Since Shea’s first description of stapes mobilisation procedure, improvements in the technique have resulted in the development of alloplastic stapes prosthesis. The authors prospectively conducted a single-centre study to determine the safety and efficacy of the MED-EL mAXIS stapes prosthesis in 34 cases. The new mAXIS prosthesis is made of pure titanium and is available in varying lengths and diameters. The perforated loop of the prosthesis crimps onto the long process of the incus and is designed to reduce direct pressure on the mucosal surface and the rebound effect due to the resistance offered by the titanium during crimping. The study showed that the prosthesis was easy to use. The authors report short-term results at 25 (± 15) days and mid-term 181 (± 107) days. The air-bone gap-closure was within 10 dB in 61% of cases, and within 20 dB in 100% of cases at their mid-term (181 days) postop follow-up. Long-term results are awaited and will further confirm the efficacy and safety profile of this new stapes prosthesis with the perforated loop.
mAXIS stapes prosthesis
Reviewed by Gauri Mankekar
Safety and efficacy of the mAXIS stapes prosthesis.
CONTRIBUTOR
Gauri Mankekar
Department of Otolaryngology-Head Neck Surgery, Louisiana State University Shreveport, Louisiana, USA.
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