Autologous Mesenchymal Stem Cell Injection for Osteoarthritic Knee Inflammation

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Solution Overview

Problem

Current treatments for osteoarthritis of the knee, such as hyaluronic acid injections and arthroscopic debridement, have shown no efficacy and lack a middle ground between non-operative treatments and surgical interventions like total knee replacement, leading to significant patient suffering and high healthcare costs.

Innovation Solution

Injecting autologous mesenchymal stem cells into the tibial metaphysis of the knee joint, obtained from bone marrow concentrate, to reduce inflammation and regenerate damaged bone tissue, thereby alleviating symptoms and potentially reversing hyperemic areas and bone cysts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If hyaluronic acid injections are administered to treat osteoarthritis, then the treatment option is provided, but the treatment shows no efficacy and accelerates cartilage degradation

Engineering Contradiction:

Improvetreatment option availabilityVSAvoidcartilage degradation acceleration

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes harmful substances (pro-inflammatory cytokines, damaged tissue debris) from the joint environment through aspiration and lavage, eliminating the source of cartilage degradation while providing a safe treatment option that does not accelerate degradation

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary substance (autologous bone marrow concentrate containing mesenchymal stem cells) that mediates the treatment effect by promoting cartilage regeneration and reducing inflammation, replacing the ineffective hyaluronic acid with a biologically active mediator that actively reverses pathology

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If total knee replacement is performed to treat severe osteoarthritis, then pain relief and functional improvement are achieved, but the surgical complexity, cost, and recovery time increase significantly

Engineering Contradiction:

Improvepain relief effectivenessVSAvoidsurgical intervention complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent performs preliminary regenerative action by injecting bone marrow concentrate before the joint reaches end-stage damage, attempting to reverse pathology and avoid the need for complex surgical intervention entirely, or at least delay it significantly

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent utilizes the patient's own bone marrow stem cells to perform self-repair of the cartilage damage, eliminating the need for external surgical replacement and allowing the body's natural regenerative mechanisms to restore joint function

Inventive Principle:

Principle #25Self-service

3Ease of operation

If arthroscopic debridement is performed to lavage the knee and remove frayed cartilage, then the procedure is simple and non-invasive, but the treatment accelerates cartilage degradation and shows no efficacy

Engineering Contradiction:

Improveprocedure simplicityVSAvoidcartilage degradation acceleration

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent converts the harmful act of debridement into a beneficial process by replacing mechanical removal of cartilage with biological regeneration. The same minimally invasive approach is used, but instead of removing tissue, stem cells are introduced to regenerate and protect existing cartilage, transforming the harmful debridement concept into a beneficial regenerative therapy

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 method effectively reduces inflammation and pain, improves functional ability, and may delay or avoid the need for surgical interventions by regenerating the tibial metaphysis towards a normal physiologic structure, as demonstrated by improvements in VAS and LEFS scores in clinical studies.

Implementation Method 1

placing the mesenchymal stem cells into the tibial metaphysis of a tibia; reducing the inflammation

Methodology Applied

Scientific EffectInflammation reduction:

Implementation Method 2

regenerating the tibial metaphysis toward a normal physiologic structure

Methodology Applied

Scientific EffectTissue regeneration:

Data Source

PatentUS9980984B2Treatment of inflammation of osteoarthritic knees with mesenchymal stem cells

Publication Date: 2018.05.29 PETTINE KENNETH ALLEN

AI summary

The present disclosure provides an inventive method of treating inflammation that is associated with osteoarthritis of the knee joint by injecting mesenchymal stem cells into the symptomatic knee. In one aspect, the mesenchymal stem cells are obtained autogenously. In another aspect, the mesenchymal stem cells are injected below the degenerated medial tibial plateau of the knee joint, resulting in reduction of the inflammation and alleviation of the symptoms of the osteoarthritis.