Pathogenesis (disease development)
Heberden’s arthrosis results in the formation of prallelastic nodules, called mucoid cysts (vesicle-like protrusions), on the extensor side of the finger end joints. As it progresses, there is formation of nodular cysts, and later deformity, malalignment (deviation to the thumb side), loss of strength, and limitation of motion.
Etiology (causes)
The exact cause has not been determined.
Biographic causes
- Genetic burden from parents, grandparents.
- Skin type – fair-skinned people are more often affected
Usually the dominant hand is affected.
