Periosteum Bone Repair Composition for Donor-Free Angiogenic Support
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Solution Overview
Problem
Existing bone graft materials face limitations such as donor site morbidity, limited supply, and inadequate angiogenic support for effective bone healing.
Innovation Solution
A bone repair composition comprising periosteum containing angiogenic growth factors, cancellous bone chips, and optionally demineralized bone matrix (DBM) chips, which promotes angiogenesis and supports osteoconductive, osteoinductive, and osteogenic activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autografts are used to provide physiologic properties for bone healing, then bone repair quality is improved, but donor site morbidity and limited supply occur
Solution Approach 1:
The invention extracts and isolates the beneficial components (osteogenic cells, growth factors, extracellular matrix) from autograft bone tissue and formulates them into a product that can be applied at the defect site without requiring a second harvest procedure, thereby eliminating donor site morbidity while preserving the physiologic properties needed for bone healing
Solution Approach 2:
The invention uses an extracellular matrix scaffold as an intermediary carrier that delivers isolated osteogenic cells and growth factors to the bone defect site, replacing the need for direct autograft transplantation and eliminating the need for donor site harvesting while maintaining bone repair quality
2Reliability
If existing bone graft materials are used, then bone defects can be treated, but angiogenic support is inadequate for effective bone healing
Solution Approach 1:
The invention changes the concentration parameter of angiogenic growth factors by isolating and concentrating them from bone tissue to levels that are significantly higher than what is found in standard allografts or xenografts, thereby providing sufficient angiogenic support to accompany osteogenic activity and enable effective bone healing
Solution Approach 2:
The invention creates a composite bone repair product that combines multiple essential components (osteogenic cells, angiogenic growth factors, extracellular matrix scaffold) into a single formulation, where the synergistic interaction between these components provides both osteogenesis and angiogenesis that are inadequate when using conventional single-component bone grafts
Data Source
AI summary
Provided herein is a bone repair composition that is composed of periosteum containing an angiogenic growth factor(s), cancellous bone chips containing viable osteogenic cells, and, optionally, demineralized bone matrix (DBM) chips. Also provided herein are articles of manufacture and methods of use thereof to treat bone defects.