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KMID : 0922220090090020088
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Journal of the Korean Musculoskeletal Transplantation Society
2009 Volume.9 No. 2 p.88 ~ p.97
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Clinical and Radiographic Comparison of Polyetheretherketone (PEEK) Cage versus Autogenous Iliac Strut Bone Graft in Anterior Cervical Discectomy and Fusion
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Shin Jae-Hyuk
Chang Ho-Geun
Seo Young-Jin
Baek Seok-Woo
Yoo Je-Hyun
Chang Jun-Dong
Kim Young-Woo
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Abstract
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Purpose: This study aimed to compare clnical and radiographic outcomes after autogenous iilac strut bone graft and plate fixation (AISBG) versus polyetheretherkitone (PEEK) cage fixation in anterior cervical discectomy and fusion (ACDF).
Materials and Methods: In ACDF surgery, 21 pateints who underwent AISBG and 13
patients who underwent PEEK cage insertion were included in the study. Clinical outcome was evaluated with visual analogue scale (VAS) of cervical pain and neck pain, neck disability index (NDI), and VAS for donor site pain. Radiographic outcome was evaluated by disc height, segmental lordosis of the operated segment, fusion rate, and additionally, degree of subsidence in PEEK cage group.
Results: Postoperative VAS, and NDI improved significantly in comparison with preoperative evaluation. Donor site pain in VAS was significantly higher in AISBG group than in PEEK cage group, both posteopratively (p<0.001), and at last follow-up (p<0.001). Disc height (DH) increased postoperatively but decreased at last follow up in both groups; the amounts of postoperative DH decrease were not significantly different in the two groups (p=0.388). Segmental lordosis (SL) increased postoperatively, but again decreased at last follow up in both groups; the amounts of postoperative SL decrease were not significantly different (p=0.062). Mean subsidence in PEEK cage group was 1.91 mm. Fusion rate was similar in two groups as 90% and 93.3%.
Conclusion: In ACDF surgery, AISBG group and PEEK cage group showed clinically and radiographically similarly favorable results. PEEK cage insertion may be an effective alternative to AISBG in attempting to obviate the donor site pain.
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KEYWORD
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ACDF, AISBG, PEEK cage, Donor site pain
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