الفهرس 
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Abstract
Conductive hearing loss after head trauma may be due to an ossicular lesion, hemotympanum, tympanic membrane perforation or a combination of these. An ossicular lesion is suspected in patients with non-resolving conductive hearing loss (for more than 6 months) with a persistent air–bone gap >30 dB and an intact tympanic membrane. Various ossicular injuries can occur. The most common are incudostapedial joint dislocation. This prospective study included 27 patients with ISJD. They were 24 males and 3 females, ages ranged from 12 to 27 years with mean 26.5±12.14 years. Two surgical strategies for managing post-traumatic ISJD, with an intact TM, aiming for improving the stability and the functional outcomes of the procedure, the optimal technique for ossicular reconstruction is bypassing the stapes using Teflon piston (stapedotomy). Next, comes the anatomical reconstruction using ionomeric bone cement. The mean preoperative air conduction (AC) and bone conduction (BC) thresholds were 54.5 ±12.7 dB and 15.45 ± 5.2 dB. The mean postoperative AC and BC thresholds were 17.12 ± 8.89 dB and 13.96 ± 5.009dB respectively. The mean pre and postoperative ABGs were 39.04 ± 10.11 and 3.16± 6.46 dB respectively. The postoperative improvement of the pure-tone average by 40.7 dB was statistically significant (p < 0.001). ). The cochlear function remained stable postoperatively, there were no significant changes (p=0.422).