Fig. 6

Findings in Study II (n = 36). A Box plots showing angles between the bony MTP and the cartilage MTP on preoperative sagittal MRI and intraoperative lateral knee radiographs. The absolute value of the mean angle on the intraoperative radiograph was significantly smaller than that on the MRI. B A scatter diagram of the angles on the preoperative sagittal MRI and the intraoperative lateral knee radiograph. There was a week but significant correlation between them (r = 0.38, p < 0.05). In many cases, the angle on the intraoperative radiograph was smaller than that on the preoperative MRI. C Box plots showing preoperative boney PTS and postoperative implant PTS. D A box plot showing the difference between pre- and postoperative PTS. E. A scatter diagram of the angles of pre- and postoperative PTS. A strong correlation was noted (r = 0.84, p < 0.001)