22 July 2023 : Clinical Research
Use of a Flexible Ruler in Measuring the Length of Artificial Stapes During Stapedotomy Under Otoendoscopy
Nan Zeng12ABCDEF, Shang Yan1ABCDEF, Qiong Yang2ABCDEF, Chaobing Gao1ABCDEFG*DOI: 10.12659/MSM.940337
Med Sci Monit 2023; 29:e940337
Table 1 Comparison of audiometric results between the 2 groups.
| 0.5 kHz | 1 kHz | |||||
|---|---|---|---|---|---|---|
| Group A | Group B | P | Group A | Group B | P | |
| BC (dB) | ||||||
| Preoperative | 13.30±10.88 | 10.19±7.41 | 0.000 | 13.30±11.41 | 9.62±5.82 | 0.000 |
| Postoperative | 12.32±10.79 | 10.19±8.06 | 0.000 | 11.25±10.76 | 8.85±6.83 | 0.000 |
| AC (dB) | ||||||
| Preoperative | 50.71±20.48 | 49.04±12.96 | 0.001 | 50.63±20.80 | 48.08±12.17 | 0.000 |
| Postoperative | 33.30±19.87 | 33.25±15.66 | 0.041 | 34.62±15.68 | 33.84±18.56 | 0.181 |
| ABG (dB) | ||||||
| Preoperative | 36.54±8.92 | 34.02±13.67 | 0.000 | 31.35±15.46 | 30.36±15.84 | 0.000 |
| Postoperative | 23.46±12.47 | 20.98±12.81 | 0.000 | 25.77±12.86 | 22.59±11.95 | 0.000 |
| BC (dB) | ||||||
| Preoperative | 22.32±17.37 | 20.00±14.28 | 0.000 | 20.18±16.57 | 18.46±15.22 | 0.000 |
| Postoperative | 15.79±13.02 | 14.62±10.76 | 0.001 | 17.86±14.17 | 15.77±12.47 | 0.000 |
| AC (dB) | ||||||
| Preoperative | 41.96±22.64 | 41.54±13.84 | 0.001 | 54.04±21.59 | 52.23±26.70 | 0.000 |
| Postoperative | 30.45±17.06 | 29.42±15.96 | 0.05 | 42.77±19.61 | 42.69±18.07 | 0.439 |
| ABG (dB) | ||||||
| Preoperative | 21.35±9.65 | 19.38±11.80 | 0.000 | 35.38±13.63 | 31.96±16.00 | 0.000 |
| Postoperative | 14.81±9.64 | 13.66±9.56 | 0.000 | 27.91±12.15 | 26.92±12.34 | 0.000 |
| BC – bone conduction; AC – air conduction; ABG – air-bone gap. Group A: metal stick, n=30; Group B: flexible ruler, n=26. | ||||||