Malek S, Phillips R, Mohsen A, Viant W, Bielby M, Sherman K
Department of Computer Science, University of Hull, Cottingham Road, Hull, UK. HU6 7RX.
Int J Med Robot. 2005 Dec;1(4):34-44. doi: 10.1002/rcs.54.
The insertion of distal locking screws is a difficult task in intra-medullary (IM) nailing operations of long bones and contributes a significant proportion to the overall operating time. The current technique to insert these screws uses numerous fluoroscopic images and depends on the skills and expertise of the surgeon. The Computer Assisted Orthopaedic Surgical System (CAOSS) was developed to assist orthopaedic surgeons in these operations. The laboratory based test results for insertion of distal locking screws in IM nailing procedures are presented and discussed in terms of accuracy and as part of the validation process to introduce new CAOS procedures into clinical use. This study shows that CAOSS in IM nailing is robust and reliable. Positional accuracy was shown to be within 0.3 mm and angular accuracy within 0.2 degrees with femoral IM nail. CAOSS was also shown to be very reliable and accurate at different angles of distal screws in fluoroscopic image space.
在长骨的髓内钉手术中，插入远端锁定螺钉是一项困难的任务，且在整个手术时间中占很大比例。目前插入这些螺钉的技术需要使用大量的透视图像，并且依赖于外科医生的技能和专业知识。计算机辅助骨科手术系统（CAOSS）的开发是为了在这些手术中协助骨科医生。本文展示并讨论了在髓内钉手术中插入远端锁定螺钉的基于实验室的测试结果，涉及准确性，并作为将新的计算机辅助骨科手术程序引入临床使用的验证过程的一部分。这项研究表明，髓内钉手术中的CAOSS强大且可靠。使用股骨髓内钉时，位置精度显示在0.3毫米以内，角度精度在0.2度以内。在透视图像空间中，CAOSS在不同角度的远端螺钉插入时也显示出非常可靠和准确。
