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Fig. 1 | Knee Surgery & Related Research

Fig. 1

From: Appropriate determination of the surgical transepicondylar axis can be achieved following distal femur resection in navigation-assisted total knee arthroplasty

Fig. 1

Intraoperative determination of the surgical transepicondylar axis (sTEA) before and after distal femur resection. A The registration of sTEA as determined before distal femur resection. B The determination of sTEA after distal femur resection. The lowest line is the intraoperatively determined sTEA connecting the tip of the lateral femoral epicondyle to the lowest point of the medial femoral epicondylar sulcus after distal femur resection. The remaining lines are ancillary lines drawn for the accurate rotational alignment of the anteroposterior femur cutting guide. C The verification process for anteroposterior femur resection. The navigation indicates the difference between intraoperatively determined sTEAs before and after distal femur resection (red square)

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