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Related Experiment Video

Updated: Nov 18, 2025

Surgical Approach and Complications of Stand-alone Lateral Trans-Psoas Interbody Fusion
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Single-Position Prone Transpsoas Lateral Interbody Fusion Including L4L5: Early Postoperative Outcomes.

Luiz Pimenta1, Gabriel Pokorny2, Rodrigo Amaral2

  • 1Institute of Spinal Pathology, São Paulo, Brazil; Department of Neurosurgery, University of California, San Diego, California, USA.

World Neurosurgery
|February 6, 2021
PubMed
Summary
This summary is machine-generated.

The prone transpsoas (PTP) approach for lumbar fusion is safe and effective for L4/5 degenerative spine pathologies. This technique shows a low rate of complications and new neurologic deficits in early outcomes.

Keywords:
InnovationL4L5Lateral lumbar interbody fusionNeurologic deficitsProne transpsoasSingle-position

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Area of Science:

  • Spine surgery
  • Minimally invasive techniques
  • Degenerative spine pathologies

Background:

  • Lateral lumbar interbody fusion (LLIF) revolutionized spine access via the psoas muscle.
  • Traditional LLIF has limitations.
  • A novel prone transpsoas (PTP) approach has been developed.

Purpose of the Study:

  • To analyze early outcomes of the PTP approach for degenerative spine pathologies at the L4/5 level.
  • To evaluate the safety and feasibility of PTP.

Main Methods:

  • Multicentric, retrospective, observational study.
  • Included patients undergoing PTP at L4/5 (max 3 levels, fixation to S1).
  • Primary outcomes: new neurologic deficits, complications. Secondary: surgery duration, blood loss.

Main Results:

  • 27 patients included, most had PTP at L4/5.
  • Mean surgery time: 182 minutes; mean transpsoas time: 29 minutes.
  • 1 motor deficit, 3 sensory deficits. 5 postoperative complications (1 access-related).

Conclusions:

  • Prone transpsoas (PTP) is a safe and feasible approach for the L4/5 disk.
  • PTP demonstrates a low rate of complications.
  • Low incidence of new-onset neurologic deficits observed with PTP.