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.

Biomechanical Comparison of Surgical Techniques for Resection Arthroplasty of the Sternoclavicular Joint
Conclusion: Resection of the disc alone did not reliably decompress each SC joint. Resection of 5 mm of the medial end of the clavicle with the parallel resection technique reliably decompressed the SC joint better than with the oblique resection technique. Clinical Relevance: This study provides baseline data on SC joint resection techniques and their mechanical effects. This knowledge can be implemented in clinical practice to treat patients with symptomatic posttraumatic arthritis of the SC joint. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Katthagen, J. C., Marchetti, D. C., Dahl, K. D., Turnbull, T. L., Millett, P. J. Tags: Biomechanics, general, Shoulder, general Source Type: research

Site and Severity of the Increased Humeral Retroversion in Symptomatic Baseball Players: A 3-dimensional Computed Tomographic Analysis
Conclusion: Baseball players exhibited significant side-to-side differences in humeral retroversion at multiple sites throughout the humerus, including the proximal humerus near the epiphyseal plate and at the insertions of the internal rotator muscles, the middle of the humeral shaft, and the distal third of the humerus. Therefore, the increased humeral retroversion at multiple sites throughout the humerus needs to be considered when we perform physical examinations, provide treatment, or undertake biomechanical studies for any throwing-related injuries. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Itami, Y., Mihata, T., Shibano, K., Sugamoto, K., Neo, M. Tags: Imaging, computed tomography, Baseball/Softball, Shoulder, general Source Type: research

The Effects of Latarjet Reconstruction on Glenohumeral Kinematics in the Presence of Combined Bony Defects: A Cadaveric Model
Conclusion: These results demonstrate that some degree of translation can be regained for combined bony glenoid and humeral head defects with the Latarjet procedure. However, for humeral defects larger than 31%, the rotational effect of the humeral head defect led to persistent decreased translation and to dislocation despite glenoid augmentation. Thus, directly addressing the humeral defect to restore the articular surface should be considered in these cases. Clinical Relevance: This study provides a critical value limit for combined anterior glenoid bone loss and humeral head defects. While this is a biomechanical study...
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Patel, R. M., Walia, P., Gottschalk, L., Kuklis, M., Jones, M. H., Fening, S. D., Miniaci, A. Tags: Shoulder, instability, Biomechanics, bone, Shoulder, glenoid labrum Source Type: research

Outcomes of Lisfranc Injuries in the National Football League
Conclusion: More than 90% of NFL athletes who sustained Lisfranc injuries returned to play in the NFL at a median of 11.1 months from time of injury. Offensive and defensive players experienced a decrease in performance after return from injury that did not reach statistical significance compared with their respective control groups over a similar time period. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: McHale, K. J., Rozell, J. C., Milby, A. H., Carey, J. L., Sennett, B. J. Tags: Foot, General sports trauma, Football (American) Foot, Ankle, and Leg Source Type: research

Dynamic Hip Kinematics During the Golf Swing After Total Hip Arthroplasty
Conclusion: In this analysis, the golf swing did not produce excessive hip rotation or cup-head translation in any hips. However, liner-to-neck contact during the golf swing was observed in 36% of the hips, with unknown effects on the long-term results. Clinical Relevance: Golf is an admissible sport after THA because dynamic hip stability was observed. However, the implant position, especially cup anteversion and the use of elevated rim liners, promoted liner-to-neck contact. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Hara, D., Nakashima, Y., Hamai, S., Higaki, H., Ikebe, S., Shimoto, T., Yoshimoto, K., Iwamoto, Y. Tags: Biomechanics, bone, Hip replacement, Golf Hip and Thigh Source Type: research

The Contribution of Different Femur Segments to Overall Femoral Torsion
Conclusion: We established a difference between neck, mid, and distal femoral torsion with reproducible measurements. Our data suggest that all 3 levels of the femur contribute to the total femoral torsion, with a different pattern among patients with high torsion and patellar instability. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Seitlinger, G., Moroder, P., Scheurecker, G., Hofmann, S., Grelsamer, R. P. Tags: Anatomy, Hip/Pelvis/Thigh, Knee, general, Knee, patella, Imaging, magnetic resonance, Osteotomy Hip and Thigh Source Type: research

Hamstring and Quadriceps Isokinetic Strength Deficits Are Weak Risk Factors for Hamstring Strain Injuries: A 4-Year Cohort Study
Conclusion: This study identified small absolute strength differences and a wide overlap of the absolute strength measurements at the group level. The small associations between lower hamstring eccentric strength and lower quadriceps concentric strength with HSIs can only be considered as weak risk factors. The identification of these risk factors still does not allow the identification of individual players at risk. The use of isokinetic testing to determine the association between strength differences and HSIs is not supported. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: van Dyk, N., Bahr, R., Whiteley, R., Tol, J. L., Kumar, B. D., Hamilton, B., Farooq, A., Witvrouw, E. Tags: Injury prevention, Hip/Pelvis/Thigh, Muscle injuries, Football (Soccer) Hip and Thigh Source Type: research

Outcomes of Hip Arthroscopic Surgery in Patients With Tönnis Grade 1 Osteoarthritis With a Minimum 2-Year Follow-up: Evaluation Using a Matched-Pair Analysis With a Control Group With Tönnis Grade 0
Conclusion: At 2-year follow-up, patients with Tönnis grade 1 OA had improved outcomes after hip arthroscopic surgery, with no significant difference compared with a matched control group of patients with Tönnis grade 0 OA. However, further studies are underway to determine if the results of the Tönnis grade 1 cohort will deteriorate over longer term follow-up. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Chandrasekaran, S., Gui, C., Darwish, N., Lodhia, P., Suarez-Ahedo, C., Domb, B. G. Tags: Hip arthroscopy Hip and Thigh Source Type: research

The Economic Impact of Acetabular Labral Tears: A Cost-effectiveness Analysis Comparing Hip Arthroscopic Surgery and Structured Rehabilitation Alone in Patients Without Osteoarthritis
Conclusion: Hip arthroscopic surgery is more cost-effective and results in a considerably lower incidence of symptomatic OA than structured rehabilitation alone in treating symptomatic labral tears of patients in the second to seventh decades of life without pre-existing OA. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Lodhia, P., Gui, C., Chandrasekaran, S., Suarez-Ahedo, C., Dirschl, D. R., Domb, B. G. Tags: Economic and decision analysis, Hip/Pelvis/Thigh, Hip, femoroactabular impingement, Hip arthroscopy Hip and Thigh Source Type: research

Posterior Tibial Slope Angle Correlates With Peak Sagittal and Frontal Plane Knee Joint Loading During Robotic Simulations of Athletic Tasks
Conclusion: The investigation supported the theory that increased posterior tibial slope would lead to greater magnitude knee joint moments, specifically, internally generated knee adduction and flexion torques. Clinical Relevance: The knee torques that positively correlated with increased tibial slope angle in this investigation are associated with heightened risk of ACL injury. Therefore, the present data indicated that a higher posterior tibial slope is correlated to increased knee loads that are associated with heightened risk of ACL injury. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Bates, N. A., Nesbitt, R. J., Shearn, J. T., Myer, G. D., Hewett, T. E. Tags: Biomechanics, general, Injury prevention, Knee, general, Knee ligaments, ACL Source Type: research

Effects of Prophylactic Knee Bracing on Lower Limb Kinematics, Kinetics, and Energetics During Double-Leg Drop Landing at 2 Heights
Conclusion: The application of a prophylactic knee brace resulted in improvements in important biomechanical factors associated with the risk of ACL injuries. Clinical Relevance: Prophylactic knee braces may help reduce the risk of noncontact knee injuries in recreational and professional athletes while playing sports. Further studies should investigate different types of prophylactic knee braces in conjunction with existing training interventions so that the sports medicine community can better assess the effectiveness of prophylactic knee bracing. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Ewing, K. A., Begg, R. K., Galea, M. P., Lee, P. V. S. Tags: Knee ligaments, ACL Source Type: research

Does Lateral Meniscal Allograft Transplantation Using the Keyhole Technique Restore the Anatomic Location of the Native Lateral Meniscus?
Conclusion: When comparing the position of the horns preoperatively and postoperatively, both horns showed mean relative postoperative positional changes of <5% of relative values and <5 mm of absolute values in both the coronal and sagittal planes. The keyhole technique in lateral MAT can reconstruct the lateral meniscus close to its native anatomic position by avoiding displacement of >5 mm in both the coronal and sagittal planes. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Kim, N.-K., Bin, S.-I., Kim, J.-M., Lee, C.-R. Tags: Anatomy, Knee, meniscus, Allografts Source Type: research

Local Administration of Simvastatin Stimulates Healing of an Avascular Meniscus in a Rabbit Model of a Meniscal Defect
Conclusion: The local administration of simvastatin promotes the regeneration of an avascular meniscus in the rabbit model of a meniscal defect. The mechanism may involve the upregulation of BMPs and the subsequent upregulation of COL1 and COL2. Clinical Relevance: This study suggests that simvastatin stimulated intrinsic healing of an avascular meniscus. The local administration of simvastatin is safe and inexpensive and seems to be a promising treatment of meniscal injuries. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Zhang, S., Matsushita, T., Kuroda, R., Nishida, K., Matsuzaki, T., Matsumoto, T., Takayama, K., Nagai, K., Oka, S., Tabata, Y., Nagamune, K., Kurosaka, M. Tags: Cell/Molecular biology, Knee, meniscus, Biologic healing enhancement Source Type: research

Societal and Economic Effect of Meniscus Scaffold Procedures for Irreparable Meniscus Injuries
Conclusion: Results of the current health technology assessment emphasize that the monetary value of meniscus scaffold procedures is very much dependent on a number of influential variables. Therefore, before implementing the technology in the health care system, it is important to critically assess these variables in a relevant context. The models can be improved as additional clinical data regarding the efficacy of the meniscus scaffold become available. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Rongen, J. J., Govers, T. M., Buma, P., Grutters, J. P. C., Hannink, G. Tags: Economic and decision analysis, Knee, meniscus Source Type: research

Surgical Trends in the Treatment of Meniscal Tears: Analysis of Data From the American Board of Orthopaedic Surgery Certification Examination Database
Conclusion: This study provides insight into the current practice trends of recent orthopaedic training graduates in the treatment of meniscal tears. The results suggest that reported meniscal procedures have decreased overall among ABOS candidates but that meniscal repair cases have increased. The findings support the recent shift toward evidence-based medicine, with changing practice patterns that may reflect the dissemination of recent findings from large, high-quality research studies in this field. (Source: The American Journal of Sports Medicine)
Source: The American Journal of Sports Medicine - June 30, 2016 Category: Sports Medicine Authors: Parker, B. R., Hurwitz, S., Spang, J., Creighton, R., Kamath, G. Tags: Statistics, Knee ligaments, ACL, Knee, meniscus Source Type: research