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American Journal of Sports Medicine

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https://www.readbyqxmd.com/read/28806100/including-the-copenhagen-adduction-exercise-in-the-fifa-11-provides-missing-eccentric-hip-adduction-strength-effect-in-male-soccer-players-a-randomized-controlled-trial
#1
Joar Harøy, Kristian Thorborg, Andreas Serner, André Bjørkheim, Linn E Rolstad, Per Hölmich, Roald Bahr, Thor Einar Andersen
BACKGROUND: The FIFA 11+ was developed as a complete warm-up program to prevent injuries in soccer players. Although reduced hip adduction strength is associated with groin injuries, none of the exercises included in the FIFA 11+ seem to specifically target hip adduction strength. PURPOSE: To investigate the effect on eccentric hip adduction strength of the FIFA 11+ warm-up program with or without the Copenhagen adduction exercise. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806097/opioid-demand-before-and-after-anterior-cruciate-ligament-reconstruction
#2
Chris A Anthony, Robert W Westermann, Nicholas Bedard, Natalie Glass, Matt Bollier, Carolyn M Hettrich, Brian R Wolf
BACKGROUND: Surgeons and health care systems have received a call to action in an effort to curtail the current opioid epidemic. PURPOSE: To (1) define the natural history of opioid demand after anterior cruciate ligament reconstruction (ACLR), (2) consider how filling preoperative opioid prescriptions affects opioid demand after ACLR, and (3) evaluate the effect of additional procedures during ACLR and patient age on postoperative opioid demand. STUDY DESIGN: Cohort study; Level of evidence, 3...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806096/results-of-anterior-cruciate-ligament-reconstruction-with-patellar-tendon-autografts-objective-factors-associated-with-the-development-of-osteoarthritis-at-20-to-33-years-after-surgery
#3
K Donald Shelbourne, Rodney W Benner, Tinker Gray
BACKGROUND: Few studies exist that report objective radiographic and physical examination results at >20 years after anterior cruciate ligament (ACL) reconstruction. HYPOTHESIS: The risk of osteoarthritis (OA) at >20 years after surgery would be statistically significantly higher if an increased severity of factors was present. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: Between 1982 and 1994, 1428 knees met the inclusion criteria of being primary ACL surgery, having no existing OA or other ligamentous laxity, and having no known graft tear...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806095/a-midterm-evaluation-of-postoperative-platelet-rich-plasma-injections-on-arthroscopic-supraspinatus-repair-a-randomized-controlled-trial
#4
Jay R Ebert, Allan Wang, Anne Smith, Robert Nairn, William Breidahl, Ming Hao Zheng, Timothy Ackland
BACKGROUND: Platelet-rich plasma (PRP) has been applied as an adjunct to rotator cuff repair to improve tendon-bone healing and potentially reduce the incidence of subsequent tendon retears. PURPOSE: To investigate whether the midterm clinical and radiographic outcomes of arthroscopic supraspinatus repair are enhanced after repeated postoperative applications of PRP. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: A total of 60 patients (30 control; 30 PRP) were initially randomized to receive 2 ultrasound-guided injections of PRP to the tendon repair site at 7 and 14 days after double-row arthroscopic supraspinatus repair or not...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806094/the-relationship-of-throwing-arm-mechanics-and-elbow-varus-torque-within-subject-variation-for-professional-baseball-pitchers-across-82-000-throws
#5
Christopher L Camp, Travis G Tubbs, Glenn S Fleisig, Joshua S Dines, David M Dines, David W Altchek, Brittany Dowling
BACKGROUND: Likely due to the high level of strain exerted across the elbow during the throwing motion, elbow injuries are on the rise in baseball. To identify at-risk athletes and guide postinjury return-to-throw programs, a better understanding of the variables that influence elbow varus torque is desired. PURPOSE: To describe the within-subject relationship between elbow varus torque and arm slot and arm rotation in professional baseball pitchers. STUDY DESIGN: Descriptive laboratory study...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806093/critical-shoulder-angle-and-acromial-index-do-not-influence-24-month-functional-outcome-after-arthroscopic-rotator-cuff-repair
#6
Merrill Lee, Jerry Yongqian Chen, Ming Han Lincoln Liow, Hwei Chi Chong, Paul Chang, Denny Lie
BACKGROUND: Recent studies have shown a correlation between scapular geometry and the development of atraumatic rotator cuff tears. However, a paucity of literature is available on the effects of critical shoulder angle (CSA) and acromial index (AI) on functional outcomes after arthroscopic rotator cuff repair. Hypothesis/Purpose: The purpose was to investigate the influence of CSA and AI on 24-month functional outcomes after arthroscopic rotator cuff repair. The hypothesis was that a larger CSA or AI would result in poorer postoperative outcomes...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28806092/comparable-outcomes-after-bucket-handle-meniscal-repair-and-vertical-meniscal-repair-can-be-achieved-at-a-minimum-2-years-follow-up
#7
Gilbert Moatshe, Mark E Cinque, Jonathan A Godin, Alexander R Vap, Jorge Chahla, Robert F LaPrade
BACKGROUND: Meniscal tears can lead to significant pain and disability, necessitating surgical treatment. Nondisplaced vertical tears are usually smaller in size and can be repaired in most cases; however, bucket-handle tears are usually larger and displaced, and the repair of these tears can be challenging. Purpose/Hypothesis: The purpose was to report the outcomes after inside-out vertical mattress suture meniscal repair of bucket-handle tears and to compare these outcomes with those of patients who underwent repair of nondisplaced vertical meniscal tears with a minimum of 2 years' follow-up...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28800402/extracellular-matrix-cartilage-allograft-and-particulate-cartilage-allograft-for-osteochondral-lesions-of-the-knee-and-ankle-joints-a-systematic-review
#8
Dexter Seow, Youichi Yasui, Eoghan T Hurley, Andrew W Ross, Christopher D Murawski, Yoshiharu Shimozono, John G Kennedy
BACKGROUND: Extracellular matrix cartilage allografts (EMCAs) and particulate cartilage allografts (PCAs) are relatively new biologics that may improve the quality of cartilage regeneration after bone marrow stimulation. The increasing popularity of these novel biologics in the treatment of osteochondral lesions (OCLs) of the knee and ankle joints prompts a systematic evaluation of their efficacies. PURPOSE: The purpose of this systematic review was to clarify the effectiveness of EMCAs and PCAs on cartilage regeneration...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28787191/comparison-of-clinical-and-structural-outcomes-by-subscapularis-tendon-status-in-massive-rotator-cuff-tear
#9
Sung Hyun Lee, Dae Jin Nam, Se Jin Kim, Jeong Woo Kim
BACKGROUND: The subscapularis tendon is essential in maintaining normal glenohumeral biomechanics. However, few studies have addressed the outcomes of tears extending to the subscapularis tendon in massive rotator cuff tears. PURPOSE: To assess the clinical and structural outcomes of arthroscopic repair of massive rotator cuff tears involving the subscapularis. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Between January 2010 and January 2014, 122 consecutive patients with massive rotator cuff tear underwent arthroscopic rotator cuff repair...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28787187/perioperative-serum-lipid-status-and-statin-use-affect-the-revision-surgery-rate-after-arthroscopic-rotator-cuff-repair
#10
Jourdan M Cancienne, Stephen F Brockmeier, Scott A Rodeo, Brian C Werner
BACKGROUND: Recent animal studies have demonstrated that hyperlipidemia is associated with poor tendon-bone healing after rotator cuff repair; however, these findings have not been substantiated in human studies. PURPOSE: To examine any association between hyperlipidemia and the failure of arthroscopic rotator cuff repair requiring revision surgery and to investigate whether the use of statin lipid-lowering agents had any influence on observed associations. STUDY DESIGN: Cohort study; Level of evidence, 3...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28787185/sporting-activity-is-reduced-11-years-after-first-generation-autologous-chondrocyte-implantation-in-the-knee-joint
#11
Benjamin Erdle, Simon Herrmann, Stella Porichis, Markus Uhl, Nadir Ghanem, Hagen Schmal, Norbert Suedkamp, Philipp Niemeyer, Gian M Salzmann
BACKGROUND: Little is known about long-term sporting activity after periosteal autologous chondrocyte implantation (ACI-P) and its correlation to clinical, morphological, and ultrastructural cartilage characteristics on magnetic resonance imaging (MRI). PURPOSE: To evaluate long-term sporting activity after ACI-P and to correlate with clinical and MRI findings. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Patients who underwent ACI-P for isolated cartilage defects of the knee joint between 1997 and 2001 were analyzed for sporting ability for 3 different time points: lifetime until the onset of pain, the year before ACI-P, and 11 years (range, 9...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28783475/prevalence-and-management-of-coracoid-fracture-sustained-during-sporting-activities-and-time-to-return-to-sport-a-systematic-review
#12
Derrick M Knapik, Sunny H Patel, Robert J Wetzel, James E Voos
BACKGROUND: Coracoid fractures sustained during sporting activities are rare. Previous reports are limited to individual case reports, small case series, and retrospective analyses. PURPOSE: To systematically review the literature and identify coracoid fractures sustained during sporting activities to determine fracture prevalence, sporting activities/mechanisms, management, and time to return to sport. STUDY DESIGN: Systematic review. METHODS: A systematic review was conducted investigating all studies in the literature published between January 1970 and April 2017 that reported on athletes sustaining coracoid fractures during sporting activity...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28783473/heel-rise-height-deficit-1-year-after-achilles-tendon-rupture-relates-to-changes-in-ankle-biomechanics-6-years-after-injury
#13
Annelie Brorsson, Richard W Willy, Roy Tranberg, Karin Grävare Silbernagel
BACKGROUND: It is unknown whether the height of a heel-rise performed in the single-leg standing heel-rise test 1 year after an Achilles tendon rupture (ATR) correlates with ankle biomechanics during walking, jogging, and jumping in the long-term. PURPOSE: To explore the differences in ankle biomechanics, tendon length, calf muscle recovery, and patient-reported outcomes at a mean of 6 years after ATR between 2 groups that, at 1-year follow-up, had less than 15% versus greater than 30% differences in heel-rise height...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28783472/is-there-a-role-for-internal-bracing-and-repair-of-the-anterior-cruciate-ligament-a-systematic-literature-review
#14
Carola F van Eck, Orr Limpisvasti, Neal S ElAttrache
BACKGROUND: Renewed interest has arisen in arthroscopic anterior cruciate ligament (ACL) repair techniques. HYPOTHESIS: ACL repair with or without some form of internal bracing could lead to good outcomes in a carefully selected subset of patients. STUDY DESIGN: Systematic review. METHODS: An electronic database search was performed to identify 89 papers describing preclinical and clinical studies on the outcome of ACL repair...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28777666/shoulder-bone-geometry-affects-the-active-and-passive-axial-rotational-range-of-the-glenohumeral-joint
#15
Alexander Humphries, Srdjan Cirovic, Aliah F Shaheen
BACKGROUND: The range of motion of the glenohumeral joint varies substantially among individuals and is dependent on humeral position. How variation in shape of the humerus and scapula affects shoulder axial range of motion at various positions has not been established. PURPOSE: To quantify variation in the shape of the glenohumeral joint and investigate whether the scapula and humerus geometries affect the axial rotational range of the glenohumeral joint. STUDY DESIGN: Descriptive laboratory study...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28777665/an-anatomic-and-biomechanical-comparison-of-bankart-repair-configurations
#16
Christopher H Judson, Andreas Voss, Elifho Obopilwe, Felix Dyrna, Robert A Arciero, Kevin P Shea
BACKGROUND: Suture anchor repair for anterior shoulder instability can be performed using a number of different repair techniques, but none has been proven superior in terms of anatomic and biomechanical properties. Purpose/Hypothesis: The purpose was to compare the anatomic footprint coverage and biomechanical characteristics of 4 different Bankart repair techniques: (1) single row with simple sutures, (2) single row with horizontal mattress sutures, (3) double row with sutures, and (4) double row with labral tape...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28777662/clinical-and-radiological-regeneration-of-large-and-deep-osteochondral-defects-of-the-knee-by-bone-augmentation-combined-with-matrix-guided-autologous-chondrocyte-transplantation
#17
Johannes Zellner, Stephan Grechenig, Christian G Pfeifer, Werner Krutsch, Matthias Koch, Goetz Welsch, Madeleine Scherl, Johannes Seitz, Florian Zeman, Michael Nerlich, Peter Angele
BACKGROUND: Large osteochondral defects of the knee are a challenge for regenerative treatment. While matrix-guided autologous chondrocyte transplantation (MACT) represents a successful treatment for chondral defects, the treatment potential in combination with bone grafting by cancellous bone or bone block augmentation for large and deep osteochondral defects has not been evaluated. PURPOSE: To evaluate 1- to 3-year clinical outcomes and radiological results on magnetic resonance imaging (MRI) after the treatment of large osteochondral defects of the knee with bone augmentation and MACT...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28771373/biomechanical-evaluation-of-glenoid-reconstruction-with-an-implant-free-j-bone-graft-for-anterior-glenoid-bone-loss
#18
Leo Pauzenberger, Felix Dyrna, Elifho Obopilwe, Philipp R Heuberer, Robert A Arciero, Werner Anderl, Augustus D Mazzocca
BACKGROUND: The anatomic restoration of glenoid morphology with an implant-free J-shaped iliac crest bone graft offers an alternative to currently widely used glenoid reconstruction techniques. No biomechanical data on the J-bone grafting technique are currently available. PURPOSE: To evaluate (1) glenohumeral contact patterns, (2) graft fixation under cyclic loading, and (3) the initial stabilizing effect of anatomic glenoid reconstruction with the implant-free J-bone grafting technique...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28763623/the-effects-of-anterolateral-tenodesis-on-tibiofemoral-contact-pressures-and-kinematics
#19
Eivind Inderhaug, Joanna M Stephen, Hadi El-Daou, Andy Williams, Andrew A Amis
BACKGROUND: Anterolateral tenodeses are increasingly popular in combination with intra-articular anterior cruciate ligament reconstructions. Despite the perception of risk of overconstraint and lateral osteoarthritis, evidence is lacking regarding the effect of graft tensioning on knee kinematics and intra-articular compartmental joint pressures. PURPOSE: To investigate tibiofemoral joint contact pressures and kinematics related to an anterolateral lesion and the effectiveness of a MacIntosh tenodesis in restoring these when varying (1) graft tension and (2) tibial rotation during graft fixation...
August 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28759732/therapeutic-effects-of-doxycycline-on-the-quality-of-repaired-and-unrepaired-achilles-tendons
#20
Quynhhoa T Nguyen, Jolanta B Norelli, Adam Graver, Charles Ekstein, Johnathan Schwartz, Farzana Chowdhury, Mark C Drakos, Daniel A Grande, Nadeen O Chahine
BACKGROUND: Achilles tendon tears are devastating injuries, especially to athletes. Elevated matrix metalloproteinase (MMP) activity after a tendon injury has been associated with deterioration of the collagen network and can be inhibited with doxycycline (Doxy). HYPOTHESIS: Daily oral administration of Doxy will enhance the histological, molecular, and biomechanical quality of transected Achilles tendons. Additionally, suture repair will further enhance the quality of repaired tendons...
July 1, 2017: American Journal of Sports Medicine
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