Direct Bone Hinge Compression for Osteotomy Stability
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Solution Overview
Problem
Existing osteotomy surgeries rely on bone hinges for stability, but these hinges are prone to tiny fractures, compromising the surgery's success, especially in repeat joint replacements, as they apply indirect compression using external devices like plates and fixings.
Innovation Solution
A method and device for directly compressing the bone hinge using an implant that traverses through it, applying a compressive force to stabilize the hinge and enhance healing, and a surgical device to guide the implant's insertion across the bone hinge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If indirect compression using external devices like plates and fixings is used, then the bone hinge is stabilized, but the device complexity increases and the compression effectiveness is reduced
Solution Approach 1:
The invention extracts the compression function from the complex external plate and fixing system, concentrating it into a single implant that traverses the bone hinge. This removes the unnecessary external components while retaining the essential stabilization function.
Solution Approach 2:
The implant combines multiple functions (compression, stabilization, and structural support) into a single integrated component that traverses the bone hinge, replacing the separate external plate and fixing devices.
2Reliability
If indirect compression using external devices is used, then the bone hinge is stabilized, but the healing acceleration is reduced
Solution Approach 1:
The implant is inserted in advance to establish direct compression on the bone hinge before the healing process begins. This preliminary positioning ensures optimal compression force is applied from the start, accelerating the healing timeline.
3Force
If direct compression using an implant traversing the bone hinge is used, then the compression effectiveness and healing acceleration are improved, but the insertion complexity increases
Solution Approach 1:
The guide device acts as an intermediary tool that simplifies the insertion of the implant. It provides a predetermined path and positioning mechanism, making the complex insertion procedure more manageable and accurate.
4Duration of action of moving object
If direct compression using an implant traversing the bone hinge is used, then the healing is accelerated, but the need for additional external fixings increases
Solution Approach 1:
The invention removes the need for external fixing devices by extracting their stabilization function and incorporating it directly into the implant that traverses the bone hinge. The implant itself provides the necessary stability without requiring external support.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The direct compression of the bone hinge stabilizes the osteotomy, improving surgical outcomes and accelerating healing, reducing the need for repeat joint replacements.
Implementation Method 1
applying a compressive force between the first end and the second end across the bone hinge
Data Source
AI summary
The present invention provides a method for compressing a bone hinge created during surgery to re-align a bone in a subject. The invention further provides a device suitable for use in the method and a surgical package comprising the device.