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At least 613 records · Page 34Linked to original sources
PubMed1988

Revision stapes surgery.

The records of 120 patients who had undergone revision stapedectomy were analyzed to determine: (i) the causes of failure; (ii) how to prevent failure by taking precautions during primary surgery; (iii) hearing results; and (iv) possible identifying factors which might pinpoint those patients with a high risk of sensorineural deafness. A review of these cases demonstrates that the results of revision stapedectomy are different from those of primary stapedectomy. The commonest cause of failure was prosthetic dislocation (30.8 per cent), followed by fibrous adhesions (18.3 per cent) and otosclerotic regrowth (14.1 per cent). First revision operations resulted in post-operative bone-air gaps of 15 dB. or less in 46.5 per cent of cases, much better than 25 per cent for second revisions. Primary stapedectomy resulted in successful closure of the air-bone gap to 15 dB. or less in 89.5 per cent of cases. The sensorineural loss occurred in 11.3 per cent or first revisions and in 16.6 per cent of second revisions, as compared to 1.3 per cent after primary surgery. 'Dead ears' were encountered in 2.2 per cent of first revisions, as compared to nil in the primary group.

Adolescent↗
PubMed1997

Revision stapes surgery.

This paper reports on the analysis of 332 otosclerosis revision operations. The results have been evaluated with reference to the type of the procedure at primary surgery, the alleged cause of failure and the applied technical solution. The need for revision surgery was found higher after primary total stapedectomy (3.4 per cent) than after partial stapedectomy (2.2 per cent) or stapedectomy (two per cent). The reason for revision varied according to the originally applied technique eg a migrated piston, a too short piston and a lateralized graft are almost exclusively found after total stapedectomies. The median hearing gain after revision of stapedectomy and partial stapedectomy was higher (20 dB and 18 dB respectively) than that after revision surgery for total stapedectomy (12 dB), but significantly lower than hearing gain after primary surgery (32 dB). Revisions yielded better results in the case of primary interventions with the use of a piston or pistonwire than in the case of primary interventions with a wire-type prosthesis. The risk for sensorineural loss (one per cent) was not higher than in primary surgery.

Adolescent↗