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Updated: May 12, 2026
07:51
Synovial Fluid Analysis to Identify Osteoarthritis
Published on: October 20, 2022
[Changes in synovial fluid in different knee-joint diseases].
P Martínez de Albornoz Torrente1, F Forriol
1Servicio de Cirugía Ortopédica y Traumatología, Hospital de Torrejón, Madrid, España.
Revista Espanola De Cirugia Ortopedica Y Traumatologia
|April 19, 2013
Summary
Synovial fluid analysis reveals distinct biochemical profiles in knee injuries. Anterior cruciate ligament (ACL) injuries show an anabolic and inflammatory environment, while chondral and meniscal diseases exhibit a catabolic state.
Area of Science:
- Orthopedics and Sports Medicine
- Biochemistry
- Rheumatology
Context:
- Knee joint diseases, including meniscus disease, anterior cruciate ligament (ACL) injuries, and isolated chondral injuries, significantly impact joint health.
- Synovial fluid (SF) composition reflects the local joint environment and disease state.
Purpose:
- To analyze changes in synovial fluid (SF) composition in common knee joint diseases.
- To establish relationships between SF concentrations and specific pathologies.
Summary:
- Analyzed 62 SF samples from knees with meniscus disease (32), ACL injuries (17), and chondral injury (13).
- Measured cytokines (IL-1, IL-2, IL-6, IL-10, TNF-α) and growth factors (IGF-1, TGF-β).
- ACL injuries exhibited an anabolic/inflammatory SF environment with elevated IL-1, IL-6, TGF-β, IL-10, and decreased TNF-α.
- Chondral and meniscal diseases showed a catabolic SF environment with increased TNF-α and decreased TGF-β, most pronounced in isolated chondral injury.
Impact:
- Demonstrates that SF composition varies significantly based on knee pathology.
- Highlights the role of SF biochemical changes, beyond biomechanics, in affecting joint homeostasis.
- Provides insights into the distinct molecular environments of different knee injuries for potential therapeutic targets.
Related Concept Videos
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A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...
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During development, the limbs...
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01:20Structural Classification of Joints
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01:09Functional Classification of Joints
Functional Classification of Joints
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Synarthrosis
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The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
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