We present a novel approach that can quantify a cam lesion’s location and size. The clinical implications of our method’s measurements then will be reviewed and refined for future prospective studies. We will compare measurements with the method with our measurements from arthroscopy. To assess the ability of this method to predict arthroscopic findings, we will obtain preoperative CT scans for 25 patients who undergo hip arthroscopy for FAI. Zonal differences will be statistically analyzed. The mean bump height, volume, and location on the clock face, and relative zoning will be calculated. We then will quantify the cam lesion with 3-D parameters using a modified zoning method.
The resulting 3-D femoral and acetabular models will be analyzed with custom software. By segmenting raw DICOM data, we can determine the distance from the cam lesion’s surface points to the centroid of the femoral head to quantify the mean bump height, volume, and location. We developed a method to quantify femoral head cam lesions using 3-D modeling of CT scans. We asked whether automated quantification of CAM lesions based on CT data is a reasonable way to detect CAM lesions and whether they may be classified based on location. Our method also can be used to develop a classification system that describes the exact location and size of cam lesions. We present a novel approach to quantifying cam lesions in 3-D terms. The literature contains inconsistent definitions of the alpha angle and other nonthree-dimensional (3-D) radiographic measures. Femoroacetabular impingement (FAI) can lead to labral injury, osseous changes, and even osteoarthritis.
0 kommentar(er)
