Comparison of ACL Strain in the MCL-Deficient and MCL-Reconstructed Knee During Simulated Landing in a Cadaveric Model.

Background: Noncontact anterior cruciate ligament (ACL) injury after valgus landing has been reported and studied biomechanically. However, the role of the medial collateral ligament (MCL) in dissipating these forces has not been fully elucidated. Purpose/Hypothesis: The purpose of this study was to investigate the role that the MCL plays in ACL strain during simulated landing.

When do rotator cuff repairs fail? Serial ultrasound examination after arthroscopic repair of large and massive rotator cuff tears.

Background: Despite advances in arthroscopic repair of rotator cuff tears, recurrent tears after repair of large and massive tears remain a significant clinical problem. The primary objective of this study was to define the timing of structural failure of surgically repaired large and massive rotator cuff tears by serial imaging with ultrasound. The secondary objective of this study was to investigate the association between recurrent tears and clinical outcome after rotator cuff repair.

Single-bundle versus double-bundle posterior cruciate ligament reconstruction.

Purpose: The purpose of this report is to present a systematic review of the literature to compare knee kinematics and clinical outcomes after single-bundle versus double-bundle posterior cruciate ligament reconstruction.

Methods: Systematic review of the literature by PubMed search, reference review, and search of Arthroscopy identified the relevant biomechanical and clinical studies. The studies were critically evaluated to determine potential advantages of single-bundle or double-bundle reconstructions in anteroposterior stability, graft tension, rotational stability, and functional outcome.

The use of locked plating in skeletally immature patients.

The philosophy and techniques for the management of fractures in the pediatric patient have changed over the past several decades. The immature skeleton has unique properties, and injuries in children have different characteristics, management options, and complications than do similar injuries in adults. The basic surgical techniques used in the management of pediatric fractures include closed reduction and casting, closed or open reduction with internal fixation, and external fixation.