Distal Radius Plating System with Radial Longitudinal Portion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current stabilization methods for distal radius fractures, such as casting, external fixation, and pinning/wiring, lack precision and consistency, particularly for complex fractures, and may cause flexor tendon irritation due to hardware placement near sensitive areas.
Innovation Solution
A distal radius plating system comprising a volar plate body and a radial longitudinal portion with strategically placed apertures for fixation fasteners and stabilization wires, designed to stabilize bone fragments while minimizing interference with flexor tendons, using a volar incision for precise radial longitudinal fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pinning or wiring techniques are used for stabilization, then invasive fixation can be achieved, but precision and consistency are insufficient for complex fractures
Solution Approach 1:
The plate is segmented into multiple functional regions including a volar body for general stabilization, a radial longitudinal portion for radial column support, and a volar head portion for distal fragment control. Each segment has specifically positioned apertures that allow precise targeting of different fracture patterns and bone fragments, enabling consistent alignment across complex fractures
Solution Approach 2:
Different regions of the plate have different aperture configurations and geometries optimized for specific functions. The volar head portion has apertures oriented for distal fragment control, the radial longitudinal portion has apertures for radial column fixation, and the volar body has apertures for proximal stabilization. This local differentiation enables precise control over fracture alignment in each region
2Reliability
If hardware is placed near sensitive areas for stabilization, then fixation can be achieved, but flexor tendon irritation occurs
Solution Approach 1:
The radial longitudinal portion is extracted as a separate component that extends radially away from the volar plate body, positioning the hardware away from the flexor tendon compartment. This spatial separation allows stable fixation of radial column fractures while minimizing interference with flexor tendons that run in the volar aspect of the wrist
Solution Approach 2:
The plate transitions from a purely volar configuration to a three-dimensional structure with radial longitudinal extension. This adds a radial dimension to the fixation, allowing screws to be placed in the radial column away from the flexor tendon sheath while still providing volar stabilization through the plate body
3Reliability
If traditional plating methods are used, then stabilization can be achieved, but the number of screws and hardware usage is excessive
Solution Approach 1:
The single plate design performs multiple functions that would traditionally require separate implants. The volar body provides proximal stabilization, the radial longitudinal portion provides radial column support, and the volar head portion provides distal fragment control. This multi-functionality reduces the total number of hardware components needed while maintaining comprehensive fracture stabilization
Solution Approach 2:
The plate combines volar plating and radial column fixation into a single integrated construct. The connection between the volar plate body and radial longitudinal portion creates a unified stabilization system that eliminates the need for separate volar plates and radial styloid screws, reducing hardware usage while providing equivalent or superior stabilization
Data Source
AI summary
Systems and methods are described for treating distal radius fractures using a plating system. In an aspect, a distal radius plating system includes a volar plate body for interfacing with a volar side of a distal portion of a radius bone. The volar plate body has a volar head portion extending from the volar plate body and terminating at a distal edge, the volar head portion including a first set of apertures to receive fixation fasteners therethrough to fix to the radius bone. The distal radius plating system also includes a radial longitudinal portion extending from a radial edge of the volar plate body to interface with the radial styloid of the radius bone while the volar plate body is positioned on the volar side of the distal portion of the radius bone.