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Sagittal slope angle of lateral atlantoaxial articulation is associated with the severity of basilar invagination with atlantoaxial dislocation and predicts reduction degree after surgery.
- Source :
-
BMC musculoskeletal disorders [BMC Musculoskelet Disord] 2024 Jul 24; Vol. 25 (1), pp. 577. Date of Electronic Publication: 2024 Jul 24. - Publication Year :
- 2024
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Abstract
- Objective: To investigate (1) lateral atlantoaxial articulation (LAA) morphology in patients with basilar invagination (BI) with atlantoaxial dislocation (AAD) and healthy individuals and its relationship with the severity of dislocation and (2) the effect of the LAA morphology on reduction degree (RD) after surgery.<br />Methods: In this retrospective propensity score matching case-control study, imaging and baseline data of 62 patients with BI and AAD from 2011 to 2022 were collected. Six hundred thirteen  participants without occipitocervical junctional deformity served as controls. Logistic regression and receiver operating characteristic (ROC) curve were used for analysis.<br />Results: The age, BMI and sex did not differ significantly between the two groups after propensity score matching. Sagittal slope angle (SSA) and coronal slope angle (CSA) was lower and greater, respectively, in the patient group than in the control group. A negative SSA value usually indicates anteverted LAA. Regression analysis revealed a significant negative correlation between SSA and severity of dislocation. However, no relationship was found between CSA and the severity of dislocation. The multivariate logistic regression analysis revealed that minimum-SSA emerged as an independent predictor of satisfactory reduction (RD ≥ 90%). The ROC curve demonstrated an area under the curve of 0.844, with a cut-off value set at -40.2.<br />Conclusion: SSA in patients group was significantly smaller and more asymmetric than that in the control group. Dislocation severity was related to SSA but not to CSA. Minimum-SSA can be used as a predictor of horizontal RD after surgery.<br /> (© 2024. The Author(s).)
- Subjects :
- Humans
Male
Female
Retrospective Studies
Adult
Middle Aged
Case-Control Studies
Severity of Illness Index
Treatment Outcome
Platybasia diagnostic imaging
Platybasia surgery
Propensity Score
Young Adult
Spinal Fusion adverse effects
Tomography, X-Ray Computed
Atlanto-Axial Joint surgery
Atlanto-Axial Joint diagnostic imaging
Joint Dislocations surgery
Joint Dislocations diagnostic imaging
Joint Dislocations etiology
Subjects
Details
- Language :
- English
- ISSN :
- 1471-2474
- Volume :
- 25
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- BMC musculoskeletal disorders
- Publication Type :
- Academic Journal
- Accession number :
- 39049000
- Full Text :
- https://doi.org/10.1186/s12891-024-07696-4