Understanding Knee Osteoarthritis
Knee osteoarthritis affects over 32 million adults in the United States, making it the most common joint disease and the leading musculoskeletal cause of disability. It occurs when the articular cartilage covering the knee bones gradually wears away, leading to progressively narrowing joint space, subchondral bone changes, osteophyte (bone spur) formation, synovial inflammation, and ultimately bone-on-bone contact. The result is chronic pain, stiffness, swelling, and loss of mobility that significantly impacts daily function and quality of life.
While knee replacement remains the definitive treatment for end-stage arthritis, many patients — especially those with mild-to-moderate disease, significant medical comorbidities, or who prefer to exhaust non-surgical options first — achieve excellent functional outcomes with targeted injection therapies. Dr. Qureshi performs all knee injections under ultrasound guidance, confirming accurate intra-articular placement before delivering medication. Studies consistently show ultrasound-guided injections are significantly more accurate and produce better clinical outcomes than landmark-guided approaches.
Types of Knee Pain Treated
- Osteoarthritis (OA) — degenerative cartilage loss causing chronic pain, stiffness, and swelling; the most common indication for knee injections
- Patellofemoral syndrome — pain around or behind the kneecap aggravated by stairs, squatting, and prolonged sitting
- Meniscal tears — partial tears with inflammatory flares respond well to injection therapy
- Pes anserine bursitis — inflammation of the bursa on the inner side of the knee, common in overweight patients and those with OA
- Patellar tendinopathy — "jumper's knee," chronic tendon degeneration at the inferior patellar pole
- Post-surgical knee pain — persistent pain following ACL reconstruction, meniscectomy, or partial knee replacement
Symptoms of Knee Arthritis
- Pain with weight-bearing activities — walking, stairs, rising from a chair, kneeling
- Morning stiffness that improves within 30 minutes of activity
- Swelling and warmth in the joint, especially after activity
- Creaking, grinding, or clicking (crepitus) with movement
- Reduced range of motion — difficulty fully straightening or bending the knee
- Buckling or giving way sensations
- Night pain disrupting sleep in moderate-to-severe disease
Grading Knee Arthritis
Knee osteoarthritis is graded on the Kellgren-Lawrence (KL) scale from 0–4 based on X-ray findings. KL Grade 1–2 (mild to moderate) responds best to injection therapies. KL Grade 3 (moderate-severe) is where the choice between continued injection management and surgical consultation becomes most individualized. KL Grade 4 (severe, bone-on-bone) with significant functional impairment typically warrants orthopedic surgical consultation, though injection options remain available for those not suitable for surgery or wanting to delay.
Treatment Options
- Corticosteroid injections — the most widely used injection treatment; reduces intra-articular inflammation rapidly with peak effect at 1–2 weeks; duration of relief 4–12 weeks; most effective for inflammatory flares with significant swelling
- Hyaluronic acid (viscosupplementation) — injectable joint lubricant supplementing the naturally occurring hyaluronic acid in synovial fluid; evidence supports use in mild-moderate OA; duration of benefit 3–6 months per treatment cycle
- PRP therapy — platelet-rich plasma injections using concentrated growth factors from your own blood; growing evidence for longer-lasting benefit (6–12+ months) particularly valuable in younger patients wanting to delay replacement. Learn more about PRP therapy for joint pain
- Genicular nerve block and RFA — blocking or ablating the genicular nerves that supply sensation to the knee joint; excellent option for patients not suitable for surgery or in whom other injections have failed
- Aspiration — removal of excess synovial fluid to reduce pressure and pain; often combined with a corticosteroid injection
Preventing Progression
While current treatments cannot reverse established cartilage loss, a combination of weight management, targeted exercise, appropriate injection therapy, and activity modification can significantly slow progression and maintain function for many years. Each pound of body weight generates approximately 3–4 pounds of force on the knee joint — losing even 10 pounds reduces knee load by 30–40 pounds per step, which is often clinically meaningful. Dr. Qureshi integrates lifestyle guidance into every treatment plan.