Effect of Varying Posterior Cruciate Ligament (PCL) Recessions on Kinematics and Ligament Strains with Cruciate Retaining Total Knee Prostheses
Ran Schwarzkopf, MD, MSc, Assistant Professor, Department of Orthopaedic Surgery, Division of Adult Reconstruction, NYU Hospital for Joint Diseases, NYU Langone Medical Center, New York, NY, Scott K. Laster, BSc, Director of Knee Marketing and , Active Knee Business Leader, Smith & Nephew, Memphis, TN, Michael B. Cross, MD, Assistant Professor, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, Nathaniel M. Lenz, MSc, Product Development Engineer, Smith & Nephew Memphis, TN

697

What Is the Efficacy of Repeat Manipulations Under Anesthesia to Treat Stiffness Following Primary Total Knee Arthroplasty?
Kimona Issa, MD, PGY-2 Resident, Todd P. Pierce, MD, Research Fellow, Alexander Brothers, MD, PGY-3 Resident, Vincent K. McInerney, MD, Residency Program Director, Department of Orthopaedics, Seton Hall University, School of Health and Medical Sciences, South Orange, New Jersey, Morad Chughtai, MD, Jaydev B. Mistry, MD, Research Fellow, Wayne W. Bryant, MS, Research Assistant,  Ronald E. Delanois, MD, Fellowship Director, Department of Orthopaedic Surgery, Steven F. Harwin, MD, Chief of Adult Reconstruction and Total Joint Replacement, Department of Orthopaedic Surgery, Beth Israel Medical Center, New York, New York, Michael A. Mont, MD, Director, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland

710

Single-Use Instrumentation Technologies in Knee Arthroplasty: State of the Art
Giacomo Dell’Osso, MD , Specialist in Orthopedics and Traumatology, Fabio Celli, MD, Resident in Orthopedics and Traumatology, Vanna Bottai, MD, Specialist in Orthopedics and Traumatology, Giulia Bugelli, MD, Resident in Orthopedics and Traumatology, Carmine Citarelli, MD, Resident in Orthopedics and Traumatology, Giulio Agostini, MD, Resident in Orthopedics and Traumatology, Giulio Guido, MD, Professor of Orthopedics and Traumatology, Stefano Giannotti, MD, Specialist in Orthopedics and Traumatology, IInd Orthopaedic and Traumatologic Clinic, University of Pisa, Pisa, Italy

727

Long-Term Survivorship and Clinical Outcomes of a Single Radius Total Knee Arthroplasty
Jaydev B. Mistry, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and, Replacement,  Sinai Hospital of Baltimore, Baltimore, Maryland, Randa K. Elmallah, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and, Replacement,  Sinai Hospital of Baltimore, Baltimore, Maryland, Morad Chughtai, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and,  Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Melike Oktem, MD, Research Assistant, Rubin Institute for Advanced Orthopedics,  Center for Joint Preservation and, Replacement,  Sinai Hospital of Baltimore, Baltimore, Maryland, Steven F. Harwin, MD, Chief, Adult Reconstruction Service, Mount Sinai Beth Israel, New York, New York, Michael A. Mont, MD, Director, Rubin Institute for Advanced Orthopedics,  Center for Joint Preservation and,  Replacement,  Sinai Hospital of Baltimore,  Baltimore, Maryland

703

Mobile Application Use in Monitoring Patient Adherence to Perioperative Total Knee Arthroplasty Protocols
Kelvin Kim, BA, Research Assistant, Penn State College of Medicine, Hershey, Pennsylvania, Diep Pham, FNP, MN, MBA, Professor of Nursing, School of Nursing, Golden West College, Huntington Beach, California, Ran Schwarzkopf, MD, MSc, Assistant Professor of Orthopaedic Surgery, Division of Adult Reconstruction Surgery, New York University Hospital For Joint Diseases, New York University Langone Medical Center, New York, New York

709

What Influences How Patients Rate Their Hospital After Total Knee Arthroplasty?
Morad Chughtai, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Julio J. Jauregui, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Jaydev B. Mistry, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Randa K. Elmallah, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Aloise M. Diedrich, BS, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Peter M. Bonutti, MD, Orthopedic Surgeon, Bonutti Clinic, Effingham, Illinois, Ronald Delanois, MD, Orthopedic Surgeon, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Michael A. Mont, MD, Director, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland

706

An Assessment of the Comprehensiveness of Various Hip Outcome Scores
Jaydev B. Mistry, MD , Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement , Sinai Hospital of Baltimore, Baltimore, Maryland, Julio J. Jauregui, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement , Sinai Hospital of Baltimore, Baltimore, Maryland, Aaron L. Lerner, BS, Research Volunteer, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement , Sinai Hospital of Baltimore, Baltimore, Maryland, Morad Chughtai, MD , Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement , Sinai Hospital of Baltimore, Baltimore, Maryland , Randa K. Elmallah, MD , Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement , Sinai Hospital of Baltimore, Baltimore, Maryland, Michael A. Mont, MD, Director, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement , Sinai Hospital of Baltimore, Baltimore, Maryland

699

Outcomes of Second-Generation Tapered Wedge Femoral Stem
Frank R. Kolisek, MD, Orthopaedic Surgeon, OrthoIndy, Greenwood, Indiana, Morad Chughtai, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Jaydev B. Mistry, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Randa K. Elmallah, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Charles Jaggard, MS, Research Coordinator, OrthoIndy, Greenwood, Indiana, Arthur L. Malkani, MD, Orthopaedic Surgeon, University of Louisville, Adult Reconstruction Program, Louisville, Kentucky, Michael A. Masini, MD, Orthopaedic Surgeon, St. Joseph Mercy Hospital, Ann Arbor, Michigan, Steven F. Harwin, MD, Chief, Adult Reconstruction Service, Mount Sinai Beth Israel, New York, New York, Michael A. Mont, MD, Director, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland

702

Time Burden of Standardized Hip , Questionnaires
Morad Chughtai, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Anton Khlopas, MD, Research Assistant, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Jaydev B. Mistry, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Chukwuweike U. Gwam, MD, Research Assistant, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Randa K. Elmallah, MD, Research Fellow, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland, Michael A. Mont, MD, Director, Rubin Institute for Advanced Orthopedics, Center for Joint Preservation and Replacement, Sinai Hospital of Baltimore, Baltimore, Maryland

705

Giant Schwannoma of the Saphenous Nerve in The Distal Thigh: A Case Report
Giulia Bugelli, MD , Resident in Orthopedics and Traumatology, Giacomo Dell’Osso, MD , Specialist in Orthopedics and Traumatology, Vanna Bottai, MD, Specialist in Orthopedics and Traumatology, Fabio Celli, MD, Resident in Orthopedics and Traumatology, Barbara Loggini, MD, Specialist in Anatomical Pathology, Giulio Guido, MD, Professor of Orthopedics and Traumatology, Stefano Giannotti, MD, Specialist in Orthopedics and Traumatology, Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy

728

Grafting of Expanded Mesenchymal Stem Cells without Associated Procedure in a Healed Case of Ulna Pseudarthrosis: A Case Report
Giacomo Dell’Osso, MD, Specialist in Orthopedics and Traumatology, Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy, Giulia Bugelli, MD, Resident in Orthopedics and Traumatology, Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy, Fabio Celli, MD, Resident in Orthopedics and Traumatology, Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy, Mario Petrini, MD, Professor of Hematology, Hematology Division, Department of Oncology, University of Pisa, Pisa, Italy, Luisa Trombi, MD , Specialist in Hematology, Hematology Division, Department of Oncology, University of Pisa, Pisa, Italy, Giulio Guido, MD, Professor of Orthopedics and Traumatology, Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy, Stefano Giannotti, MD, Specialist in Orthopedics and Traumatology, Department of Orthopedic and Traumatology, University of Pisa, Pisa, Italy

726