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ORIGINAL ARTICLE
Year : 2013  |  Volume : 8  |  Issue : 2  |  Page : 90-92

Silicone injected cadaveric head for neurosurgical dissection: Prepared from defrosted cadaver


Department of Surgery, Neurosurgery unit, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand

Correspondence Address:
Kriengsak Limpastan
110 Intawaroros Street, Muang, Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1793-5482.116382

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Objective: To study and report on an alternative method of preparation of head specimens for neurosurgical dissection using defrosted cadavers. Materials and Methods: Twenty-four head specimens were procured through the Department of Anatomy, received by donation three to seven days after funeral activity. The specimens were sectioned through the neck, and preserved by refrigeration at a temperature of -10°C for a period of one week to three months prior to preparation. The process began with defrosting the frozen head specimens for 48 hours in a refrigerator, in which the temperature was controlled within the range of -2° to -8°C. The great vessels were identified and cannulated. These were then irrigated with tap water until clear, following which colored silicone was injected. The specimens were preserved in 95% ethyl alcohol, and were assessed for quality one week after the preparation process. They were then re-assessed at monthly intervals for 12 months. Results: When compared with specimens prepared from fresh cadavers, our method provided similar quality specimens for dissection. The scalp and muscles of all specimens remained soft. The vasculature was good, and the colored silicone made identification easy. The brain tissues were soft and easily retracted, and still in good condition for dissection after a long preparation period (12 months). Conclusion: The head specimens prepared with this method were of good quality for dissection, and were comparable in quality to those prepared from fresh cadavers as in published methods. We were thus able to provide a suitable substitute to fresh head specimens in situations where access to fresh cadavers is unavailable.


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