Research Article

Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis

Volume: 46 Number: 4 September 5, 2012
  • H. Gokhan Demirkiran
  • İbrahim Akel
  • Guney Yilmaz
  • Mehmet Ayvaz
  • Ahmet Alanay
  • Muharrem Yazici
TR EN

Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis

Abstract

Objective: The aim of this study was to evaluate the effectiveness of long-segment posterior instrumentation and allograft application in obtaining fusion in congenital scoliosis.
Methods: Twenty-one patients with congenital scoliosis who were treated with long-segment posterior instrumentation (>6 levels) and freeze-dried allograft and followed up for more than 24 months were reviewed. Six patients were excluded from the study due to anterior procedures. Fifteen patients with congenital scoliosis (13 females, 2 males; mean age: 12.2±3 years, range: 7-17 years) were retrospectively reviewed. Mean follow-up time was 30.9±9.4 (range: 24 to 48) months. Six patients had laminectomy either due to previous posterior surgeries or to address intraspinal pathologies during the posterior fusion procedure. Preoperative, postoperative and final follow-up anteroposterior and lateral spine X-rays were reviewed. Fusion was graded according to the classification reported by Bridwell et al.
Results: Two patients were graded as ‘no fusion’ (pseudarthrosis), four patients as ‘probably fused’, and nine patients as ‘definitely fused’. The major curve was corrected from an average of 68±18.6 to 39.3±12.2 degrees (p<0.001). Mean correction lost in the major curve was an average of 4.5±5.2 degrees in the latest follow-up. There was significant correction in the compensatory curve (preoperative 37.9±13.2 degrees, postoperative 20.2±6.6 degrees; p=0.001). Preoperative and postoperative global thoracic kyphosis were 39.5±13.3 and 32.3±7.9 degrees, respectively (p=0.018). Preoperative and postoperative global lumbar lordosis was 36.3±7.4 and 36.1±8.9 degrees, respectively (p=0.883). Successful fusion was detected in %86.7 of patients in the final follow-up.
Conclusion: The usage of allograft alone to achieve fusion increases the rates of pseudarthrosis while additional anterior procedure decreases the pseudarthrosis rate in patients with congenital scoliosis that require long-segment posterior instrumentation. Further studies should be performed to assess the efficacy of the usage of polysegment pedicle screw instrumentation

Keywords

Details

Primary Language

English

Subjects

Health Care Administration

Journal Section

Research Article

Authors

H. Gokhan Demirkiran This is me

İbrahim Akel This is me

Guney Yilmaz This is me

Mehmet Ayvaz This is me

Ahmet Alanay This is me

Muharrem Yazici This is me

Publication Date

September 5, 2012

Submission Date

March 7, 2014

Acceptance Date

-

Published in Issue

Year 2012 Volume: 46 Number: 4

APA
Demirkiran, H. G., Akel, İ., Yilmaz, G., Ayvaz, M., Alanay, A., & Yazici, M. (2012). Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis. Acta Orthopaedica et Traumatologica Turcica, 46(4), 275-280. https://izlik.org/JA83WD22BK
AMA
1.Demirkiran HG, Akel İ, Yilmaz G, Ayvaz M, Alanay A, Yazici M. Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis. Acta Orthopaedica et Traumatologica Turcica. 2012;46(4):275-280. https://izlik.org/JA83WD22BK
Chicago
Demirkiran, H. Gokhan, İbrahim Akel, Guney Yilmaz, Mehmet Ayvaz, Ahmet Alanay, and Muharrem Yazici. 2012. “Long-Segment Posterior Instrumentation and Fusion With Freeze-Dried Allograft in Congenital Scoliosis”. Acta Orthopaedica et Traumatologica Turcica 46 (4): 275-80. https://izlik.org/JA83WD22BK.
EndNote
Demirkiran HG, Akel İ, Yilmaz G, Ayvaz M, Alanay A, Yazici M (September 1, 2012) Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis. Acta Orthopaedica et Traumatologica Turcica 46 4 275–280.
IEEE
[1]H. G. Demirkiran, İ. Akel, G. Yilmaz, M. Ayvaz, A. Alanay, and M. Yazici, “Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis”, Acta Orthopaedica et Traumatologica Turcica, vol. 46, no. 4, pp. 275–280, Sept. 2012, [Online]. Available: https://izlik.org/JA83WD22BK
ISNAD
Demirkiran, H. Gokhan - Akel, İbrahim - Yilmaz, Guney - Ayvaz, Mehmet - Alanay, Ahmet - Yazici, Muharrem. “Long-Segment Posterior Instrumentation and Fusion With Freeze-Dried Allograft in Congenital Scoliosis”. Acta Orthopaedica et Traumatologica Turcica 46/4 (September 1, 2012): 275-280. https://izlik.org/JA83WD22BK.
JAMA
1.Demirkiran HG, Akel İ, Yilmaz G, Ayvaz M, Alanay A, Yazici M. Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis. Acta Orthopaedica et Traumatologica Turcica. 2012;46:275–280.
MLA
Demirkiran, H. Gokhan, et al. “Long-Segment Posterior Instrumentation and Fusion With Freeze-Dried Allograft in Congenital Scoliosis”. Acta Orthopaedica et Traumatologica Turcica, vol. 46, no. 4, Sept. 2012, pp. 275-80, https://izlik.org/JA83WD22BK.
Vancouver
1.H. Gokhan Demirkiran, İbrahim Akel, Guney Yilmaz, Mehmet Ayvaz, Ahmet Alanay, Muharrem Yazici. Long-segment posterior instrumentation and fusion with freeze-dried allograft in congenital scoliosis. Acta Orthopaedica et Traumatologica Turcica [Internet]. 2012 Sep. 1;46(4):275-80. Available from: https://izlik.org/JA83WD22BK