用于重建下颌骨种植体植入的腓骨转移形态的CT评估
CT Evaluation of Morphology of Transferred Fibula for Implant Placement in Reconstructed Mandible.
作者信息
Akashi Masaya, Shibuya Yasuyuki, Wanifuchi Satoshi, Kusumoto Junya, Sakakibara Akiko, Kimoto Akira, Hasegawa Takumi, Suzuki Hiroaki, Hashikawa Kazunobu, Komori Takahide
机构信息
*Assistant Professor, Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan. †Professor, Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medicine, Nagoya, Japan. ‡Clinical Fellow, Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan. §Associate Professor, Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan. ¶Associate Professor, Department of Plastic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan. ‖Professor, Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.
出版信息
Implant Dent. 2015 Oct;24(5):541-6. doi: 10.1097/ID.0000000000000290.
BACKGROUND
Dental rehabilitation with osseointegrated implants in reconstructed mandibles remains one of the most challenging procedures for oral and maxillofacial surgeons. Satisfactory outcome requires appropriate assessment of graft morphology. There are few analyses of the morphology of fibulae in reconstructed mandibles, although cadaver studies on fibular shape have been performed.
MATERIALS AND METHODS
In this study, we used postoperative computed tomography to retrospectively evaluate the shape, height, and orientation of fibulae transferred after mandibulectomy in 19 patients.
RESULTS
The average height of transferred fibulae was 14.3 mm (range, 10.8-20.5 mm). The cross-sectional morphology of transferred fibulae could be classified into 2 types: apex and nonapex. The former type included knife-edged and triangular shapes; the latter included square and circular shapes.
CONCLUSION
When implant insertion is planned in a reconstructed mandible, the orientation of the apex of transferred fibula should be evaluated preoperatively to allow for adjustments in implant procedure because the ridge at the apex of the fibula is narrow.
背景
对于口腔颌面外科医生而言，在重建下颌骨中使用骨整合种植体进行牙修复仍然是最具挑战性的手术之一。满意的结果需要对移植形态进行适当评估。尽管已经对腓骨形状进行了尸体研究，但对重建下颌骨中腓骨形态的分析却很少。
材料与方法
在本研究中，我们使用术后计算机断层扫描对19例患者下颌骨切除术后转移的腓骨的形状、高度和方向进行回顾性评估。
结果
转移腓骨的平均高度为14.3毫米（范围为10.8 - 20.5毫米）。转移腓骨的横截面形态可分为两种类型：尖形和非尖形。前一种类型包括刀刃形和三角形；后一种包括方形和圆形。
结论
当计划在重建下颌骨中植入种植体时，术前应评估转移腓骨顶端的方向，以便在种植手术中进行调整，因为腓骨顶端的嵴很窄。
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