[Efficacy observation of auditory reconstruction using three different materials in ossiculoplasty and mastoidectomy to treat chronic otitis media].
OBJECTIVE
To study the effects of different types of prosthesis used in ossiculoplasty on mastoidectomy of treating chronic otitis media.


METHODS
One hundred and forty three patients with chronic otitis media were treated by canal wall-down tympanoplasty with ossiculoplasty in a single stage. According to material of prosthesis, they were classified as titanium group (group A, 52 cases), hydroxypatite group (group B, 47 cases) and autogenous bone group(group C, 44 cases). The postoperative complication and hearing thresholds were analyzed in the 24 months follow-up. Average postoperative air-conduction gain and air-bone gap were measured at four frequencies: 0.5, 1.0.2, and 4.0 kHz.


RESULTS
12-month after operation, the average air threshold and air-bone gaps of the three groups were reduced (P < 0.05). The reconstruction successful rate (78.7%) of group A was slightly better than that of B, C (68.1%, 70.4%), there was no statistically significant difference. The difference of the average air threshold and air-bone gaps of group B, C after 24-month of operation and 12-month after operation was statistically significant (P < 0.05). The reconstruction successful rate (48.9%, 45.5%) of group B, C was lower than that of A (76.9%), the difference was also statistically significant (P < 0.05).


CONCLUSIONS
Prostheses using titanium type could give good functional results and strong stability with low complication.
Department of Otolaryngology-Head and Neck Surgery, People's Hospital of Jingjiang, Jingjiang 214500, China. gxh13952697666@yahoo.com.cn
Xinghua
X
Gu
Jing
J
Zhu
Yue
Y
Su
D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009998:Ossicular Prosthesis / Q000145:classification*; D019933:Ossicular Replacement / Q000295:instrumentation* / Q000379:methods; D010033:Otitis Media / Q000601:surgery*; D014025:Titanium; D016896:Treatment Outcome
D014025:Titanium