Fracture Plating With Tether-Guided VATS 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 bone fixation systems often failing to securely stabilize bone segments.
Innovation Solution
A fracture plating system featuring a plate with slots, fasteners, and tethers that span fractures, allowing for secure attachment and stabilization through a VATS portal, enabling reduction and stabilization of multiple fractures with adjustable fasteners and tethers for improved adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If percutaneous fixation techniques are used to reduce surgical trauma, then recovery time is shortened and complication rates are lowered, but the ability to securely stabilize bone segments is limited
Solution Approach 1:
The plate incorporates movable fasteners that can transition between locked and unlocked positions, allowing dynamic adjustment during surgery. The fasteners can be initially positioned loosely during insertion via the VATS portal, then locked into place to provide rigid stabilization once proper positioning is achieved.
Solution Approach 2:
The fixation system divides the stabilization function into separate components: the plate provides structural support, multiple fasteners provide localized attachment points, and tethers provide additional stabilization. This segmentation allows each component to be optimized independently while working together to achieve secure stabilization through minimal access.
2Reliability
If traditional open surgical approaches are used to achieve stable fixation, then stabilization security is improved, but surgical trauma increases and recovery time is prolonged
Solution Approach 1:
The plate acts as an intermediary device that bridges the fractured bone segments, providing stable fixation without requiring direct exposure of the fracture site. The system is inserted through a VATS portal, using the pleural space as an intermediary pathway to reach the rib from the interior surface, avoiding large external incisions and muscle displacement.
Solution Approach 2:
Instead of approaching the rib fracture from the exterior surface through large incisions, the system is inserted from the interior surface of the rib by reaching through the pleural space via VATS portal. This inverted approach allows plate placement on the inner surface of the rib, stabilizing fractures with minimal external surgical trauma.
3Device complexity
If conventional fixation systems are used to treat complex fracture patterns, then device simplicity is maintained, but adaptability to complex fracture patterns is reduced
Solution Approach 1:
The plate design incorporates multiple slots that can accommodate different fastener types and configurations, allowing the same plate to adapt to various fracture patterns and anatomical locations. The fasteners can be positioned at different locations along the plate and locked into place, providing universal applicability across different rib fracture scenarios without requiring multiple specialized devices.
Data Source
AI summary
A fracture plating system may be configured to stabilize a first fracture of a bone of a patient, the bone may include an interior surface facing toward an interior body cavity of the patient, and an exterior surface facing away from the interior body cavity. The fracture plating system may include a plate having one or more slots and configured to span the first fracture, a first fastener configured to be received in one of the one or more slots and secure the plate to the interior surface, a second fastener configured to be received in one of the one or more slots and secure the plate to the interior surface, and a first tether configured to apply a force directly to the first and second fasteners to guide the plate, the first and second fasteners through the interior body cavity to the interior surface of the bone.