Degeneration alters the biomechanical properties and structural composition of lateral human menisci.
Osteoarthritis Cartilage
; 28(11): 1482-1491, 2020 11.
Article
en En
| MEDLINE
| ID: mdl-32739340
ABSTRACT
OBJECTIVE:
Because the literature relating to the influence of degeneration on the viscoelasticity and tissue composition of human lateral menisci remains contradictory or completely lacking, the aim of this study was to fill these gaps by comprehensively characterising the biomechanical properties of menisci with regard to the degree of degeneration.DESIGN:
Meniscal tissue from 24 patients undergoing a total knee replacement was collected and the degeneration of each region classified according to Pauli et al. For biomechanical characterisation, compression and tensile tests were performed. Additionally, the water content was determined and infrared (IR) spectroscopy was applied to detect changes in the structural composition, particularly of the proteoglycan and collagen content.RESULTS:
With an increasing degree of degeneration, a significant decrease of the equilibrium modulus was detected, while simultaneously the water content and the hydraulic permeability significantly increased. However, the tensile modulus displayed a tendency to decrease with increasing degeneration, which might be due to the significantly decreasing amount of collagen content identified by the IR measurements.CONCLUSION:
The findings of the current study may contribute to the understanding of meniscus degeneration, showing that degenerative processes appear to mainly worsen viscoelastic properties of the inner circumference by disrupting the collagen integrity.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteoglicanos
/
Meniscos Tibiales
/
Enfermedades de los Cartílagos
/
Colágeno
/
Artroplastia de Reemplazo de Rodilla
/
Osteoartritis de la Rodilla
Tipo de estudio:
Prognostic_studies
Límite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Osteoarthritis Cartilage
Asunto de la revista:
ORTOPEDIA
/
REUMATOLOGIA
Año:
2020
Tipo del documento:
Article