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150 papers 1000+ followers MH Residency - Knee
Timothy E Hewett
Graft failure rates were higher and inferior subjective outcomes were observed after anterior cruciate ligament reconstruction in patients with generalized hypermobility. This is a clear and corroborative finding that is highly consilient with other reports of similar studies from the published literature. However, controversy remains regarding other potentially predictive and confounding variables. For example, age, activity level, sex, and dynamic neuromuscular control were not considered in this interesting, important, and potentially impactful study...
October 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
Eric Hamrin Senorski, Eleonor Svantesson, Susanne Beischer, Christoffer Thomeé, Alberto Grassi, Ferid Krupic, Roland Thomeé, Jón Karlsson, Kristian Samuelsson
PURPOSE: A better understanding of patient characteristics and the way common concomitant injuries affect the recovery of muscle function after surgery should help providers to treat patients with anterior cruciate ligament (ACL) injuries. The aim of this study was to determine whether patient characteristics, concomitant injuries and graft choice at ACL reconstruction were associated with symmetrical knee muscle function at one year. The hypothesis was that the presence of concomitant injuries would negatively influence the opportunity to achieve symmetrical knee function at the one-year follow-up...
February 5, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Clare L Ardern, Guri Ranum Ekås, Hege Grindem, Håvard Moksnes, Allen F Anderson, Franck Chotel, Moises Cohen, Magnus Forssblad, Theodore J Ganley, Julian A Feller, Jón Karlsson, Minider S Kocher, Robert F LaPrade, Michael McNamee, Bert Mandelbaum, Lyle Micheli, Nicholas Mohtadi, Bruce Reider, Justin Roe, Romain Seil, Rainer Siebold, Holly J Silvers-Granelli, Torbjørn Soligard, Erik Witvrouw, Lars Engebretsen
In October 2017, the International Olympic Committee hosted an international expert group of physiotherapists and orthopaedic surgeons who specialise in treating and researching paediatric ACL injuries. Representatives from the American Orthopaedic Society for Sports Medicine, European Paediatric Orthopaedic Society, European Society for Sports Traumatology, Knee Surgery & Arthroscopy, International Society of Arthroscopy Knee Surgery and Orthopaedic Sports Medicine, Pediatric Orthopaedic Society of North America and Sociedad Latinoamericana de Artroscopia, Rodilla y Deporte attended...
February 24, 2018: British Journal of Sports Medicine
Reed A C Siemieniuk, Ian A Harris, Thomas Agoritsas, Rudolf W Poolman, Romina Brignardello-Petersen, Stijn Van de Velde, Rachelle Buchbinder, Martin Englund, Lyubov Lytvyn, Casey Quinlan, Lise Helsingen, Gunnar Knutsen, Nina Rydland Olsen, Helen Macdonald, Louise Hailey, Hazel M Wilson, Anne Lydiatt, Annette Kristiansen
No abstract text is available yet for this article.
March 2018: British Journal of Sports Medicine
Luis E P Tírico, Julie C McCauley, Pamela A Pulido, William D Bugbee
BACKGROUND: Cartilage repair algorithms use lesion size to choose surgical techniques when selecting a cartilage repair procedure. The association of fresh osteochondral allograft (OCA) size with graft survivorship and subjective patient outcomes is still unknown. PURPOSE: To determine if lesion size (absolute or relative) affects outcomes after OCA transplantation. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: The study included 156 knees in 143 patients who underwent OCA transplantation from 1998 to 2014 for isolated femoral condyle lesions...
January 1, 2018: American Journal of Sports Medicine
Yorikatsu Omi, Dai Sugimoto, Setsurou Kuriyama, Tomohisa Kurihara, Kenji Miyamoto, Songjo Yun, Tatsuhiro Kawashima, Norikazu Hirose
BACKGROUND: Programs to prevent anterior cruciate ligament (ACL) injuries in female basketball players are scarce. Also, ACL injury prevention training that focuses on hip joint function has not been reported. PURPOSE: To determine the effectiveness of a hip-focused ACL injury prevention program in female basketball players. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A prospective intervention study was conducted for 12 years...
January 1, 2018: American Journal of Sports Medicine
Keiko Amano, Janet L Huebner, Thomas V Stabler, Matthew Tanaka, Charles E McCulloch, Iryna Lobach, Nancy E Lane, Virginia B Kraus, C Benjamin Ma, Xiaojuan Li
BACKGROUND: Anterior cruciate ligament tears can lead to posttraumatic osteoarthritis. In addition to biomechanical factors, changes in biochemical profiles within the knee joint after injury and anterior cruciate ligament reconstruction (ACLR) may play a role in accelerating joint degeneration. Hypothesis/Purpose: It was hypothesized that cartilage matrix composition after ACLR is associated with the degree of inflammatory response after initial injury. This study evaluated the association between the inflammatory response after injury-as indicated by cytokine, metalloproteinase, and cartilage degradation marker concentrations in synovial fluid-and articular cartilage degeneration, measured by T1ρ and T2 quantitative magnetic resonance imaging up to 3 years after ACLR...
January 1, 2018: American Journal of Sports Medicine
Nicholas G Mohtadi, Denise S Chan
BACKGROUND: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR...
October 1, 2017: American Journal of Sports Medicine
Christopher M LaPrade, David M Civitarese, Matthew T Rasmussen, Robert F LaPrade
The posterior cruciate ligament (PCL) is recognized as an essential stabilizer of the knee. However, the complexity of the ligament has generated controversy about its definitive role and the recommended treatment after injury. A proper understanding of the functional role of the PCL is necessary to minimize residual instability, osteoarthritic progression, and failure of additional concomitant ligament graft reconstructions or meniscal repairs after treatment. Recent anatomic and biomechanical studies have elucidated the surgically relevant quantitative anatomy and confirmed the codominant role of the anterolateral and posteromedial bundles of the PCL...
December 2015: American Journal of Sports Medicine
Robert C Manske, Daniel Prohaska
Patellar instability is a common problem seen by physical therapists, athletic trainers and orthopedic surgeons. Although following an acute dislocation, conservative rehabilitation is usually the first line of defense; refractory cases exist that may require surgical intervention. Substantial progress has been made in the understanding of the medial patellofemoral ligament (MPFL) and its role as the primary stabilizer to lateral patellar displacement. Medial patellofemoral ligament disruption is now considered to be the essential lesion following acute patellar dislocation due to significantly high numbers of ruptures following this injury...
June 2017: International Journal of Sports Physical Therapy
Stephanie R Filbay, Ewa M Roos, Richard B Frobell, Frank Roemer, Jonas Ranstam, L Stefan Lohmander
AIM: Identify injury-related, patient-reported and treatment-related prognostic factors for 5-year outcomes in acutely ACL-ruptured individuals managed with early reconstruction plus exercise therapy, exercise therapy plus delayed reconstruction or exercise therapy alone. METHODS: Exploratory analysis of the Knee Anterior Cruciate Ligament, Nonsurgical versus Surgical Treatment (KANON) trial (ISRCTN84752559). Relationships between prognostic factors (baseline cartilage, meniscus and osteochondral damage, baseline extension deficit, baseline patient-reported outcomes, number of rehabilitation visits, graft/contralateral ACL rupture, non-ACL surgery and ACL treatment strategy) and 5-year Knee Injury and Osteoarthritis Outcome Score (KOOS) pain, symptoms, sport/recreation and quality of life (QOL) scores were explored using multivariable linear regression...
November 2017: British Journal of Sports Medicine
Paul W Kline, Jeremy Burnham, Michael Yonz, Darren Johnson, Mary Lloyd Ireland, Brian Noehren
PURPOSE: Quadriceps strength and single-leg hop performance are commonly evaluated prior to return to sport after anterior cruciate ligament reconstruction (ACLR). However, few studies have documented potential hip strength deficits after ACLR, or ascertained the relative contribution of quadriceps and hip strength to hop performance. METHODS: Patients cleared for return to sports drills after ACLR were compared to a control group. Participants' peak isometric knee extension, hip abduction, hip extension, and hip external rotation (HER) strength were measured...
April 4, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Robert D Bronstein, Joseph C Schaffer
The knee is one of the most commonly injured joints in the body. Its superficial anatomy enables diagnosis of the injury through a thorough history and physical examination. Examination techniques for the knee described decades ago are still useful, as are more recently developed tests. Proper use of these techniques requires understanding of the anatomy and biomechanical principles of the knee as well as the pathophysiology of the injuries, including tears to the menisci and extensor mechanism, patellofemoral conditions, and osteochondritis dissecans...
May 2017: Journal of the American Academy of Orthopaedic Surgeons
Eric Hamrin Senorski, Kristian Samuelsson, Christoffer Thomeé, Susanne Beischer, Jón Karlsson, Roland Thomeé
PURPOSE: To characterise patients who returned to knee-strenuous sports after an anterior cruciate ligament (ACL) reconstruction. METHODS: Data from isotonic tests of muscle function and patient-reported outcome measures, Tegner activity scale (Tegner and Lysholm in Clin Orthop Relat Res 198:43-49, 1985), physical activity scale, knee injury and osteoarthritis scale and knee self-efficacy scale were extracted from a registry. The 157 included patients, 15-30 years of age, had undergone primary ACL reconstruction and were all involved in knee-strenuous sports, i...
May 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Timothy J Hunt
Platelet-rich plasma injections, in a systematic review and meta-analysis of 10 Level I randomized control trials, were found to provide more pain relief and better functional outcomes than hyaluronic acid in patients with knee osteoarthritis at 12 months after injection. The time has come for those of us who have not yet tried platelet-rich plasma injections in our patients with symptomatic knee osteoarthritis to do so.
March 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
David John Saxby, Adam L Bryant, Luca Modenese, Pauline Gerus, Bryce A Killen, Jason Konrath, Karine Fortin, Tim V Wrigley, Kim L Bennell, Flavia M Cicuttini, Christopher Vertullo, Julian A Feller, Tim Whitehead, Price Gallie, David G Lloyd
PURPOSE: To investigate differences in anterior cruciate ligament-reconstructed (ACLR) and healthy individuals in terms of the magnitude of the tibiofemoral contact forces, as well as the relative muscle and external load contributions to those contact forces, during walking, running, and sidestepping gait tasks. METHODS: A computational EMG-driven neuromusculoskeletal model was used to estimate the muscle and tibiofemoral contact forces in those with single-bundle combined semitendinosus and gracilis tendon autograft ACLR (n = 104, 29...
November 2016: Medicine and Science in Sports and Exercise
Jacob John Capin, Ryan Zarzycki, Amelia Arundale, Kathleen Cummer, Lynn Snyder-Mackler
BACKGROUND: Movement asymmetries during walking are common after anterior cruciate ligament (ACL) injury and reconstruction and may influence the early development of posttraumatic osteoarthritis. Preoperative neuromuscular training (like perturbation training, which is neuromuscular training requiring selective muscle activation in response to surface perturbations) improves gait asymmetries and functional outcomes among people who are ACL-deficient, but the effect of postoperative perturbation training on gait mechanics after ACL reconstruction is unknown...
October 2017: Clinical Orthopaedics and related Research
Etienne Cavaignac, Benoit Coulin, Philippe Tscholl, Nik Nik Mohd Fatmy, Victoria Duthon, Jacques Menetrey
BACKGROUND: The quadriceps tendon (QT) autograft is known as an effective graft for anterior cruciate ligament (ACL) reconstruction and shows a similar functional outcome to the bone-patellar tendon-bone (BPTB) in randomized controlled trials, with a lesser incidence of complications. Up until now, only 2 studies have compared QT to hamstring tendon (HT) autograft. HYPOTHESIS: The functional outcomes of the QT technique are at least as good as those of the HT technique, with the same morbidity...
May 2017: American Journal of Sports Medicine
Timothy E Hewett, Nathaniel A Bates
BACKGROUND: Preventive medicine techniques have alleviated billions of dollars' worth of the economic burden in the medical care system through the implementation of vaccinations and screenings before the onset of disease symptoms. Knowledge of biomechanical tendencies has progressed rapidly over the past 20 years such that clinicians can identify, in healthy athletes, the underlying mechanisms that lead to catastrophic injuries such as anterior cruciate ligament (ACL) ruptures. As such, preventive medicine concepts can be applied to noncontact musculoskeletal injuries to reduce the economic burden of sports medicine treatments and enhance the long-term health of athletes...
September 2017: American Journal of Sports Medicine
Bertrand Sonnery-Cottet, Adnan Saithna, Maxime Cavalier, Charles Kajetanek, Eduardo Frois Temponi, Matt Daggett, Camilo Partezani Helito, Mathieu Thaunat
BACKGROUND: Graft failure and low rates of return to sport are major concerns after anterior cruciate ligament (ACL) reconstruction, particularly in a population at risk. PURPOSE: To evaluate the association between reconstruction techniques and subsequent graft rupture and return-to-sport rates in patients aged 16 to 30 years participating in pivoting sports. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A prospective study of patients undergoing primary ACL reconstruction with a bone-patellar tendon-bone (B-PT-B) graft, quadrupled hamstring tendon (4HT) graft, or hamstring tendon graft combined with anterolateral ligament reconstruction (HT+ALL) was conducted by the Scientific ACL NeTwork International (SANTI) Study Group...
June 2017: American Journal of Sports Medicine
2017-03-12 18:14:58
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