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American Journal of Sports Medicine

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https://www.readbyqxmd.com/read/28530851/chondral-injuries-and-irreparable-meniscal-tears-among-adolescents-with-anterior-cruciate-ligament-or-meniscal-tears-are-more-common-in-patients-with-public-insurance
#1
Ariel A Williams, Nickolas S Mancini, Matthew J Solomito, Carl W Nissen, Matthew D Milewski
BACKGROUND: Access to health care services is a critical component of health care reform and may differ among patients with different types of insurance. Hypothesis/Purpose: The purpose was to compare adolescents with private and public insurance undergoing surgery for anterior cruciate ligament (ACL) and/or meniscal tears. We hypothesized that patients with public insurance would have a delayed presentation from the time of injury and therefore would have a higher incidence of chondral injuries and irreparable meniscal tears and lower preoperative International Knee Documentation Committee (IKDC) scores than patients with private insurance...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28530850/fresh-osteochondral-allograft-transplantation-is-graft-storage-time-associated-with-clinical-outcomes-and-graft-survivorship
#2
Kenneth J Schmidt, Luís E Tírico, Julie C McCauley, William D Bugbee
BACKGROUND: Regulatory concerns and the popularity of fresh osteochondral allograft (OCA) transplantation have led to a need for prolonged viable storage of osteochondral grafts. Tissue culture media allow a longer storage time but lead to chondrocyte death within the tissue. The long-term clinical consequence of prolonged storage is unknown. HYPOTHESIS: Patients transplanted with OCAs with a shorter storage time would have lower failure rates and better clinical outcomes than those transplanted with OCAs with prolonged storage...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28530451/effect-of-high-volume-injection-platelet-rich-plasma-and-sham-treatment-in-chronic-midportion-achilles-tendinopathy-a-randomized-double-blinded-prospective-study
#3
Anders Ploug Boesen, Rudi Hansen, Morten Ilum Boesen, Peter Malliaras, Henning Langberg
BACKGROUND: Injection therapies are often considered alongside exercise for chronic midportion Achilles tendinopathy (AT), although evidence of their efficacy is sparse. PURPOSE: To determine whether eccentric training in combination with high-volume injection (HVI) or platelet-rich plasma (PRP) injections improves outcomes in AT. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: A total of 60 men (age, 18-59 years) with chronic (>3 months) AT were included and followed for 6 months (n = 57)...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28520463/a-preclinical-assessment-of-early-continuous-passive-motion-and-treadmill-therapeutic-exercises-for-generating-chondroprotective-effects-after-anterior-cruciate-ligament-rupture
#4
Nai-Jen Chang, Kuan-Wei Lee, Chih-Jou Chu, Ming-You Shie, Pei-Hsi Chou, Chih-Chan Lin, Peir-In Liang
BACKGROUND: Anterior cruciate ligament (ACL) injury is a well-known risk factor for the development of posttraumatic osteoarthritis (PTOA). However, whether using continuous passive motion (CPM) with or without additional treadmill exercise (TRE) in early ACL injury might provide chondroprotective effects and further decrease the risk of PTOA has yet to be determined. HYPOTHESIS: CPM may offer an enhanced chondroprotective effect, but TRE may attenuate that effect due to the mechanical stress on the joint and inflammatory cytokines in the joint...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28520461/clinical-outcome-after-arthroscopic-debridement-and-microfracture-for-osteochondritis-dissecans-of-the-capitellum
#5
Rens Bexkens, Kim I M van den Ende, Paul T Ogink, Christiaan J A van Bergen, Michel P J van den Bekerom, Denise Eygendaal
BACKGROUND: Various surgical treatment techniques have been developed to treat capitellar osteochondritis dissecans; however, the optimal technique remains the subject of ongoing debate. PURPOSE: To evaluate clinical outcomes after arthroscopic debridement and microfracture for advanced capitellar osteochondritis dissecans. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Between 2008 and 2015, the authors followed 77 consecutive patients (81 elbows) who underwent arthroscopic debridement and microfracture, and loose body removal if needed, for advanced capitellar osteochondritis dissecans...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28520460/the-influence-of-body-mass-index-on-outcomes-after-hip-arthroscopic-surgery-with-capsular-plication-for-the-treatment-of-femoroacetabular-impingement
#6
Bryan M Saltzman, Benjamin D Kuhns, Bryce Basques, Timothy Leroux, Jennifer Alter, Richard C Mather, Michael J Salata, Shane J Nho
BACKGROUND: It remains unknown how variations in body mass index (BMI) influence outcomes after primary hip arthroscopic surgery with capsular plication for femoroacetabular impingement (FAI). PURPOSE: To evaluate the effect that abnormal BMI (namely, overweight, obese, morbidly obese, and underweight) versus normal weight has on patient-reported clinical outcomes more than 2 years postoperatively from primary hip arthroscopic surgery with capsular plication by a single surgeon...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28520458/anchored-transosseous-equivalent-versus-anchorless-transosseous-rotator-cuff-repair-a-biomechanical-analysis-in-a-cadaveric-model
#7
Kelly G Kilcoyne, Stanley G Guillaume, Catherine V Hannan, Evan R Langdale, Stephen M Belkoff, Uma Srikumaran
BACKGROUND: The original approach for the repair of torn rotator cuffs involved an open technique with sutures passing through the greater tuberosity and tendon. The development of suture anchors allowed for an all-arthroscopic approach with anchor configurations attempting to re-create a transosseous fixation pattern. Presently, an arthroscopic approach can be combined with a transosseous suture configuration without using anchors. PURPOSE: To evaluate cyclic loading, ultimate load to failure, and the failure mechanisms of transosseous-equivalent (TOE) repair with anchors and anchorless transosseous (AT) repair of rotator cuff tears...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28511593/convergence-insufficiency-identifies-athletes-at-risk-of-prolonged-recovery-from-sport-related-concussion
#8
Kevin M DuPrey, David Webner, Adam Lyons, Crystal H Kucuk, Jeffrey T Ellis, Peter F Cronholm
BACKGROUND: Sensitive and specific screening methods are needed to identify athletes at risk of prolonged recovery after sport-related concussion (SRC). Convergence insufficiency (CI) is a common finding in concussed athletes. PURPOSE: To assess the relationship between CI and recovery after SRC at the initial office visit. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: In this retrospective cohort study, 270 athletes (147 male, 123 female), mean ± SD age 14...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28510478/two-tunnel-transtibial-repair-of-radial-meniscus-tears-produces-comparable-results-to-inside-out-repair-of-vertical-meniscus-tears
#9
Mark E Cinque, Andrew G Geeslin, Jorge Chahla, Grant J Dornan, Robert F LaPrade
BACKGROUND: Radial meniscus tears disrupt the circumferential fibers and thereby compromise meniscus integrity. Historically, radial tears were often treated with meniscectomy because of an incomplete understanding of the biomechanical consequences of these tears, limited information regarding the biomechanical performance of repair, and the technical difficulty associated with repair. There is a paucity of studies on the outcomes of the repair of radial meniscus tears. Purpose/Hypothesis: The purpose was to determine the outcomes of 2-tunnel transtibial repair of radial meniscus tears and compare these results to the outcomes of patients who underwent the repair of vertical meniscus tears with a minimum of 2-year follow-up...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28510477/performance-based-outcomes-after-anterior-cruciate-ligament-reconstruction-in-professional-athletes-differ-between-sports
#10
Harry T Mai, Danielle S Chun, Andrew D Schneider, Brandon J Erickson, Ryan D Freshman, Benjamin Kester, Nikhil N Verma, Wellington K Hsu
BACKGROUND: Excellent outcomes have been reported for anterior cruciate ligament (ACL) reconstruction (ACLR) in professional athletes in a number of different sports. However, no study has directly compared these outcomes between sports. PURPOSE: To determine if differences in performance-based outcomes exist after ACLR between professional athletes of each sport. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: National Football League (NFL), National Basketball Association (NBA), National Hockey League (NHL), and Major League Baseball (MLB) athletes undergoing primary ACLR for an acute rupture were identified through an established protocol of injury reports and public archives...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28510474/increased-magnetic-resonance-imaging-signal-of-the-lateral-patellar-facet-cartilage-a-functional-marker-for-patellar-instability
#11
Anna L Falkowski, Carlo Camathias, Jon A Jacobson, Olaf Magerkurth
BACKGROUND: In the knee joint, predisposition for patellar instability can be assessed by an abnormal Insall-Salvati index, tibial tuberosity-trochlear groove (TTTG) distance, and abnormal shape of patella and trochlea. Given the complex anatomic features of the knee joint with varying positions of the patella during motion, the presence of a single or even a combination of these factors does not inevitably result in patellar instability. After trocheoplasty in patients with trochlear dysplasia, assessment of trochlear cartilage and subchondral bone is limited due to postoperative artifacts...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28499094/the-epidemiology-and-effect-of-sliding-injuries-in-major-and-minor-league-baseball-players
#12
Christopher L Camp, Frank C Curriero, Keshia M Pollack, Stephanie W Mayer, Andrea M Spiker, John D'Angelo, Struan H Coleman
BACKGROUND: Although sliding occurs frequently in professional baseball, little is known about the epidemiology and effect of injuries that occur during sliding in this population of elite athletes. PURPOSE: To describe the incidence and characteristics of sliding injuries, determine their effect in terms of time out of play, and identify common injury patterns that may represent appropriate targets for injury prevention programs in the future. STUDY DESIGN: Descriptive epidemiologic study...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28499093/the-segond-fracture-is-an-avulsion-of-the-anterolateral-complex
#13
Humza Shaikh, Elmar Herbst, Ata Amir Rahnemai-Azar, Marcio Bottene Villa Albers, Jan-Hendrik Naendrup, Volker Musahl, James J Irrgang, Freddie H Fu
BACKGROUND: The Segond fracture was classically described as an avulsion fracture of the anterolateral capsule of the knee. Recently, some authors have attributed its pathogenesis to the "anterolateral ligament" (ALL). Biomechanical studies that have attempted to reproduce this fracture in vitro have reported conflicting findings. PURPOSE: To determine the anatomic characteristics of the Segond fracture on plain radiographs and magnetic resonance imaging (MRI), to compare this location with the location of the ALL described in prior radiographic and anatomic publications, and to determine the fracture's attachments to the soft tissue anterolateral structures of the knee...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28486089/gout-can-increase-the-risk-of-receiving-rotator-cuff-tear-repair-surgery
#14
Shih-Wei Huang, Chin-Wen Wu, Li-Fong Lin, Tsan-Hon Liou, Hui-Wen Lin
BACKGROUND: Gout commonly involves joint inflammation, and clinical epidemiological studies on involved tendons are scant. Rotator cuff tears are the most common cause of shoulder disability, and surgery is one of the choices often adopted to regain previous function. PURPOSE: To investigate the risk of receiving rotator cuff repair surgery among patients with gout and to analyze possible risk factors to design an effective prevention strategy. STUDY DESIGN: Cohort study; Level of evidence, 3...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28474965/the-effect-of-subcritical-bone-loss-and-exposure-on-recurrent-instability-after-arthroscopic-bankart-repair-in-intercollegiate-american-football
#15
Jonathan F Dickens, Brett D Owens, Kenneth L Cameron, Thomas M DeBerardino, Brendan D Masini, Karen Y Peck, Steven J Svoboda
BACKGROUND: There is no consensus on the optimal method of stabilization (arthroscopic or open) in collision athletes with anterior shoulder instability. PURPOSE: To examine the effect of "subcritical" bone loss and football-specific exposure on the rate of recurrent shoulder instability after arthroscopic stabilization in an intercollegiate American football population. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: Fifty intercollegiate football players underwent primary arthroscopic stabilization for anterior shoulder instability and returned to football for at least a single season...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28467122/return-to-play-and-decreased-performance-after-anterior-cruciate-ligament-reconstruction-in-national-football-league-defensive-players
#16
Connor R Read, Kyle T Aune, E Lyle Cain, Glenn S Fleisig
BACKGROUND: Anterior cruciate ligament (ACL) injuries occur commonly in football. Recent work has reported ACL reconstruction (ACLR) as one of several orthopaedic procedures with unfavorable outcomes for professional athletes. The performance impact to defensive players after surgery has not been quantified. PURPOSE: To quantify the effect of ACLR on the performance of defensive players by comparing them to a cohort of matched controls as well as to measure the effect of ACLR on athletes' career length in the National Football League (NFL)...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28463547/economic-decision-model-for-first-time-traumatic-patellar-dislocations-in-adolescents
#17
Benedict U Nwachukwu, Conan So, William W Schairer, Beth E Shubin-Stein, Sabrina M Strickland, Daniel W Green, Emily R Dodwell
BACKGROUND: The surgical management of traumatic patellar dislocations in adolescents is associated with a lower rate of recurrent dislocations compared with nonoperative care. However, the attendant cost of surgery and the quality-of-life benefit of a surgical treatment strategy are unclear. PURPOSE: To compare the cost-utility of 3 management strategies for acute first-time patellar dislocations in adolescents: (1) nonoperative treatment only, (2) initial nonoperative treatment with surgery only for recurrent dislocations, and (3) immediate surgery...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28463535/risk-factors-and-time-to-recurrent-ipsilateral-and-contralateral-patellar-dislocations
#18
Tyson C Christensen, Thomas L Sanders, Ayoosh Pareek, Rohith Mahan, Diane L Dahm, Aaron J Krych
BACKGROUND: Previous studies have reported variable rates of recurrent lateral patellar instability mainly because of limited cohort sizes. In addition, there is currently a lack of information on contralateral patellar instability. PURPOSE: To evaluate the rate of recurrent ipsilateral patellar dislocations and contralateral patellar dislocations after a first-time lateral patellar dislocation. Additionally, risk factors associated with recurrent dislocations (ipsilateral or contralateral) and time to recurrence were investigated...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28463534/incidence-and-detection-of-meniscal-ramp-lesions-on-magnetic-resonance-imaging-in-patients-with-anterior-cruciate-ligament-reconstruction
#19
Nicholas N DePhillipo, Mark E Cinque, Jorge Chahla, Andrew G Geeslin, Lars Engebretsen, Robert F LaPrade
BACKGROUND: Meniscal ramp lesions have been reported to be present in 9% to 17% of patients undergoing anterior cruciate ligament (ACL) reconstruction. Detection at the time of arthroscopy can be accomplished based on clinical suspicion and careful evaluation. Preoperative assessment via magnetic resonance imaging (MRI) has been reported to have a low sensitivity in identifying meniscal ramp lesions. PURPOSE: To investigate the incidence of meniscal ramp lesions in patients with ACL tears and the sensitivity of preoperative MRI for the detection of ramp lesions...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28467100/augmented-versus-nonaugmented-repair-of-acute-achilles-tendon-rupture-a-systematic-review-and-meta-analysis
#20
Yi-Jun Zhang, Chi Zhang, Quan Wang, Xiang-Jin Lin
BACKGROUND: Although simple end-to-end repair of the Achilles tendon is common, many augmented repair protocols have been implemented for acute Achilles tendon rupture. However, whether augmented repair is better than nonaugmented repair of an acute Achilles tendon rupture is still unknown. PURPOSE: To conduct a meta-analysis to determine whether augmented surgical repair of an acute Achilles tendon rupture improved subjective patient satisfaction without an increase in rerupture rates...
April 1, 2017: American Journal of Sports Medicine
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