Related Experiment Video
Updated: Sep 24, 2025
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Three-dimensional Navigation-guided, Prone, Single-position, Lateral Lumbar Interbody Fusion Technique
Published on: July 15, 2021
3.4K
Lateral Lumbar Interbody Fusion: Single Surgeon Learning Curve
Kevin C Jacob1, Madhav R Patel1, Michael C Prabhu1
1Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
World Neurosurgery
|May 5, 2022
Summary
Surgeons improve lateral lumbar interbody fusion outcomes with experience, reducing complications and recovery time. Patient safety is maintained during the learning curve, though early femoral nerve injury risk exists.
Area of Science:
- Neurosurgery
- Spine Surgery
- Surgical Education
Background:
- The learning curve for lateral lumbar interbody fusion (LLIF) impacts patient outcomes.
- Characterizing this curve is crucial for optimizing surgical training and patient safety.
Purpose of the Study:
- To define the LLIF surgical learning curve.
- To analyze perioperative and postoperative clinical parameter changes with increasing surgical experience.
Main Methods:
- A case series defined learning and proficient phases using regression analysis (patients 1-53 vs. 54-179).
- Muscle strength (hip-flexion, knee-extension) and sensory disturbances were assessed pre- and postoperatively.
- Patient-reported outcome measures were compared between learning and proficient cohorts.
Main Results:
- The proficient phase showed reduced operative time, blood loss, hospital stay, and narcotic use.
- Proficient patients had less disability at 6 weeks and 6 months, with overall better outcomes.
- Ipsilateral sensory disturbances and muscle weakness improved with experience.
Conclusions:
- The proficient LLIF phase demonstrates improved perioperative metrics and reduced complications.
- While early improvement in function is faster in the proficient phase, 2-year outcomes are similar.
- Patient safety is maintained during the learning phase, but femoral nerve injury risk is higher early on.
