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Updated: Jun 5, 2026
Modified Posterior Vertebral Column Resection for Patients with Thoracolumbar Kyphotic Deformity
Published on: September 16, 2022
Pedicle subtraction osteotomy for rigid kyphosis of the dorsolumbar spine
Ashok S Gavaskar1, T Naveen Chowdary
1Parvathy Ortho Hospital, Door No. 63A/44, Gandhi Road, Gill Nagar, Choolaimedu, Chennai, 600094 Tamil Nadu, India. gavaskar.ortho@gmail.com
Method:
Pedicle subtraction osteotomy is one of the well established and popular techniques for kyphosis correction. 52 patients with dorsolumbar kyphosis followed up for a minimum period of 2 years after pedicle subtraction osteotomy were assessed prospectively for clinico-radiological and functional outcomes. Unacceptable cosmesis and severe back pain were the chief complaints preoperatively.
Results:
The average kyphosis at last follow-up was 8.4° compared to preoperative kyphosis of 58°. Union at the osteotomy site was achieved in all patients, and there were no major neurological complications. All patients showed a significant improvement in all subsets of Scoliosis Research Society (SRS-30) outcome measures following the surgery.
Conclusion:
A greater degree of kyphosis correction (>40°) can be obtained with a single pedicle subtraction osteotomy at the dorsolumbar level with minimal neurological complications.
