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Shahin S. Rad, M.D.
Fellowship Trained in Hip, Knee & Shoulder Replacement

16311 Ventura Boulevard, Suite 1150,
Encino, CA 91436
Phone: 818-477-0787

Culver City
3831 Hughes Ave, Suite 105
Culver City, CA 90232
Phone: 424-603-6984


Is steroid injection bad for your knee?

A study at the Mayo Clinic has found that corticosteroids, commonly used as a short–term anti–inflammatory and analgesic for the treatment of musculoskeletal disorders, may be cytotoxic to mesenchymal stem cells (MSCs), the direct progenitors of chondrocytes and other musculoskeletal tissue.

The authors of the study concluded, “Corticosteroids frequently are used by physicians to reduce inflammation in patients with musculoskeletal disorders, but these agents may hinder the innate regenerative capacity of mesenchymal stem cells in exchange for temporary analgesia.” However, the researchers’ findings suggest that dexamethasone may be less damaging than other corticosteroids. A separate study, retrospectively conducted at the University of North Carolina at Chapel Hill, investigated the effects of corticosteroid injections in patients’ hip joints and found that 32 out of 33 consecutive patients (97%) showed marked decreases in joint space width, visible on standard radiographs, just six months after injection with corticosteroids and lidocaine. Previous studies have already shown that corticosteroids may have a deleterious effect on chondrocytes, suggesting a potentiation of degenerative joint disease. These two new studies contribute to the growing body of evidence that corticosteroid injections, while providing temporary relief of patients’ joint pain, may at the same time accelerate joint deterioration.

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