Volume 33, June 2023

Letter from the Editors: Innovation in Orthopaedics
Mitchell Hallman, MD and Bijan Dehghani, MD

Letter from the Chair: I am the Bullfrog
L. Scott Levin, MD, FACS, FAOA

Letter from the Program Director
Daniel C. Farber, MD Editorials & Perspectives: Innovation Edition

Easing the Pressure Points for Translation of Surgical Innovation
Edward J Harvey, MD, MSc and Stephanie Parent-Harvey, BS

I Am Smarter Than You: Projections of Orthopaedic Research from the most Knowledgeable Mind in the World
Bijan Dehghani, MD, MS, Mitchell Hallman, MD, Samir Mehta, MD

Department Updates

Spine Division Update
Amrit Khalsa, MD

Hand Division Update
David J. Bozentka, MD

Shoulder and Elbow Division Update
David L. Glaser, MD

Adult Reconstruction Division Update
Charles L. Nelson, MD

Foot and Ankle Division Update
Casey Jo Humbyrd, MD, MBE

Orthopaedic Oncology Division Update
Cara A. Cipriano, MD, MSc

Children’s Hospital of Philadelphia Update
Divya Talwar, PhD, MPH and John M. Flynn, MD

Health System Updates

Corporal Michael J. Crescenz Veterans Affairs Medical Center Update
David R. Steinberg, MD

Pennsylvania Hospital Update
Neil P. Sheth, MD, FACS

Penn Center for Musculoskeletal Disorders Update
Louis J. Soslowsky, PhD

Clinical Research Section Update
Annamarie D. Horon, MPA, PhD

Resident & Fellow Updates

Resident and Fellow Updates
Current Residents

Clinical Research


Schatzker IV Tibial Plateau Fracture after Taser Utilization: A Case Report and Review of the Literature
Sand Mastrangelo, MD, Ellis Berns, MD, Cole Headen, BS, and Derek Donegan, MD, MBA


Evaluation and Initial Workup Guide of Spine Trauma Patients for Orthopaedic Surgery Residents
Aymen Alqazzaz, MD, Bradley Osemwengie, MD, David Casper, MD, and Amrit Khalsa, MD


Sports Tips & Tricks: Arthroscopic Repair of Massive Rotator Cuff Tear
Cody Hansen, MD and John D Kelly IV, MD


Hand Tips & Tricks: External Fixation of the Hand
Thompson Zhuang, MD, MBA, and Andrew D. Sobel, MD

Shoulder and Elbow

Management Techniques for Posterior Shoulder Dislocations: A Discussion and Case
Kathleen Collins, MD, Bradley Osemwengie, MD, Weston Smith, MD, and John Horneff, MD

Consumer Interest in Shoulder Replacement Surgery: A Google TrendsTM Analysis From 2013 to 2023
Ryan Lopez, Holt Cutler, MD, Radhika Gupta, and John Gabriel Horneff, MD, FAAOS

Foot & Ankle

Human Placental Allograft: Does it Decrease Postoperative Pain in Tendon Repair and Debridement?
Caroline Granruth, MD, MPH, Sand Mastrangelo, MD, and Anthony Ndu, MD


The Harrington Reconstruction for Patients with Advanced Periacetabular Metastatic Disease
Sand Mastrangelo, MD, Caroline Granruth, MD, and Cara Cipriano, MD


Orthoplastics Tips & Tricks: Orthoplastics Tips and Tricks: Medial Femoral Condyle Vascularized Bone Graft for Scaphoid Nonunion: A Case Report
Erin Hale, MD, Dainn Woo, MD, Ines C. Lin, MD, and L Scott Levin MD


Arthroplasty Tips & Tricks: Diaphyseal Impaction Grafting and Metaphyseal Cone for Severe Tibial Bone Loss in Revision Knee
Ashleigh Bush, MD, Brian Velasco, MD, Jim Foster MD, Alyssa Thorman, MD, and Charles Nelson MD


Pediatrics Tips & Tricks: Essentials of the Brachial Plexus Physical Examination in Newborns
Rachel Flaugh, MD, Kevin J. Orellana, BS, and Apurva S. Shah, MD, MBA

Post-Traumatic Carpal Tunnel Syndrome in Children
Julianna Lee, BA, Eliza Buttrick, BA, and Apurva S. Shah, MD, MBA

Risk Factors and Outcomes of Neonatal Radial Nerve Palsy
Kevin J Orellana, BS, Meagan Pehnke, MS, OTR/L, Eliza Buttrick, BA, Zoe E Belardo, BA, Sandra Schmieg, MS, OTR/L, and Apurva S Shah, MD, MBA

Clinical Relevance of Anterior Cruciate Ligament Tears in Skeletally Immature Patients: Incidence and Co-morbidities
Chang Ho Shin, MD, Bijan Dehghani, MD, MS, and Theodore J. Ganley, MD

Pediatric Tibial Spine Fractures: Current Research and Debates
Alexandra Stevens, BS, Joseph Yellin, MD, Soroush Baghdadi, MD, and Theodore J. Ganley, MD

Tibial Tubercle Osteotomy in the Management of Patellofemoral Instability—A Review of Radiographic Indications at Two Children’s Hospitals
Kevin J. Orellana, BS, Akbar N. Syed, MD, David Kell, BS, Alexandra Dejneka, BS, Max Jacobs, BS, Neeraj M. Patel, MD, MPH, MBS, J. Todd Lawrence, MD, PHD, Theodore J. Ganley, MD, and Brendan A. Williams MD

Basic Science

Bone & Development

Injectable Radiopaque Hyaluronic Acid Granular Hydrogels for Intervertebral Disc Repair
Victoria G. Muir, Rachel Hillard, Thomas P. Schaer, Jason A. Burdick, and Sarah E. Gullbrand

Functionally Graded Lattices in Additively Manufactured Rib Implants Result in Similar Biomechanics
Richa Gupta, Lauren Judkins, Chet S. Friday, Joseph B. Ulsh, Stephen Kovach, Samir Mehta, Charles Tomonto, Guha Manogharan, and Michael W. Hast

Cartilage, Meniscus & Disc

Nanoparticles ‘Clicked’ onto Nanofibrous Scaffolds for Meniscal Repair
Emily E. Sharp, Ryan C. Locke, Bian Jang, Tao Gui, Su Jin Heo, Nathaniel Dyment, Zhiliang Cheng, Ling Qin, and Robert L. Mauck

Muscle, Tendon & Ligament

Inducible Rosa, but not aSMA or Scx, Cre Driven Excision Achieves Substantial Col12a1 Knockdown in Tendon Healing
Alexander J. Bein, Ashley K. Fung, Stephanie N. Weiss, Nathaniel A. Dyment, and Louis J. Soslowsky

Scleraxis Targeted Deletion of Collagen XI Impairs Tendon Mechanical Function During Postnatal Development
Jordan S. Cohen, Ashley K. Fung, Stephanie N. Weiss, Nathaniel A. Dyment, and Louis J. Soslowsky

Tendon-Targeted Collagen XII Knockout Attenuates Male and Female Achilles Tendon Function Similarly
Michael S. DiStefano, BS, and Louis J. Soslowsky, PhD

Collagen XII Regulates Cell and Matrix Organization and Structure During Postnatal Tendon Development
Ashley K. Fung, BS, Nathaniel A. Dyment, PhD, and Louis J. Soslowsky, PhD

Focal Adhesion Kinase Regulates Mechanosensitive Gene Transcription and Tendon Maturation
Thomas P. Leahy, BS, Srish S. Chenna, Louis J. Soslowsky, PhD, and Nathaniel A. Dyment, PhD

Collagen XII is a Critical Regulator of Supraspinatus Tendon Mechanics and Collagen Fiber Realignment Across Sex
Michael S. DiStefano, BS, Stephanie N. Weiss, BS, Andrew F. Kuntz, MD, and Louis J. Soslowsky, PhD

The Mechanosensor Focal Adhesion Kinase Regulates Cell Shape and Tendon Development
Thomas P. Leahy, BS, Srish S. Chenna, Louis J. Soslowsky, PhD, and Nathaniel A. Dyment, PhD

Collagen III Haploinsufficiency Alters Fibril Size but Not Mechanical Properties in Uninjured, Young Adult Male Murine Tendons
Margaret K. Tamburro, BS, Jaclyn A. Carlson, PhD, Stephanie N. Weiss, BS, Susan W. Volk, PhD, and Louis J. Soslowsky PhD

Loading Levels in Patellar Tendon, Quadriceps Tendon, and Patellofemoral Joint Across 35 Rehabilitation Exercises
Ke Song, PhD, Rodrigo Scattone Silva, PT, MSc, PhD, Todd J. Hullfish, BS, Karin Grävare Silbernagel, PT, ATC, PhD, and Josh R. Baxter, PhD