The American Journal of Sports Medicine This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Preparticipation Evaluation of the Young Athlete: What an Orthopaedic Surgeon Needs to Know
The preparticipation evaluation (PPE) is a widely used tool for detecting health conditions that may delay or disqualify athletic participation. The medical interview is the most valuable tool for identifying athletes who may be at increased risk for injury. Physical examination is tailored to identifying cardiac abnormalities or factors that may place an athlete at increased risk for injury. Although practiced in Europe, universal cardiac screening with electrocardiography is not currently recommended in the United States largely due to the high rate of false-positive results. Neuropsychological testing for management of ...
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Miller, D. J., Blum, A. B., Levine, W. N., Ahmad, C. S., Popkin, C. A. Tags: Medical aspects of sports, Pediatric sports medicine Current Concepts Source Type: research

Implantation of Autologous Cartilage Chips Improves Cartilage Repair Tissue Quality in Osteochondral Defects: A Study in Göttingen Minipigs
Conclusion: The presence of cartilage chips in an osteochondral defect facilitated the formation of fibrocartilage as opposed to fibrous tissue at both 6 and 12 months posttreatment. The implanted chips were present in the defect and viable after 12 months. Clinical Relevance: This study substantiates the chondrogenic role of cartilage chips in osteochondral defects. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Christensen, B. B., Foldager, C. B., Olesen, M. L., Hede, K. C., Lind, M. Tags: Biology of cartilage, Tissue engineering, Knee, articular cartilage, Articular cartilage resurfacing Biology and Translational Research Source Type: research

Plate Versus Intramedullary Nail Fixation of Anterior Tibial Stress Fractures: A Biomechanical Study
Conclusion: Plate fixation was superior to IM nail fixation in limiting the opening of a simulated midtibial stress fracture, and anterior-posterior placement of the plate was an important variable for this construct. Clinical Relevance: Results from these tests can help guide the selection of fixation hardware for patients requiring surgical treatment for a midtibial stress fracture. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Markolf, K. L., Cheung, E., Joshi, N. B., Boguszewski, D. V., Petrigliano, F. A., McAllister, D. R. Tags: Biomechanics, bone, Stress fractures, Military training, Running Foot, Ankle, and Leg Source Type: research

Lateral Acetabular Coverage Predicts the Size of the Hip Labrum
Conclusion: Patients with borderline dysplasia and frank dysplasia exhibited increased values of labral length in the weightbearing zone, potentially indicating a compensatory reaction to the lack of bony coverage. Labral length may serve as an instability marker and inform clinical decision making for patients with borderline dysplasia. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Garabekyan, T., Ashwell, Z., Chadayammuri, V., Jesse, M. K., Pascual-Garrido, C., Petersen, B., Mei-Dan, O. Tags: Hip, femoroactabular impingement, Hip arthroscopy, Imaging, magnetic resonance Hip and Thigh Source Type: research

Return to Play After Periacetabular Osteotomy for Treatment of Acetabular Dysplasia in Adolescent and Young Adult Athletes
Conclusion: Most athletic patients undergoing PAO are female patients and show postoperative improvements in function and return to athletic play. However, although there was no decline in overall activity level at a mean of 3 years, self-assessed athletic performance was attained and maintained in approximately one-half of the study population. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Heyworth, B. E., Novais, E. N., Murray, K., Cvetanovich, G., Zurakowski, D., Millis, M. B., Kim, Y.-j. Tags: Clinical assessment/Grading scales, Epidemiology, Hip/Pelvis/Thigh, Medical aspects of sports, Osteotomy Hip and Thigh Source Type: research

Sex Differences in the Incidence of Anterior Cruciate Ligament, Medial Collateral Ligament, and Meniscal Injuries in Collegiate and High School Sports: 2009-2010 Through 2013-2014
Conclusion: Knee injury rates varied by sex across 5 different sports in the HS and collegiate settings. Female athletes sustained ACL injuries at a higher rate than male athletes at both the HS and collegiate levels in these 5 sports; however, there was not a distinct sex disparity in MCL and meniscal injuries. Future studies should examine the rates of concomitant and recurrent injuries to inform injury prevention and rehabilitation programs. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Stanley, L. E., Kerr, Z. Y., Dompier, T. P., Padua, D. A. Tags: Epidemiology, Injury prevention, Knee, general, Knee ligaments, ACL Source Type: research

Incidence of and Factors Associated With the Decision to Undergo Anterior Cruciate Ligament Reconstruction 1 to 10 Years After Injury
Conclusion: In this study population of 1841 patients, 62% of patients received ACL reconstruction within 1 year of injury. Of patients treated nonoperatively for 1 year after ACL tears, 32% underwent delayed ACL reconstruction. Predictors of reconstruction beyond 1 year were young age (50% reduction in reconstruction per decade increased age) and baseline meniscal tear. Sex was not predictive for reconstruction beyond 1 year from injury. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Sanders, T. L., Maradit Kremers, H., Bryan, A. J., Kremers, W. K., Levy, B. A., Dahm, D. L., Stuart, M. J., Krych, A. J. Tags: Knee, general, Knee ligaments, general, Knee ligaments, ACL, Knee, meniscus Source Type: research

A Novel Silk Fiber-Based Scaffold for Regeneration of the Anterior Cruciate Ligament: Histological Results From a Study in Sheep
Conclusion: The novel silk fiber–based scaffold was able to stimulate ACL regeneration under in vivo conditions. Additional cell seeding led to increased tissue regeneration and decreased silk fiber content at 6 months, whereas these differences were not present at 12 months. Clinical Relevance: ACL regeneration using a silk fiber–based scaffold with and without additional cell seeding may provide a new treatment option after joint injuries. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Teuschl, A., Heimel, P., Nürnberger, S., van Griensven, M., Redl, H., Nau, T. Tags: Biology of ligament, Tissue engineering, Stem cell therapy, Knee ligaments, ACL Source Type: research

Modification of Knee Flexion Angle Has Patient-Specific Effects on Anterior Cruciate Ligament Injury Risk Factors During Jump Landing
Conclusion: Increasing the knee flexion angle during jump landing may be an effective intervention to improve knee biomechanical risk factors associated with an ACL injury. However, the fact that the flexion modification only influenced critical risk factors (the abduction angle and abduction moment) in participants who initially landed in an adducted position suggests that the selection of interventions to prevent ACL injuries should account for patient-specific characteristics. Clinical Relevance: The study helps elucidate how increasing the knee flexion angle affects lower body biomechanics and provided evidence for th...
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Favre, J., Clancy, C., Dowling, A. V., Andriacchi, T. P. Tags: Volleyball, Biomechanics, general, Injury prevention, Motion analysis/Kinesiology, Knee ligaments, ACL Source Type: research

The Inverted Discoid Meniscus Segment: Clinical, Radiographic, and Arthroscopic Description of a Hidden Tear Pattern
Conclusion: An inverted discoid segment occurs during adolescence, and it is more likely to occur in male patients and more likely to be associated with activity-related pain and injury compared with a noninverted symptomatic discoid meniscus. A discoid meniscus with an inverted segment does not have the standard radiographic and arthroscopic features normally associated with a discoid meniscus. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: LaMont, L., Ellis, H., Wise, K., Wilson, P. Tags: Anatomy, Knee, meniscus, Pediatric sports medicine Source Type: research

Degenerative Changes in the Knee 2 Years After Anterior Cruciate Ligament Rupture and Related Risk Factors: A Prospective Observational Follow-up Study
Conclusion: Two years after ACL rupture, early degenerative changes were assessed on MRI. Concomitant medial cartilage defect and meniscal injury, male sex, persistent bone marrow lesions in the medial tibiofemoral compartment, and joint effusion are risk factors for degenerative changes. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: van Meer, B. L., Oei, E. H. G., Meuffels, D. E., van Arkel, E. R. A., Verhaar, J. A. N., Bierma-Zeinstra, S. M. A., Reijman, M. Tags: Knee, general, Knee ligaments, ACL, Imaging, magnetic resonance Source Type: research

Effect of Trochlear Dysplasia on Outcomes After Isolated Soft Tissue Stabilization for Patellar Instability
Conclusion: This research has established a statistically significant correlation between trochlear dysplasia and disease-specific outcomes after MPFL-R surgery. Overall, there was evidence of significant improvement in disease-specific quality-of-life scores after patellofemoral stabilization surgery. This study is the largest cohort reported to date and therefore adds substantially to the evidence that trochlear dysplasia is a significant risk factor for and predictor of outcome among patients with patellofemoral instability. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Hiemstra, L. A., Kerslake, S., Loewen, M., Lafave, M. Tags: Knee, patella Source Type: research

Risk of Noncontact Anterior Cruciate Ligament Injuries Is Not Associated With Slope and Concavity of the Tibial Plateau in Recreational Alpine Skiers: A Magnetic Resonance Imaging-Based Case-Control Study of 121 Patients
Conclusion: Despite differences between sexes in knee anatomy and the injury risk, the sagittal and coronal slopes (LTS, MTS, CTS), as well as the concavity of the medial tibial plateau (MTD), were not associated with the risk of an ACL tear during a noncontact injury among recreational alpine skiers. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Blanke, F., Kiapour, A. M., Haenle, M., Fischer, J., Majewski, M., Vogt, S., Camathias, C. Tags: Knee ligaments, ACL, Skiing/Snowboarding Source Type: research

Incidence of Anterior Cruciate Ligament Tears and Reconstruction: A 21-Year Population-Based Study
Conclusion: With an annual incidence of 68.6 per 100,000 person-years, isolated ACL tears remain a common orthopaedic injury. Differences in age-specific incidence trends in male and female patients may potentially reflect differences in sports participation patterns through the high school and college years. The significant increase in the rate of ACL reconstruction over time may reflect changing surgical indications or an increasing desire among patients to return to high levels of activity after ACL injury. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Sanders, T. L., Maradit Kremers, H., Bryan, A. J., Larson, D. R., Dahm, D. L., Levy, B. A., Stuart, M. J., Krych, A. J. Tags: Knee, general, Knee ligaments, ACL Source Type: research

Multivariate Analysis of the Risk Factors for First-Time Noncontact ACL Injury in High School and College Athletes: A Prospective Cohort Study With a Nested, Matched Case-Control Analysis
Conclusion: Multivariate models provided more information about ACL injury risk than individual risk factors. Both male and female risk models included increased anterior-posterior knee laxity as a predictor of ACL injury but were otherwise dissimilar. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - May 31, 2016 Category: Sports Medicine Authors: Vacek, P. M., Slauterbeck, J. R., Tourville, T. W., Sturnick, D. R., Holterman, L.-A., Smith, H. C., Shultz, S. J., Johnson, R. J., Tourville, K. J., Beynnon, B. D. Tags: Injury prevention, Knee ligaments, ACL, Basketball, Football (American), Football (Soccer) Source Type: research