • To investigate the incidence of Modic changes (MC) within one year post-PETD.
  • To identify and analyze risk factors associated with MC development after PETD.
  • To develop a predictive model for postoperative MC.

Main Methods:

  • Retrospective cohort study of 538 patients undergoing PETD for lumbar disc herniation.
  • Evaluation of preoperative radiographic parameters and perioperative indicators.
  • Binary logistic regression and nomogram development for predictive modeling, with gender-specific analysis.

Main Results:

  • The incidence of MC one year post-PETD was 24.8%.
  • Identified risk factors include symptom duration, disc degeneration, reduced disc height, endplate concavity, instability, and lumbar-sacral fusion.
  • Gender-specific risk factors (menopause, herniation type in females; cholesterol in males) and high predictive model performance (AUCs ranging from 0.820 to 0.911) were observed.

Conclusions:

  • Several factors predict Modic changes after PETD.
  • A visualized nomogram aids in predicting MC risk.
  • Optimizing surgical strategies based on these findings can improve PETD efficacy.