The menisci are not shock absorbers: A biomechanical and comparative perspective.

The lateral and medial menisci are fibrocartilaginous structures in the knee that play a crucial role in normal knee biomechanics. However, one commonly cited role of the menisci is that they function as "shock absorbers." Here we provide a critique of this notion, drawing upon a review of comparative anatomical and biomechanical data from humans and other tetrapods.

Cadaveric Study of the Safety and Device Functionality of Magnetically Controlled Growing Rods After Exposure to Magnetic Resonance Imaging.

Study Design: Cadaveric study.

Objective: To establish the safety and efficacy of magnetically controlled growing rods (MCGRs) after magnetic resonance imaging (MRI) exposure.

Summary Of Background Data: MCGRs are new and promising devices for the treatment of early-onset scoliosis (EOS).

Triggered EMG Potentials in Determining Neuroanatomical Safe Zone for Transpsoas Lumbar Approach: Are They Reliable?

Study Design: In vivo analysis in swine model.

Objective: The purpose of this study was to determine the accuracy of triggered EMG (t-EMG) and its reliability in lateral lumbar interbody fusions surgery. We also aim to document changes in psoas muscle produced during the approach.

Are We Underestimating the Significance of Pedicle Screw Misplacement?

Study Design: A retrospective review of charts, x-rays (XRs) and computed tomography (CT) scans was performed.

Objective: To evaluate the accuracy of pedicle screw placement using a novel classification system to determine potentially significant screw misplacement.

Summary Of Background Data: The accuracy rate of pedicle screw (PS) placement varies from 85% to 95% in the literature.

CT-Based Anatomical Evaluation of Pre-Vertebral Structures With Respect to Vertebral Body Using a Clock-Face Analogy.

Study Design: Retrospective Chart and CT Scan Review.

Objective: To define the relationship of the pre-vertebral structures for each level to assist in easier intraoperative visualization.

Summary Of Background Data: Vascular and visceral injuries from pedicle screws are well-known.