1Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York, USA
2Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
3Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
4Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, USA
5Department of Biomedical Engineering, University of Rochester, Rochester, New York, USA
6Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
7Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, New York, USA
8Department of Orthopaedics, University of Maryland Medical Center, Baltimore, Maryland, USA
9Hospital for Special Surgery, New York, New York, USA