Bilateral 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.
Extended Definition
Bilateral arthritis means both paired joints are affected—both knees, both hips, both shoulders, etc. In osteoarthritis, bilateral involvement is common because similar factors (body weight, activity patterns, genetics) affect both sides.
Patterns
- Symmetric - Both sides equally affected (more common in RA)
- Asymmetric - One side worse than the other (more common in OA)
- Sequential - One side develops first, followed by the other
Treatment Considerations
With bilateral OA:
- May need injections in both joints (often at different visits)
- Physical therapy exercises for both sides
- Activity modifications for overall joint protection
- Bilateral knee replacement possible but staged approach often preferred
Insurance Note
Medicare and most insurance plans cover HA injections for bilateral knee OA, but typically require treating one knee at a time with appropriate intervals between treatments.
Related Terms
More Conditions Terms
View allBone 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.
Degenerative Joint Disease
Another name for osteoarthritis, emphasizing the progressive wear-and-tear nature of the condition. Often abbreviated as DJD.