• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Orthopaedic Journal of Sports Medicine >Latarjet Fixation
【24h】

Latarjet Fixation

机译：Latarjet固定

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Background: Attritional bone loss in patients with recurrent anterior instability has successfully been treated with a bone block procedure such as the Latarjet. It has not been previously demonstrated whether cortical or cancellous screws are superior when used for this procedure. Purpose: To assess the strength of stainless steel cortical screws versus stainless steel cannulated cancellous screws in the Latarjet procedure. Study Design: Controlled laboratory study. Methods: Ten fresh-frozen matched-pair shoulder specimens were randomized into 2 separate fixation groups: (1) 3.5-mm stainless steel cortical screws and (2) 4.0-mm stainless steel partially threaded cannulated cancellous screws. Shoulder specimens were dissected free of all soft tissue and a 25% glenoid defect was created. The coracoid process was osteomized, placed at the site of the glenoid defect, and fixed in place with 2 parallel screws. Results: All 10 specimens failed by screw cutout. Nine of 10 specimens failed by progressive displacement with an increased number of cycles. One specimen in the 4.0-mm screw group failed by catastrophic failure on initiation of the testing protocol. The 3.5-mm screws had a mean of 274 cycles (SD, ±171 cycles; range, 10-443 cycles) to failure. The 4.0-mm screws had a mean of 135 cycles (SD, ±141 cycles; range, 0-284 cycles) to failure. There was no statistically significant difference between the 2 types of screws for cycles required to cause failure ( P = .144). Conclusion: There was no statistically significant difference in energy or cycles to failure when comparing the stainless steel cortical screws versus partially threaded cannulated cancellous screws. Clinical Relevance: Latarjet may be performed using cortical or cancellous screws without a clear advantage of either option.
机译：背景：复发性前路不稳患者的磨损性骨丢失已成功通过Latarjet等骨阻滞术得以治疗。以前尚未证明在此过程中使用皮质或松质螺钉是否优越。目的：在Latarjet程序中评估不锈钢皮质螺钉与不锈钢空心针状螺钉的强度。研究设计：受控实验室研究。方法：将十只新鲜冷冻的配对双肩标本随机分为两个固定组：（1）3.5毫米不锈钢皮质螺钉和（2）4.0毫米不锈钢部分螺纹空心螺钉。解剖标本，去除所有软组织，形成25％的关节盂缺损。将喙突切骨，切成盂状缺损处，并用2个平行螺钉固定在适当位置。结果：所有10个样品均因螺丝开孔而失败。 10个标本中有9个因渐进位移而失败，循环次数增加。在开始试验方案时，4.0毫米螺钉组中的一个标本因灾难性故障而失败。 3.5毫米螺钉的平均故障寿命为274个周期（SD，±171个周期;范围为10-443个周期）。 4.0毫米螺钉的平均失效周期为135个周期（SD，±141个周期;范围为0-284个周期）。导致故障所需的周期，两种螺钉之间在统计学上没有显着差异（P = .144）。结论：当比较不锈钢皮质螺钉与部分螺纹空心螺钉时，能量或失效周期没有统计学上的显着差异。临床意义：可以使用皮质或松质螺钉进行Latarjet，而没有明显的优势。

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