MINORS Criteria

<b>Background:</b> Type 1 thyroplasty, first described by Isshiki et al., is a standard surgical intervention that medializes the paralyzed vocal fold using various implant materials to restore phonation.<b>Objectives:</b> This scoping review aimed to compare pre- and postoperative subjective (VHI-10/30) and objective (MPT and MDVP) phonation outcomes across different implant materials, and to identify the optimal material for Type 1 thyroplasty.<b>Methods:</b> A scoping search of PubMed and Scopus was conducted for studies published between 2014 and 2024. This study use PRISMA-Scr: Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews guideline. Studies reporting pre- and postoperative phonation outcomes in UVFP patients undergoing Type 1 thyroplasty with specified implant materials were included. Weighted means were calculated to compare outcomes across implant types.<b>Results:</b> From 227 screened articles, 164 patients were included. Five implant materials were identified: titanium (n=27), Gore-Tex (n=94), silicone/silastic (n=25), and cadaveric fascia lata (n=10). Titanium implants demonstrated the greatest improvements in MPT (17.6 seconds) and VHI-30 (53.31 points). Gore-Tex and silicone/silastic showed moderate gains, while cadaveric fascia lata yielded the least MPT improvement and intermediate VHI-30 scores, with increased noise-to-harmonics ratios due to graft resorption. MDVP analysis indicated stable or improved acoustic parameters with synthetic implants. Complication rates were low.<b>Conclusion:</b> Titanium implants provided the most durable voice improvements, though current evidence is limited by small cohorts and combined procedures. Synthetic materials offer intermediate efficacy, while biological grafts are less effective but remain alternatives when synthetics are unavailable. Personalized implant selection and future prospective trials with standardized outcome measures are needed to guide optimal material choice in Type 1 thyroplasty.<b>Clinical Significance:</b> This review demonstrates that the choice of implant material in type 1 thyroplasty has a substantial impact on both subjective and objective voice outcomes for patients with unilateral vocal fold paralysis. These findings highlight the importance of individualized implant selection to optimize long-term phonatory outcomes and improve quality of life in affected patients.Registration: This scoping review was registered with the Open Science Framework (https://doi.org/10.17605/OSF.IO/WZNEK)背景：1型甲状软骨成形术（Type 1 thyroplasty）由Isshiki等人首次提出，是一种标准手术干预手段，通过各类植入材料使麻痹的声带向内侧移位以恢复发声功能。 研究目的：本范围综述旨在对比不同植入材料下术前与术后的主观（嗓音障碍指数量表10/30版，VHI-10/30）与客观（最长发声时间MPT、多维度嗓音分析程序MDVP）发声结局，并明确1型甲状软骨成形术的最优植入材料。 研究方法：本研究针对2014年至2024年间发表的文献，在PubMed和Scopus数据库中开展范围检索，遵循PRISMA-Scr：系统评价与元分析扩展范围综述报告规范（PRISMA-Scr: Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews）。纳入了报告接受1型甲状软骨成形术且使用特定植入材料的单侧声带麻痹（UVFP）患者术前及术后发声结局的研究，通过计算加权均值以对比不同植入材料类型的结局指标。 研究结果：本次检索共筛选227篇文献，最终纳入164例患者。共识别出5种植入材料：钛材（n=27）、膨体聚四氟乙烯（Gore-Tex，n=94）、硅酮/硅橡胶（n=25）以及尸体阔筋膜（n=10）。钛材植入物在最长发声时间（17.6秒）与VHI-30评分（53.31分）方面展现出最显著的改善；膨体聚四氟乙烯与硅酮/硅橡胶的改善程度中等；而尸体阔筋膜的最长发声时间改善幅度最小，VHI-30评分处于中等水平，且因移植物吸收出现噪声与谐波比值升高的情况。多维度嗓音分析程序结果显示，合成材料植入物的声学参数保持稳定或有所改善，并发症发生率较低。 研究结论：钛材植入物可带来最持久的嗓音改善，但当前证据受限于样本量较小且包含联合手术的情况。合成材料的疗效处于中等水平，生物移植物的疗效较差，但在无法使用合成材料时仍可作为替代方案。未来需开展采用标准化结局指标的前瞻性试验，并推行个体化植入材料选择方案，以指导1型甲状软骨成形术中的最优材料选择。 临床意义：本综述表明，1型甲状软骨成形术中植入材料的选择对单侧声带麻痹患者的主观与客观嗓音结局均具有显著影响。上述研究结果凸显了个体化植入材料选择的重要性，可优化患者的长期发声结局并改善其生活质量。 注册信息：本范围综述已在开放科学框架（Open Science Framework）注册（https://doi.org/10.17605/OSF.IO/WZNEK）