Abstract
Hull Medical Engineering (HULMEC) group was established in 1992 as a collaboration of orthopaedic surgeons and various research groups from the University of Hull to promote multidisciplinary research especially the application of computers to aid in surgery. With the joint effort of researchers and surgeons CAOSS was developed.
The key aim of the CAOSS has been to use intra-operative surgical planning using fluoroscopic based images, hence this system aids in performing those procedure which requires fluoroscopy namely dynamic hip screw guide wire insertion, distal locking of the screw and placement of cannulated hip screw. The major steps of CAOSS are the precision calibration of the fluoroscopic images, use of these images for accurate intra operative surgical planning, innovative planning algorithms, and a safe, rapid and accurate approach to trajectory execution. CAOSS has been used on the plastic bones in the laboratory setting and was found to be accurate. Presently CAOSS has been used in an ethically approved clinical trial for guide wire insertion for the DHS placement.
Perceived Advantages of CAOSS
Safe
Passive system
Non-invasive
Surgeon maintains decision making
Decreasing radiation exposure
Reducing complexity of the procedure
Reducing technical failures
Reducing operating time
Improving accuracy of implant placement
Reducing bone damage (by reducing repeated guide wire insertion)
Improving Patient outcome
Cost Effective
Easy to use
Theses abstracts were prepared by Mr Peter Kay. Correspondence should be address to him at The Hip Centre, Wrightington Hospital, Appley Bridge, Wigan, Lancashire WN6 9EP.
