Chondromalacia
Softening and deterioration of cartilage, most commonly affecting the underside of the kneecap. Often considered an early stage of patellofemoral arthritis.
Extended Definition
Chondromalacia (literally “soft cartilage”) refers to the softening and breakdown of articular cartilage. While it can affect any joint, it most commonly involves the patella (chondromalacia patella).
Grading System
Cartilage damage is graded 1-4:
- Grade 1 - Softening only
- Grade 2 - Blistering/fissuring
- Grade 3 - Partial thickness loss
- Grade 4 - Full thickness loss (bone exposed)
Relationship to OA
Chondromalacia can be considered an early form of osteoarthritis:
- Same underlying process (cartilage breakdown)
- May progress to full OA over time
- Younger patients often diagnosed with chondromalacia
- Older patients more likely diagnosed as OA
Treatment Approach
Early chondromalacia may respond to:
- Physical therapy
- Activity modification
- Weight management
- HA injections (may help preserve remaining cartilage)
Related Terms
More Conditions Terms
View allBilateral Arthritis
Arthritis affecting the same joint on both sides of the body, such as both knees or both hips. Common in osteoarthritis due to similar wear patterns.
Bone Spur
A smooth, bony growth that develops along the edges of bones, especially in joints affected by osteoarthritis. Also called an osteophyte.
Bone-on-Bone
A colloquial term describing advanced osteoarthritis where cartilage has worn away completely, allowing direct contact between bone surfaces. Often painful and may require surgery.
Crepitus
A crackling, popping, or grinding sensation or sound that occurs during joint movement, often felt or heard when bones with damaged cartilage rub together.
Degenerative Joint Disease
Another name for osteoarthritis, emphasizing the progressive wear-and-tear nature of the condition. Often abbreviated as DJD.