Nonunion
Nonunion
Nonunion (pronounced: non-yoo-ni-uhn) is a term used in medicine to describe the failure of a broken bone to heal properly after a fracture.
Etymology
The term "nonunion" is derived from the Latin words "non" meaning "not" and "unio" meaning "unity" or "union". In a medical context, it refers to the lack of union or healing in a fractured bone.
Definition
Nonunion is a serious complication of a fracture and is said to exist when a fractured bone does not heal within the expected time frame, usually within six months of the injury. This can occur due to several reasons such as inadequate blood supply, infection, or inadequate stabilization of the fracture.
Causes
Nonunion can be caused by several factors including:
- Infection: An infection can prevent the bone from healing properly.
- Smoking: Nicotine can constrict the blood vessels, reducing blood flow to the bone and slowing the healing process.
- Diabetes: This condition can affect the body's ability to heal.
- Malnutrition: A lack of proper nutrients can hinder the body's healing process.
Treatment
Treatment for nonunion typically involves surgery to stabilize the bone and promote healing. This may include the use of bone grafts, internal fixation devices, or external fixation devices. In some cases, electrical stimulation may be used to encourage bone growth.
Related Terms
- Delayed union: This is a term used when a fracture is taking longer than usual to heal, but is not yet classified as a nonunion.
- Malunion: This refers to a fracture that has healed, but in the wrong position.
- Pseudoarthrosis: This is a type of nonunion where a false joint forms at the fracture site.
External links
- Medical encyclopedia article on Nonunion
- Wikipedia's article - Nonunion
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