Medicine and Health Sciences Commons^™

Understanding Radiocarpal Rotation Through In Vivo Pronation And Supination Of The Hand: A Single Case Study, Jorge L. Orbay, Joshua M. Romero, Neal Wostbrock, Deana M. Mercer

UNM Orthopaedic Research Journal

Background: Studies have not clearly defined the motion of the distal radius in relation to the carpus in vivo. We hypothesized that 1) with the hand fixed by grasping a handle to prevent hand and wrist motion, the resulting load in torsion generated by extrinsic muscle in vivo would create motion at the radiocarpal joint; and 2) the motion measured will be between the distal radius and the proximal row of the carpus.

Methods: The data was acquired from the senior author external to our institution; in the current study, we quantify the resulting radiocarpal motion. A K-wire was placed …

Automated Device To Enable Passive Pronation And Supination Activities Of The Hand For Experimental Testing With Cadaveric Specimens: A Collaboration Between The University Of New Mexico And New Mexico Institute Of Mining And Technology, Jodie Gomez, Jakub Mroczkowski, Lauren Long, Christopher A. Buksa, Deana M. Mercer, Christina Salas, David I. Grow

UNM Orthopaedic Research Journal

In cadaveric research, reproducing physiological conditions under which the specimens would be loaded in vivo is essential to achieve clinical applicability. This is a collaborative study bringing together engineers from The University of New Mexico and New Mexico Institute of Mining and Technology. We describe development of an automated device to enable passive pronation and supination of the hand (rotation achieved through direct manipulation) for use in cadaveric experimental testing of the hand, wrist, forearm, or elbow. We present a brief motivation for development of this device, design details, an overview of one possible application, and ways to use this …