| Autor: |
Ryan H, Guzek, Stuart L, Mitchell, Arielle R, Krakow, Nanjundappa S, Harshavardhana, Eric J, Sarkissian, John M, Flynn |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Spine deformity. 9(6) |
| ISSN: |
2212-1358 |
| Popis: |
Pedicles on the concave side of the proximal thoracic (PT) curve in adolescent idiopathic scoliosis (AIS) patients with Lenke II and IV deformities tend to be narrow and dysplastic, making pedicle screw (PS) insertion challenging. The aim of this study was to evaluate the feasibility for PS placement in these patients using pedicle chord length, diameter, and channel morphology.In this retrospective study, 56 consecutive AIS patients with Lenke II or IV curves who underwent instrumented posterior spinal fusion (PSF) were studied. The mean age at surgery was 14.8 years and the mean PT curve measured 45°. Two independent investigators evaluated all visible pedicles from TTwo hundred and sixty-eight concave and 264 convex pedicles were measured. The mean 'd' of the concave pedicles at TAlmost half of all concave pedicles have morphologic characteristics that make them too small to accommodate a PS. Though PSs could be inserted using an in-out-in technique in these patients, alternative fixation anchors may improve strength and safety. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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