Miniopen pedicle subtraction osteotomy: surgical technique and initial results.

Area of Science:

• Spine surgery
• Orthopedic surgery
• Minimally invasive surgical techniques

Background:

• Advancements in minimally invasive surgery (MIS) necessitate techniques to address lumbar lordosis and sagittal balance.
• Restoring spinal alignment is crucial for treating various spinal diseases.

Purpose of the Study:

• To outline a novel mini-open pedicle subtraction osteotomy technique.
• To evaluate the initial clinical and radiographic outcomes of this MIS approach for spinal deformity.

Main Methods:

• The technique combines MIS interbody fusion, percutaneous screw fixation, and facet fusion.
• A selective opening is utilized for the pedicle subtraction osteotomy site.
• This integrated approach aims for safe and efficient deformity correction.

Main Results:

• The mini-open technique demonstrated significant restoration of lumbar lordosis.
• An average increase of 29.2° in lumbar lordosis was achieved (range: 17°-44°).

Conclusions:

• The described mini-open pedicle subtraction osteotomy is a viable MIS technique.
• It allows for effective correction of lumbar lordosis and sagittal balance abnormalities.
• This approach offers a safe and efficient option for spinal deformity treatment.