Hearing Benefit in Allograft Tympanoplasty Using Tutoplast Processed Malleus

Table 1

Comparison between pre- and postoperative audiograms and assessment of air-bone gap.

	Patient
	1	2	3	4	5	6	7	Mean	SD
Operated ear
Preoperative hearing (air conduction; 500–4000 Hz)	50	41	55	73	54	38	36	49.5	12.7
Preoperative air-bone gap (500–4000 Hz)	30	23	28	43	38	34	35	32.7	6.6
Follow-up (months)	34	26	29	29	20	22	15	25	6
Postoperative hearing (air conduction; 500–4000 Hz)	28	28	39	45	28	19	19	29.1 ^a	9.7
Postoperative air-bone gap (500–4000 Hz)	18	5	24	14	15	9	13	13.8 ^b	6.0
Air-bone gap closure achieved	13	18	4	29	23	25	23	18.9	8.5

^a𝑃=0.0061; ^b𝑃=0.00012. Bold: Mean values. Italic: Standard deviation.