Understanding Torn Cartilage in the Knee
The meniscus is a piece of cartilage shaped like a C that cushions and stabilizes the knee joint. A tear can happen suddenly during a twisting injury or gradually as part of age-related wear. Many meniscus tears can be managed without surgery, especially when the tear is small or located in an area with good blood flow.
Causes
Meniscus tears generally fall into two categories:
Traumatic tears like a sudden twist, pivot, or deep squat with the foot planted
Degenerative tears; as the meniscus weakens with age, and can tear with minor movements like standing up or getting out of a car.
Direct impact to the knee, like a fall or collision.
Combined injuries alongside ACL or other ligament injuries.
Symptoms
Common symptoms include:
Pain along the joint line
Swelling that develops over hours to about a day after injury.
A catching, popping, or locking sensation in the knee.
A feeling that the knee is giving way or unstable.
Difficulty fully straightening or bending the knee.
Seek prompt medical care if: The knee becomes hot, red, and swollen, especially with fever; you can't bear weight after an injury; or the knee locks and won't straighten. New calf pain and swelling can signal a blood clot and needs urgent evaluation.
Imaging Studies to Consider
Imaging helps confirm the tear and rule out other injuries:
MRI of the knee is the best test for visualizing the meniscus and surrounding ligaments.
X-ray of the knee doesn't show the meniscus directly, but helps to rule out fracture and assess alignment or arthritis.
Physical Therapy, Home Exercise & Other Conservative Techniques
Many meniscus tears, especially degenerative ones, respond well to a structured rehabilitation program without surgery:
Physical Therapy
Quadriceps strengthening to better support the knee joint.
Range-of-motion restoration exercises.
Proprioception and balance training.
Home Exercise Program
Quad sets and straight leg raises.
Balance and proprioception exercises.
Other Studied Techniques
Activity modification during flares, especially deep squatting and pivoting.
A knee brace during high-demand activity, if recommended by your physical therapist or surgeon.
Ice after activity.
Interventional Treatment Options
Non-surgical treatments can effectively manage many meniscus tears, particularly degenerative tears in older adults:
Knee joint corticosteroid injection: Reduces inflammation and pain inside the knee joint.
Hyaluronic acid (HA) injection: HA is a large molecule that absorbs water to provide extra cushioning.
Genicular nerve block: A diagnostic injection near the small nerves supplying the knee joint to reduce pain signals. This test helps us determine whether a radiofrequency ablation is a viable option for longer-lasting relief.
Genicular nerve radiofrequency ablation: Uses heat to disable the small sensory nerves around the knee for longer-lasting relief.
Platelet-rich plasma (PRP): An injection using components of your own blood to support joint healing. Evidence is still developing; it may be considered for low-grade, degenerative tears, usually as a short series of injections around the meniscus. It is not a substitute for surgical evaluation of a knee that locks or feels unstable.
Acupuncture: A technique using thin needles at specific points that may help reduce knee pain and improve function alongside other treatments.
Surgical referral: For tears causing true mechanical locking, or that fail conservative care, we refer to orthopedic surgery for consideration of knee surgery.
Neuromodulation: Spinal Cord & Peripheral Nerve Stimulation
Neuromodulation is not usually needed for an isolated meniscus tear, but may be considered for chronic knee pain that persists despite maximal treatments:
Peripheral nerve stimulation (PNS) of the genicular nerves: A small electrode placed near sensory nerves in the knee and thigh to calm chronic, persistent knee pain without opioids.
Spinal cord stimulation (SCS)/Dorsal root ganglion (DRG): Rarely needed for isolated meniscus pain, but may be an option for widespread or refractory chronic knee pain in select patients.
How Strong Is the Evidence?
A summary of the evidence supporting key interventional treatments for meniscus-related knee pain:
How to read this: Strong means consistent results from multiple high-quality studies. Moderate means generally favorable results with some limitations. Mixed or early means results so far are inconsistent or still emerging. Limited means few or lower-quality studies; these options can still be considered in select cases following a discussion with your healthcare provider.
Intra-articular corticosteroid injection: Moderate evidence.
Genicular nerve radiofrequency ablation: Moderate evidence.
Platelet-rich plasma (PRP): Mixed or early evidence.
Acupuncture: Moderate evidence.
Evidence reviewed November 2026. These ratings summarize published research and major medical society guidelines available at that time. Research continues to evolve, and we will go over the most current evidence for your situation at your visit.
Pain Psychology Techniques
Pain psychology techniques help you stay active and cope with pain during recovery, and are especially useful if pain becomes chronic:
Cognitive behavioral therapy (CBT) reframes unhelpful thoughts about pain and disability.
Graded activity pacing is a structured plan to safely rebuild activity without flare-ups.
Relaxation training and diaphragmatic breathing helps reduce muscle guarding around the joint.
Mindfulness-based stress reduction lowers overall pain intensity and stress.
Biofeedback teaches self-regulation of muscle tension that can protect the joint.
Non-Opioid Medication Options
Non-opioid medications can effectively manage meniscus-related pain:
Anti-inflammatory and analgesic options
NSAIDs like ibuprofen or naproxen reduce inflammation and swelling.
Acetaminophen for pain relief, often combined with NSAIDs.
Topical diclofenac gel provides an anti-inflammatory effect applied directly to the knee with minimal whole-body absorption.
For chronic or persistent pain
Duloxetine is an SNRI antidepressant also approved for chronic musculoskeletal pain.
Related Procedures
Related Conditions
Talk With Us About Your Options
Call 650-507-4113 or send us a message to schedule a consultation at our Daly City, Los Altos, or Stockton office. We will review what may be causing your pain and walk through the risks, benefits, and alternatives of each option with you.
Browse all conditions by body area
This information is provided for general patient education and does not replace individualized medical advice. Please discuss your specific symptoms, diagnosis, and treatment options with your pain management physician.
