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KMID : 0922220040040020112
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Journal of the Korean Musculoskeletal Transplantation Society
2004 Volume.4 No. 2 p.112 ~ p.118
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The Long-Term Result of Strut Iliac Tricortical Allograft for Interbody Fusion with Pedicle Screw Fixation
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Kim Eung-Ha
Lee Jung-Hee
Roh Jae-Young
Wang Won-Joon
Kim Young-Eun
Shin Dong-Hoon
Kim Yong-Bom
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Abstract
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Purpose: To analyze the long-term result of strut iliac tricortical allograft for interbody fusion with pedicle screw fixation.
Materials and Methods: Thirty-one patients(58 segments) who underwent interbody fusion using strut iliac tricortical allograft with posterior instrumentation and could be followed for at least 5 years were included in this study. Mean age at surgery was 61±11 years(range; 34-84 years) and the average follow-up period was 80±10 months(range; 60-94 months). This study analyzed out bony union, collapse of strut iliac tricortical allograft, loosening of internal fixation and loss of correction.
Result: Among them, the 50 segments(86.2%) were fused at the last follow-up. The mean duration for bony union between the graft material and host bone was 7.2 months in 10 segments(20.0%) at 4 months after operation, 17 segment (34.0%) at 6 months, 20 segments(40.0%) at 9 months, and 3 segments(6.0%) at 1 year, respectivey.
Conclusion: The final outcome was good as 86% of bony union, by using of the strut iliac tricortical allograft for interbody fusion. However, there was a significantly increased risk of graft collapse in the patients who underwent forceful sagittal correction. The strut iliac tricortical allograft should be selectively used to facilitate better bony union.
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KEYWORD
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Spine, Interbody fusion, Strut iliac tricortical allograft, Pedicle screw fixation
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