الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Most idiopathic curves are lordotic or hypokyphotic in the thoracic region. The fact that a hypokyphotic thoracic spine coexists with a kyphosis in cervical spine in IS is well known. Sagittal balance has recently been the focus of studies aimed at understanding the correction force required for both coronal and sagittal malalignment. However, the correlation between cervical kyphosis (CK) and sagittal balance in patients with AIS has not been thoroughly investigated.
The aim of this work was to assess the sagittal balance of the cervical spine in adolescent idiopathic scoliosis.
Standing lateral and anteroposterior X-rays of the spine and pelvis of 30 patients with adolescent idiopathic scoliosis admitted to El-Hadra University Hospital from 2013 through 2017 were assessed, and spinopelvic parameters were drawn and measured using a computer software (protractor 1.1).
Patients were classified according to cervical alignment into four groups: cervical lordosis, straight neck, cervical kyphosis, and cervical sigmoid. They were also classified according to thoracic kyphosis apex into three groups: T3 or above, T4-T9, and T10 or below.
The present study revealed that 50% of patients with AIS have cervical lordosis, 30% have straight neck, 13.3% have cervical kyphosis, and only 6.7% have cervical sigmoid. the prevalence of cervical kyphosis is essentially different when compared with studies conducted by Canavese et al and Kimura et al.
The present study had found a significant correlation between CA and TK. Further more, a significant correlation was found between CA and PT.