Beckers H L, Freitag V
J Maxillofac Surg. 1980 Nov;8(4):316-23. doi: 10.1016/s0301-0503(80)80120-2.
A method is described of fastening bone segments to the mandible and maxilla by means of lag screws. The indications are discussed, as are the possible advantages of the procedure compared with fixation of bone grafts by wiring or by osteosynthesis plates. Indications include: 1. Fixation of bone segments at the lower border of the mandible when, after maximal displacement of the segments, the surface of contact between the mandible and the bone segment becomes too small. 2. Filling-in defects in the alveolar process, e.g. stabilising bone grafts for augmentation of the height of the alveolar ridge. 3. Fixation of fragments serving to bridge over mandibular defects. Within the stated range of indications lag screws appear to have the following advantages compared with wire fixation: a) more stable immobilisation of the grafts b) closer contact between graft and recipient surface through compression between the two; c) the possibility of easier removal of the screws compared with removal of wires. Within the range of indications lag screws appear to have the following advantages compared with bone graft fixation by means of osteosynthesis plates: a) The plate acts as a separating medium between graft and the soft tissue bed. b) The more tedious removal of plates is avoided with screws.
本文描述了一种通过拉力螺钉将骨段固定于下颌骨和上颌骨的方法。文中讨论了该方法的适应证，以及与通过钢丝结扎或接骨板进行骨移植固定相比，此手术可能具有的优势。适应证包括：1. 当下颌骨骨段最大移位后，下颌骨与骨段之间的接触面积变得过小时，将骨段固定于下颌骨下缘。2. 填充牙槽突缺损，例如稳定骨移植以增加牙槽嵴高度。3. 固定用于修复下颌骨缺损的骨块。在所述适应证范围内，与钢丝固定相比，拉力螺钉似乎具有以下优势：a) 移植骨固定更稳定；b) 通过两者之间的加压，移植骨与受植床表面接触更紧密；c) 与取出钢丝相比，螺钉更容易取出。在适应证范围内，与通过接骨板进行骨移植固定相比，拉力螺钉似乎具有以下优势：a) 接骨板在移植骨与软组织床之间起分隔作用。b) 螺钉避免了接骨板更繁琐的取出过程。
