Table 1.

Results of temporal bone endoscopic stapedius transection

Temporal bone number	Previous mastoidectomy	Stapedius tendon visible with 0° scope	Stapedius tendon visible with 30° scope	Scutum curetting or canal drilling necessary	Comments
(1) Left	Yes	Yes	Yes	No
(2) Right	Yes	Yes	Yes	No
(3) Left	Yes	Yes	Yes	No	Stapedius tendon was transected bluntly with a Wullstein needle. This resulted in unintended incudostapedial joint separation A prominent anterior canal bulge made the scope insertion and endoscopic guided insertion of instruments slightly more challenging but procedure was still completed using a 2.7 mm diameter scope
(4) Left	Yes	Yes	Yes	No
(5) Right	Yes	Yes	Yes	No
(6) Right	Yes	No	No	No	The stapedius tendon was absent because the facial recess had been previously drilled
(7) Right	Yes	Yes	Yes	No
(8) Left	No	Yes	Yes	No
(9) Right	No	Yes	Yes	No
(10) Left	No	Yes	Yes	No	A prominent anterior canal bulge and narrow ear canal made the scope insertion and endoscopic guided insertion of instruments challenging Procedure was completed using a 1.9 mm diameter scope