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Rod Angulation Relationship with Thoracic Kyphosis after Adolescent Idiopathic Scoliosis Posterior Instrumentation

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Title: Rod Angulation Relationship with Thoracic Kyphosis after Adolescent Idiopathic Scoliosis Posterior Instrumentation
Authors: boissiere, louis, GUEVARA VILLAZON, FERNANDO, alanay, ahmet, Kleinstück, Frank, bourghli, anouar, Pellise, Ferran
Contributors: Institut Català de la Salut, Boissiere L, Guevara-Villazon F ELSAN, Polyclinique Jean Villar, Bruges, France. Bourghli A Spine Surgery Department, King Faisal Specialist Hospital and Research Center, Saudi Arabia. Pellisé F Unitat de Recerca de la Columna Vertebral, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Alanay A Department of Orthopaedics and Traumatology, Acibadem University School of Medicine, Istanbul, Turkey. Kleinstück F Research and Development, Schulthess Klinik, Zurich, Switzerland, Vall d'Hebron Barcelona Hospital Campus
Source: Scientia
Publisher Information: MDPI
Publication Year: 2023
Subject Terms: Escoliosi - Cirurgia, Artrodesi, Cifosi - Cirurgia, DISEASES::Musculoskeletal Diseases::Bone Diseases::Spinal Diseases::Spinal Curvatures::Scoliosis, Other subheadings::Other subheadings::Other subheadings::/surgery, DISEASES::Musculoskeletal Diseases::Bone Diseases::Spinal Diseases::Spinal Curvatures::Kyphosis, ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT::Equipment and Supplies::Prostheses and Implants::Internal Fixators::Bone Screws::Pedicle Screws, AND EQUIPMENT::Surgical Procedures, Operative::Orthopedic Procedures::Arthrodesis::Spinal Fusion, ENFERMEDADES::enfermedades musculoesqueléticas::enfermedades óseas::enfermedades de la columna vertebral::desviaciones de la columna vertebral::escoliosis, Otros calificadores::Otros calificadores::Otros calificadores::/cirugía, ENFERMEDADES::enfermedades musculoesqueléticas::enfermedades óseas::enfermedades de la columna vertebral::desviaciones de la columna vertebral::cifosis, TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS::equipos y suministros::prótesis e implantes::fijadores internos::tornillos óseos::tornillos pediculares, DIAGNÓSTICOS Y TERAPÉUTICOS::intervenciones quirúrgicas::procedimientos ortopédicos::artrodesis::fusión vertebral
Description: Adolescent idiopathic scoliosis; Predictive medicine; Rod contour ; Escoliosis idiopática del adolescente; Medicina predictiva; Contorno de varilla ; Escoliosi idiopàtica de l'adolescent; Medicina predictiva; Contorn de vareta ; Introduction: Surgery to correct spinal deformities in scoliosis involves the use of contoured rods to reshape the spine and correct its curvatures. It is crucial to bend these rods appropriately to achieve the best possible correction. However, there is limited research on how the rod bending process relates to spinal shape in adolescent idiopathic scoliosis surgery. Methods: A retrospective study was conducted using a prospective multicenter scoliosis database. This study included adolescent idiopathic scoliosis patients from the database who underwent surgery with posterior instrumentation covering the T4 to T12 segments. Standing global spine X-rays were used in the analysis. The sagittal Cobb angles between T5 and T11 were measured on the spine. Additionally, the curvature of the rods between T5 and T11 was measured using the tangent method. To assess the relationship between these measurements, the difference between the dorsal kyphosis (TK) and the rod kyphosis (RK) was calculated (ΔK = TK − RK). This study aimed to analyze the correlation between ΔK and various patient characteristics. Both descriptive and statistical analyses were performed to achieve this goal. Results: This study encompassed a cohort of 99 patients, resulting in a total of 198 ΔK measurements for analysis. A linear regression analysis was conducted, revealing a statistically significant positive correlation between the kyphosis of the rods and that of the spine (r = 0.77, p = 0.0001). On average, the disparity between spinal and rod kyphosis averaged 5.5°. However, it is noteworthy that despite this modest mean difference, there was considerable variability among the patients. In particular, in 84% of cases, the concave rod exhibited less kyphosis than the spine, whereas the convex rod displayed greater ...
Document Type: article in journal/newspaper
File Description: application/pdf
Language: English
Relation: Children;11(1); https://doi.org/10.3390/children11010029; https://hdl.handle.net/11351/11060; 001149124400001
DOI: 10.3390/children11010029
Availability: https://hdl.handle.net/11351/11060
https://doi.org/10.3390/children11010029
Rights: Attribution 4.0 International ; http://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/openAccess
Accession Number: edsbas.633617BA
Database: BASE
Description
Abstract:Adolescent idiopathic scoliosis; Predictive medicine; Rod contour ; Escoliosis idiopática del adolescente; Medicina predictiva; Contorno de varilla ; Escoliosi idiopàtica de l'adolescent; Medicina predictiva; Contorn de vareta ; Introduction: Surgery to correct spinal deformities in scoliosis involves the use of contoured rods to reshape the spine and correct its curvatures. It is crucial to bend these rods appropriately to achieve the best possible correction. However, there is limited research on how the rod bending process relates to spinal shape in adolescent idiopathic scoliosis surgery. Methods: A retrospective study was conducted using a prospective multicenter scoliosis database. This study included adolescent idiopathic scoliosis patients from the database who underwent surgery with posterior instrumentation covering the T4 to T12 segments. Standing global spine X-rays were used in the analysis. The sagittal Cobb angles between T5 and T11 were measured on the spine. Additionally, the curvature of the rods between T5 and T11 was measured using the tangent method. To assess the relationship between these measurements, the difference between the dorsal kyphosis (TK) and the rod kyphosis (RK) was calculated (ΔK = TK − RK). This study aimed to analyze the correlation between ΔK and various patient characteristics. Both descriptive and statistical analyses were performed to achieve this goal. Results: This study encompassed a cohort of 99 patients, resulting in a total of 198 ΔK measurements for analysis. A linear regression analysis was conducted, revealing a statistically significant positive correlation between the kyphosis of the rods and that of the spine (r = 0.77, p = 0.0001). On average, the disparity between spinal and rod kyphosis averaged 5.5°. However, it is noteworthy that despite this modest mean difference, there was considerable variability among the patients. In particular, in 84% of cases, the concave rod exhibited less kyphosis than the spine, whereas the convex rod displayed greater ...
DOI:10.3390/children11010029