Kyoto ENT Surgicenter, Kyoto, Japan.
Laryngoscope. 2023 Nov;133(11):3028-3033. doi: 10.1002/lary.30707. Epub 2023 Apr 18.
To determine the durability of current titanium implants (TI) used in voice improvement surgery for adductor spasmodic dysphonia (ADSD), which is type II thyroplasty (T2T), and identify the effects of their fractures on vocal functions.
A total of 36 ADSD patients who underwent T2T had the following exams: The CT scans of the larynx were performed 1 year after the surgery to assess the fractures of TI. The improvement in the mean voice handicap index 10 (VHI-10) scores and the success rate between nonfractured (NFR) and fractured (FR) groups were compared.
It was indicated that TI was broken in 21 cases (58.3%). In one case (2.7%), a fracture on the part of the bridge that connects both sides of the plates was observed, and fractures at holes placed on the plates in the other 35 cases (55.6%). The mean VHI-10 score improved from 27.2 ± 8.1 to 11.4 ± 7.9 in the NFR group and from 26.3 ± 4.9 to 9.7 ± 7.9 in the FR group. The success rates were 66.6% in the NFR group and 71.5% in the FR group. No statistical difference was observed in the improvement in the mean VHI-10 scores, and the success rate between the two groups. However, two cases resulted in failure in the FR group, whereas no worsened case was observed in the NFR group.
The current TI used in T2T has low durability and could result in the worsening of vocal symptoms after the surgery.
4 Laryngoscope, 133:3028-3033, 2023.
确定用于痉挛性发声障碍（ADSD）的 II 型甲状软骨成形术（T2T）的当前钛植入物（TI）的耐用性，并确定其骨折对发声功能的影响。
对 36 例接受 T2T 的 ADSD 患者进行了以下检查：术后 1 年进行喉部 CT 扫描，以评估 TI 骨折情况。比较非骨折（NFR）组和骨折（FR）组的平均嗓音障碍指数 10（VHI-10）评分改善和成功率。
结果表明，21 例（58.3%）TI 断裂。1 例（2.7%）观察到桥接两侧板的部分骨折，35 例（55.6%）在板上的孔处发生骨折。NFR 组的平均 VHI-10 评分从 27.2±8.1 改善至 11.4±7.9，FR 组从 26.3±4.9 改善至 9.7±7.9。NFR 组的成功率为 66.6%，FR 组为 71.5%。两组间平均 VHI-10 评分改善和成功率无统计学差异。然而，FR 组有 2 例失败，而 NFR 组无恶化病例。
目前用于 T2T 的 TI 耐用性低，术后可能导致嗓音症状恶化。
4 级喉镜，133：3028-3033，2023。
