What causes arthritis?
Arthritis is usually a problem in older dogs, but the condition can develop from an early age due to problems with bone and joint development. Depending on the cause, arthritis may affect one joint, or any number of your dog's joints. Most cases develop as a result of abnormal rubbing within the joint caused by:

joint instability (e.g. after ligament damage)
damage to or abnormal cartilage development
damage caused by trauma (e.g. fractures)

Should you walk a dog with arthritis?
Arthritic dogs will benefit from controlled exercise. Gentle regular lead walks are better than an hour spent running around after a ball or with another dog.

Dog acl brace could provide support and relieve pain of arthritis in dogs.