Related Experiment Video
Updated: Aug 5, 2026

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Surgical Approach and Complications of Stand-alone Lateral Trans-Psoas Interbody Fusion
Published on: February 14, 2025
Clinical and Radiological Outcomes of Single-Level, Stand-Alone LLIF Without Supplemental Posterior Fixation: A
Grzegorz Guzik1, Dariusz Sowa2, Dawid Merkiel2
1Department of Orthopaedic Oncology, Subcarpatian Oncology Centre, 36-200 Brzozow, Poland.
Medicina (Kaunas, Lithuania)
|July 28, 2026
Summary
This study demonstrates that a modified lateral lumbar approach for spinal fusion significantly improves patient function, reduces pain, and enhances quality of life. The minimally invasive technique also shows positive radiographic outcomes, increasing spinal canal area and disc height.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Spinal Surgery
Background:
- Degenerative disc disease is a common cause of low back pain.
- Traditional lumbar fusion approaches can involve significant muscle disruption.
- A modified lateral lumbar approach offers a minimally invasive alternative for lumbar decompression and fusion.
Purpose of the Study:
- To evaluate the efficacy of a novel modified lateral lumbar approach for single-level lumbar interbody fusion.
- To assess clinical and radiographic outcomes in patients undergoing this procedure.
Main Methods:
- A prospective study included 38 patients with single-level L1-L5 degenerative disc disease.
- Patients underwent lumbar interbody fusion using a modified lateral lumbar surgical approach.
- Clinical outcomes (Karnofsky Performance Scale, Oswestry Disability Index, EQ-VAS, VAS) and radiographic parameters (disc height, spinal canal area) were assessed pre- and post-operatively.
Main Results:
- Significant improvements were observed in functional status, quality of life, and pain reduction.
- Radiographic analysis showed a significant increase in mean disc height (8.2 mm to 12.2 mm) and spinal canal cross-sectional area.
- Reduction in disc herniation width and enlargement of intervertebral foramina were noted, with no neurovascular complications.
Conclusions:
- The modified lateral lumbar approach effectively restores intervertebral disc height and increases spinal canal and neuroforaminal dimensions.
- Patients experienced substantial functional improvement and pain relief.
- The approach appears safe, with no reported neurological or vascular complications, warranting further investigation.

