A novel augmented reality (AR) scheme for knee replacement surgery by considering cutting error accuracy

Abstract

The proposed system is focused on overlaying only the remaining areas of surgery that need to be completed. Finally, this study solves the issues of navigation with AR when cutting bones in a scheduled direction and depth.

Augmented reality for narrow area navigation in jaw surgery: Modified tracking by detection volume subtraction algorithm

“…This part of the research presents features (highlighted by blue dashed lines in Figure ) and limitations (highlighted by red dashed lines) of the best current system. The aim of this research is to reduce the cutting error in jaw surgery, for which we found a solution in the work of Pokhrel et al who achieved high accuracy in cutting in hard‐tissue during knee surgery. Pokhrel et al enhanced the ICP with a VSA to estimate the shape and provide a better view of target areas in narrow surgical corridors.…”

“…The aim of this research is to reduce the cutting error in jaw surgery, for which we found a solution in the work of Pokhrel et al who achieved high accuracy in cutting in hard‐tissue during knee surgery. Pokhrel et al enhanced the ICP with a VSA to estimate the shape and provide a better view of target areas in narrow surgical corridors. The enhanced ICP algorithm has reduced the cutting error by 1 mm and increased the accuracy of 0.40 to 0.55 mm while decreased the processing time to 9‐10 fps.…”

“…Here, a virtual scene is superimposed on the real‐time environment, generating a 3D view, which aids navigation during surgery . For jaw surgery, the capability inherent in AR, of layering virtual content onto the field of view of the surgeon, is particularly important to locate the specific areas that need to be cut with a high level of precision. As previously pointed out, there is always a risk of cutting nerve channels or root canals associated with jaw surgery, which makes it desirable to be able to track the position and orientation of surgical instruments used for cutting jaw bones .…”

“…As previously pointed out, there is always a risk of cutting nerve channels or root canals associated with jaw surgery, which makes it desirable to be able to track the position and orientation of surgical instruments used for cutting jaw bones . In terms of technique, a volume subtraction algorithm (VSA) is considered to achieve the most desirable bone‐cutting without markers in low processing time . Furthermore, the depth mapping‐based occlusion removal system in AR reduces the image overlay error and improves processing time, for which Wang et al introduced a practical marker‐less image registration method to achieve high registration accuracy.…”

A novel rotation invariant and Manhattan metric–based pose refinement: Augmented reality–based oral and maxillofacial surgery

“…This solution provided the accuracy in terms of overlay error 0.30 to 0.40 mm and processing time by 7 to 10 frames per second. Pokhrel et al have conducted research to downgrade the cutting error of the surgery. They implemented volume substraction method to find out the remaining area to be cut in the operation.…”