American Journal of Sports Medicine




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Increasing the Quality of Our Evidence Through Collaboration and Mentorship

Theodore J. Ganley, MD

doi : 10.1177/03635465211034447

Volume: 49 issue: 10, page(s): 2587-2588

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Association Between Graft Choice and 6-Year Outcomes of Revision Anterior Cruciate Ligament Reconstruction in the MARS Cohort

MARS Group*, Rick W. Wright, MD, Laura J. Huston, MS, Amanda K. Haas, MA, Jacquelyn S. Pennings, PhD, Christina R. Allen, MD, Daniel E. Cooper, MD, Thomas M. DeBerardino, MD, Warren R. Dunn, MD, MPH, Brett (Brick) A. Lantz, MD, Kurt P. Spindler, MD, Michael J. Stuart, MD, John P. Albright, MD, Annunziato (Ned) Amendola, MD, Jack T. Andrish, MD, Christopher C. Annunziata, MD, Robert A. Arciero, MD, Bernard R. Bach Jr, MD, Champ L. Baker, III, MD, Arthur R. Bartolozzi, MD, Keith M. Baumgarten, MD, Jeffery R. Bechler, MD, Jeffrey H. Berg, MD, Geoffrey A. Bernas, MD, Stephen F. Brockmeier, MD, Robert H. Brophy, MD, Charles A. Bush-Joseph, MD, J. Brad Butler V, MD, John D. Campbell, MD, James L. Carey, MD, MPH, James E. Carpenter, MD, Brian J. Cole, MD, Jonathan M. Cooper, DO, Charles L. Cox, MD, MPH, R. Alexander Creighton, MD, Diane L. Dahm, MD, Tal S. David, MD, David C. Flanigan, MD, Robert W. Frederick, MD, Theodore J. Ganley, MD, Elizabeth A. Garofoli, Charles J. Gatt, Jr, MD, Steven R. Gecha, MD, James Robert Giffin, MD, Sharon L. Hame, MD, Jo A. Hannafin, MD, PhD, Christopher D. Harner, MD, Norman Lindsay Harris, Jr, MD, Keith S. Hechtman, MD, Elliott B. Hershman, MD, Rudolf G. Hoellrich, MD, David C. Johnson, MD, Timothy S. Johnson, MD, Morgan H. Jones, MD, Christopher C. Kaeding, MD, Ganesh V. Kamath, MD, Thomas E. Klootwyk, MD, Bruce A. Levy, MD, C. Benjamin Ma, MD, G. Peter Maiers, II, MD, Robert G. Marx, MD, Matthew J. Matava, MD, Gregory M. Mathien, MD, David R. McAllister, MD, Eric C. McCarty, MD, Robert G. McCormack, MD, Bruce S. Miller, MD, MS, Carl W. Nissen, MD, Daniel F. O’Neill, MD, EdD, Brett D. Owens, MD, Richard D. Parker, MD, Mark L. Purnell, MD, Arun J. Ramappa, MD, Michael A. Rauh, MD, Arthur C. Rettig, MD, Jon K. Sekiya, MD, Kevin G. Shea, MD, Orrin H. Sherman, MD, James R. Slauterbeck, MD, Matthew V. Smith, MD, Jeffrey T. Spang, MD, LTC Steven J. Svoboda, MD, Timothy N. Taft, MD, Joachim J. Tenuta, MD, Edwin M. Tingstad, MD, Armando F. Vidal, MD, Darius G. Viskontas, MD, Richard A. White, MD, James S. Williams Jr, MD, Michelle L. Wolcott, MD, Brian R. Wolf, MD, James J. York, MD

doi : 10.1177/03635465211027170

Volume: 49 issue: 10, page(s): 2589-2598

Although graft choice may be limited in the revision setting based on previously used grafts, most surgeons believe that graft choice for anterior cruciate ligament (ACL) reconstruction is an important factor related to outcome.

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Association Between Psychological Readiness and Knee Laxity and Their Predictive Value for Return to Sport in Patients With Anterior Cruciate Ligament Reconstruction

Anne Gro Heyn Faleide, PT, MSc*, â€ , â€¡, Liv Heide Magnussen, PT, Prof.§, BÃ¥rd Erik Bogen, PT, PhD†, Â§, Torbjørn Strand, MD†, Ingunn Fleten Mo, PT, MSc†, Willemijn Vervaat, PT, MSc‖, Eivind Inderhaug, MD, MPH, PhD‡, â€–

doi : 10.1177/03635465211021831

Volume: 49 issue: 10, page(s): 2599-2606

Deciding when patients are ready to return to sport (RTS) after an anterior cruciate ligament (ACL) reconstruction (ACLR) is challenging. The understanding of which factors affect readiness and how they may be related is limited. Therefore, despite widespread use of RTS testing, there is a lack of knowledge about which tests are informative on the ability to resume sports.

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Running Biomechanics Before Injury and 1 Year After Anterior Cruciate Ligament Reconstruction in Division I Collegiate Athletes

Keith A. Knurr, PT, DPT*, â€ , Stephanie A. Kliethermes, PhD*, â€ , Mikel R. Stiffler-Joachim, MS*, â€ , Daniel G. Cobian, PT, DPT, PhD*, â€ , Geoffrey S. Baer, MD, PhD*, â€ , Bryan C. Heiderscheit, PT, PhD*, â€ , â€¡Â§

doi : 10.1177/03635465211026665

Volume: 49 issue: 10, page(s): 2607-2614

Preinjury running biomechanics are an ideal comparator for quantifying recovery after anterior cruciate ligament (ACL) reconstruction (ACLR), allowing for assessments within the surgical and nonsurgical limbs. However, availability of preinjury running biomechanics is rare and has been reported in case studies only.

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Clinical-Grade MRI-Based Methods to Identify Combined Anatomic Factors That Predict ACL Injury Risk in Male and Female Athletes

Mélanie L. Beaulieu, PhD*, â€ , Emma K. Nowak‡, Bruce D. Beynnon, PhD§, James A. Ashton-Miller, PhD‖, Â¶, Daniel R. Sturnick, MS#, Edward M. Wojtys, MD†

doi : 10.1177/03635465211024249

Volume: 49 issue: 10, page(s): 2615-2623

Recently developed multivariate sex-specific statistical models can predict anterior cruciate ligament (ACL) injury risk using various knee anatomic factors. However, screening tools able to identify individuals at an increased injury risk are unlikely to be developed based on these models, given that sophisticated and time-consuming methods were used to measure those factors on research-grade resolution magnetic resonance images (MRIs).

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Association of Geometric Characteristics of Knee Anatomy (Alpha Angle and Intercondylar Notch Type) With Noncontact ACL Injury

Michael S. Barnum, BS*, Evan D. Boyd, MD*, Pamela Vacek, PhD†, James R. Slauterbeck, MD*, Bruce D. Beynnon, MS, PhD*‡

doi : 10.1177/03635465211023750

Volume: 49 issue: 10, page(s): 2624-2630

The femoral intercondylar notch type and the alpha angle (the angle between the femoral notch roof and the long axis of the femur) are easily measured in clinical settings; however, their associations with anterior cruciate ligament (ACL) injury remain unclear.

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Neither Residual Anterior Knee Laxity Up to 6 mm nor a Pivot Glide Predict Patient-Reported Outcome Scores or Subsequent Knee Surgery Between 2 and 6 Years After ACL Reconstruction

Robert A. Magnussen, MD, MPH*, Emily K. Reinke, PhD, Laura J. Huston, MS, MOON Knee Group, Isaac Briskin, MA, Charles L. Cox, MD, MPH, Warren R. Dunn, MD, MPH, David C. Flanigan, MD, Morgan H. Jones, MD, MPH, Christopher C. Kaeding, MD, Matthew J. Matava, MD, Richard D. Parker, MD, Matthew V. Smith, MD, Rick W. Wright, MD, Kurt P. Spindler, MD

doi : 10.1177/03635465211025003

Volume: 49 issue: 10, page(s): 2631-2637

A primary goal of anterior cruciate ligament reconstruction (ACLR) is to reduce pathologically increased anterior and rotational laxity of the knee, but the effects of residual laxity on patient-reported outcomes (PROs) after ACLR remain unclear.

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Bilateral Squatting Mechanics Are Associated With Landing Mechanics in Anterior Cruciate Ligament Reconstruction Patients

Alexander T. Peebles, PhD, D.S., Blaise Williams, III, PhD, Robin M. Queen, PhD§

doi : 10.1177/03635465211023761

Volume: 49 issue: 10, page(s): 2638-2644

Proper lower extremity biomechanics during bilateral landing is important for reducing injury risk in athletes returning to sports after anterior cruciate ligament reconstruction (ACLR). Although landing is a quick ballistic movement that is difficult to modify, squatting is a slower cyclic movement that is ideal for motor learning.

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Cell-Free Biomimetic Osteochondral Scaffold for the Treatment of Knee Lesions: Clinical and Imaging Results at 10-Year Follow-up

Alessandro Di Martino, MD, Francesco Perdisa, MD‡, Giuseppe Filardo, MD, PhD, Prof., Maurizio Busacca, MD, Elizaveta Kon, MD, Prof., Maurilio Marcacci, MD, Prof., Stefano Zaffagnini, MD, Prof.

doi : 10.1177/03635465211029292

Volume: 49 issue: 10, page(s): 2645-2650

Cell-free devices have been introduced to restore osteochondral defects, avoiding the limitations of cell-based procedures. Among these, an osteochondral scaffold made of type I collagen and hydroxyapatite has been investigated with promising results up to medium-term follow-up. However, the clinical and imaging results over time still need to be documented.

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Change of Direction Biomechanics in a 180-Degree Pivot Turn and the Risk for Noncontact Knee Injuries in Youth Basketball and Floorball Players

Mari Leppänen, PhD*, Jari Parkkari, MD, PhD, Tommi Vasankari, MD, PhD, Sami Äyrämö, PhD, Juha-Pekka Kulmala, PhD, Tron Krosshaug, PhD, Pekka Kannus, MD, PhD, Kati Pasanen, PT, MSc, PhD

doi : 10.1177/03635465211026944

Volume: 49 issue: 10, page(s): 2651-2658

Studies investigating biomechanical risk factors for knee injuries in sport-specific tasks are needed.

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Minimum 2-Year Functional Outcomes of Patients Undergoing Capsular Autograft Hip Labral Reconstruction

Michael P. Kucharik, BS*, Paul F. Abraham, MD, Mark R. Nazal, MD, Nathan H. Varady, MD, MBA, Wendy M. Meek, BBA, Scott D. Martin, MD

doi : 10.1177/03635465211026666

Volume: 49 issue: 10, page(s): 2659-2667

There is a paucity of literature on arthroscopic capsular autograft labral reconstruction.

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Predicting the Risk of Subsequent Hip Surgery Before Primary Hip Arthroscopy for Femoroacetabular Impingement Syndrome: A Machine Learning Analysis of Preoperative Risk Factors in Hip Preservation

Heather S. Haeberle, MD, Prem N. Ramkumar, MD, MBA§, Jaret M. Karnuta, MD, MS, Spencer Sullivan, BS, Ernest L. Sink, MD, Bryan T. Kelly, MD, MBA, Anil S. Ranawat, MD, Benedict U. Nwachukwu, MD, MBA

doi : 10.1177/03635465211024964

Volume: 49 issue: 10, page(s): 2668-2676

The number of patients requiring reoperation has increased as the volume of hip arthroscopy for femoroacetabular impingement syndrome (FAIS) has increased. The factors most important in determining patients who are likely to require reoperation remain elusive.

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The Validity, Reliability, and Responsiveness of the International Hip Outcome Tool–33 (iHOT-33) in Patients With Hip and Groin Pain Treated Without Surgery

Mark J. Scholes, PT, Matthew G. King, PT, PhD, Kay M. Crossley, PT, PhD, Denise M. Jones, PT, PhD, Adam I. Semciw, PT, PhD, Benjamin F. Mentiplay, PhD, Joshua J. Heerey, PT, PhD, Peter R. Lawrenson, PT, PhD, Sally L. Coburn, PT, Richard T.R. Johnston, PT, PhD, Emily C. Bell, PT, Michael Girdwood, PT, Joanne L. Kemp, PT, PhD‡

doi : 10.1177/03635465211027180

Volume: 49 issue: 10, page(s): 2677-2688

The International Hip Outcome Tool–33 (iHOT-33) was developed to evaluate patients seeking surgery for hip and/or groin (hip/groin) pain and may not be appropriate for those seeking nonsurgical treatment.

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Early Weightbearing Versus Nonweightbearing After Operative Treatment of an Ankle Fracture: A Multicenter, Noninferiority, Randomized Controlled Trial

Jae Yong Park, MD, PhD, Bom Soo Kim, MD, PhD, Yu Mi Kim, MD, PhD, Jae Ho Cho, MD, PhD, Young Rak Choi, MD, Hyong Nyun Kim, MD, PhD#

doi : 10.1177/03635465211026960

Volume: 49 issue: 10, page(s): 2689-2696

Acute ankle fractures can occur during sports activities, and unstable ankle fractures are commonly treated operatively. However, controversy exists about the optimal time to allow weightbearing.

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Lateral Ligament Reconstruction With Hamstring Graft for Ankle Instability: Outcomes for Primary and Revision Cases

Stephanie K. Eble, BA*, Oliver B. Hansen, BA, Karan A. Patel, MD, Mark C. Drakos, MD

doi : 10.1177/03635465211026969

Volume: 49 issue: 10, page(s): 2697-2706

Optimal treatment for patients with severe ankle instability or failed previous ankle stabilization is not well defined, and newer techniques have limited presence in the literature.

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Limited Scar Resection for Chronic Achilles Tendon Repair: Use of a Rat Model

Matthew Counihan, MD, Thomas Leahy, BS, Courtney Nuss, AS, Joseph Newton, BS, Sarthak Mohanty, BS, Louis J. Soslowsky, PhD‡, Daniel Farber, MD

doi : 10.1177/03635465211023096

Volume: 49 issue: 10, page(s): 2707-2715

Achilles tendon rupture diagnosis is frequently missed, leading to the development of a chronic rupture that requires surgical intervention to remove scar tissue and return the elongated Achilles tendon to appropriate functional length. The limited scar resection (LSR) intervention strategy may provide an advantage over other techniques, as it is less invasive and nondestructive to other tissues, although there is little evidence comparing outcomes between intervention strategies.

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Blood Flow Restriction Training for the Shoulder: A Case for Proximal Benefit

Bradley Lambert, PhD*, Corbin Hedt, DPT, Joshua Daum, BS, Carter Taft, BS, Kalyan Chaliki, BS, Eden Epner, BS, Patrick McCulloch, MD

doi : 10.1177/03635465211017524

Volume: 49 issue: 10, page(s): 2716-2728

Although blood flow restriction (BFR) is becoming increasingly popular in physical therapy and athletic training settings, little is known about the effects of BFR combined with low-intensity exercise (LIX) on muscles proximal to the site of occlusion.

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Rehabilitation Exercises for Dysfunction of the Scapula: Exploration of Muscle Activity Using Fine-Wire EMG

Kelly R. Berckmans, PT*, Birgit Castelein, PT, PhD, Dorien Borms, PT, PhD, Thierry Parlevliet, MD, Ann Cools, PT, PhD

doi : 10.1177/03635465211025002

Volume: 49 issue: 10, page(s): 2729-2736

Scapular muscle activity during shoulder exercises has been explored with surface electromyography (EMG). However, knowledge about the activity of deeper-layer scapular muscles is still limited.

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Factor Structure of the Shoulder Instability Return to Sport After Injury Scale: Performance Confidence, Reinjury Fear and Risk, Emotions, Rehabilitation and Surgery

Margie Olds, PhD*, Kate E. Webster, PhD

doi : 10.1177/03635465211024924

Volume: 49 issue: 10, page(s): 2737-2742

Rates of return to play after shoulder dislocation vary between 48% and 96%, and there has been scant attention given to the psychosocial factors that influence return to play after a shoulder injury.

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Chondral Damage After Arthroscopic Repair Techniques for Acute Bony Bankart Lesions: A Biomechanical Study

Alexander S. Greenstein, MD*, Raymond E. Chen, MD*, Alexander M. Brown, MD*, Emma Knapp, BS*, Aaron Roberts, MD*,  Hani A. Awad, PhD*,  Ilya Voloshin, MD*†

doi : 10.1177/03635465211023758

Volume: 49 issue: 10, page(s): 2743-2750

Bony Bankart lesions can be encountered during treatment of shoulder instability. Current arthroscopic bony Bankart repair techniques involve intra-articular suture placement, but the effect of these repair techniques on the integrity of the humeral head articular surface warrants further investigation.

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Arthroscopic Superior Capsular Reconstruction for Older Patients With Irreparable Rotator Cuff Tears: A Comparative Study With Younger Patients

Erica Kholinne, MD, PhD*, Jae-Man Kwak, MD†, Chang-Ho Cho, MD‡, Khalid AlSomali, MD§, Thanh Van Nguyen, MD‖, Hyojune Kim, MD‡, Kyoung-Hwan Koh, MD, PhD‡, In-Ho Jeon, MD, PhD‡¶

doi : 10.1177/03635465211024652

Volume: 49 issue: 10, page(s): 2751-2759

Arthroscopic superior capsular reconstruction (ASCR) is a method for treating irreparable chronic rotator cuff tears. However, the extent to which ASCR can be performed with regard to the patient’s age has yet to be determined.

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Distinct Gene Expression Profile in Patients With Poor Postoperative Outcomes After Rotator Cuff Repair: A Case-Control Study

Jessica M. Eager, MS*, William J. Warrender, MD†, Carly B. Deusenbery, BS*, Grant Jamgochian, BS†, Arjun Singh, BS†, Joseph A. Abboud, MD†‡, Kara L. Spiller, PhD*‡

doi : 10.1177/03635465211023212

Volume: 49 issue: 10, page(s): 2760-2770

Impaired healing after rotator cuff repair is a major concern, with retear rates as high as 94%. A method to predict whether patients are likely to experience poor surgical outcomes would change clinical practice. While various patient factors, such as age and tear size, have been linked to poor functional outcomes, it is currently very challenging to predict outcomes before surgery.

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Single Assessment Numeric Evaluation Correlates with American Shoulder and Elbow Surgeons Score for Common Elbow Pathology: A Retrospective Cohort Study

Manan Sunil Patel, BA*, â€ , Jacob M. Kirsch, MD†, Michael J. Gutman, BA†, Richard M. McEntee, BS†, Frank Alberta, MD†, Matthew L. Ramsey, MD†, Joseph A. Abboud, MD†, Surena Namdari, MSc, MD†

doi : 10.1177/03635465211024253

Volume: 49 issue: 10, page(s): 2771-2777

There are currently a variety of patient-reported outcomes (PROs) for elbow pathology, without any established gold standard. The Single Assessment Numeric Evaluation (SANE) is a single question assessment of the patient’s perceived overall function compared with normal. The SANE score has been correlated with PROs from the shoulder and knee literature.

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Association Between 45° Flexion Anteroposterior Elbow Radiographs and Diagnostic Accuracy of Capitellum Osteochondritis Dissecans

Michael G. Saper, DO, ATC*, â€ , Viviana Bompadre, PhD†, Gregory A. Schmale, MD†, Sarah Menashe, MD‡, Monique Burton, MD†, Kyle Nagle, MD, MPH†, Mahesh Thapa, MD, MEd‡

doi : 10.1177/03635465211027178

Volume: 49 issue: 10, page(s): 2778-2782

An anteroposterior (AP) radiograph of the elbow in 45° of flexion has been suggested to increase the diagnostic accuracy of capitellum osteochondritis dissecans (OCD).

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Chronic Sequelae After Muscle Strain Injuries: Influence of Heavy Resistance Training on Functional and Structural Characteristics in a Randomized Controlled Trial

Monika L. Bayer, PhD*, â€ , â€¡, Maren Hoegberget-Kalisz, MD, MSc†, â€¡, Rene B. Svensson, PhD†, â€¡, Mikkel H. Hjortshoej, PT, MSc†, â€¡, Â§, Jens L. Olesen, MD, PhD, PhD†, â€¡, â€–, Janus D. Nybing, MSc¶, Mikael Boesen, MD, PhD¶, S. Peter Magnusson, PT, PhD, DMSc†, â€¡, Â§, Michael Kjaer, MD, PhD, DMSc†, â€¡

doi : 10.1177/03635465211026623

Volume: 49 issue: 10, page(s): 2783-2794

Muscle strain injury leads to a high risk of recurrent injury in sports and can cause long-term symptoms such as weakness and pain. Scar tissue formation after strain injuries has been described, yet what ultrastructural changes might occur in the chronic phase of this injury have not. It is also unknown if persistent symptoms and morphological abnormalities of the tissue can be mitigated by strength training.

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Intra-articular Injection of Kartogenin-Enhanced Bone Marrow–Derived Mesenchymal Stem Cells in the Treatment of Knee Osteoarthritis in a Rat Model

Wei-Nan Zeng, MD, PhD*, â€ , â€¡, Yun Zhang, MD§, Duan Wang, MD*, Yi-Ping Zeng, MChem†, Hao Yang, MD‖, Juan Li, BB‖, Cheng-Pei Zhou, MM¶, Jun-Li Liu, MD†, Qing-Jun Yang, MD†#, Zhong-Liang Deng, MD‡#, Zong-Ke Zhou, MD*#

doi : 10.1177/03635465211023183

Volume: 49 issue: 10, page(s): 2795-2809

In this study, we investigated the in vitro and in vivo chondrogenic capacity of kartogenin (KGN)–enhanced bone marrow–derived mesenchymal stem cells (BMSCs) for cartilage regeneration.

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Removal From Activity After Sports- Related Concussion in Sex-Comparable Sports From the Michigan High School Athletic Association

 Aaron J. Zynda, BS, CCRP*, â€ , Kyle M. Petit, PhD, ATC‡, Morgan Anderson, MS†, Christopher P. Tomczyk, MS, ATC†, Tracey Covassin, PhD, ATC†

doi : 10.1177/03635465211020007

Volume: 49 issue: 10, page(s): 2810-2816

Research has demonstrated that female athletes are more likely to report their sports-related concussion (SRC) symptoms compared with male athletes; however, it is unknown if these reporting behaviors correspond to immediate removal from activity in sex-comparable sports.

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Head Impact Biomechanics in Youth Flag Football: A Prospective Cohort Study

Landon B. Lempke, PhD, ATC*, â€ , â€¡, Rachel S. Johnson, MS, ATC*, Rachel K. Le, MS, ATC*, Melissa N. Anderson, MS*, Julianne D. Schmidt, PhD, ATC*, Robert C. Lynall, PhD, ATC*§

doi : 10.1177/03635465211026643

Volume: 49 issue: 10, page(s): 2817-2826

Youth flag football participation has rapidly grown and is a potentially safer alternative to tackle football. However, limited research has quantitatively assessed youth flag football head impact biomechanics.

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The Statistical Fragility of Hamstring Versus Patellar Tendon Autografts for Anterior Cruciate Ligament Reconstruction: A Systematic Review of Comparative Studies

Cooper B. Ehlers, MS*, â€ , Andrew J. Curley, MD‡, Nathan P. Fackler, MS†, Arjun Minhas, MS†, Edward S. Chang, MD§

doi : 10.1177/0363546520969973

Volume: 49 issue: 10, page(s): 2827-2833

Evidence-based medicine utilizes data to inform clinical decision making, despite the ability of a small number of outcome reversals to change statistical significance. P values are common measurements of statistical significance that possess inherent flaws. The inclusion of the fragility index (FI) and fragility quotient (FQ) may provide a clearer conveyance of statistical strength.

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Outcomes After Arthroscopic Surgery for Anterior Impingement in the Ankle Joint in the General and Athletic Populations: Does Sex Play a Role?

Arianna L. Gianakos, DO*, â€ , Axel Ivander, BS‡, Christopher W. DiGiovanni, MD§, John G. Kennedy, MD‡

doi : 10.1177/0363546520980096

Volume: 49 issue: 10, page(s): 2834-2842

Although anterior ankle impingement is a common pathology within the athletic population, there have been limited data evaluating outcomes of arthroscopic intervention and whether patient sex affects treatment outcomes.

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Scapular Dyskinesis Is Not an Isolated Risk Factor for Shoulder Injury in Athletes: A Systematic Review and Meta-analysis

Campbell Hogan, B Biomedical Science (Hons), B Physiotherapy (Hons)*, â€ , Jo-Anne Corbett, B Physiotherapy (Hons), Grad. Cert. Health Professional Ed.†, Simon Ashton, B Physiotherapy (Hons)†, Luke Perraton, PhD†, Rachel Frame, B Exercise and Sports Science, B Physiotherapy (Hons)†, Jodie Dakic, B Physiotherapy (Hons), PGCertPhysio (PFPhysio)†

doi : 10.1177/0363546520968508

Volume: 49 issue: 10, page(s): 2843-2853

Scapular dyskinesis has been considered a risk factor for athletic shoulder injury; however, findings in the prospective literature have demonstrated mixed results.

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Time-Dependent Effect of Platelet-Rich Plasma in Reducing Donor-Site Pain After Anterior Cruciate Ligament Reconstruction

André Luís Lugnani de Andrade, MD, PhD*, â€ , Amanda Veiga Sardeli, BSc, MSc, PhD‡, Thiago Alves Garcia, BSc, MSc§, Bruno Livani, MD, PhD†, William Dias Belangero, MD, PhD†

doi : 10.1177/0363546520968289

Volume: 49 issue: 10, page(s): 2854-2858

Anterior cruciate ligament reconstruction (ACLR) has a high incidence among sports players, and one important side effect of the surgery is graft donor site morbidity. Although some evidence suggests that application of platelet-rich plasma (PRP) during ACLR reduces pain and improves knee function, it is not a universal finding.

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Society News

doi : 10.1177/03635465211033592

Volume: 49 issue: 10, page(s): 2859-2859

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Posterior Tibial Slope in Patients Undergoing Anterior Cruciate Ligament Reconstruction With Patellar Tendon Autograft: Letter to the Editor

Thomas L. Wickiewicz, MD, Russell F. Warren, MD, Carl W. Imhauser, PhD, Hollis G. Potter, MD

doi : 10.1177/03635465211025274

Volume: 49 issue: 10, page(s): NP52-NP53

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Posterior Tibial Slope in Patients Undergoing Anterior Cruciate Ligament Reconstruction With Patellar Tendon Autograft: Response

K. Donald Shelbourne, MD, Rodney W. Benner, MD, Jonathan A. Jones, Tinker Gray, MA

doi : 10.1177/03635465211025265

Volume: 49 issue: 10, page(s): NP53-NP53

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Coronal Lateral Collateral Ligament Sign: Letter to the Editor

Andy Williams, MB, BS, FRCS(Orth.), FFSEM(UK), Justin Lee, MB, BS, MRCS, FRCR, Adam Mitchell, MB, BS, FRCS, FRCR

doi : 10.1177/03635465211030202

Volume: 49 issue: 10, page(s): NP54-NP54

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Coronal Lateral Collateral Ligament Sign: Response

Eric W. Edmonds, MD, Brendon C. Mitchell, MD

doi : 10.1177/03635465211030209

Volume: 49 issue: 10, page(s): NP54-NP55

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