ArticleScientific reports2025
Radiologic and clinical outcomes of combining pedicle subtraction osteotomy and Smith-Peterson osteotomy in correcting severe ankylosing spondylitis kyphosis.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.
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Who cites it
3 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Thoracic pedicle Subtraction osteotomies: a systematic review of indications, correction magnitudes, and safety profile.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Pooled it
- Interbody cage use on successful spinal correction in pedicle subtraction osteotomy for adult spinal deformity surgery: a systematic review and meta-analysis of comparative studies.Spine deformity · 2026Pooled it
- Advancements in sagittal alignment parameters and management of adult spine deformities.Journal of spine surgery (Hong Kong) · 2026Review
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5 authors.
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Abstract
The aim of this study was to explore the validity and safety of the combination of one-level pedicle subtraction osteotomy (PSO) and one-level Smith-Petersen osteotomy (SPO) in correcting severe ankylosing spondylitis kyphosis. Twenty-five AS patients undergoing one-level PSO and one-level SPO with a minimum of 2-year follow-up were included. Radiographical analyses included T5-T12 kyphosis (TK), L1-S1 lordosis (LL), global kyphosis (GK), osteotomized vertebral angle (OVA), sagittal vertical axis (SVA) and pelvic parameters. The computed tomographic (CT) scans of the spine were used to measure the aortic diameter and length. Clinical outcomes were evaluated by Oswestry Disability Index (ODI) questionnaire. The mean correction of OVA at PSO level and SPO level was 33.6° ± 9.2° and 26.0° ± 13.2° respectively. An average correction of 69.3° ± 23.2° in GK was achieved. The mean operation time was 372.6 ± 60.1 min and the estimated blood loss averaged 1790.4 ± 953.3 ml. The mean increase of aortic length after surgery was 3.6 cm. An average decrease of 0.25 cm in aortic diameter at the PSO level was observed after surgery. There was no significant difference in aortic diameter at the SPO level between pre- and post-operation. ODI was improved from 30.2 ± 19.3 before surgery to 15.5 ± 13.9 at the last visit. The combination of one-level SPO and one-level PSO could achieve satisfactory correction outcomes in AS patients with severe kyphosis (GK ≥ 80°) needing a correction of > 60°.
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