Cortisone (Corticosteroid) Injections: Side Effects, Limits & Alternatives

Cortisone Shots: What They Are

Intra-articular or soft tissue injections of corticosteroid esters (triamcinolone, methylprednisolone, betamethasone, dexamethasone) – potent anti-inflammatories. Used for osteoarthritis, bursitis, tendinopathy, inflammatory arthritis, trigger finger, etc.

Side Effects of Repeated / High-Dose Injections

System	Effects	Mechanism / Risk Factors
Metabolic	Hyperglycemia (days-weeks), insulin resistance, weight gain, Cushingoid features	Systemic absorption; diabetics most vulnerable
Musculoskeletal	Tendon weakening/rupture, cartilage damage, osteoporosis, avascular necrosis (rare, high dose)	Collagen inhibition; chondrocyte toxicity; limit frequency
Integumentary	Skin atrophy, hypopigmentation, telangiectasia, delayed wound healing	Superficial injection; facial/cosmetic areas high risk
Endocrine	HPA axis suppression (transient), menstrual irregularity	Systemic absorption; dose/frequency dependent
Ocular	Intraocular pressure rise, cataract (periocular injection)	Direct diffusion; glaucoma risk
Infectious	Septic arthritis (rare: 1:10,000–50,000)	Break in sterility; diabetes, RA, prosthetic joint increase risk
Neuropsychiatric	Mood swings, insomnia, anxiety, rare psychosis	Systemic glucocorticoid effect

Frequency Limits (General Consensus)

Same joint: ≤3–4 per year (minimum 3 months apart).
Systemic load: Consider total annual steroid exposure (inhaled, oral, injection).
Young patients: More conservative (growth plate, cartilage).

Evidence-Based Alternatives

Modality	Indications	Evidence Level
Physical Therapy / Exercise	OA, tendinopathy, mechanical back pain	Strong (first-line per guidelines)
Weight Loss	Knee/hip OA (BMI >25)	Strong (5–10% → significant pain/function improvement)
NSAIDs (oral/topical)	Inflammatory pain	Strong (topical = less systemic risk)
Hyaluronic Acid (Viscosupplementation)	Knee OA	Moderate (controversial; AAOS conditional)
PRP (Platelet-Rich Plasma)	Tendinopathy, mild-moderate OA	Growing (mixed; better for tendons)
Acupuncture	Chronic pain, OA	Moderate (sham-controlled trials)
Supplements (curcumin, omega-3, boswellia, glucosamine/chondroitin)	Mild OA	Low-moderate; variable quality
Bracing / Orthotics	Instability, malalignment	Moderate

Decision Framework

Accurate diagnosis (imaging, exam).
First-line: PT, weight management, activity modification, topical NSAIDs.
Injection if inflammatory flare, diagnostic uncertainty, or bridge to PT.
Limit frequency; monitor glucose, skin, tendon health.
Re-evaluate if >2 injections without sustained benefit.

Bottom Line

Cortisone shots are a tool, not a cure. Use sparingly, with clear indication, alongside active rehabilitation. Alternatives often provide more durable benefit with less risk.