Fracture Plating Systems for Percutaneous Rib Stabilization
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Solution Overview
Problem
Conventional methods for treating rib fractures, particularly in regions like the ribs, face challenges due to anatomical complexity and constant mechanical forces, leading to inadequate stabilization and prolonged recovery times, with existing percutaneous fixation systems often failing to securely align and fix bone segments.
Innovation Solution
A fracture plating system featuring a plate with slots, fasteners, and tethers that span fractures, allowing secure attachment and stabilization through a VATS portal, enabling precise alignment and fixation of bone segments, including multiple fractures and flail segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If percutaneous fixation techniques are used to reduce surgical trauma, then recovery time is shortened, but the ability to securely stabilize bone segments is limited
Solution Approach 1:
The fixation system is divided into modular components: a plate with multiple slots, individual fasteners with tethers, and separate bone anchorages. This segmentation allows percutaneous insertion of each component while maintaining overall structural integrity and stabilization capability.
Solution Approach 2:
The fastener is designed with a nested structure where the tether is inserted through the bone, the fastener engages the plate slot, and the tether is secured within the fastener body. This nested configuration enables secure fixation while maintaining a compact percutaneous profile.
2Reliability
If traditional open surgical approaches are used to achieve stable fixation, then stabilization reliability is improved, but surgical trauma and morbidity increase
Solution Approach 1:
The plate with slots acts as an intermediary element that bridges the fractured bone segments. The tethers serve as intermediaries that transmit fixation forces through the soft tissue plane, enabling stable fixation without direct open surgical exposure of the fracture site.
Solution Approach 2:
The system replaces the traditional mechanical open reduction and internal fixation (ORIF) approach with a percutaneous tensioning system. The tethers apply controlled mechanical forces to reduce and maintain fracture alignment, substituting the need for direct mechanical manipulation through open incisions.
3Object-affected harmful factors
If existing percutaneous fixation systems are used to minimize incision size, then tissue damage is reduced, but adaptability to complex fracture patterns is limited
Solution Approach 1:
The plate design incorporates multiple slots that can accommodate various fastener configurations, making the system universal for different fracture patterns including rib fractures, flail chest, and complex thoracic injuries. The same basic system adapts to multiple clinical scenarios.
Solution Approach 2:
The system allows dynamic adjustment of fastener positions within the plate slots and enables modification of tether tensioning to adapt to different fracture geometries and mechanical requirements, providing versatility without requiring multiple specialized devices.
Data Source
AI summary
A fracture plating system may be configured to stabilize a fracture of a bone, the bone may include an interior surface facing toward an interior cavity, and an exterior surface facing away from the interior cavity. The fracture plating system may include a plate having a slot having a width and a first threaded portion, wherein the plate may be configured to span the fracture, and a fastener having a head and a second threaded portion, wherein the fastener may be configured to be received in the slot and secure the plate to the interior surface. The width and the head may be sized to prevent the head from passing through the slot, and the first threaded portion may be configured to threadably engage the second threaded portion to allow the second threaded portion to pass through the first threaded portion resulting in the fastener being captive in the slot.