• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Knee surgery, sports traumatology, arthroscopy: official journal of the ESSKA >Graft healing in a bone tunnel: bone-attached graft with screw fixation versus bone-free graft with extra-articular suture fixation.
【24h】

Graft healing in a bone tunnel: bone-attached graft with screw fixation versus bone-free graft with extra-articular suture fixation.

机译：骨隧道中的移植物愈合：采用螺钉固定的骨连接移植物与采用关节外缝合线固定的无骨移植物。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The purpose of this study was to clarify differences in tendon graft-to-bone tunnel healing between bone-attached tendon grafts with interference-screw fixation and bone-free tendon grafts with extra-articular suture fixation. In 42 Japanese White rabbits, anterior half replacement of the medial collateral ligament was performed using half of the ipsilateral patellar tendon. At the femoral attachment, the bone-plug-attached graft was fixed with an interference screw (group A). The bone-plug-free graft was fixed by the extra-articular suture fixation technique with sutures tied over a button (group B). Biomechanical and histological evaluations were performed at 2, 4 and 8 weeks postoperatively. In biomechanical evaluation, at 2 or 4 weeks 27 of 28 specimens (96%) were pulled out from the femoral tunnel, while one 4-week specimen and all four 8-week specimens failed at the graft's mid-substance. At 2 weeks, the maximum failure load was 25+/-10 N and 24+/-6 N for group A and group B respectively (mean+/-SD). At 4 weeks, the maximum failure load was 42+/-17 N and 35+/-15 N respectively. There were no significant differences in maximum pullout failure load between the groups at 2 or 4 weeks postoperatively. (P=0.887 at 2 weeks and P=0.339 at 4 weeks using ANOVA measurement). Histologically, the bone-attached grafts showed partial bone-to-bone union at the graft-bone tunnel interface at 4 weeks, and complete bony union at 8 weeks. The bone-free grafts exhibited newly formed Sharpey-like collagen fibers at 4 weeks, and strong connection by mature granulation tissue at 8 weeks. Graft-to-bone tunnel healing of bone-attached graft with screw fixation and bone-free graft with extra-articular suture fixation are comparable in terms of biomechanical evaluation during the early postoperative periods.
机译：这项研究的目的是弄清采用干涉螺钉固定的附骨腱移植物与采用关节外缝合线固定的无骨腱移植物之间的肌腱移植物至骨隧道愈合的差异。在42只日本白兔中，使用一半同侧tell腱进行前侧内侧副韧带置换。在股骨连接处，用干涉螺钉固定接有骨栓的移植物（A组）。无骨塞移植物通过关节外缝合线固定技术固定，缝合线绑在纽扣上（B组）。术后第2、4和8周进行生物力学和组织学评估。在生物力学评估中，在第2或第4周，从股骨隧道中取出28个标本中的27个（占96％），而一个4周标本和所有四个8周标本均在移植物的中部破裂。在2周时，A组和B组的最大失效负荷分别为25 +/- 10 N和24 +/- 6 N（平均+/- SD）。在第4周时，最大失效载荷分别为42 +/- 17 N和35 +/- 15N。术后2或4周，两组之间的最大拔出失败负荷无显着差异。 （使用ANOVA测量在2周时P = 0.887，在4周时P = 0.339）。从组织学上看，附着骨的移植物在第4周在移植物-骨通道界面处显示部分骨-骨结合，并在第8周显示完全骨结合。无骨移植物在第4周表现出新形成的Sharpey状胶原纤维，在第8周表现出成熟肉芽组织的牢固连接。在术后早期的生物力学评估方面，采用螺钉固定的带骨移植物和采用关节外缝合线固定的无骨移植物的骨到骨隧道愈合具有可比性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号