A posterior trans-intervertebral osteotomy with anterior support for kyphosis deformity secondary to ankylosing spondylitis: a technical note

BMC Musculoskeletal Disorders, 2025 · DOI: https://doi.org/10.1186/s12891-024-08260-w · Published: January 1, 2025

Simple Explanation

This study introduces a novel surgical technique, posterior trans-intervertebral osteotomy with anterior support (TIOAS), for correcting kyphosis in patients with ankylosing spondylitis. The technique involves accessing the spine through the intervertebral space and placing a cage in the anterior column to improve correction and stability. The study uses computer software to simulate the procedure, predict outcomes, and assist in preoperative planning, aiming to enhance the safety and effectiveness of kyphosis correction.

Study Duration

February 2021 to August 2023

Participants

Four patients with ankylosing spondylitis

Evidence Level

Not specified

Key Findings

1
Patients who underwent posterior trans-intervertebral osteotomy with anterior support achieved good clinical results with favorable correction rates and minimal estimated blood loss.
2
Patients with preoperative deficits improved their neurological status, and no complications were observed throughout the postoperative period.
3
Pain, self-image, and mental health in the SRS-22 demonstrated significant improvement at the final follow-up compared to preoperative values.

Research Summary

This study assessed the efficacy of posterior trans-intervertebral osteotomy with anterior support (TIOAS) in patients with ankylosing spondylitis using computer simulations for preoperative planning. The results showed favorable correction rates, minimal blood loss, improved neurological status, and significant improvements in pain, self-image, and mental health. The study concludes that posterior TIOAS is a potentially more secure method for correcting ankylosing spondylitis kyphosis, addressing limitations of conventional techniques.

Practical Implications

Enhanced Surgical Safety

The posterior TIOAS technique offers a potentially safer alternative to traditional methods for correcting kyphosis in ankylosing spondylitis.

Improved Correction and Stability

Anterior cage placement improves the orthopedic effect and prevents anterior spinal column collapse, enhancing overall spinal stability.

Preoperative Planning

Computer software simulation aids in surgical planning, predicting outcomes and minimizing risks associated with the procedure.

Study Limitations

1
The study’s limited sample size was a potential constraint.
2
A comparative analysis of the clinical outcomes between patients who underwent posterior TIOAS and those who underwent regular trans-intervertebral osteotomy is imperative.
3
Illustrating this innovative technique’s benefits for correction efficiency, complications, and anticipated blood loss.

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