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.

Epidemiology of High School Sports-Related Injuries Resulting in Medical Disqualification: 2005-2006 Through 2013-2014 Academic Years
Conclusion: MDQ injuries vary by sport, sex, and type of athletic activity and occur most frequently as a result of player-player contact. These findings should prompt additional research into the development, implementation, and evaluation of targeted injury prevention efforts. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Tirabassi, J., Brou, L., Khodaee, M., Lefort, R., Fields, S. K., Comstock, R. D. Tags: Head injuries/concussion, Pediatric sports medicine, Football (American) Epidemiology and Injury Prevention Source Type: research

Sport Participation and the Risk of Anterior Cruciate Ligament Reconstruction in Adolescents: A Population-based Prospective Cohort Study (The Young-HUNT Study)
Conclusion: Participating in level I sports and sport competitions significantly increased the risk of undergoing primary ACLR. Preventive strategies should be implemented to reduce the incidence and future burden of ACLR. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Johnsen, M. B., Guddal, M. H., Smastuen, M. C., Moksnes, H., Engebretsen, L., Storheim, K., Zwart, J.-A. Tags: Epidemiology, Injury prevention, Knee ligaments, ACL Epidemiology and Injury Prevention Source Type: research

Biological Reconstruction of the Osteochondral Unit After Failed Focal Resurfacing of a Chondral Defect in the Knee
(Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Goebel, L., Kohn, D., Madry, H. Tags: Knee, articular cartilage, Articular cartilage resurfacing Source Type: research

Effect of Changing the Joint Kinematics of Knees With a Ruptured Anterior Cruciate Ligament on the Molecular Biological Responses and Spontaneous Healing in a Rat Model
Conclusion: Our results suggest that changing the joint kinematics of knees with a ruptured ACL alters the molecular biological responses and leads to spontaneous healing. These data support our hypothesis that the mechanotransduction mechanism mediates molecular responses and determines whether the ACL will heal. Clinical Relevance: Elucidating the relationship between the mechanotransduction mechanism and healing responses in knees with completely ruptured ACLs may result in the development of novel nonsurgical treatment that enables the ACL to spontaneously heal in patients who are not suitable for reconstruction. (Sou...
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Kokubun, T., Kanemura, N., Murata, K., Moriyama, H., Morita, S., Jinno, T., Ihara, H., Takayanagi, K. Tags: Biology of ligament, Biomechanics, ligament, Allografts, Knee ligaments, ACL, Aging athlete Source Type: research

Regional Variation in the Mechanical and Microstructural Properties of the Human Anterior Cruciate Ligament
Conclusion: Most microstructural and material properties evaluated in this study appear to follow a linear gradient across the ACL, rather than varying by bundle. Clinical Relevance: This AM-to-PL variation provides a more accurate description of functional tissue anatomy and can be used to assess and guide techniques of ACL reconstruction. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Skelley, N. W., Castile, R. M., Cannon, P. C., Weber, C. I., Brophy, R. H., Lake, S. P. Tags: Anatomy, Biomechanics, ligament, Knee ligaments, ACL, Imaging and radiology, general Source Type: research

Revision Meniscal Allograft Transplantation in the Lateral Compartment: Disparate MRI and Clinical Outcomes During the Early Postoperative Period
Conclusion: The MRI findings showed that poor or insufficient meniscal healing to the host joint capsule was the major drawback of RMAT. Although more than half of our patients experienced clinical improvement after RMAT, the short-term graft survival was inferior to that of primary MATs in the literature. Our findings suggest that this challenging revision procedure requires great caution, especially with regard to the effects of poor host tissue quality on meniscal healing. Although RMAT can be an effective treatment, close observation with routine MRI evaluation is necessary during the early remodeling period to assess ...
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Lee, B.-S., Bin, S.-I., Kim, J.-M., Kim, W.-K., Kim, J. H. Tags: Knee, meniscus, Allografts, Imaging, magnetic resonance Source Type: research

Which Are the Most Reliable Methods of Predicting the Meniscal Size for Transplantation?
Conclusion: Some viable alternatives to MRI have been suggested. For the lateral meniscus, anthropometric data are an alternative for width, and the Yoon method can be used to assess length. For the medial meniscus, the Pollard method is considered a satisfactory alternative. This study emphasized the importance of measuring the width and length of the meniscus independently during preoperative sizing for a meniscal allograft transplantation procedure. Using MRI as a gold standard, the study also proposed other less costly and satisfactory methods of obtaining such measurements. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Kaleka, C. C., Netto, A. S., Silva, J. C. A. e., Toma, M. K., de Paula Leite Cury, R., Severino, N. R., Santili, C. Tags: Knee, general, Knee, meniscus, Allografts, Imaging and radiology, general, Imaging, magnetic resonance Source Type: research

Osteochondral Allograft Transplantation in Patients With Osteochondritis Dissecans of the Knee
Conclusion: OCA transplantation was an effective treatment for OCD of the knee, with a low rate of graft failure, significant improvement in pain and function scores, and high patient satisfaction. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Sadr, K. N., Pulido, P. A., McCauley, J. C., Bugbee, W. D. Tags: Knee, articular cartilage, Knee, osteochondritis dissecans, Allografts Source Type: research

Intertunnel Relationships in the Tibia During Reconstruction of Multiple Knee Ligaments: How to Avoid Tunnel Convergence
Conclusion: There is a high risk of tunnel convergence in the proximal tibia during the reconstruction of multiple knee ligaments. Aiming the POL tunnel 15 mm medial to the Gerdy tubercle and the sMCL tunnel transversely across the tibia (anterior to the fibula) and 30° distal to the horizontal plane reduces the risk of tunnel convergence. Clinical Relevance: The tunnel orientation of the POL and sMCL on the tibia should be adjusted to avoid convergence with the PCL tunnel during multiple ligament knee reconstruction. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Moatshe, G., Slette, E. L., Engebretsen, L., LaPrade, R. F. Tags: Knee ligaments, multiple ligament injuries Source Type: research

Trochleoplasty as a Solitary Treatment for Recurrent Patellar Dislocation Results in Good Clinical Outcome in Adolescents
Conclusion: In this study, trochleoplasty as a solitary treatment for recurrent patellofemoral dislocations in patients with trochlear dysplasia resulted in good clinical outcomes if severe torsional and axial malalignment was excluded. Kujala and Lysholm scores increased postoperatively, as well as subjective International Knee Documentation Committee assessment of outcomes, activity level, and overall satisfaction. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Camathias, C., Studer, K., Kiapour, A., Rutz, E., Vavken, P. Tags: Knee, patella Source Type: research

One-Stage Cartilage Repair Using a Hyaluronic Acid-Based Scaffold With Activated Bone Marrow-Derived Mesenchymal Stem Cells Compared With Microfracture: Five-Year Follow-up
Conclusion: Repair of chondral injury using a hyaluronic acid–based scaffold with activated bone marrow aspirate concentrate provides better clinical outcomes and more durable cartilage repair at medium-term follow-up compared with microfracture. Positive short-term clinical outcomes can be achieved with either microfracture or HA-BMAC. Cartilage repair using HA-BMAC leads to successful medium-term outcomes independent of age or lesion size. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Gobbi, A., Whyte, G. P. Tags: Stem cell therapy, Knee, articular cartilage Source Type: research

Incorporation of Hamstring Grafts Within the Tibial Tunnel After Anterior Cruciate Ligament Reconstruction: Magnetic Resonance Imaging of Suspensory Fixation Versus Interference Screws
Conclusion: ASF provides more favorable conditions than RIS for the incorporation and ligamentization of 4ST grafts within the tibial tunnel. The ASF system used showed very little tunnel widening, which suggests that it grants stabilization. The SNQ was also considerably better in the ASF group. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Colombet, P., Graveleau, N., Jambou, S. Tags: Knee ligaments, ACL, Imaging, magnetic resonance Source Type: research

The Relationship of the Femoral Physis and the Medial Patellofemoral Ligament in Children: A Cadaveric Study
Conclusion: The relationship of the femoral attachment of the MPFL and the medial femoral physis shows some anatomic variation. In all cases, the MPFL is close to the medial femoral physis, but the midpoint of the MPFL is at, slightly above, or slightly below the physis. Clinical Relevance: The relationship of the MPFL femoral attachment footprint to the femoral physis in the skeletally immature patient is not well understood, and access to pediatric cadaveric tissue is very limited. This small series demonstrates that there is considerable variation in the relationship between the MPFL and distal femoral physis. This ana...
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Shea, K. G., Styhl, A. C., Jacobs, J. C., Ganley, T. J., Milewski, M. D., Cannamela, P. C., Anderson, A. F., Polousky, J. D. Tags: Knee, patella, Pediatric sports medicine Source Type: research

Exploring the High Reinjury Rate in Younger Patients Undergoing Anterior Cruciate Ligament Reconstruction
Conclusion: The high rate of subsequent ACL injury in younger patients was confirmed. Early graft ruptures were more prevalent in patients who underwent surgery when they were younger than 18 years versus those in the 18- to 19-year age group. Males had higher rates of graft rupture than did females, with the youngest males (<18 years) at the highest risk in the investigated cohort. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Webster, K. E., Feller, J. A. Tags: Knee ligaments, ACL Source Type: research

Defining Thresholds for the Patient Acceptable Symptom State for the IKDC Subjective Knee Form and KOOS for Patients Who Underwent ACL Reconstruction
Conclusion: To our knowledge, this is the first study to identify the PASS thresholds for the IKDC-SKF and the KOOS subscales for individuals 1 to 5 years after ACL reconstruction. By identifying threshold values for the PASS, this study provides additional information to facilitate interpretation of the IKDC-SKF and KOOS in daily practice and clinical research related to ACL reconstruction. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - October 30, 2016 Category: Sports Medicine Authors: Muller, B., Yabroudi, M. A., Lynch, A., Lai, C.-L., van Dijk, C. N., Fu, F. H., Irrgang, J. J. Tags: Clinical assessment/Grading scales, Knee ligaments, ACL Source Type: research