Surgical treatment of otosclerosis using a unique stapes prosthesis without a hook.

BACKGROUND

During stapes surgery, the Teflon wire piston prosthesis is prone to postoperative 'slips' and subsequent necrosis and fracture of the long process of the incus.

AIMS/

OBJECTIVE

We invented and used a novel cup-shaped apatite prosthesis to reduce the incidence of necrosis of the long process of the incus and analysed the postoperative results.

MATERIAL AND

METHODS

Thirty-one ears in 25 patients with otosclerosis who underwent stapes surgery with our apatite prosthesis were evaluated.

RESULTS

The air conduction improved by 24.0 dB (the average) from pre- to post-operation. Additionally, 84.8% of patients achieved an air-bone gap of ≤10 dB for the 4-frequency measurements (p < .01).

CONCLUSIONS

Our findings indicate that our new prosthesis was associated with a good postoperative prognosis in patients with otosclerosis.

SIGNIFICANCE: Our unique prosthesis yielded good outcomes for the treatment of otosclerosis even in the short term.