Analysis of Three-Dimensional Navigated Lateral Lumbar Interbody Fusion

This is a single-center observational study designed to assess procedural characteristics and short-term clinical outcomes associated with navigation-assisted oblique lumbar interbody fusion (OLIF) performed as part of routine clinical care.

Adult patients with lumbar degenerative disease who underwent OLIF with navigation assistance were included. Navigation systems were utilized to assist interbody cage placement and percutaneous pedicle screw insertion. No experimental interventions, randomization, or deviations from standard clinical practice were performed.

Collected data included operative time, estimated blood loss, radiation exposure related to navigation procedures, and perioperative complications. Clinical outcomes such as back and leg pain and lumbar function were evaluated during routine postoperative follow-up visits at 1 and 3 months after surgery.

The purpose of this study is to describe the feasibility and short-term performance of navigation-assisted OLIF and to contribute clinical data regarding the application of navigation systems in minimally invasive lumbar fusion procedures.

Inclusion criteria

• Adult male and female patients aged 20 years or older with lumbar spine disease confirmed by clinical evaluation.
• Patients who are willing to undergo oblique lumbar interbody fusion (OLIF) via an anterior or oblique lumbar approach.
• Patients who have provided written informed consent in accordance with local regulatory requirements.

Exclusion criteria

• Patients who are currently participating in, or have participated within the past 6 months in, another clinical study involving an investigational procedure, device, or drug.
• Patients who, in the judgment of the principal investigator, have conditions that may impair their ability to provide written informed consent, such as psychiatric disorders or neurodegenerative diseases.
• Patients experiencing uncontrollable or unavoidable events, including but not limited to legally defined infectious diseases, pregnancy, severe accidental injury, or death.
• Patients who are unwilling or unable to comply with postoperative follow-up.