Supplementary digital Table 2. Individual surgical findings and audiometry for Teunissen and Cremers class II patients (number of procedures
= 12).
Patient Case number (ear)
Age (years)
Follow- up (months)
Type of malformation Surgical technique
Ossiculoplasty Pre ABG (dB)
Post ABG (dB)
Pre AC (dB)
Post AC (dB)
A 01 10 4 Stapes fixed /
Malformed incus / Perilymph gusher
Stapedotomy Piston (incus-to- stapedotomy)
31 30 45 41
B 02 7 63 Stapes fixed /
Malformed incus / Persistent stapedial artery
Stapedotomy TORP (malleus- to-stapedotomy)
35 20 53 35
C 03 13 13 Stapes fixed /
Malformed incus
Stapedotomy Piston (incus-to- stapedotomy)
48 0 58 18
D 04 14 119 Stapes fixed /
Malformed incus
Stapedotomy Piston (incus-to- stapedotomy)
26 0 53 18
E 05 17 25 Stapes fixed /
Malformed incus
Stapedotomy Piston (incus-to- stapedotomy)
51 0 66 14
F 06 6 13 Stapes fixed /
Malformed incus
Stapedotomy Piston (incus-to- stapedotomy)
18 28 48 53
G 07 14 3 Stapes fixed /
Malleus ankylosis
Stapedotomy TORP (malleus- to-stapedotomy
30 35 50 55
H 08 14 12 Stapes fixed /
Malformed incus
Stapedotomy Piston (incus-to- stapedotomy)
16 0 36 16
H 09 15 3 Stapes fixed / Stapedotomy Piston (incus-to- 24 0 43 16
1 1
1 2
Malformed incus stapedotomy)
I 10 15 24 Stapes fixed /
Malformed incus
Stapedotomy Piston (incus-to- stapedotomy)
24 0 35 15
J 11 6 24 Stapes fixed /
Malformed incus
Stapedotomy TORP (malleus- to-stapedotomy
46 16 66 33
K 12 18 2 Stapes fixed / Abnormal
route of VIIth Nerve
Surgery aborted
Surgery aborted 21 21 40 40
Legend to supplementary digital Table 2
Pre = preoperative; post = postoperative; ABG = mean air-bone gap; AC = mean air-conduction threshold; TORP = total ossicular replacement prosthesis.
2 2
3 4 5 6