Editorial
Happy New Year!
Edward M. Wojtys
Focus Topic: Controversies in Sports Medicine
The Curveball as a Risk Factor for Injury: A Systematic Review
W. Jeffrey Grantham, Jaicharan J. Iyengar, Ian R. Byram, and Christopher S. Ahmad
Cell Therapy in Joint Disorders
Peter D. Counsel, Daniel Bates, Richard Boyd, and David A. Connell
Current Concepts: The Role of Mesenchymal Stem Cells in the Management of Knee Osteoarthritis
Jesse I. Wolfstadt, Brian J. Cole, Darrell J. Ogilvie-Harris, Sowmya Viswanathan, and Jaskarndip Chahal
Ability of Preseason Body Composition and Physical Fitness to Predict the Risk of Injury in Male Collegiate Hockey Players
John A. Grant, Asheesh Bedi, Jennifer Kurz, Richard Bancroft, Joel J. Gagnier, and Bruce S. Miller
Protracted Recovery From a Concussion: A Focus on Gender and Treatment Interventions in an Adolescent Population
Regina O. Kostyun and Imran Hafeez
Current Research
A Double-Blinded Placebo Randomized Controlled Trial Evaluating Short-term Efficacy of Platelet-Rich Plasma in Reducing Postoperative Pain After Arthroscopic Rotator Cuff Repair: A Pilot Study
Alisha Hak, Krishan Rajaratnam, Olufemi R. Ayeni, Jaydeep Moro, Devin Peterson, Sheila Sprague, and Mohit Bhandari
Injury and Treatment Characteristics of Sport-Specific Injuries Sustained in Interscholastic Athletics: A Report From the Athletic Training Practice-Based Research Network
Kenneth C. Lam, Alison R. Snyder Valier, and Tamara C. Valovich McLeod
Muscular Activation During Plyometric Exercises in 90° of Glenohumeral Joint Abduction
Todd S. Ellenbecker, Tetsuro Sueyoshi, and David S. Bailie
Life Span Exercise Among Elite Intercollegiate Student Athletes
Shawn C. Sorenson, Russell Romano, Stanley P. Azen, E. Todd Schroeder, and George J. Salem
Shoulder Arthroplasty: Return to Sport
M. Michael Khair, Joshua S. Dines, and David M. Dines
