ArticleOrthopaedic surgery2026
Robot-Assisted Stereotactic Osteotomy Technique for Correcting Thoracolumbar Kyphotic Deformity in Ankylosing Spondylitis: A Technical Note.
Article in Orthopaedic surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Decision-Making in the Surgical Management of Rigid Congenital Spinal Deformities: The Role of Vertebral Column Resection and Less Invasive Alternatives.Journal of clinical medicine · 2026Article
- Robot-Assisted Stereotactic Osteotomy Technique for Correcting Thoracolumbar Kyphotic Deformity in Ankylosing Spondylitis: A Technical Note.Orthopaedic surgery · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
Abstract
objectivePrecise and reproducible control of wedge resection remains challenging in osteotomy correction for ankylosing spondylitis-related rigid kyphosis, and reports of robotic stereotactic execution beyond pedicle screw placement are limited. This technical note describes the operative workflow of robot-assisted stereotactic osteotomy (RASO), focusing on quantitative wedge planning and stereotactic execution feasibility.
methodsThe RASO technique and operative workflow are described. Patients with type II ankylosing spondylitis-related thoracolumbar deformity who underwent single-level three-column RASO between May and November 2023 were analyzed. Preoperative planning was performed using Surgimap wedge simulation with ratio-of-closure-based prediction, and stereotactic osteotomy trajectories were executed using the Mazor X Stealth Edition system. Perioperative parameters and immediate postoperative radiographic findings were descriptively assessed to evaluate the feasibility and reliability of the proposed operative workflow.
resultsThis technique was successfully implemented in 15 patients. The mean operative duration was 304.2 ± 51.4 min, and the mean intraoperative blood loss was 486.7 ± 229.5 mL. Planning-execution concordance demonstrated acceptable agreement, with a maximal ratio-of-closure-related deviation of ≤ 5.18° and a mean difference of 0.2° between planned and achieved osteotomy Cobb angles. The mean thoracolumbar kyphosis (TLK) improved from 50.2° to 13.2°, the chin-brow vertical angle (CBVA) improved from 36.7° to 15.1°, the PT improved from 35.6° to 26.6°, and the sagittal vertical axis (SVA) improved from 207.6 to 93.7 mm. Three intraoperative durotomies occurred during the decompression phase; one patient developed delayed cerebrospinal fluid leakage. No neurological deficits, hardware failure, or mortality were observed. All patients achieved osseous fusion and demonstrated improvements in health-related quality of life measures.
conclusionsThis technical note demonstrates the technical feasibility and workflow reliability of robot-assisted stereotactic osteotomy for rigid ankylosing spondylitis-related thoracolumbar kyphotic deformity. Quantitative wedge planning can be reproducibly translated into robotic stereotactic intraoperative execution. Further studies are required to define the broader clinical role and potential applications of this technique.
trial registrationChinese Clinical Trial Registry: 2400090375.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.