Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Sports 15 articles

Articles

Surgical Technique: Aperture Fixation in PCL Reconstruction: Applying Biomechanics to Surgery

Thomas J. Gill MD, Samuel K. Velde MD, Kaitlin M. Carroll BS, William J. Robertson MD, Benton E. Heyworth MD

Biomechanical studies suggest reducing the effective graft length during transtibial posterior cruciate ligament (PCL) reconstruction by augmenting the distal tibial fixation with a proximal screw near the tibial tunnel aperture could increase graft stiffness and provide a more stable reconstruction. However, it remains unknown to what extent this mechanical theory influences in vivo graft performance over time.

Evaluation and Imaging of an Untreated Grade III Hamstring Tear: A Case Report

Brett B. Clark PT, David Jaffe MD, R. Frank Henn MD, Richard M. Lovering PhD, PT

Muscle strains are one of the most common complaints treated by physicians. High-force lengthening contractions can produce very high forces resulting in pain and tissue damage; such strains are the most common cause of muscle injuries. The hamstring muscles are particularly susceptible as they cross two joints and regularly perform lengthening contractions during running. We describe a patient with return to full function after a large hamstring tear.

Frictional Properties of the Meniscus Improve After Scaffold-augmented Repair of Partial Meniscectomy: A Pilot Study

Natalie K. Galley MS, Jason P. Gleghorn PhD, Scott Rodeo MD, Russell F. Warren MD, Suzanne A. Maher PhD, Lawrence J. Bonassar PhD

To prevent further degeneration, it is desirable to fill a meniscal defect with a supportive scaffold that mimics the mechanics of native tissue. Degradable porous scaffolds have been used, but it is unclear whether the tissue that fills the site of implantation is mechanically adequate, particularly with respect to frictional performance.

What Is the Best Femoral Fixation of Hamstring Autografts in Anterior Cruciate Ligament Reconstruction?: A Meta-analysis

Alexis Colvin MD, Charu Sharma MD, Michael Parides PhD, Jonathan Glashow MD

Several methods are available for fixing the femoral side of a hamstring autograft in ACL reconstruction and the best method is unclear. Biomechanical studies have shown varying results with regard to fixation failure.

Case Report: Quantitative MRI of Tibial Tubercle Transfer During Active Quadriceps Contraction

Kyle Duchman BA, Chloe Mellecker BS, Ahmad Y. El-Hattab BS, John P. Albright MD

The evaluation of distal transfer procedures relies primarily on qualitative clinical findings. Although quantitative MRI measurements provide an objective supplement to qualitative clinical findings, an association between qualitative clinical findings and quantitative patellofemoral indices has yet to be established.