Muscle-Driven Total Knee Replacement Stability with Virtual Ligaments.

Knee joint stability comprises passive (ligaments), active (muscles), and static (articular congruency) contributors. The stability of total knee replacement (TKR) implants can be assessed pre-clinically using joint motion simulators. However, contemporary testing methods with these platforms do not accurately reproduce the biomechanical contributions of passive stabilizers, active stabilizers, or both.

Cardiovascular Magnetic Resonance Imaging Traits Associated with Adverse Right Ventricular Remodeling in Repaired Tetralogy of Fallot.

Background: Deterioration of right ventricular (RV) function in repaired tetralogy of Fallot (rToF) is poorly understood. Cardiovascular magnetic resonance (CMR) is used for monitoring, but its analysis is user-dependent and time-consuming. We sought to automate the analysis of CMR using machine learning, and to identify imaging traits associated with adverse RV remodeling in the natural history of rToF.

Protons versus Photons Postmastectomy Radiation Therapy Effects on Breast Reconstruction Outcomes and Dosimetry Analysis.

Purpose: To compare the impact of proton versus photon postmastectomy radiation therapy (PMRT) on implant-related complications.

Methods And Materials: The records of patients with breast cancer treated with mastectomy and expander and/or implant reconstruction followed by PMRT at our institution between 2011 and 2022 were reviewed. Patients were divided into 2 groups by treatment modality: proton and photon groups.

ACR Appropriateness Criteria® Penetrating Torso Trauma.

This document assesses the appropriateness of various imaging studies for acute penetrating trauma to the torso. Penetrating trauma most commonly occurs from gunshots and stabbings, although any object can impale the patient. Anatomic location, type of penetrating trauma, and hemodynamic status are among the many important factors when deciding upon if, what, and when imaging is needed to further evaluate the patient.