European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
Titanium incus interposition in ossiculoplasty: A retrospective study.
СтатьяНазвание и аннотация: Перевод в очереди
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Zheng Wanru, Liu Qingsong, Sun Huiying, Tian Xu, Zhao Yang, Gao Zhiqiang, Feng Guodong
Аннотация
PURPOSE: This study aimed to evaluate the outcomes of ossiculoplasty using titanium incus interposition prostheses, focusing on audiological benefits, extrusion and dislocation rates.
METHODS: This retrospective cohort study was conducted at a tertiary referral center and included 27 patients with conductive hearing loss who underwent ossiculoplasty using titanium incus interposition prostheses between 2015 and 2023. Preoperative and postoperative (minimum 6 months) otoscopic examinations and audiological assessments (average thresholds at 0.5, 1, 2, and 3 kHz) were performed. Patients were categorized as "stable" (n = 20, 74%) if the prosthesis remained functional, or as "failure" (n = 7, 26%) if reoperation was required for middle ear complications.
RESULTS: The mean postoperative air bone gaps (ABG) across 0.5-3 kHz were 19.6 (9.3) dB for all patients, and 16.1 (7.6) dB in the stable group. A total of 20 patients (74%) achieved either a postoperative ABG less than 20 dB or air conduction improvement more than 15 dB. Prosthesis dislocation occurred in 3 cases (11%), with a mean time of 31 months (range: 14-61 months). Extrusion was observed in 3 cases (11%), with a mean time of 25 months (range: 11-34 months). No significant difference in postoperative ABG or ABG closure was observed with respect to surgical indication, surgical approach, or the degree of temporal bone pneumatization.
CONCLUSIONS: Titanium incus interposition prostheses can provide satisfactory postoperative hearing in patients with an intact stapes, preserved malleus handle, and favorable ossicular alignment. Nevertheless, prosthesis displacement or extrusion occurred in 22% of cases, highlighting the need for improved design, biomaterials, and placement techniques to enhance long-term stability.
METHODS: This retrospective cohort study was conducted at a tertiary referral center and included 27 patients with conductive hearing loss who underwent ossiculoplasty using titanium incus interposition prostheses between 2015 and 2023. Preoperative and postoperative (minimum 6 months) otoscopic examinations and audiological assessments (average thresholds at 0.5, 1, 2, and 3 kHz) were performed. Patients were categorized as "stable" (n = 20, 74%) if the prosthesis remained functional, or as "failure" (n = 7, 26%) if reoperation was required for middle ear complications.
RESULTS: The mean postoperative air bone gaps (ABG) across 0.5-3 kHz were 19.6 (9.3) dB for all patients, and 16.1 (7.6) dB in the stable group. A total of 20 patients (74%) achieved either a postoperative ABG less than 20 dB or air conduction improvement more than 15 dB. Prosthesis dislocation occurred in 3 cases (11%), with a mean time of 31 months (range: 14-61 months). Extrusion was observed in 3 cases (11%), with a mean time of 25 months (range: 11-34 months). No significant difference in postoperative ABG or ABG closure was observed with respect to surgical indication, surgical approach, or the degree of temporal bone pneumatization.
CONCLUSIONS: Titanium incus interposition prostheses can provide satisfactory postoperative hearing in patients with an intact stapes, preserved malleus handle, and favorable ossicular alignment. Nevertheless, prosthesis displacement or extrusion occurred in 22% of cases, highlighting the need for improved design, biomaterials, and placement techniques to enhance long-term stability.