Related Experiment Video
Updated: May 7, 2025

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
Published on: May 18, 2015
Management Principles of Civilian Ballistic Orthopaedic Trauma
Abstract:
Gun-related violence is becoming increasingly more common in the United States, and ballistic injuries pose a challenge to the orthopaedic surgeon on trauma call. The guiding principles of trauma care are almost exclusively based on blunt trauma, and the management principles do not always translate. Ballistic long bone fractures, particularly of the lower extremity, can often be managed with similar principles, although the injury pattern can make restoration of anatomic alignment a challenge. Some data suggest that patients with ballistic arthrotomies can be safely treated with medical management and antibiotic therapy alone; however, gross contamination can be encountered, and this decision is at the surgeon's discretion. Retained ballistic fragments may result in intra-articular changes and elevated lead levels over time, warranting consideration for surgical excision. Ballistic injuries to the hand and wrist are often present with concomitant soft-tissue injury, including nerve and tendon injuries. Providing stable bony fixation while also facilitating early motion for rehabilitation is a difficult balance to reach. In addition, the management of ballistic nerve injuries is controversial, as many injuries are not simply neurapraxic, and either early exploration or evaluation with ultrasonographic imaging may help detect injuries for which repair or grafting can be considered. Last, ballistic trauma can have mental health implications for patients and families and even contribute to the burnout epidemic demonstrated in health care professionals.
Related Concept Videos
Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
Flail Chest-II
Assessment:
1. Clinical Evaluation:
History:
Impact: Problem Solving
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...

