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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 229 - 234 (6page)
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초록· 키워드
오류제보하기
Objective : Pedicle screw fixation for spine arthrodesis is a useful procedure for the treatment of spinal disorders. However, instrument failure often occurs, and pedicle screw loosening is the initial step of a range of complications. The authors recently used a modified transpedicular polymethylmethacrylate (PMMA) screw augmentation technique to overcome pedicle screw loosening. Here, they report on the laboratory testing of pedicle screws inserted using this modified technique. Methods : To evaluate pullout strengths three cadaveric spinal columns were used. Three pedicle screw insertion methods were utilized to compare pullout strength; the three methods used were; control (C), traditional transpedicular PMMA augmentation technique (T), and the modified transpedicular augmentation technique (M). After control screws had been pulled out, loosening with instrument was made. Screw augmentations were executed and screw pullout strength was rechecked. Results : Pedicle screws augmented using the modified technique for pedicle screw loosening had higher pullout strengths than the control ($1106.2{\pm}458.0N$ vs. $741.2{\pm}269.5N$; p=0.001). Traditional transpedicular augmentation achieved a mean pullout strength similar to that of the control group ($657.5{\pm}172.3N$ vs. $724.5{\pm}234.4N$; p=0.537). The modified technique had higher strength than the traditional PMMA augmentation technique ($1070.8{\pm}358.6N$ vs. $652.2{\pm}185.5N$; p=0.023). Conclusion : The modified PMMA transpedicular screw augmentation technique is a straightforward, effective surgical procedure for treating pedicle screw loosening, and exhibits greater pullout strength than traditional PMMA transpedicular augmentation. However, long-term clinical evaluation is required.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Bullmann V. / 2009 / Posterior operative correction of idiopathic scoliosis. Value of pedicle screws versus hooks / Orthopade 38:198~204
Burval DJ. / 2007 / Primary pedicle screw augmentation in osteoporotic lumbar vertebrae : biomechanical analysis of pedicle fixation strength / Spine(Phila Pa 1976) 32:1077~1083
Choma TJ. / 2011 / Biomechanical analysis of pedicle screws in osteoporotic bone with bioactive cement augmentation using simulated in vivo multicomponent loading / Spine(Phila Pa 1976) 36:454~462
Denaro V. / 2009 / Vertebroplasty and kyphoplasty / Clin Cases Miner Bone Metab 6:125~130
Frankel BM. / 2007 / Segmental polymethylmethacrylate-augmented pedicle screw fixation in patients with bone softening caused by osteoporosis and metastatic tumor involvement : a clinical evaluation / Neurosurgery 61:531~537
Burval DJ. / 2007 / Primary pedicle screw augmentation in osteoporotic lumbar vertebrae : biomechanical analysis of pedicle fixation strength / Spine(Phila Pa 1976) 32:1077~1083
Choma TJ. / 2011 / Biomechanical analysis of pedicle screws in osteoporotic bone with bioactive cement augmentation using simulated in vivo multicomponent loading / Spine(Phila Pa 1976) 36:454~462
Denaro V. / 2009 / Vertebroplasty and kyphoplasty / Clin Cases Miner Bone Metab 6:125~130
Frankel BM. / 2007 / Segmental polymethylmethacrylate-augmented pedicle screw fixation in patients with bone softening caused by osteoporosis and metastatic tumor involvement : a clinical evaluation / Neurosurgery 61:531~537
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