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Successful Medial Meniscal Repair Reduces Knee Pain 10 Years After Anterior Cruciate Ligament Reconstruction: Exploring the Consequences of Subsequent Surgery With Causal Mediation Analysis in the MOON Cohort Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-13
Andrew J. Sheean, Yuxuan Jin, Annunziato Amendola, Laura J. Huston, Robert H. Brophy, Charles L. Cox, Morgan H Jones, Christopher C. Kaeding, Michael W. Kattan, Robert A. Magnussen, Robert G. Marx, Matthew J. Matava, Eric C. McCarty, Richard D. Parker, Emily Reinke, Michelle L. Wolcott, Brian R. Wolf, Rick W. Wright, Kurt P. SpindlerBackground:Medial meniscal repair performed at the time of primary anterior cruciate ligament reconstruction (ACLR) has been shown to be significantly associated with subsequent surgery, and subsequent surgery has been associated with increased Knee injury and Osteoarthritis Outcome Score (KOOS) pain score and decreased patient satisfaction.Hypothesis/Purpose:The purpose was to determine if medial
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Radiological Risk Factors for Osteochondral Fractures in Patients With First-Time and Recurrent Patellar Instability: Data From the JUPITER Cohort Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-13
James J. McGinley, Henry B. Ellis, Bennett Propp, Matthew W. Veerkamp, Philip L. Wilson, Dennis E. Kramer, Benton E. Heyworth, Sabrina Strickland, Eric Wall, Jason Koh, Yi-Meng Yen, Matthew Halsey, Robert Magnussen, David Roberts, Jack Farr, Daniel Green, Peter Fabricant, Jacqueline Brady, Marc Tompkins, Lauren H. Redler, Adam B. Yanke, Seth L. Sherman, Shital N. Parikh, Beth E. Shubin SteinBackground:Radiological risk factors for an osteochondral fracture (OCF) associated with patellar instability are rarely studied, particularly in patients with recurrent instability.Purpose:To identify specific radiological characteristics that relate to the increased prevalence of OCFs associated with patellar instability.Study Design:Case-control study; Level of evidence, 3.Methods:Patient data (n
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Biomechanical Evaluation and Surface Analysis of Glenoid Reconstruction Using a Subtalar Joint Allograft for Significant Glenoid Bone Loss in Recurrent Shoulder Instability: A Novel Alternative Graft Option Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-11
Phob Ganokroj, Justin F.M. Hollenbeck, Marco Adriani, Ryan J. Whalen, Amelia H. Drumm, Alexander R. Garcia, Wyatt H. Buchalter, Trevor J. McBride, Marco-Christopher Rupp, Matthew T. ProvencherBackground:Glenoid and humeral head bone defects are common in chronic shoulder instability. The talus, and more specifically, the subtalar joint, has been proposed as a unique allograft from which bipolar bone loss can be addressed. However, there are few biomechanical data or joint reconstruction analyses of the glenoid using the posterior facet of a subtalar joint allograft (STA).Purpose:To compare
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Establishing Benchmarks for Case Minimum Requirements During Accreditation Council for Graduate Medical Education–Accredited Orthopaedic Sports Medicine Fellowship Training Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-11
Jason Silvestre, Harris S. Slone, John D. KellyBackground:Accrediting bodies and professional societies for surgical education are increasingly recognizing the need for case minimum requirements to enhance standardized training.Purpose:To determine case volume benchmarks for operative training during Accreditation Council for Graduate Medical Education (ACGME)–accredited orthopaedic sports medicine fellowships in the United States.Study Design:Cross-sectional
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Dry Needling in Sports and Sport Recovery: A Systematic Review with an Evidence Gap Map Sports Med. (IF 9.3) Pub Date : 2025-02-10
Adrian Kużdżał, Robert Trybulski, Jarosław Muracki, Sebastian Klich, Filipe Manuel Clemente, Adam KawczyńskiBackground Dry needling is an increasingly popular technique used in sports and regenerative medicine contexts. However, there is no comprehensive overview of investigations of dry needling in sports and sport recovery. Objectives The objectives were to perform a systematic review of dry needling in sports athletes with an evidence gap map, to identify current gaps in the literature, and to provide
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Outcomes of Open Arthrotomy and Arthroscopic Surgery for Primary Synovial Chondromatosis of the Hip: A Comparative Study With Propensity Score Matching Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-10
Han Soul Kim, Cha Hyeong Ok, Jae Suk Chang, Ji Wan Kim, Chul-Ho KimBackground:Despite the widespread use of arthroscopic surgery for hip synovial chondromatosis, its postoperative outcomes remain uncertain. A head-to-head comparison between open arthrotomy and arthroscopic surgery is lacking.Purpose:To compare the treatment outcomes of open arthrotomy, particularly with surgical dislocation, and arthroscopic surgery for hip synovial chondromatosis.Study Design:Cohort
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Chronic Structural Adaptations of the Shoulder and Elbow Are Correlated in Professional Baseball Pitchers Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-10
Ryan W. Paul, Alim Osman, Levon N. Nazarian, Michael G. Ciccotti, Steven B. Cohen, Brandon J. Erickson, Paul Buchheit, Joseph Rauch, Daryl C. Osbahr, Stephen J. ThomasBackground:Pitchers with deficits in total shoulder rotation range of motion (ROM) are 2.6 times more likely to experience an elbow injury. Despite the effects of shoulder ROM on elbow injury, it is currently unclear whether specific tissue adaptations of the shoulder relate to the tissue adaptations of the elbow in baseball pitchers.Purpose/Hypothesis:The purpose was to evaluate the relationship between
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The Effect of Concavity Restoration on Glenohumeral Stability in a Glenoid Bone Loss Model: Comparing Distal Tibial Allograft Reconstruction to Classic Latarjet Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-08
Matthew S. Fury, Carl M. Cirino, Amirhossein Jahandar, Ryan C. Rauck, Lawrence V. Gulotta, David M. Dines, Joshua S. Dines, Theodore A. Blaine, Michael C. Fu, Russell F. Warren, Andreas Kontaxis, Samuel A. TaylorBackground:Distal tibial allograft (DTA) reconstruction for glenoid bone loss (GBL) has gained popularity. While recent studies have demonstrated that glenoid concavity is an important factor in native glenohumeral stability, there remains a paucity of data regarding concavity restoration during reconstructive procedures for GBL and its biomechanical effect.Purpose:To compare the restoration of anterior
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Revision Anterior Cruciate Ligament Reconstruction: Surgeon-Reported Causes of Failure From the Norwegian Knee Ligament Register Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-08
Søren Vindfeld, Andreas Persson, Line Lindanger, Anne Marie Fenstad, Håvard Visnes, Eivind InderhaugBackground:Failed anterior cruciate ligament reconstruction (ACLR) leads to reduced quality of life and sometimes the need for repeat surgery. The reason for failure can be multifactorial and difficult to determine. Reports on failure leading to revision are few with limited generalizability. Also, no studies have investigated the reasons for early (<2 years) versus late (≥2 years) revision.Purpose:To
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Response to Comment on "Does Swimming Exercise Impair Bone Health? A Systematic Review and Meta-Analysis Comparing the Evidence in Humans and Rodent Models". Sports Med. (IF 9.3) Pub Date : 2025-02-07
Hélder Fonseca,Laura Freitas,Giorjines Boppre -
Primary Anterior Cruciate Ligament Reconstruction in Level 1 Athletes: Factors Associated With Return to Play, Reinjury, and Knee Function at 5 Years of Follow-up Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-07
Timothy McAleese, Neil Welch, Enda King, Davood Roshan, Niamh Keane, Kieran A. Moran, Mark Jackson, Daniel Withers, Ray Moran, Brian M. DevittBackground:Favorable outcomes after anterior cruciate ligament (ACL) reconstruction (ACLR) are often gauged by successful return to play (RTP), a low incidence of subsequent ACL injury, and positive patient-reported outcomes. Level 1 sports place the highest demands on the knee by requiring frequent pivoting, changes in direction, and jumping.Purpose:To analyze the outcomes of primary ACLR in level
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A Cadaveric Study of the Sagittal Patellar Insertion of the Medial Patellofemoral Ligament in Children: Implications for Reconstruction Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-06
Amin Alayleh, Ian Hollyer, Thomas Johnstone, Bryan Khoo, Chiamaka Obilo, Kelly McFarlane, Wills Baird, Calvin Chan, Marc Tompkins, Henry Ellis, Matthew Schmitz, Yi-Meng Yen, Theodore Ganley, Seth L. Sherman, Kevin G. SheaBackground:Patellofemoral instability is a common problem, and medial patellofemoral ligament (MPFL) reconstruction is a standard treatment approach for recurrent instability. The accurate restoration of anatomy in MPFL reconstruction is essential. While coronal-plane anatomy of the MPFL patellar insertion has been previously reported, sagittal-plane anatomy has not been widely studied.Purpose:To evaluate
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Thin Flap Trochleoplasty With Medial Patellofemoral Ligament Reconstruction for Recurrent Patellofemoral Instability With High-Grade Trochlear Dysplasia: A Series of 63 Consecutive Cases Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-06
Laurie A. Hiemstra, Alexis Rousseau-Saine, Mark R. Lafave, Sarah KerslakeBackground:Trochlear dysplasia is present in 68% to 85% of patients with recurrent lateral patellofemoral instability (LPI) compared with 3% to 6% of healthy controls. Trochlear dysplasia has been associated with medial patellofemoral ligament (MPFL) graft failure and lower quality-of-life (QOL) outcome scores. The correction of trochlear dysplasia with trochleoplasty is indicated in patients with
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Combined Correction of Coronal and Rotational Deformities of the Femur With Distal Femoral Osteotomy Using Patient-Specific Instrumentation Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-06
Georgios Neopoulos, Lukas Jud, Lazaros Vlachopoulos, Sandro F. FucenteseBackground:Distal femoral osteotomy (DFO) can be used to simultaneously correct coronal and rotational deformities. Patient-specific instruments (PSIs) are known to be helpful in such complex osteotomies, but data on surgical accuracy for the combined correction of coronal and rotational deformities of the femur are missing.Purpose:To investigate the radiological results of DFO for simultaneous correction
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Clinical Outcomes of Fully Arthroscopic Versus Arthroscopically Assisted Latissimus Dorsi Transfer for Irreparable Subscapularis Tear Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-05
Bo Taek Kim, Luis Alfredo Miranda, Chang Hee Baek, Jung Gon Kim, Luis Leoncio Temoche Diaz, Gyu Rim Baek, Jean KanyBackground:Untreated chronic subscapularis (SSC) tears pose a challenging problem to treat owing to the resultant tendon retraction, atrophy, fatty infiltration, and changes in humeral head position, which complicate surgical options. Anterior latissimus dorsi (LD) transfer has shown effective results in treating these tears without glenohumeral arthritis.Purpose/Hypothesis:This study introduces and
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fMRI Activation in Sensorimotor Regions at 6 Weeks After Anterior Cruciate Ligament Reconstruction Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-05
Adam M. Culiver, Dustin R. Grooms, Jaclyn B. Caccese, Scott M. Hayes, Laura C. Schmitt, James A. OñateBackground:Brain activity during knee movements is altered throughout the sensorimotor network after anterior cruciate ligament reconstruction (ACLR). Patients at 2 to 5 years after surgery appear to require greater neural activity to perform basic knee movement patterns, but it is unclear if brain activity differences within sensorimotor regions are present early after surgery. It is also unknown
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Superset Versus Traditional Resistance Training Prescriptions: A Systematic Review and Meta-analysis Exploring Acute and Chronic Effects on Mechanical, Metabolic, and Perceptual Variables Sports Med. (IF 9.3) Pub Date : 2025-02-04
Xing Zhang, Jonathon Weakley, Hansen Li, Zhaoqian Li, Amador García-RamosBackground Supersets are a time-efficient resistance training (RT) method that involve the sequencing of two exercises with little or no rest between them. However, despite their common implementation during RT, a comprehensive and quantitative review is still lacking. Objectives The primary aim of this systematic review and meta-analysis was to compare the acute and chronic effects of superset and
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Indications for Lateral Extra-articular Tenodesis in Anterior Cruciate Ligament Reconstruction: A Systematic Review Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-04
Jan Zabrzyński, Adam Kwapisz, Jakub Erdmann, Maria Zabrzyńska, Michał Błachowski, Jakub Ohla, Michalina Adamczyk, Maciej Sokołowski, Bartosz Majchrzak, Gazi HuriBackground:The anterior cruciate ligament (ACL) is a major sagittal plane stabilizer of the knee joint. Even if anterior laxity can be brought under control by utilizing modern surgical techniques, internal rotational instability may not always be controlled adequately. Various surgical techniques are used to prevent this coronal or rotational instability, such as lateral extra-articular tenodesis
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Knee Stability in Remnant-Preserving ACL Reconstruction: Response Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-04
Melissa L. Carpenter, Jorge Chahla -
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Knee Stability in Remnant-Preserving ACL Reconstruction: Letter to the Editor Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-04
Ruijia Wang, Lingxiao Chen -
A Prospective, Randomized Trial of the Modified Jobe Versus Docking Techniques With Gracilis Autograft for Ulnar Collateral Ligament Reconstruction in the Elbow Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-04
Michael C. Ciccotti, Austin M. Looney, Emma E. Johnson, Christopher J. Hadley, Adam Zoga, Levon Nazarian, Michael G. CiccottiBackground:Ulnar collateral ligament (UCL)reconstruction (UCLR) has transformed UCL injury from career-ending to career-interruptive. The most common surgical techniques are the modified Jobe and docking techniques.Purpose/Hypothesis:The purpose of this study was to perform a prospective, randomized comparison of the modified Jobe versus docking techniques in overhead athletes with respect to patient-reported
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Development and Validation of the Well-Being in Sport Questionnaire and Sport Well-Being Enhancement Profile: Two Instruments to Measure and Promote Sport-Specific Well-Being. J. Sport Exerc. Psychol. (IF 2.0) Pub Date : 2025-02-04
Seth Rose,Damon Burton,Julie Stafford-Son,Emma Grindley,Clarissa Richardson,Jon Hammermeister,Michael PickeringAthletes' overall well-being (WB) often intertwines with their sport WB and vice versa. While holistic WB measures have been explored in nonsport contexts, researchers aim to understand competitive athletes' WB using psychometrically rigorous assessments. Consequently, two interrelated studies were conducted to develop and validate companion instruments: (a) the Well-Being in Sport Questionnaire to
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Using Free-Living Heart Rate Data as an Objective Method to Assess Physical Activity: A Scoping Review and Recommendations by the INTERLIVE-Network Targeting Consumer Wearables Sports Med. (IF 9.3) Pub Date : 2025-02-02
Moritz Schumann, Joshua F. Feuerbacher, Lars Heinrich, Marcos Olvera-Rojas, Alessandro Sclafani, Jan Christian Brønd, Anders Grøntved, Brian Caulfield, Ulf Ekelund, Wilhelm Bloch, Sulin Cheng, Luis B. Sardinha, Francisco B. OrtegaWearable technologies open up new avenues for the assessment of individual physical activity behaviour. Particularly, free-living heart rate (HR) data assessed by optical sensors are becoming widely available. However, while an abundancy of scientific information and guidance exists for the processing of raw acceleration data, no universal recommendations for the utilization of continuous HR recordings
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Clinical Outcomes of Ulnar Collateral Ligament Repair With Internal Brace Versus Ulnar Collateral Ligament Reconstruction in Competitive Athletes Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-01
Jeffrey R. Dugas, Ryan J. Froom, Eric A. Mussell, Sydney M. Carlson, Anna E. Crawford, Graham E. Tulowitzky, Travis Dias, Kevin E. Wilk, Arsh N. Patel, Ariel L. Kidwell-Chandler, Michael K. Ryan, Andrew W. Atkinson, Andrew H. Manush, Marcus A. Rothermich, Matthew P. Ithurburn, Benton A. Emblom, E. Lyle CainBackground:The increasing prevalence of ulnar collateral ligament (UCL) injuries, particularly in young athletes, necessitates optimization of treatment options. The introduction of UCL repair with internal bracing offers an exciting alternative to traditional UCL reconstruction.Purpose:To compare midterm outcomes between UCL repair with internal bracing and UCL reconstruction in competitive athletes
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A Quantitative Fatty Infiltration Evaluation of the Supraspinatus Muscle: Enhanced Clinical Relevance and Improved Diagnostic Value on Predicting Retear Compared With the Goutallier Classification Am. J. Sports Med. (IF 4.2) Pub Date : 2025-02-01
Jianhao Xie, Meng Zhou, Zhe Guo, Yiming Zhu, Chunyan JiangBackground:Preoperative assessment of fatty degeneration is important for managing rotator cuff tears. The Goutallier classification is semiquantitative and observer dependent. Discrepancies among surgeons can be prominent. A quantitative method may improve accuracy and reliability in evaluating the exact percentage of fatty infiltration (Fat%).Hypothesis/Purpose:This study aimed to investigate the
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Which Training Intensity Distribution Intervention will Produce the Greatest Improvements in Maximal Oxygen Uptake and Time-Trial Performance in Endurance Athletes? A Systematic Review and Network Meta-analysis of Individual Participant Data Sports Med. (IF 9.3) Pub Date : 2025-01-31
Michael A. Rosenblat, Jennifer A. Watt, Jem I. Arnold, Gunnar Treff, Øyvind B. Sandbakk, Jonathan Esteve-Lanao, Luca Festa, Luca Filipas, Stuart D. Galloway, Iker Muñoz, Domingo J. Ramos-Campo, Patrick Schneeweiss, Sergio Sellés-Pérez, Thomas Stöggl, Rune K. Talsnes, Christoph Zinner, Stephen SeilerBackground Endurance athletes tend to accumulate large training volumes, the majority of which are performed at a low intensity and a smaller portion at moderate and high intensity. However, different training intensity distributions (TID) are employed to maximize physiological and performance adaptations. Objective The objective of this study was to conduct a systematic review and network meta-analysis
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The Effect of Sex Hormones on Joint Ligament Properties: A Systematic Review and Meta-analysis Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-31
Gabrielle Gilmer, Nikitha Crasta, Miho J. TanakaBackground:Sex differences exist in injury rates, and one contributing factor may be sex hormone effects on the musculoskeletal system.Purpose/Hypothesis:The goal of this systematic review and meta-analysis was to understand the effects of sex hormones on ligaments in females as determined by preclinical and clinical studies. The hypothesis was that sex hormones would affect ligament mechanical properties
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Midterm to Long-term Follow-up After Limited Saucerization of a Discoid Lateral Meniscus: Radiological and Functional Outcomes With Age-Dependent Variations Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-30
Taha Aksoy, Ibrahim Mehmet Goymen, Gazi Huri, Egemen Turhan, Mininder S. Kocher, Ozgur Ahmet AtayBackground:A discoid lateral meniscus (DLM) is the most common meniscus variant and is commonly treated with arthroscopic saucerization. There are mixed data regarding long-term results after surgery, especially in terms of radiological parameters.Purpose/Hypothesis:The aim was to evaluate the functional and radiological results of patients who underwent arthroscopic saucerization for a symptomatic
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Examining the relationships among preservice physical education teachers’ beliefs, emotions, and professional identity Eur. Phys. Educ. Rev. (IF 2.6) Pub Date : 2025-01-30
Youngjoon Kim, Kelly L. Simonton, Kevin Mercier, Karen Lux Gaudreault, Kevin Andrew RichardsTeacher identities, shaped within teacher education programs, are linked to professional commitment, career longevity, teaching effectiveness, and student learning. The purpose of this study was to examine the relationships among teacher beliefs, emotions during student teaching, and professional identity in physical education (PE) preservice teachers (PSTs). The PE PSTs ( N = 268), who were in the
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Comparative Efficacy and Acceptability of Non-surgical Treatments with or without Exercise for Diastasis Recti Abdominis in Postpartum Women: A Network Meta-Analysis of Randomized Controlled Trials Sports Med. (IF 9.3) Pub Date : 2025-01-29
Wen-Chieh Wu, Wen-Hong Wu, Ming-Fen Lee, Pei-Yu Wu, Yu-Kang Tu, Hsuan Lin, Chien-Yi Chan, Chun-Yin HuangBackground Diastasis recti abdominis (DRA), commonly occurring in postpartum women, is not only an aesthetic issue but is also highly associated with functional impairments. Various conservative treatment modalities have been employed in clinical practice to alleviate DRA. However, the comparative efficacy of these non-surgical treatments for improving the inter-recti distance (IRD) remains to be determined
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Descriptive Epidemiology of Complete ACL Tears in the Skeletally Immature Population: A Prospective Multicenter PLUTO Study Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Melissa A. Christino, Lauren E. Hutchinson, Andrew T. Pennock, Danielle L. Cook, Christian N. Anderson, Michael T. Busch, Henry G. Chambers, Frank A. Cordasco, Eric W. Edmonds, Peter D. Fabricant, Theodore J. Ganley, Daniel W. Green, Benton E. Heyworth, John Todd R. Lawrence, Matthew J. Matava, Lyle J. Micheli, Matthew D. Milewski, Jeffrey Nepple, Shital N. Parikh, Crystal A. Perkins, Paul M. SaluanBackground:Anterior cruciate ligament (ACL) injuries are common in pediatric and adolescent patients. Understanding this population's injury characteristics and treatment strategies is vital for managing this high-risk group.Purpose:To report the descriptive epidemiology and treatment strategies of a large cohort of skeletally immature patients with complete ACL tears.Study Design:Cross-sectional study;
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Midterm Survivorship and Clinical Outcomes in Fresh Osteochondral Allograft Transplantation for the Treatment of Large Bipolar Lesions of the Knee Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Tony S. Bouz, Tim Wang, Jordan K. Penn, Julie C. McCauley, William D. BugbeeBackground:Fresh osteochondral allograft (OCA) transplantation is an established treatment option for patients with chondral or osteochondral lesions of the knee. Predictably positive outcomes are seen in situations of focal or isolated cartilage defects. However, OCA transplantation may also be performed in more complex joint salvage situations in young patients.Purpose:To evaluate survivorship and
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Osteochondral Fractures in Adolescents With First-time Patellar Dislocation: Three-dimensional Characterization and Association With Radiographic Features Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Annmarie Wang, Beltran Torres-Izquierdo, Jeffrey J. NeppleBackground:Consequences of osteochondral fractures associated with patellar dislocation can be severe for younger patients. Precise 3-dimensional characterization of fracture location, size, frequency, and radiographic associations remain undefined in this population.Purpose:(1) To define the topographic characteristics of osteochondral fractures in pediatric and adolescent patients with first-time
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Association Between Joint Line Convergence Angle and Patient-Reported Outcomes of Opening-Wedge High Tibial Osteotomy Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Takahiro Tsushima, Eiji Sasaki, Yukiko Sakamoto, Yuka Kimura, Eiichi Tsuda, Yasuyuki IshibashiBackground:A larger joint line convergence angle (JLCA) increases the stress load on the medial compartment. Few reports, however, have discussed the effect of the JLCA on the cartilage status and clinical outcomes after opening-wedge high tibial osteotomy (OWHTO).Purpose/Hypothesis:To reveal the effect of the JLCA on clinical results after OWHTO. We hypothesized that a smaller JLCA improves cartilage
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An Aligned-to-Random PLGA/Col1-PLGA/nHA Bilayer Electrospun Nanofiber Membrane Enhances Tendon-to-Bone Healing in a Murine Model Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Baoyun Xu, Yunjiao Wang, Gang He, Xu Tao, Shang Gao, Mei Zhou, Yuzhen Tang, Kang-lai Tang, Lin Guo, Wan ChenBackground:The challenge of achieving effective tendon-to-bone healing remains a significant concern in sports medicine, necessitating further exploration. Biomimetic electrospun nanomaterials present promising avenues for improving this critical healing process.Purpose:To investigate the biological efficacy of a novel aligned-to-random PLGA/Col1-PLGA/nHA bilayer electrospun nanofiber membrane in facilitating
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Efficacy of an Autologous Dermal Fibroblast Injection in Reducing the Retear Rate After Arthroscopic Rotator Cuff Repair: A Prospective Randomized Controlled Trial Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Young Kyu Kim, Yong Tae Kim, Yoo-Sun Won, Young Hoon Jang, Sun Tae Hwang, Jikhyon Han, Saewha Jeon, Sae Hoon Kim, Joo Han OhBackground:Interest in biological augmentation for improving bone-tendon interface (BTI) healing after arthroscopic rotator cuff repair (ARCR) is growing. Dermal fibroblasts, known for collagen synthesis similar to tenocytes, have shown effectiveness in BTI healing in chronic rotator cuff tear (RCT) models in rabbits. However, no human clinical trials have been conducted.Purpose:To evaluate the clinical
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Bone Marrow Aspirate Concentrate Combined With an Appropriate Carrier Effectively Promotes Bone-Tendon Interface Healing in a Rabbit Model of Chronic Rotator Cuff Tear Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Sheng Chen Han, Jian Han, Young Kyu Kim, Myung Jae Hyun, Hyeon Jang Jeong, Joo Han OhBackground:The efficacy of bone marrow aspirate concentrate (BMAC) in promoting bone-tendon interface (BTI) healing without any carriers remains a subject of debate.Purpose:To evaluate BMAC effects with different carriers on tendon regeneration in a rabbit model of chronic rotator cuff tear.Study Design:Controlled laboratory study.Methods:In vitro, the amount of growth factor and the differentiation
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Association Between Patient Characteristics and the Depth of Microvascular Penetration Into the Adult Human Meniscus Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Thies J.N. van der Lelij, Peter van Schie, Amber Weekhout, Marta Fiocco, Roelina Munnik-Hagewoud, Stijn Keereweer, Hans Marten Hazelbag, Ewoud R.A. van Arkel, Pieter B.A.A. van DrielBackground:Current knowledge on the microvascular anatomy of adult human menisci is based on cadaveric studies. However, considerable interindividual variation in meniscal microvascularization has been reported in recent studies with small sample sizes.Purpose:To assess the association between patient characteristics and the depth of microvascularization of the meniscus.Study Design:Descriptive laboratory
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Platelet Concentration Explains Variability in Outcomes of Platelet-Rich Plasma for Lateral Epicondylitis: A High Dose Is Critical for a Positive Response: A Systematic Review and Meta-analysis With Meta-regression Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Jacob F. Oeding, Nathan H. Varady, Caden J. Messer, Joshua S. Dines, Riley J. Williams, Scott A. RodeoBackground:Randomized controlled trials (RCTs) evaluating the efficacy of platelet-rich plasma (PRP) for the management of lateral epicondylitis (LE) have been characterized by substantial variability in reported outcomes. The source of this heterogeneity is uncertain.Purpose:To determine the effect of estimated platelet concentration on the efficacy of PRP for the management of LE.Study Design:Systematic
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Does the Addition of a Lateral Extra-articular Procedure to a Primary Anterior Cruciate Ligament Reconstruction Result in Superior Functional and Clinical Outcomes? A Systematic Review and Meta-analysis of Randomized Controlled Trials Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Adrian Kan, Tayla English, Allanah Penny, Jordan Franc-Smith, Francois Tudor, Larissa SattlerBackground:Current research focused on clinical outcomes suggests that lateral extra-articular procedures (LEAPs) can reduce rotational instability and graft failure rates in primary anterior cruciate ligament reconstructions (ACLRs). Limited studies have investigated the functional outcomes after LEAPs, including patient-reported outcome measures, sports participation, and physical performance.Purpose:To
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Concomitant Cartilage Procedures With Meniscal Allograft Transplantation Do Not Substantially Alter Failure or Survival Rates Relative to Meniscal Allograft Transplantation Without Cartilage Procedures: A Systematic Review Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Lika Dzidzishvili, Sachin Allahabadi, Garrett R. Jackson, Salvador Gonzalez Ayala, Divesh Sachdev, Julie Mekhail, Brian J. Cole, Jorge ChahlaBackground:Timely recognition and addressing of concomitant cartilage damage at the time of meniscal allograft transplantation (MAT) is critical to warrant future success. However, there remains a scarcity of data comparing outcomes between MAT with and without cartilage procedures.Purpose:To compare patient-reported outcomes and rates of complications, failures, reoperations, and graft survivorship
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Comparison of Interportal and Periportal Capsulotomies and Axial Distraction Resistance During Hip Arthroscopy: An In Vivo Propensity-Matched Cohort Study Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-29
Joseph Featherall, Allan K. Metz, Reece M. Rosenthal, Ameen Z. Khalil, Benjamin T. Johnson, Devin L. Froerer, Alexander J. Mortensen, Stephen K. AokiBackground:Intraoperative hip capsule management is increasingly recognized as an important component of hip arthroscopy for the prevention of capsular-related instability. The periportal capsulotomy, relative to the interportal capsulotomy, has been proposed as a minimally invasive technique for decreasing postarthroscopy hip instability; however, the biomechanical effects of this technique are not
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Quantifying Muscle Volume Deficits Among 38 Lower Extremity Muscles in Collegiate Football Athletes After Anterior Cruciate Ligament Reconstruction. Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-28
Naoaki Ito,Jack A Martin,Mikel R Joachim,Silvia S Blemker,David A Opar,Stephanie A Kliethermes,Bryan C Heiderscheit,,Geoffrey Baer,Kurrel Fabian,Erin Hammer,Danielle Heidt,Matthew Kuehl,Kenneth Lee,Michael Moll,Ryan Peot,Jennifer Sanfilippo,Claire Tanaka,Sarah Sund,Yi-Chung Lin,Jack Hickey,Ashleigh Homer,Nirav Maniar,Ryan Timmins,Matthew Cousins,Olivia DuCharme,Xue Feng,Anthony Nguyen,Lara Riem,JosephBACKGROUND Quadriceps dysfunction is ubiquitous after anterior cruciate ligament (ACL) reconstruction (ACLR). Addressing quadriceps dysfunction is crucial to improve function, reduce the reinjury risk, and maintain long-term knee health. While deficits specific to the quadriceps are well documented, less is known about the effect of an ACL injury on other lower extremity muscle groups. PURPOSE/HYPOTHESIS
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"It's Allowing Space for Vulnerability": Exploring Athletes' Experiences With Trust in Interdependent Sport. J. Sport Exerc. Psychol. (IF 2.0) Pub Date : 2025-01-28
Cailie S McGuire,Mark A Eys,Lori Dithurbide,Luc J MartinDespite trust being associated with a range of favorable outcomes across high-performing team contexts (e.g., enhanced satisfaction, performance), efforts to investigate the meaning of trust in sport remain limited. The purpose of this study was to explore (a) how athletes experience trust, (b) why it is needed within sport teams (e.g., beneficial outcomes), and (c) the mechanisms of trust development
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Optimizing Post-activation Performance Enhancement in Athletic Tasks: A Systematic Review with Meta-analysis for Prescription Variables and Research Methods Sports Med. (IF 9.3) Pub Date : 2025-01-24
Kai Xu, Anthony J. Blazevich, Daniel Boullosa, Rodrigo Ramirez-Campillo, MingYue Yin, YuMing Zhong, YuHang Tian, Mitchell Finlay, Paul J. Byrne, Francisco Cuenca-Fernández, Ran WangBackground Post-activation performance enhancement (PAPE) has demonstrated efficacy in acutely improving athletic performance. However, its distinction from general warm-up (GW) effects remains ambiguous, and experimental designs adopted in most PAPE studies exhibit important limitations. Objectives The aims of this work are to (i) examine the effects of research methodology on PAPE outcomes, (ii)
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Nutritional Interventions to Attenuate Quadriceps Muscle Deficits following Anterior Cruciate Ligament Injury and Reconstruction Sports Med. (IF 9.3) Pub Date : 2025-01-24
Miriam J. Smith, Nolan J. Hoffman, Argell J. San Jose, Louise M. Burke, David A. OparFollowing anterior cruciate ligament (ACL) injury, quadriceps muscle atrophy persists despite rehabilitation, leading to loss of lower limb strength, osteoarthritis, poor knee joint health and reduced quality of life. However, the molecular mechanisms responsible for these deficits in hypertrophic adaptations within the quadriceps muscle following ACL injury and reconstruction are poorly understood
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Rate and Timing of Progression to Total Knee Arthroplasty After Anterior Cruciate Ligament Reconstruction in Patients With Systemic Inflammatory Disease: A Long-term Propensity-Matched Cohort Study Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-24
Xuankang Pan, Allen S. Wang, Quinn J. Johnson, Sean C. Clark, Christopher L. Camp, Kelechi R. Okoroha, Daniël B. F. Saris, Adam J. Tagliero, Mario Hevesi, Aaron J. KrychBackground:Anterior cruciate ligament reconstruction (ACLR) is one of the most common orthopaedic procedures and one of the most well studied. Despite extensive research dedicated to ACLR, there is limited understanding of how chronic inflammatory systemic diseases (CIDs) such as rheumatoid arthritis and systemic lupus erythematosus affect outcomes.Purpose:To compare the outcomes of ACLR in cohorts
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Trochlear Morphological Changes in Skeletally Immature Patients Across Consecutive MRI Studies Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-24
Kevin J. Orellana, Julianna Lee, Daniel Yang, David Kell, Jie Nguyen, J. Todd Lawrence, Brendan A. WilliamsBackground:Trochlear dysplasia is a consistent risk factor for recurrent patellofemoral instability (PFI), but there is limited understanding of how the trochlea develops during growth. The aim of this study was to evaluate serial magnetic resonance imaging (MRI) studies performed in skeletally immature patients with and without PFI to characterize changes in trochlear anatomy over time.Hypothesis:PFI
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The Prevalence of Tear Patterns and Their Effects on Tendon Healing After Arthroscopic Surgery in Patients With Full-Thickness Rotator Cuff Tears Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-24
Sang-Jin Shin, Sanghyeon LeeBackground:To achieve successful anatomic rotator cuff repair with minimal tension, both the tear pattern and tear size should be considered. However, little information is available concerning the frequency of tear patterns and their effects on tendon healing.Purpose:To evaluate the distribution of tear patterns in full-thickness rotator cuff tears and whether these patterns affect tendon healing
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Early Meniscal Repair Leads to Higher Success Rates Than Delayed Meniscal Repair: A Systematic Review and Meta-analysis Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-23
Jelle P. van der List, Stef Daniel, Ingmar Blom, Joyce L. BennerBackground:There has been an increased interest in meniscus preservation over the last decade. Several risk factors for the failure of meniscal repair have been identified. However, the timing of meniscal repair has not been extensively assessed in the literature, and there is currently no high-quality evidence on the optimal timing of performing meniscal repair after an injury with regard to outcomes
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Partial Avulsion Patterns in the Pediatric Humeral Medial Epicondyle Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-23
Richard C. Lee, Akbar N. Syed, Margaret A. Bowen, J. Todd R. LawrenceBackground:The anterior oblique bundle of the medial ulnar collateral ligament (UCL) inserts on the anteroinferior aspect of the humeral medial epicondyle, while the flexor pronator mass (FPM) originates superficial and proximal to the UCL. With valgus stress, these distinct footprints may produce injury patterns that affect only focal areas of the medial epicondyle.Hypothesis:The proximal UCL can
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Low-Cost Lower Extremity Screening to Predict Shoulder Distraction Force in College Softball Pitchers Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-23
Sophia M. Ulman, Adam R. Nebel, Nicole M. Bordelon, Gretchen D. OliverBackground:During a windmill softball pitch, the throwing shoulder experiences forces greater than the pitcher’s body weight. Various kinematic, kinetic, and performance factors have been related to shoulder forces and torques in softball pitchers, and softball research has examined clinical screening measures such as range of motion, muscular strength, and/or neuromuscular control. However, no studies
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Patients With a Quadriceps Tendon Autograft Demonstrate Greater Asymmetry in Landing Kinetics Than Patients With a Bone–Patellar Tendon–Bone Autograft 6 Months After Anterior Cruciate Ligament Reconstruction Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-23
Rachel E. Cherelstein, Christopher M. Kuenze, Michelle C. Walaszek, Emily R. Brumfield, Jennifer N. Lewis, Garrison A. Hughes, Edward S. ChangBackground:Asymmetric landing kinetics 6 months after anterior cruciate ligament reconstruction (ACLR) are associated with higher risk of second anterior cruciate ligament injury. Little is known about landing kinetics after ACLR with an all–soft tissue quadriceps tendon (QT) autograft despite its increasingly common use in young, active patients.Purpose/Hypothesis:The purpose of this study was to
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Factors Relating to Sprint Swimming Performance: A Systematic Review Sports Med. (IF 9.3) Pub Date : 2025-01-22
Jesús J. Ruiz-Navarro, Catarina C. Santos, Dennis-Peter Born, Óscar López-Belmonte, Francisco Cuenca-Fernández, Ross H Sanders, Raúl ArellanoBackground Swimming performance depends on a wide variety of factors; however, the interaction between these factors and their importance varies between events. In sprint events, the characterized pacing underlines its specific development, as swimmers must achieve the highest possible speed while sustaining it to the greatest extent possible. Objectives The aim of this review was to identify the key
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Long-term Recurrence Rates After Isolated Arthroscopic Bankart Repair in Selected Patients Without Preoperative Bone Loss Versus Open Latarjet Procedure: A Matched-Pair Analysis Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-22
Clémentine Rieussec, Juan Enrique Cassinelli, Matias Hoffman, Clément Horteur, Johannes BarthBackground:Clinical studies have shown that the open Latarjet procedure (OLP) has lower recurrence rates than the isolated arthroscopic Bankart (IAB) procedure for recurrent anterior shoulder instability, but no long-term comparative studies exist for IAB in patients without bone loss.Purpose/Hypothesis:This study aimed to compare the outcomes of IAB in selected patients without bone loss versus OLP
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A Lack of Joint Line Tenderness Is Consistent With a Healed Meniscus, But Positive Clinical Examination Findings and MRI Scans Are Inconsistent in Identifying Failure After Meniscal Repair: A Systematic Review and Subgroup Meta-analysis Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-22
Jon H. Schoenecker, Luke V. Tollefson, Rafat H. Solaiman, Jill K. Monson, Morgan D. Homan, Grant J. Dornan, Nicholas I. Kennedy, Erik Ronnblad, Robert F. LaPradeBackground:The number of meniscal repairs being completed each year is increasing; however, the optimal, cost-effective postoperative assessment to determine the success or failure of a meniscal repair is not well known.Purpose/Hypothesis:The purpose of this systematic review was to identify the clinical examination testing that correlates with objective magnetic resonance imaging (MRI) or second-look
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Regional Patellar Tendon Strain in the Short- and Long-term After ACL Reconstruction Using Bone–Patellar Tendon–Bone Autograft Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-22
João Luiz Quaglioti Durigan, Naoaki Ito, Rodrigo Scattone Silva, Karin Grävare SilbernagelBackground:Anterior cruciate ligament reconstruction (ACLR) often involves harvesting a bone–patellar tendon–bone (BPTB) autograft. How graft harvest affects tendon strain across the 3 distinct regions (medial, lateral, and central) is not known.Purpose:To (1) quantify strain in the 3 regions of the patellar tendon during 60% of maximum voluntary isometric contraction (MVIC) in 90° of knee flexion
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Medial Meniscotibial Ligament Deficiency Increases Medial Meniscus Extrusion and Posterior Root Forces Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-22
Matthew J.J. Anderson, Justin F.M. Hollenbeck, Amelia H. Drumm, Emily A. Whicker, Justin R. Brown, Alexander R. Garcia, John M. Apostolakos, Wyatt H. Buchalter, Natalie Cortes, Ryan J. Whalen, Armando F. Vidal, Matthew T. ProvencherBackground:There is growing evidence that medial meniscotibial ligament (MTL) deficiency and medial meniscus extrusion may precede the development of some medial meniscus posterior root (MMPR) tears. However, no study has investigated the biomechanical consequences of MTL deficiency on the MMPR.Hypothesis:(1) MTL deficiency leads to increased medial meniscus extrusion, (2) increased medial meniscus
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Pitch Types and Their Influence on Elbow Varus Torque and Spin Rate in Professional Baseball Pitchers Am. J. Sports Med. (IF 4.2) Pub Date : 2025-01-21
Alexander J. Hodakowski, Brittany Dowling, John T. Streepy, Bjorn Olmanson, Logan Schmitt, Marc J. Richard, Nikhil N. Verma, Grant E. GarriguesBackground:Elbow injuries are prevalent among professional baseball pitchers as nearly 25% undergo ulnar collateral ligament reconstruction. Pitch type, ball velocity, and spin rate have been previously hypothesized to influence elbow varus torque and subsequent risk of injury, but existing research is inconclusive.Purpose:To examine elbow varus torque, cumulative torque, and loading rate within professional