ĐÁNH GIÁ KẾT QUẢ PHẪU THUẬT CHỈNH HÌNH HỐ MỔ KHOÉT CHŨM TIỆT CĂN BÍT LẤP HỐ MỔ BẰNG BỘT XƯƠNG TỰ THÂN

Abstract

Objectives: Evaluation of results of revision tympanomastoidectomy with autologous bone pate obliteration. Objects and Methods: Using a The study design describes a intervention case by case that did not have a control group, with a before-after comparison with 22 patients after radical mastoidectomy were treated with revision surgery at some hospitals from November 2018 to March 2023. Results: Among 22 cases, showing that dry ear postoperation was 20/22 (90.9%); The tympanic membrane healed amount 19/21 cases (86.4%). Total epidermalization mastoid cavity had 21/22 cases (95.5%). The pure tone average (PTA) value after surgery was 52.03±30.06dB comprared to preoperation (64.69±26.87dB) in non ossiculoplasty group, and in group ossiculoplasty was 56.61±15.75db compared to 67.59±20.40. PTA postoperation was lower compared to preoperation at all frequencies.The mean air bone gap (ABG) clearly changed in the group of ossiculoplasty after surgery was 24.55±12.43db compared with 38.48±13.50 dB before surgery. ABG was lower than before surgery in both groups. The size of the cavity according to the ratio Va/S after surgery was smaller than before surgery (25.87 with 47.17). The rate of complications was low: 1/22 cases were infected (4.5%) and 1/22 (4.5%) cases had necrosis and peeling of the skin flap. Conclusion: 6 months after surgery, the rate of dry ear was 20/22 (90.9%), anatomical morphology, functional symptoms were improved. This surgery was not more decrease hearing loss, even recovery. It can be seen that the revision tympanomastoidectomy with autologous bone pate obliteration is a technique with good results, performed safely, and can be applied at the first mastoidectomy or revision mastoidectomy