[Correction of XXXX of the cervical spine in @entity1691 using pedicle subtraction osteotomy of the seventh cervical vertebra].

@entity1 @entity21063 @entity2003 @entity190 @entity16 @entity1691 @entity4048 @entity85
PURPOSE OF THE STUDY The aim of the study is to present the technique of pedicle subtraction osteotomy (PSO) of the seventh cervical vertebra (C7) for correction of @entity2003 of the cervicothoracic junction (C/Th) in @entity1 with severe @entity1691 ( @entity1691 ).. MATERIAL AnD METHODS The PSO technique for correction of @entity2003 of the C/Th spine was used in fie @entity1 with the aim to restore their ability of horizontal vision. The follow-up in all @entity1 lasted two years at least. Clinical assessment of treatment results was based on the @entity1 ' neurological status and their satisfaction with the correction achieved. Improvement in a vertical 2) line of sight was evaluated using the angle measured between the forehead-chin line and the vertical ( @entity21063 angle) in a lateral view photograph of the standing @entity1 . The achieved correction of @entity85 was assessed by comparing the pre-operative Cobb's angle between the second cervical and the fourth thoracic vertebra with the post-operative one. RESULTS The average operative time was 4 hours (range, 3.5 to 5 h). The average @entity190 was 1600 ml (range, 800 to 2100 ml). On the average, the @entity21063 angle was reduced by 45.2   and Cobb's angle was corrected) by 54.6  . All @entity1 were satisfid with the degree of correction achieved and reported alleviation of @entity4048 . none of the @entity1 showed any signifiant loss of @entity16 at two-year follow-up. DISCUSSIOn The theoretical and technical principles of corrective osteotomy at the C7 level performed for @entity2003 of the spine at the C/Th junction are presented in our group of @entity1 . Our results give support to the superiority of instrumented PSO used currently over the previous techniques. In accordance with the relevant literature data, attention is drawn to a relatively higher risk of this procedure in comparison with corrective surgery performed at the other spinal levels. COnCLUSIOnS Corrective osteotomy of a @entity2003 at the C/Th spine level in @entity1691 @entity1 involves a complex reconstructive surgical procedure. The PSO technique reduces the risk of injury to the visceral structures ventral to the spine, and provides optimal conditions for bone healing at the site of vertebral body resection. If the @entity1 heals well, a successful PSO procedure will markedly improve the quality of his/her life. Key words: corrective osteotomy, cervicothoracic, kyphosis, @entity1691 .
