Radin and Rose argue that subchondral bone is the primary target in osteoarthrosis, not articular cartilage. Using rabbit impulsive loading experiments and biomechanical modeling, they show bone changes precede cartilage changes. The paper asks whether cartilage destruction is initiated and driven by the mechanical properties of the underlying bony bed.
Osteoarthritis has long been framed as a cartilage disease, but this paper reframes it as a bone disease with cartilage consequences. Treatments targeting only cartilage — debridement, chondroplasty. Address the wrong tissue at the wrong time.
When counseling patients on activity modification, the key variable is impact rate, not load magnitude alone. Running and jumping generate pathologic 50-msec impulses that cycling and swimming do not. This is the mechanistic rationale for prescribing low-impact exercise in early osteoarthrosis.
Viscoelastic insoles and shock-absorbing footwear are not merely comfort measures. This paper provides the mechanistic basis for their use as potential disease-modifying interventions by attenuating peak dynamic forces before they drive subchondral remodeling.
The inverse relationship between osteoporosis and osteoarthrosis. Soft bone protects cartilage, stiff bone destroys it. Is a classic board concept rooted directly in this framework.
Radin and Rose argue that subchondral bone is the primary target in osteoarthrosis, not articular cartilage. Using rabbit impulsive loading experiments and biomechanical modeling, they show bone changes precede cartilage changes. The paper asks whether cartilage destruction is initiated and driven by the mechanical properties of the underlying bony bed.
Osteoarthritis has long been framed as a cartilage disease, but this paper reframes it as a bone disease with cartilage consequences. Treatments targeting only cartilage — debridement, chondroplasty. Address the wrong tissue at the wrong time.
When counseling patients on activity modification, the key variable is impact rate, not load magnitude alone. Running and jumping generate pathologic 50-msec impulses that cycling and swimming do not. This is the mechanistic rationale for prescribing low-impact exercise in early osteoarthrosis.
Viscoelastic insoles and shock-absorbing footwear are not merely comfort measures. This paper provides the mechanistic basis for their use as potential disease-modifying interventions by attenuating peak dynamic forces before they drive subchondral remodeling.
The inverse relationship between osteoporosis and osteoarthrosis. Soft bone protects cartilage, stiff bone destroys it. Is a classic board concept rooted directly in this framework.