Dynamic Joint Arthroplasty Implant Preserving Mobility
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Solution Overview
Problem
Current surgical implant systems for joint arthroplasty, such as those used in treating the subtalar joint, often result in permanent fixation of bones, leading to pain and discomfort due to the loss of joint movement, and lack effective solutions for addressing inflammatory arthritis and eccentric forces that erode the joint.
Innovation Solution
The development of implant systems comprising a first and second implant component with specific structural features, including protuberances and passageways, and an insert with articulating surfaces, allowing for adjustable attachment and movement to preserve joint functionality while withstanding forces during activities like walking or running.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If arthrodesis is performed to treat subtalar joint afflictions, then the joint is stabilized and pain is reduced, but joint movement is permanently eliminated leading to discomfort and potential subsequent procedures
Solution Approach 1:
The implant system employs a dynamic design where the insert can be attached or detached from the second implant component, allowing the joint to transition between mobile and stabilized states. This enables the joint to maintain movement capability when needed while providing stabilization support when required, resolving the contradiction between joint stability and mobility.
Solution Approach 2:
The implant system is divided into separate components (first implant component, second implant component, and insert) that can function independently or in combination. This segmentation allows the joint to operate in different configurations - with the insert providing movement preservation or without it providing stabilization, thus addressing both joint mobility and stabilization needs.
2Reliability
If traditional implant systems are used, then joint fixation is achieved, but the system cannot adapt to different joint conditions and activities
Solution Approach 1:
The implant system transitions from static fixation to dynamic adaptability through the removable insert mechanism. The system can adapt its degree of fixation based on patient needs, activity level, and joint condition, providing full mobility when the insert is detached and stable fixation when attached, thereby achieving both reliability and adaptability.
Solution Approach 2:
The implant system is designed to perform multiple functions - it can provide joint fixation, preserve joint movement, and allow for future surgical interventions. The universal design accommodates different clinical scenarios and patient requirements, making the system versatile enough to address various joint conditions and activity levels.
3Stability of the object's composition
If permanent fixation is implemented, then joint stability is improved, but the system becomes irreversible and requires additional procedures if issues arise
Solution Approach 1:
By segmenting the implant into separable components, the system enables reversible fixation. The insert can be removed from the second implant component without damaging the bone or other implant parts, allowing for easy revision or adjustment if clinical issues arise, thus maintaining both joint stability and surgical reversibility.
Solution Approach 2:
The design allows for the recovery and reuse of implant components. If the insert becomes problematic, it can be removed and replaced while retaining the main implant components, reducing the need for complete implant removal or additional extensive procedures, thereby improving ease of repair and reducing surgical burden.
Data Source
AI summary
Surgical implant systems, methods, and components are described herein. More particularly, the disclosure relates to joint arthroplasty systems, methods, and components. Particular embodiments described herein can be used to modify the subtalar joint (e.g., posterior facet of the subtalar joint), calcaneocuboid, talonavicular, and any other suitable joint. An exemplary implant system comprises a first implant component, a second implant component, and an insert.