Collections Knee


MH Residency - Knee
Tobias Alt, Tilman Roos, Kevin Nolte, Dominik Modenbach, Axel J Knicker, Thomas Jaitner
BACKGROUND: The Nordic hamstring exercise (NHE) is commonly implemented to selectively improve eccentric knee-flexor strength. However, the standard version of the exercise (leveled shanks, extended hip joint) is too strenuous for most individuals, whose muscle activity rapidly decreases at extended knee angles. Hitherto, a gradual approach to the exercise has been missing. In this exploratory case study, we investigated elite performance to introduce a stepwise progression to the NHE...
April 1, 2023: Journal of Athletic Training
Riccardo D'Ambrosi, Amit Meena, Akshya Raj, Nicola Ursino, Timothy E Hewett
Anterior knee pain (AKP) is one of the most common conditions to bring active young patients to a sports injury clinic. It is a heterogeneous condition related to multiple causative factors. Compared to the general population, there appears to be a higher risk of development of patellofemoral osteoarthritis in patients with AKP. AKP can be detrimental to the patient's quality of life and, in the larger context, significantly burdens the economy with high healthcare costs. This study aims to present a comprehensive evaluation of AKP to improve clinical daily practice...
July 30, 2022: Sports Medicine—Open
Yukiko Matsuzaki, Danielle E Chipman, Sofia Hidalgo Perea, Daniel W Green
UNLABELLED: Anterior cruciate ligament (ACL) injuries and surgical intervention in the pediatric population have increased in the recent years. Although surgical techniques have advanced, evidence-based rehabilitation guidelines that consider all aspects of the youth athlete are currently lacking. The purpose of this commentary is to review the current evidence on unique considerations for the pediatric and adolescent population during rehabilitation and return to sport after ACL reconstruction (ACLR), with a focus on children under 18 years of age...
January 2022: Arthroscopy, sports medicine, and rehabilitation
Christopher Kuenze, Nathaniel Farner, Jordan Lewis, Caroline Lisee, Andrew Schorfhaar, Karl Erickson
CONTEXT: Rehabilitation after anterior cruciate ligament reconstruction (ACLR) is challenging for adolescent patients concurrently experiencing growth and development, changes in attitudes and social interactions, and a gradual shift toward independence. OBJECTIVE: Therefore, the purpose of this study was to examine the perceptions of information sharing and interpersonal communication among adolescent patients going through ACLR, their parents, and physical therapist (PT) treating adolescent patients with ACLR...
February 10, 2022: Journal of Athletic Training
Volker Musahl, Ian D Engler, Ehab M Nazzal, Jonathan F Dalton, Gian Andrea Lucidi, Jonathan D Hughes, Stefano Zaffagnini, Francesco Della Villa, James J Irrgang, Freddie H Fu, Jon Karlsson
Clinical evaluation and management of anterior cruciate ligament (ACL) injury is one of the most widely researched topics in orthopedic sports medicine, giving providers ample data on which to base their practices. The ACL is also the most commonly treated knee ligament. This study reports on current topics and research in clinical management of ACL injury, starting with evaluation, operative versus nonoperative management, and considerations in unique populations. Discussion of graft selection and associated procedures follows...
January 2022: Knee Surgery, Sports Traumatology, Arthroscopy
Cameron Kia, Zachary Cavanaugh, Edward Gillis, Corey Dwyer, Vivek Chadayammuri, Lukas N Muench, Daniel P Berthold, Matthew Murphy, Rafael Pacheco, Robert A Arciero
BACKGROUND: Bone marrow contusions are common after an acute anterior cruciate ligament (ACL) injury. It is unknown whether the severity of this initial bruise can predict the potential of developing chondral changes even after ACL reconstructive surgery (ACLR). PURPOSE: To investigate whether the initial bone bruise area could be predictive of progressive chondral defects. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: A retrospective chart review was performed to capture patients with an acute ACL injury with pre- and post-ACLR magnetic resonance imaging (MRI) between January 2000 and December 2017...
May 2020: Orthopaedic Journal of Sports Medicine
Benjamin B Rothrauff, Jon Karlsson, Volker Musahl, James J Irrgang, Freddie H Fu
No abstract text is available yet for this article.
August 2020: Knee Surgery, Sports Traumatology, Arthroscopy
Juha-Tapio Turpeinen, Tomás T Freitas, Jacobo Ángel Rubio-Arias, Matthew J Jordan, Per Aagaard
STUDY DESIGN: Comprehensive review and meta-analysis. BACKGROUND: The recovery in rapid force production measured as the rate of force development (RFD) is not clear after anterior cruciate ligament reconstruction (ACLR). OBJECTIVES: To evaluate (a) time-course change of between-limb asymmetries in isometric knee extension/flexion RFD in individuals post-ACLR and (b) differences in RFD between individuals post-ACLR and healthy controls. METHODS: A literature search of Web of Science, SPORTDiscus, PubMed-MEDLINE, and ScienceDirect identified 10 eligible studies (n = 246) assessing RFD after ACLR...
September 2020: Scandinavian Journal of Medicine & Science in Sports
Marlon Francys Vidmar, Bruno Manfredini Baroni, Alexandre Fróes Michelin, Márcio Mezzomo, Ricardo Lugokenski, Gilnei Lopes Pimentel, Marcelo Faria Silva
OBJECTIVE: To compare the effects of conventional (constant load) eccentric training and isokinetic eccentric training on quadriceps muscle mass, strength and functional performance in recreational athletes following anterior cruciate ligament (ACL) reconstruction. METHODS: Thirty recreational male athletes (25 years old) undergoing ACL reconstruction received a standard rehabilitation program. Volunteers were randomized to conventional group (CG; n = 15) or isokinetic group (IG; n = 15) to be engaged in a 6-week (2 sessions/week) quadriceps eccentric training program at the extensor chair or at the isokinetic dynamometer, respectively...
2020: Brazilian Journal of Physical Therapy
Kate E Webster, April L McPherson, Timothy E Hewett, Julian A Feller
BACKGROUND: Many studies have investigated factors that predict a return to sport participation after anterior cruciate ligament (ACL) reconstruction, but it is unclear whether the same factors are associated with a return to preinjury level of sport performance. PURPOSE: To identify factors that contribute to an athlete's return to preinjury level of performance after ACL reconstruction. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A cohort of 222 patients (132 male, 90 female) who had ACL reconstruction surgery and completed a 12-month postoperative assessment were followed out to a mean 3 years (range, 2-4 years) to determine whether they had returned to their self-reported preinjury levels of sport performance...
September 2019: American Journal of Sports Medicine
Seong Hwan Kim, Hyun Je Seo, Dong Won Seo, Kang-Il Kim, Sang Hak Lee
BACKGROUND: The incidence of meniscocapsular junction tears of the medial meniscus posterior horn, known as ramp lesions , is reported to be 9.3% to 23.9%. However, these lesions are not consistently diagnosed with routine arthroscopic exploration and magnetic resonance imaging (MRI). PURPOSE: To determine risk factors associated with ramp lesions in anterior cruciate ligament-injured knees. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
June 2020: American Journal of Sports Medicine
Luke Hughes, Stephen David Patterson, Fares Haddad, Benjamin Rosenblatt, Conor Gissane, Daniel McCarthy, Thomas Clarke, Graham Ferris, Joanna Dawes, Bruce Paton
OBJECTIVE: Examine the comfort and pain experienced with blow flow restriction resistance training (BFR-RT) compared to standard care heavy load resistance training (HL-RT) during anterior cruciate ligament reconstruction (ACLR) patient rehabilitation. DESIGN: Randomised controlled trial. SETTING: United Kingdom National Health Service. PARTICIPANTS: Twenty eight patients undergoing unilateral ACLR surgery with hamstring autograft were recruited...
September 2019: Physical Therapy in Sport
Luke Hughes, Benjamin Rosenblatt, Fares Haddad, Conor Gissane, Daniel McCarthy, Thomas Clarke, Graham Ferris, Joanna Dawes, Bruce Paton, Stephen David Patterson
BACKGROUND: We implemented a blood flow restriction resistance training (BFR-RT) intervention during an 8-week rehabilitation programme in anterior cruciate ligament reconstruction (ACLR) patients within a National Health Service setting. OBJECTIVE: To compare the effectiveness of BFR-RT and standard-care traditional heavy-load resistance training (HL-RT) at improving skeletal muscle hypertrophy and strength, physical function, pain and effusion in ACLR patients following surgery...
November 2019: Sports Medicine
Xiong-Gang Yang, Jiang-Tao Feng, Xin He, Feng Wang, Yong-Cheng Hu
BACKGROUND: Knee brace has been commonly used as a device to protect the graft after reconstruction of anterior cruciate ligament (ACL). Studies have focused on the effects of braces after ACL reconstruction, and controversial results were reported. The current meta-analysis was conducted to identify whether knee braces could provide superior clinical outcomes on knee functional scores and stability evaluations. HYPOTHESIS: Knee braces could not provide superior clinical outcomes on knee functional scores and stability evaluations...
October 2019: Orthopaedics & Traumatology, Surgery & Research: OTSR
Jacob J Capin, Mathew Failla, Ryan Zarzycki, Celeste Dix, Jessica L Johnson, Angela H Smith, May Arna Risberg, Laura J Huston, Kurt P Spindler, Lynn Snyder-Mackler
BACKGROUND: Outcomes after anterior cruciate ligament reconstruction (ACLR) are not uniformly good and are worse among young female athletes. Developing better rehabilitation and return-to-sport training programs and evaluating their outcomes are essential. PURPOSE: (1) Test the effect of strength, agility, plyometric, and secondary prevention (SAPP) exercises with and without perturbation training (SAPP + PERT) on strength, hops, function, activity levels, and return-to-sport rates in young female athletes 1 and 2 years after ACLR and (2) compare 2-year functional outcomes and activity levels among young female athletes in the Anterior Cruciate Ligament Specialized Post-Operative Return-to-Sports (ACL-SPORTS) trial to homogeneous cohorts who completed criterion-based postoperative rehabilitation alone (Multicenter Orthopaedic Outcomes Network [MOON]) and in combination with extended preoperative rehabilitation (Delaware-Oslo)...
August 2019: Orthopaedic Journal of Sports Medicine
Benoit Pairot-de-Fontenay, Richard W Willy, Audrey R C Elias, Ryan L Mizner, Marc-Olivier Dubé, Jean-Sébastien Roy
BACKGROUND: A return to running after anterior cruciate ligament reconstruction (ACL-R) is critical to the clinical success of any cutting and pivoting athlete who wishes to return to sport. Knowledge of specific alterations during running after ACL-R is required to optimise rehabilitation for improving outcomes and long-term disability. OBJECTIVE: The objective of this systematic review was to summarise kinematic, kinetic and muscle activation data during running after ACL-R and the intrinsic factors (e...
September 2019: Sports Medicine
Riccardo Cristiani, Christina Mikkelsen, Magnus Forssblad, Björn Engström, Anders Stålman
PURPOSE: To assess the percentage of patients achieving symmetrical knee function 6 months after primary anterior cruciate ligament (ACL) reconstruction (ACLR) and to identify factors affecting its achievement, in a large cohort. METHODS: Data were extracted from our clinic database. Patients who underwent primary ACLR from 2000 to 2015 and were assessed with the isokinetic quadriceps and hamstring muscles strength tests and single-leg-hop test at the 6-month follow-up were included in the study...
November 2019: Knee Surgery, Sports Traumatology, Arthroscopy
Matt Taberner, Tom Allen, Daniel Dylan Cohen
No abstract text is available yet for this article.
September 2019: British Journal of Sports Medicine
Lee Herrington, Hussain Ghulam, Paul Comfort
Herrington, L, Ghulam, H, and Comfort, P. Quadriceps strength and functional performance after anterior cruciate ligament reconstruction in professional soccer players, at time of return to sport. J Strength Cond Res 35(3): 769-775, 2021-Poor quadriceps strength has been associated with poor outcome after anterior cruciate ligament (ACL) reconstruction (ACLR). This study aims to assess quadriceps strength, muscle inhibition, and hop test performance in professional soccer players after ACLR. Fifteen professional soccer players (age 22...
March 1, 2021: Journal of Strength and Conditioning Research
Karin Gravare Silbernagel, Bill T Vicenzino, Michael Skovdal Rathleff, Kristian Thorborg
No abstract text is available yet for this article.
November 2019: British Journal of Sports Medicine
2019-05-26 12:33:20
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