Viewing Study NCT00022802



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Last Modification Date: 2024-10-26 @ 9:06 AM
Study NCT ID: NCT00022802
Status: TERMINATED
Last Update Posted: 2009-04-09
First Post: 2001-08-14

Brief Title: Image Guided System for Orthopaedic Surgery
Sponsor: National Institute of Arthritis and Musculoskeletal and Skin Diseases NIAMS
Organization: National Institute of Arthritis and Musculoskeletal and Skin Diseases NIAMS

Study Overview

Official Title: Image Guided Surgical System for Orthopaedic Trauma
Status: TERMINATED
Status Verified Date: 2009-04
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Grant expired
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This project focuses on the further development and clinical testing of an image-guided surgical system The system will help surgeons perform procedures that involve inserting a screw guide pin drill bit or other straight object into bone-for example inserting screws in a broken hip bone These surgeries are currently done with the help of a mobile x-ray device called a C-arm which provides the surgeon with x-ray images during the procedure

C-arms have some disadvantages including image distortion radiation exposure and the need for time-consuming adjustments of the C-arm during the surgery The new method would deal with these shortcomings with a computer-based system that adds to the existing C-arm system It would provide the surgeon with a real-time view of the insertion process and could improve the accuracy and speed of certain surgical procedures

Disadvantages associated with C-arms include image distortion radiation exposure and time consuming reconfiguration of the C-arm during the insertion process The proposed system would address these shortcomings with a computer-based system that augments the existing C-arm system
Detailed Description: This Small Business Innovation Research Phase II project supports the further development and clinical testing of an image-guided surgical system that will assist the surgeon in performing procedures that involve the insertion of a screw guide pin drill bit or other linear object into bone These surgeries are currently performed with the assistance of a mobile fluoroscopic x-ray imager known as a C-arm

Disadvantages associated with C-arms include image distortion radiation exposure and time-consuming reconfiguration of the C-arm between AP and lateral views during the insertion process The proposed system would address these shortcomings with a computer-based system that augments the existing C-arm system The new system uses an optical localizer a stereo camera device that tracks light-emitting diodes to monitor the location and orientation of a drill guide in the surgical field The drill guide trajectory is then graphically superimposed on the x-ray images This provides real-time on-screen positional feedback to the surgeon to improve the accuracy and speed with which certain procedures involving insertion of drill bits or guide pins can be performed The research effort will focus on the development of a clinical prototype and its evaluation by several quantitative and qualitative methods

The commercial success of such a system depends on its acceptance by surgeons which in turn depends on the extent to which it is a tool that provides better information to the surgeons without intruding on a procedure in which they are already highly skilled Commercial success also depends on the ability of the system to reliably save time in the operating room We will address these issues with cadaveric studies and subsequent clinical trials

Proposed Commercial Applications The initial commercial application of this system is the insertion of dynamic compression hip screws in cases of hip fracture Because this is a common fracture any reduction in surgical time has great potential for cost savings Other advantages include decrease in radiation exposure and the potential reduction of serious complications Minor modifications that allow the system to assist with numerous other orthopaedic trauma procedures are already planned

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
NIAMS-054 None None None