Spinal Anesthesia for Geriatric Lumbar Spine Surgery: A Comparative Case Series

Area of Science:

• Anesthesiology
• Neurosurgery
• Geriatric Medicine

Background:

• Spinal anesthesia (SA) is an emerging alternative to general anesthesia (GA) for elective lumbar spine surgery.
• Limited research exists comparing SA and GA in elderly populations.
• This study evaluates the safety and efficacy of SA versus GA in patients aged 70 and older undergoing lumbar spine procedures.

Purpose of the Study:

• To determine if spinal anesthesia (SA) is a safe alternative to general anesthesia (GA) for lumbar spine surgery in elderly patients.
• To compare perioperative outcomes between SA and GA in this demographic.
• To identify potential benefits of SA in older adults undergoing elective spinal surgery.

Main Methods:

• Retrospective, consecutive case series of patients aged 70+ undergoing lumbar spine surgery.
• Comparison of demographics and perioperative outcomes between patients receiving SA and GA.
• Statistical analysis to control for confounding factors like age, sex, and BMI.

Main Results:

• Patients receiving SA were older, more frequently male, and had lower BMI than those receiving GA.
• SA was associated with significantly decreased estimated blood loss and intraoperative fluid requirements.
• SA led to shorter postanesthesia care unit (PACU) stays, lower maximum pain scores, and reduced odds of blood transfusion.
• No significant differences were observed in operative time, overall length of stay, nausea, or daily opioid consumption.
• Complication rates were similar between the SA and GA groups.

Conclusions:

• Spinal anesthesia (SA) is a safe and reasonable alternative to general anesthesia (GA) for elderly patients undergoing elective lumbar spine surgery.
• SA offers potential advantages including reduced blood loss, shorter PACU stays, and improved pain control.
• These findings support the consideration of SA for older adults undergoing lumbar spine procedures.