About the Authors

Hui Cheng

Contributed equally to this work with: Hui Cheng, Li Liu

Affiliations Division of Joint Surgery, Dept. Orthopaedic Surgery, The First Affiliated Hospital of PLA General Hospital, Beijing, China, Institute for Surgical Technology and Biomechanics, University of Bern, CH-3014, Bern, Switzerland

Li Liu

Contributed equally to this work with: Hui Cheng, Li Liu

Affiliation Institute for Surgical Technology and Biomechanics, University of Bern, CH-3014, Bern, Switzerland

Weimin Yu

Affiliation Institute for Surgical Technology and Biomechanics, University of Bern, CH-3014, Bern, Switzerland

Hong Zhang

Affiliation Division of Joint Surgery, Dept. Orthopaedic Surgery, The First Affiliated Hospital of PLA General Hospital, Beijing, China

Dianzhong Luo

Affiliation Division of Joint Surgery, Dept. Orthopaedic Surgery, The First Affiliated Hospital of PLA General Hospital, Beijing, China

Guoyan Zheng

guoyan.zheng@ieee.org

Affiliation Institute for Surgical Technology and Biomechanics, University of Bern, CH-3014, Bern, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GZ. Performed the experiments: HC LL. Analyzed the data: HC LL GZ. Contributed reagents/materials/analysis tools: HZ WY DL GZ. Wrote the paper: HZ DL GZ. Organized the acquisition of CT data used in this study: HZ DL.