Atlantoaxial and Craniocervical Arthrodesis in Children

Ferri-de-Barros, Fabio; Little, David; Bridge, Corinne; Cummine, John; Cree, Andrew K.

doi:10.1097/brs.0b013e3181afea7d

Cited by 15 publications

(7 citation statements)

References 5 publications

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“…In comparison to the data obtained by Ferri et al 2 in 2010 where 24% of the C2 pedicles and 65% of C2 laminas were considered suitable for the insertion of 3.5mm screws, we had a higher percentage of cases in which such passage would be anatomically possible.…”

Section: Discussionmentioning

confidence: 50%

“…Wiring techniques such as those of Brooks or Gallie are relatively simple procedures, yet have the disadvantage of requiring rigid immobilization after surgery, besides presenting high rates of pseudarthrosis. 2,3 The Jeannert and Magerls 4 transarticular screw fixation technique and the Harms and Melcher. 5 C1 lateral mass and C2 pedicle technique are more commonly used today.…”

Section: Discussionmentioning

confidence: 99%

“…Wiring techniques such as those of Brooks or Gallie are relatively simple procedures, yet have the disadvantage of requiring rigid immobilization after surgery, besides presenting high rates of pseudarthrosis (up to 30%). 2,3 With the development of the synthesis materials, techniques arose that allow more stable fixation. The two methods most often used today are: the Jeannert and Magerls 4 transarticular screw fixation technique and the Harms and Melcher C1 lateral mass and C2 pedicle technique.…”

Section: Introductionmentioning

confidence: 99%

“…Ferri de Barros et al 2 conducted a tomographic study comparing the adequacy of fixation screws in C2 pedicles and laminas in children from two to eleven years of age, and obtained data that enable them to infer that the C2 lamina represents a viable point of fixation for C1-C2 and craniocervical arthrodesis in children, 6 which would allow the application of the Wright technique in children.…”

Section: Introductionmentioning

confidence: 99%

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Análise tomográfica dos parâmetros anatômicos do áxis de crianças

et al. 2012

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ObjectiveTo carry out an anatomical study of the axis with the use of computed tomography (CT) in children aged from two to ten years, measuring the lamina angle, lamina and pedicle length and thickness, and lateral mass length.MethodsSixty-four CTs were studied from patients aged 24 to 120 months old, of both sexes and without any cervical anomaly. The measurements obtained were correlated with the data on age and sex of the patients. Statistical analysis was performed using the Students "t" tests.ResultsWe found that within the age range 24-48 months, 5.5% of the lamina and 8.3% of the pedicles had thicknesses of less than 3.5mm, which is the minimum thickness needed for insertion of the screw. Between 49 and 120 months, there were no lamina thicknesses of less than 3.5mm, and 1.2% of the pedicle thicknesses were less than 3.5mm values. Neither of the age groups had any lamina and pedicle lengths of less than 12mm, or lateral mass lengths greater than 12mm.ConclusionThe analysis of the data obtained demonstrates that most of the time, is possible to use a 3.5mm pedicle screw in the laminas and pedicles of the axis in children. Level of Evidence: II, Development of diagnostic criteria in consecutive patients.

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 99%

“…Wiring techniques such as those of Brooks or Gallie are relatively simple procedures, yet have the disadvantage of requiring rigid immobilization after surgery, besides presenting high rates of pseudarthrosis (up to 30%). 2,3 With the development of the synthesis materials, techniques arose that allow more stable fixation. The two methods most often used today are: the Jeannert and Magerls 4 transarticular screw fixation technique and the Harms and Melcher C1 lateral mass and C2 pedicle technique.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Análise tomográfica dos parâmetros anatômicos do áxis de crianças

et al. 2012

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“…Согласно биомеханическим исследованиям, данная фиксация по жесткости не уступает транспедикулярной [5,20], даже при удалении 50 % кортикальной пластины дуги С 2 [20]. При этом технически интерламинарный способ введения винта более прост и особенно хорош в детском возрасте [3,7,11,26,30,38,39]. По данным клинических наблюдений, формирование спондилодеза при применении интерламинарной фиксации в С 2 достигает 97,6 % [9].…”

Section: рисunclassified

Задняя Фиксация Краниоцервикального Перехода С Использованием Винтовых Конструкций

Губин¹,

Burtsev²

2014

Хирургия позвоночника 2-2014

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Feasibility of 3.5 mm C2 pedicle screws in children: A computerized tomography analysis

Chen

Cen

et al. 2022

Clinical Anatomy

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There have been no studies with large sample sizes on growth of the pedicle of C2 in children. In the present study we measured the pedicle of C2 through computed tomography (CT) imaging in children aged less than 14 years and evaluated the suitability of the 3.5‐mm screw for the pedicle in such children. The study was conducted on CT morphometric images of 420 children in our hospital between June 2018 and June 2020. The width (D1), length (D2), height (D3), inclination angle (α), and tail angle (β) of the C2 pedicle were measured. One‐way analysis of variance and Student's t test were used for statistical analyses. The least‐square method was used to analyze the curve fitting the trend of anatomical change in the pedicle. The largest degree of goodness of fit determined the best‐fitting curve. The size of the pedicle of C2 increased with age. The median ranges of D1, D2, D3, α, and β were 3.312–5.431 mm, 11.732–23.645 mm, 3.597–8.038 mm, 32.583°–36.640°, and 24.867°–31.567°, respectively. The curves fitting the trends of D1 and D3 were power functions, whereas D2 was fitted by a logarithmic curve. However, no curve fitted α or β. A 3.5‐mm screw can be placed in the pedicle of C2 in children aged more than 1 year. The growth and development trend of this pedicle can provide an anatomical reference for deciding on posterior cervical surgery and for selecting and designing pedicle screws for children.

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Atlantoaxial and Craniocervical Arthrodesis in Children

Abstract: C2 laminae represent a viable fixation point for C1-C2 and craniocervical arthrodesis in children. This information can be useful for preoperative planning.

Cited by 15 publications

References 5 publications

Análise tomográfica dos parâmetros anatômicos do áxis de crianças

Análise tomográfica dos parâmetros anatômicos do áxis de crianças

Задняя Фиксация Краниоцервикального Перехода С Использованием Винтовых Конструкций

Feasibility of 3.5 mm C2 pedicle screws in children: A computerized tomography analysis

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