Using of the Chicken Wing's Bone in the Microneusurgical Training Model for Microdrilling

Abstract

Background and objective: Repetitive practicing of microneurosurgical techniques in experimental laboratory using real surgical instruments on training models is extremely important before starting the real surgical interventions. The modeling of the surgical steps with creating of suitable laboratory models is also another important issue in the successfully gaining of microneurosurgical practice.

Materials and methods: In this experimental study, it was created a laboratory training model for microneurosurgical drilling of cranial bones including the close location with the neural and vascular structures. All steps of this study were performed under the operating microscope. Twenty-five fresh chicken wings obtained from supermarket were used for this study. The difficulty and suitability of the model was evaluated in terms of the usability in the training of microneruosurgical microdrilling. Difficulty of the procedure was divided as three degree (very easy, easy, and difficult). The objective criterion for the evaluation of the difficulty of the procedure was the protection of the neurovascular and muscular structures during the procedure.

Results: The suitability of the procedure was also evaluated within three groups as bad, good, and perfect. In four (16%) chicken wing's bone, the difficulty of the microdirilling was evaluated as difficult. Fifteen (60%) of the chicken wing's bones were microsurgically drilled with easy procedure. The remaining six (24%) of the wing's bone microdrilling was evaluated as very easy procedure. The suitability of the model was evaluated as bad in three (12%) of the chicken wing's bone. The suitability was found as good in 16 (64%) of the bones. In the remaining three (24%) of the chicken wing's bone microdrilling, the suitability of the model was evaluated as perfect.

Conclusion: Microsurgical drilling of the chicken wing's bone without any vascular and muscular injury is accepted as the indication of the successfully surgical microdrilling process. Consolidation of the surgical practice in a laboratory setting, grasping and using of microsurgical instruments, can be repeated in several times in this model. We believe that this model will contribute to the practical training of microneurosurgery.

Keywords: Chicken wing's bone; microdrilling; microneurosurgery; training of microsurgery.

Figure 1

The opening of the skin by using microscissor and microbatonet (MS – Microscissor; MB – Microbayonet; V – Vessel; S – Skin)

Figure 2

The microdissection of the muscle bundles through down to the bone segment (MS – Microscissor; MB – Microbayonet; V – Vessel; S – Skin; Musc – Muscle bundle)

Figure 3

The opening of the skin by using microscissor and microbatonet (MS – Microscissor; MB – Microbayonet; V – Vessel; S – Skin; Bo – Bone; Musc – Muscle bundle)

Figure 4

The opening of the periost by using microscissor and microbatonet (MS – Microscissor; MB – Microbayonet; V – Vessel; S – Skin; Per – Periosteum; Musc – Muscle bundle)

Figure 5

The microdrilling of the bone after opening of the periosteum by using microdrill (V – Vessel; S – Skin; Bo – Bone; MD – Microdrill; Musc – Muscle bundle)

Figure 6

The final appearance of the microdrilling process of the bone after opening of the periosteum (V – Vessel; S – Skin; Bo – Bone; MD – Microdrill; Musc – Muscle bundle, arrows shows the drilling area)