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ASTM Launches Standard Initiative for Computer Assisted Orthopedic Surgery

A planning meeting was held on April 29 to discuss the initiation of a new ASTM activity for computer assisted orthopedic surgery. The meeting was attended by approximately 20 leaders in the field of CAOS from Canada, France, Germany, Switzerland, the United Kingdom, and the United States. The meeting concluded with a motion to hold an organizational meeting, which will take place in Chicago, Ill., on June 16. All interested parties are invited to attend this meeting.

CAOS is derived from CAS, which was first employed to improve the accuracy and outcome of cranial neurosurgical procedures. The accuracy and ease of use, coupled with the need for precision, has propelled the use of CAS-enhanced procedures.

The accuracy of these systems currently needs attention, as inaccuracy can be introduced in a number of ways, including: distortion (lack of resolution), imaging, error in registration where coordinate space of the images is related to those of the surgical intervention, inaccuracy in the digitizers, tissue deformation, operator error, and software error. Issues of training and certification add complications, as educational requirements, certification processes, or regulation overuse are seen as barriers to use.

To resolve many of these issues, standard topics were identified at the planning meeting, including accuracy definition and measurement, accuracy with respect to various applications and procedures, image quality, system interoperability, and others.

The group agreed to propose the following title and scope for the new activity:

Title: Computer Assisted Orthopedic Surgical Systems
Scope: The development of international standards for the metrology,validation, and performance of systems for computer assisted orthopedic surgery

The organizational meeting at the CAOS International meetings will be on Wednesday, June 16, from 11 a.m. to 2 p.m. in Chicago, Ill. For membership or meeting details, contact Daniel Schultz, ASTM International (phone: 610/832-9716). //

Copyright 2004, ASTM International