Hemimelia
Hemimelia (pronounced: heh-mee-mee-lee-uh) is a rare medical condition characterized by the absence or partial absence of one or more limbs. The term is derived from the Greek words hemi meaning "half" and melia meaning "limb".
Definition
Hemimelia is a congenital disorder, meaning it is present at birth. It involves the underdevelopment or absence of one or more limbs. The condition can affect any limb, but it is most commonly seen in the lower limbs, particularly the tibia (shinbone) and fibula (calf bone).
Types
There are several types of hemimelia, named according to the bone that is affected. These include:
- Tibial Hemimelia: This is the most common type of hemimelia, where the tibia is either partially or completely missing.
- Fibular Hemimelia: This is a less common type, where the fibula is either partially or completely missing.
- Radial Hemimelia: This type involves the partial or complete absence of the radius (one of the two bones in the forearm).
- Ulnar Hemimelia: This type involves the partial or complete absence of the ulna (the other bone in the forearm).
Causes
The exact cause of hemimelia is unknown. However, it is believed to be due to genetic factors or environmental influences during early embryonic development.
Treatment
Treatment for hemimelia varies depending on the severity of the condition and the specific needs of the individual. It may include physical therapy, prosthetic devices, or surgical procedures such as limb lengthening or amputation.
See Also
External links
- Medical encyclopedia article on Hemimelia
- Wikipedia's article - Hemimelia
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