Automated Preoperative Planning of Acetabulam Size and Angle Detection for Hemi-arthroplasty

Conventional pre-operative planning for Hemi-arthroplasty is performed with caliper, protractor, transparent templates and x-ray sheets. This technique is time consuming with many errors. Computer-aided pre-operative planning systems can assist surgeons in selecting correct sized implantable acetabulam and accurate planning of an operation. This paper describes the pre-operative planning by digital image processing techniques for Total Hip Replacement by using 2D digital X-ray images which leads to the development of a software for surgeons and radiographers. The authors have used advanced image processing techniques and algorithms in image enhancement, calibration, planning, templating and reporting to overcome problems faced while doing all these manually. The proposed methodology provides accurate, computer programmed, user-friendly and dimensionally correct solution. The technique seems to be reliable and acceptable to patients, radiographers and surgeons