Degenerative Joint Disease
Another name for osteoarthritis, emphasizing the progressive wear-and-tear nature of the condition. Often abbreviated as DJD.
Extended Definition
Degenerative joint disease (DJD) is a medical term synonymous with osteoarthritis. The name highlights the progressive, degenerative nature of the condition—cartilage breaks down over time, leading to pain, stiffness, and reduced function.
Why the Different Names?
- Osteoarthritis - Emphasizes joint inflammation (though OA is less inflammatory than rheumatoid arthritis)
- Degenerative joint disease - Emphasizes the wear-and-tear, progressive nature
- Degenerative arthritis - Combines both concepts
Your doctor may use any of these terms interchangeably in your medical records.
Progression
DJD typically progresses through stages:
- Early - Mild cartilage softening, minimal symptoms
- Moderate - Visible cartilage loss, regular symptoms
- Severe - Significant cartilage loss, bone-on-bone contact
- End-stage - Complete cartilage loss, bone remodeling
The goal of treatments like HA injections is to slow progression and manage symptoms, potentially delaying the need for joint replacement.
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.
Chondromalacia
Softening and deterioration of cartilage, most commonly affecting the underside of the kneecap. Often considered an early stage of patellofemoral arthritis.
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.