Abstract：
OBJECTIVE: To investigate the effects of titanium partial ossicular replacement prosthesis (PORP) and conchal cartilage for ossiculoplasty on hearing results in single-stage canal wall down (CWD) mastoidectomy surgery with type II tympanoplasty in patients with cholesteatoma.
METHODS: The patients were performed surgeries for the first time by a senior otosurgeon from 2009 to 2022 and were performed CWD mastoidectomy with type II tympanoplasty in one stage were enrolled. Patients who could not be followed up were excluded. Titanium PORP or conchal cartilage was used for ossiculoplasty. When the stapes head was intact, a cartilage 1.2-1.5 mm thick was attached directly to the stapes; when the head of the stapes was eroded, a 1 mm high PORP and cartilage of .2-.5 mm thick were placed on the stapes simultaneously.
RESULTS: 148 patients were included in the study in total. The titanium PORP and conchal cartilage groups showed no statistically significant differences at 500, 1000, 2000, and 4000 Hz considering the number of decibels of closure of the air-bone gap (ABG) (P > .05) and pure-tone average ABG (PTA-ABG) (P > .05). Meanwhile, the closure of PTA-ABG between the 2 groups showed no statistically significant differences in the overall distribution (P > .05).
CONCLUSIONS: For patients with cholesteatoma and mobile stapes who underwent CWD mastoidectomy with type II tympanoplasty in one stage, either PORP or conchal cartilage is a satisfactory material for ossiculoplasty.
METHODS: The patients were performed surgeries for the first time by a senior otosurgeon from 2009 to 2022 and were performed CWD mastoidectomy with type II tympanoplasty in one stage were enrolled. Patients who could not be followed up were excluded. Titanium PORP or conchal cartilage was used for ossiculoplasty. When the stapes head was intact, a cartilage 1.2-1.5 mm thick was attached directly to the stapes; when the head of the stapes was eroded, a 1 mm high PORP and cartilage of .2-.5 mm thick were placed on the stapes simultaneously.
RESULTS: 148 patients were included in the study in total. The titanium PORP and conchal cartilage groups showed no statistically significant differences at 500, 1000, 2000, and 4000 Hz considering the number of decibels of closure of the air-bone gap (ABG) (P > .05) and pure-tone average ABG (PTA-ABG) (P > .05). Meanwhile, the closure of PTA-ABG between the 2 groups showed no statistically significant differences in the overall distribution (P > .05).
CONCLUSIONS: For patients with cholesteatoma and mobile stapes who underwent CWD mastoidectomy with type II tympanoplasty in one stage, either PORP or conchal cartilage is a satisfactory material for ossiculoplasty.
摘要：
目的：探讨钛部分听骨置换假体（PORP）和耳廓软骨骨成形术对胆脂瘤患者单期管壁下（CWD）乳突切除术伴II型鼓室成形术听力的影响。
方法：患者于2009年至2022年由高级耳外科医生首次进行手术，并在一个阶段进行CWD乳突切除术和II型鼓室成形术。无法随访的患者被排除在外。钛PORP或耳甲软骨用于骨成形术。当the骨头完好无损时，厚1.2-1.5毫米的软骨直接附着在骨上；当骨的头部被侵蚀时，将1毫米高的PORP和0.2-5毫米厚的软骨同时放置在the骨上。
结果：共纳入148例患者。考虑到气-骨间隙（ABG）的闭合分贝数（P>.05）和纯音平均ABG（PTA-ABG）（P>.05），钛PORP和耳甲软骨组在500、1000、2000和4000Hz时无统计学差异。同时,两组间PTA-ABG的闭合在总体分布上无统计学差异(P>.05)。
结论：对于胆脂瘤和活动骨的患者，在一个阶段接受CWD乳突切除术和II型鼓室成形术，PORP或耳廓软骨是骨成形术的令人满意的材料。
方法：患者于2009年至2022年由高级耳外科医生首次进行手术，并在一个阶段进行CWD乳突切除术和II型鼓室成形术。无法随访的患者被排除在外。钛PORP或耳甲软骨用于骨成形术。当the骨头完好无损时，厚1.2-1.5毫米的软骨直接附着在骨上；当骨的头部被侵蚀时，将1毫米高的PORP和0.2-5毫米厚的软骨同时放置在the骨上。
结果：共纳入148例患者。考虑到气-骨间隙（ABG）的闭合分贝数（P>.05）和纯音平均ABG（PTA-ABG）（P>.05），钛PORP和耳甲软骨组在500、1000、2000和4000Hz时无统计学差异。同时,两组间PTA-ABG的闭合在总体分布上无统计学差异(P>.05)。
结论：对于胆脂瘤和活动骨的患者，在一个阶段接受CWD乳突切除术和II型鼓室成形术，PORP或耳廓软骨是骨成形术的令人满意的材料。
