Society News
(Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Tags: Society News and Announcements Source Type: research

Hybrid Tibia Fixation of Soft Tissue Grafts in Anterior Cruciate Ligament Reconstruction: A Systematic Review
Conclusion: Hybrid methods of tibial-sided graft fixation in ACL reconstruction result in stronger initial fixation and less side-to-side laxity after healing but do not change patient-reported outcomes at 1- to 3-year follow-up. Registration: PROSPERO International Prospective Register of Systematic Reviews No. 42014015464. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Balazs, G. C., Brelin, A. M., Grimm, P. D., Dickens, J. F., Keblish, D. J., Rue, J.-P. H. Tags: Knee ligaments, general, Knee ligaments, ACL Current Concepts Source Type: research

Sport-Specific Yearly Risk and Incidence of Anterior Cruciate Ligament Tears in High School Athletes: A Systematic Review and Meta-analysis
Conclusion: There is an approximately 1.6-fold greater rate of ACL tears per athletic exposure in HS female athletes than males. However, there is significant risk in both sexes, particularly in high-risk sports such as soccer, football, basketball, and lacrosse. Knowledge of sport-specific risk is essential for future injury reduction programs, parent-athlete decision making, and accurate physician counseling. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Gornitzky, A. L., Lott, A., Yellin, J. L., Fabricant, P. D., Lawrence, J. T., Ganley, T. J. Tags: Knee ligaments, ACL Current Concepts Source Type: research

Initiation Timing of Low-Intensity Pulsed Ultrasound Stimulation for Tendon-Bone Healing in a Rabbit Model
Conclusion: LIPUS started at postoperative day 7 had a more prominent effect on T-B healing compared with the other treatment regimens in this study. Clinical Relevance: The findings of the study may help optimize the initiation timing of LIPUS for T-B healing. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Lu, H., Chen, C., Qu, J., Chen, H., Chen, Y., Zheng, C., Wang, Z., Xu, D., Zhou, J., Zhang, T., Qin, L., Hu, J. Tags: Biology and Translational Research Source Type: research

Functional Recovery in Osteoarthritic Chondrocytes Through Hyaluronic Acid and Platelet-Rich Plasma-Inhibited Infrapatellar Fat Pad Adipocytes
Conclusion: IFP adipocyte–derived releasates mediated inflammatory response dedifferentiation in chondrocytes, which was recovered through HA+PRP administration. Clinical Relevance: Our findings demonstrated that HA+PRP effectively diminished IFP adipocyte–promoted inflammation in articular chondrocytes, indicating that the IFP could be a potential therapeutic target for OA therapy. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Chen, W.-H., Lin, C.-M., Huang, C.-F., Hsu, W.-C., Lee, C.-H., Ou, K.-L., Dubey, N. K., Deng, W.-P. Tags: Growth factors/Healing enhancement, Knee, articular cartilage Biology and Translational Research Source Type: research

The Orientation and Variation of the Acromioclavicular Ligament: An Anatomic Study
Conclusion: The AC ligament could be separated into the SP bundle and the AI bundle. The SP bundle ran posteriorly toward the distal clavicle from the acromion at an average angle of 30° to the joint surface. Clinical Relevance: Anatomic reconstruction, based on the current findings in combination with findings regarding the coracoclavicular ligament, could facilitate improved outcome in the treatment of AC joint disruption. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Nakazawa, M., Nimura, A., Mochizuki, T., Koizumi, M., Sato, T., Akita, K. Tags: Anatomy, Shoulder, general Source Type: research

Medialized Clavicular Bone Tunnel Position Predicts Failure After Anatomic Coracoclavicular Ligament Reconstruction in Young, Active Male Patients
Conclusion: The optimal technique for treating acromioclavicular separations has yet to be determined. Recently, anatomic coracoclavicular reconstruction has demonstrated biomechanical superiority to previously described methods. The findings of optimal tunnel positioning in anatomic reconstructions from this large active-duty military cohort can assist preoperative planning to reduce failure rates when treating these difficult injuries. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Eisenstein, E. D., Lanzi, J. T., Waterman, B. R., Bader, J. M., Pallis, M. P. Tags: General sports trauma, Imaging and radiology, general, Military training Shoulder Source Type: research

Shoulder Injuries in Mens Collegiate Lacrosse, 2004-2009
Conclusion: Shoulder injuries are common in NCAA men’s lacrosse and are an important source of lost playing time. Acromioclavicular injuries were the most frequent injury in this series, but labral and instability injuries were also common. In this increasingly popular contact sport, an understanding of the epidemiology and mechanism of shoulder injuries may be used to improve protective equipment and develop injury prevention. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Gardner, E. C., Chan, W. W., Sutton, K. M., Blaine, T. A. Tags: Shoulder, instability, Epidemiology, Injury prevention, Shoulder, glenoid labrum, Shoulder, general, Lacrosse Source Type: research

Epidemiology of Acromioclavicular Joint Sprains in 25 National Collegiate Athletic Association Sports: 2009-2010 to 2014-2015 Academic Years
Conclusion: The highest rates of AC joint sprains occurred in men’s football, ice hockey, and wrestling as well as women’s ice hockey. Most AC joint sprains across all sports occurred because of a contact mechanism, particularly from player-player contact. Further research into the specific activities and exposures at the time of injury may lend a better understanding of the causation of these injuries and lead to appropriate interventions to decrease their incidence and severity. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Hibberd, E. E., Kerr, Z. Y., Roos, K. G., Djoko, A., Dompier, T. P. Tags: Epidemiology Shoulder Source Type: research

Accuracy of Palpation-Guided Catheter Placement for Muscle Pressure Measurements in Suspected Deep Posterior Chronic Exertional Compartment Syndrome of the Lower Leg: A Magnetic Resonance Imaging Study
Conclusion: Palpation-guided placement of catheters for TP pressure measurements is suboptimal in more than half of the patients with suspected lower leg dp-CECS. Optimizing the pressure catheter tip positioning technique may improve diagnostic accuracy in dp-CECS. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Winkes, M. B., Tseng, C. M., Pasmans, H. L., van der Cruijsen-Raaijmakers, M., Hoogeveen, A. R., Scheltinga, M. R. Tags: Anatomy, Imaging, magnetic resonance, Muscle injuries Foot, Ankle, and Leg Source Type: research

Sports Activity After Reconstruction of Osteochondral Lesions of the Talus With Autologous Spongiosa Grafts and Autologous Matrix-Induced Chondrogenesis
Conclusion: Patients undergoing AMIC repair of an OCLT participate at a similar low postoperative sports and recreational activity level compared with the preoperative level. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Wiewiorski, M., Werner, L., Paul, J., Anderson, A. E., Barg, A., Valderrabano, V. Tags: Ankle, articular cartilage, Articular cartilage resurfacing Foot, Ankle, and Leg Source Type: research

Surgical Treatment of Chronic Exertional Compartment Syndrome in Pediatric Patients
Conclusion: CECS in pediatric patients most commonly occurs in adolescent females participating in running sports. Fasciotomy results in a 79.5% return-to-sports rate. Recurrence occurs in 18.8% of patients, more commonly in patients undergoing anterior and lateral release only. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Beck, J. J., Tepolt, F. A., Miller, P. E., Micheli, L. J., Kocher, M. S. Tags: Compartment syndromes, Pediatric sports medicine, Running Foot, Ankle, and Leg Source Type: research

Treatment of Articular Cartilage Defects With Microfracture and Autologous Matrix-Induced Chondrogenesis Leads to Extensive Subchondral Bone Cyst Formation in a Sheep Model
Conclusion: Microfracture technique caused bone cyst formation and induced severe pathology of the subchondral bone in a sheep model. Clinical Relevance: The potential of microfracture technique to induce subchondral bone pathology should be considered. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Beck, A., Murphy, D. J., Carey-Smith, R., Wood, D. J., Zheng, M. H. Tags: Knee, articular cartilage Source Type: research

Cortical Button Fixation: A Better Patellar Tendon Repair?
Conclusion: Patellar tendon repair using cortical button fixation demonstrated mechanical advantages over suture repair and anchor repair in cadaveric specimens. Cortical button fixation showed less cyclic gap formation and withstood at least twice the load to failure of the construct. Clinical Relevance: The biomechanical superiority of cortical button fixation may impart clinical advantages in accelerating postoperative rehabilitation. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Ode, G. E., Piasecki, D. P., Habet, N. A., Peindl, R. D. Tags: Biomechanics, ligament, Biomechanics, tendon, Knee, general, Knee, patella, Knee, patellar tendon Source Type: research

Treatment of Painful, Irreparable Partial Meniscal Defects With a Polyurethane Scaffold: Midterm Clinical Outcomes and Survival Analysis
Conclusion: A polyurethane meniscal implant can improve knee joint function and significantly reduce pain in patients with segmental meniscus deficiency up to 5 years after implantation. A stable cartilage status of the index compartment at 5-year follow-up was demonstrated in 46.7% of patients, calling into question the chondroprotective ability of the implant. In addition, a relatively high failure rate was noticed. Long-term and randomized controlled studies are mandatory to confirm the initial results and the reliability of this procedure. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - September 29, 2016 Category: Sports Medicine Authors: Dhollander, A., Verdonk, P., Verdonk, R. Tags: Tissue engineering, Knee, general, Knee, meniscus, Imaging, magnetic resonance Source Type: research