<unk> s form because of the increase in a damaged joint's surface area. This is most common from the onset of arthritis.<unk> s usually limit joint movement and typically cause pain.<unk> s form naturally on the back of the spine as a person ages and are a clinical sign of degeneration in the spine. In this case, the<unk> s are commonly not the source of back pains, but instead are a sign of an underlying problem. However,<unk> s on the spine can impinge on nerves that leave the spine for other parts of the body. This impingement can cause pain in both upper and lower limbs and a numbness or tingling sensations in the hands and feet because the nerves are supplying sensation to their dermatomes.<unk> s on the fingers or toes are known as Heberden's nodes (if on the distal interphalangeal joint) or Bouchard's nodes (if on the proximal interphalangeal joints).
Osteophyte
Condylar hyperplasia
Perthes lesion
Joint dislocation
Tarsal coalition
Bone cyst
Heterotopic ossification
Osteochondrosis