Application of Double Flap Reconstruction to Craniectomy through Transpetrosal-presigmoid Approach for Petroclival Tumor:Report of 14 Cases / 中国微创外科杂志

ABSTRACT

Objective To evaluate the efficacy of double flap reconstruction after craniectomy through transpetrosal-presigmoid approach in the treatment of petroclival tumor.Methods A total of patients with petroclival tumor were enrolled in this study.Craniectomy was performed on them through the transpetrosal-presigmoid approach,and then double flap reconstruction was carried out.After the temporo-occipotal free osseous flap(retrosigmoid flap)was obtained,the superficial flap of the mastoid process(presigmoid flap)was freed by grinding and drilling.During the operation,partial petrosectomy and mastoidectomy were avoided to protect the semicircular canals and cochlea.Results Among the 14 cases,radical resection of the tumor was performed on 8 patients,subtotal resection on 3,and partial resection on 3.Two patients developed CSF leak through the ear.No subcutaneous hydrops or intracranial infection was found in the patients.The patients were followed up at 3 and 6 months after the operation,during which no complications were detected.Conclusions The rates of CSF leak,subcutaneous hydrops,and intracranial infection are low after applying double flap reconstruction to craniectomy through the transpetrosal-presigmoid approach.The procedure are mini-invasive and safety.