PDGF Biocompatible Matrix for Spine Fusion
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Solution Overview
Problem
Current bone graft harvesting methods for spine fusion procedures are associated with post-operative pain, increased risk of infection, donor site morbidity, and the need for additional surgical sites, limiting the effectiveness and convenience of bone fusion treatments.
Innovation Solution
A composition comprising a solution of platelet-derived growth factor (PDGF) in a biocompatible matrix, specifically a bone scaffolding material and a biocompatible binder, is used to enhance bone fusion by providing a localized osteoinductive and osteoconductive agent that can be easily applied during spine fusion procedures, eliminating the need for autograft harvesting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autograft harvesting is performed to provide osteoinductive graft material, then bone fusion is enhanced, but post-operative pain and donor site morbidity increase
Solution Approach 1:
The patent extracts the essential osteoinductive properties from autograft by using PDGF protein, which can be obtained without harvesting bone. This allows the bone fusion function to be maintained while eliminating the harmful donor site morbidity and pain associated with autograft harvesting.
Solution Approach 2:
The patent creates a functional copy of autograft's osteoinductive activity using recombinant PDGF protein. This copy provides the same bone formation stimulation without requiring actual bone harvest, thereby avoiding donor site complications while maintaining fusion reliability.
2Reliability
If autograft harvesting is performed to provide osteoinductive graft material, then bone fusion is enhanced, but the risk of infection increases
Solution Approach 1:
The patent separates the osteoinductive function from the bone harvest procedure by using PDGF protein. This extraction eliminates the infection risk associated with creating a donor site while preserving the bone fusion enhancement through the growth factor's biological activity.
Solution Approach 2:
The patent uses a protein-based copy of the osteoinductive function rather than actual bone tissue. This molecular copy provides the same therapeutic effect without the infection pathway inherent in harvesting and processing autograft material.
3Reliability
If traditional bone graft methods are used, then bone fusion is achieved, but the complexity of surgical procedures increases
Solution Approach 1:
The patent extracts the essential osteoinductive function from the complex autograft harvesting and processing workflow. By using a ready-to-use PDGF protein formulation, the surgical procedure is simplified to a single application step while maintaining bone fusion reliability.
Solution Approach 2:
The patent replaces the complex biological process of autograft harvesting, processing, and sterilization with a simplified application of recombinant PDGF protein. This copy approach maintains the therapeutic function while dramatically reducing surgical complexity and procedure time.
4Quantity of substance
If autograft harvesting is performed, then osteoinductive graft material is obtained, but donor site morbidity occurs
Solution Approach 1:
The patent extracts the osteoinductive activity from the bone matrix by using purified PDGF protein. This allows obtaining the necessary graft material function without performing the harmful donor site harvest, thereby eliminating donor site morbidity while preserving graft material effectiveness.
Solution Approach 2:
The patent creates a protein-based copy of the osteoinductive graft material that can be produced without donor site morbidity. This recombinant PDGF provides the same bone formation stimulation as autograft without requiring bone harvest, thus eliminating the harmful donor site effects.
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 PDGF solution in a biocompatible matrix promotes bone fusion by increasing bone density and accelerating bone formation, reducing the need for autograft harvesting and minimizing complications associated with traditional bone graft methods, while maintaining the effectiveness of spine fusion procedures.
Implementation Method 1
providing a localized osteoinductive and osteoconductive agent that can be easily applied during spine fusion procedures
Implementation Method 2
providing a localized osteoinductive and osteoconductive agent that can be easily applied during spine fusion procedures
Data Source
AI summary
The present disclosure provides improved compositions comprising a solution of a platelet-derived growth factor and a biocompatible matrix that are useful for bone fusion procedures, such as spine fusion procedures. The compositions advantageously comprise a the PDGF solution and biocompatible matrix in about a 2:1 volume to weight (mL:g) ratio such that the compositions can be readily applied to a site of bone fusion using a syringe or cannula. In particular embodiments, the composition is useful in conjunction with a spine fusion cage in a spine fusion procedure. The present disclosure also provides methods of performing fusion procedures, such as spine fusion, and kits for fusion procedures.