Difference between revisions of "Lizard Avascular Necrosis of Digits or Tail"
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Dry gangrene of the extremities is a common problem in captive lizards. Very often the aetiology is not apparent. Differential diagnoses for swollen toes includes digital or joint infection, fracture, luxation and articular or periarticular gout or pseudogout. | Dry gangrene of the extremities is a common problem in captive lizards. Very often the aetiology is not apparent. Differential diagnoses for swollen toes includes digital or joint infection, fracture, luxation and articular or periarticular gout or pseudogout. | ||
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==Aetiology== | ==Aetiology== | ||
| − | * | + | *Dysecdysis often resulting from low humidity |
*Trauma | *Trauma | ||
*[[Lizard Hyperthermia/ Hypothermia|Hypothermia]] | *[[Lizard Hyperthermia/ Hypothermia|Hypothermia]] | ||
*Dermatitis | *Dermatitis | ||
| − | *Other infections (it can be a sign of severe septicaemia, mycotoxicosis, mycobacteriosis, mycosis or | + | *Other infections (it can be a sign of severe septicaemia, mycotoxicosis, mycobacteriosis, mycosis or mite infestation) |
==Clinical signs== | ==Clinical signs== | ||
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*History | *History | ||
*[[Lizard Physical Examination|Physical examination]] | *[[Lizard Physical Examination|Physical examination]] | ||
| − | * | + | *Radiology |
==Treatment== | ==Treatment== | ||
Revision as of 15:07, 17 March 2010
 |
This article is still under construction. |
Dry gangrene of the extremities is a common problem in captive lizards. Very often the aetiology is not apparent. Differential diagnoses for swollen toes includes digital or joint infection, fracture, luxation and articular or periarticular gout or pseudogout.
Aetiology
- Dysecdysis often resulting from low humidity
- Trauma
- Hypothermia
- Dermatitis
- Other infections (it can be a sign of severe septicaemia, mycotoxicosis, mycobacteriosis, mycosis or mite infestation)
Clinical signs
- Acute inflammation
- Necrotic tissue
Diagnosis
- History
- Physical examination
- Radiology
Treatment
- Amputation:
- Toes – flush with foot and sutured
- Tails – Amputation of the tail utilising the natural fracture plane through the centre of the vertebra causes little bleeding and is preferred to sharp amputation. Inject local anaesthetic circumferentially around the tail anterior to the amputation site. The tail is then firmly grasped with both hands and bent sharply several times laterally with some rotational force until it snaps and separates. Light pressure for five minutes controls haemorrhage. The stump is not sutured but is bandaged for several days then left open.
- Antibiotics
Prevention
- Correct underlying problem