Short segment pedicle screw instrumentation with an index level screw and cantilevered hyperlordotic reduction in the treatment of type-A fractures of the thoracolumbar spine

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Tarih

2014

Yazarlar

Köse, Kamil Çağrı
İnanmaz, Mustafa Erkan
Işık, Cengiz
Başar, Hakan
Çalışkan, İslam

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

British Editorial Soc Bone Joint Surgery

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

The purpose of this study was to evaluate and compare the effect of short segment pedicle screw instrumentation and an intermediate screw (SSPI+IS) on the radiological outcome of type A thoracolumbar fractures, as judged by the load-sharing classification, percentage canal area reduction and remodelling. We retrospectively evaluated 39 patients who had undergone hyperlordotic SSPI+IS for an AO-Magerl Type-A thoracolumbar fracture. Their mean age was 35.1 (16 to 60) and the mean follow-up was 22.9 months (12 to 36). There were 26 men and 13 women in the study group. In total, 18 patients had a load-sharing classification score of seven and 21 a score of six. All radiographs and CT scans were evaluated for sagittal index, anterior body height compression (%ABC), spinal canal area and encroachment. There were no significant differences between the low and high score groups with respect to age, duration of follow-up, pre-operative sagittal index or pre-operative anterior body height compression (p = 0.217, 0.104, 0.104, and 0.109 respectively). The mean pre-operative sagittal index was 19.6 degrees (12 degrees to 28 degrees) which was corrected to -1.8 degrees (-5 degrees to 3 degrees) post-operatively and 2.4 degrees (0 degrees to 8 degrees) at final follow-up (p = 0.835 for sagittal deformity). No patient needed revision for loss of correction or failure of instrumentation. Hyperlordotic reduction and short segment pedicle screw instrumentation and an intermediate screw is a safe and effective method of treating burst fractures of the thoracolumbar spine. It gives excellent radiological results with a very low rate of failure regardless of whether the fractures have a high or low load-sharing classification score.

Açıklama

Anahtar Kelimeler

Kaynak

Bone & Joint Journal

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

96B

Sayı

4

Künye