[Bacteriologic studies on the preservation of bone implants].

Area of Science:

• Otolaryngology
• Microbiology
• Biomaterials Science

Background:

• Auditory ossicles are used as implants in tympanoplasty.
• Postoperative infections can arise from germ-contaminated ossicles.
• Effective preservation methods are essential for implant safety.

Purpose of the Study:

• To evaluate the microbiological effectiveness of three common preserving methods for auditory ossicles.
• To identify the optimal disinfection protocol for auditory ossicle implants.

Main Methods:

• Microbiological examinations were performed on auditory ossicles preserved using three different methods.
• Methods included disinfection with Cialit, 70% ethyl alcohol with thiomersal-Ringer's solution, and formalin with Cialit.
• Germ regrowth was assessed after preservation.

Main Results:

• Cialit disinfection alone yielded unsatisfactory results.
• 70% ethyl alcohol followed by thiomersal-Ringer's solution showed satisfactory results.
• Preservation with formalin and subsequent Cialit treatment was most effective, with no germ regrowth observed.

Conclusions:

• Formalin and Cialit offer the most effective germ elimination for auditory ossicle preservation.
• This method ensures the sterility of auditory ossicles intended for tympanoplasty implants.
• Optimized preservation reduces the risk of postoperative infections in tympanoplasty procedures.