Related Experiment Video
Updated: May 1, 2026
06:45
Modified Posterior Vertebral Column Resection for Patients with Thoracolumbar Kyphotic Deformity
Published on: September 16, 2022
2.7K
Floating spine after pedicle subtraction osteotomy for post-traumatic kyphosis
Hideki Shigematsu1, Munehisa Koizumi, Jin Iida
1Department of Orthopaedic Surgery, Nara Medical University, Kashihara, Nara, 6348522, Japan, shideki@naramed-u.ac.jp.
Summary
Pedicle subtraction osteotomy (PSO) can correct spinal deformities but carries risks. A patient developed a floating spine after PSO for post-traumatic kyphosis, requiring further surgery.
Area of Science:
- Spine surgery
- Orthopedic surgery
- Deformity correction
Background:
- Pedicle subtraction osteotomy (PSO) is used for spinal deformities.
- Initially for ankylosing spondylitis, now also for post-traumatic kyphosis.
- This study reports a complication after PSO for post-traumatic kyphosis.
Observation:
- A 50-year-old male with post-traumatic kyphosis at T12 underwent PSO.
- One year post-surgery, he developed a floating spine (T12-L1) and severe pain.
- This occurred despite initial bony union and instrument removal.
Findings:
- The floating spine complication led to inability to walk or stand for prolonged periods.
- Anterior fusion at T12-L1 was required to address the complication.
- Post-anterior fusion, severe back pain resolved.
Implications:
- This case highlights a potential pitfall of pedicle subtraction osteotomy.
- Surgeons must be aware of and mitigate risks associated with PSO.
- Careful patient selection and surgical planning are crucial for optimal outcomes.
