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KMID : 1005420220240010016
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Journal of Cerebrovascular and Endovascular Neurosurgery
2022 Volume.24 No. 1 p.16 ~ p.23
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Cosmetic outcome after electrocautery versus non-electrocautery dissection of the temporalis muscle for pterional craniotomy
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Lee Sang-Woo
Lee Yoon-Soo
Lee Min-Seok
Suh Sang-Jun
Lee Jeong-Ho
Kim Jin-Wook
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Abstract
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Objective: Despite the usefulness of pterional craniotomy (PC), its cosmetic outcome is questionable. Electrocautery (EC) causes injuries to adjacent structures, and it could be a factor that affects the cosmetic outcome. Evaluation of cosmetic outcome is difficult because it is often determined by patient’s subjective criteria. The objective of this study is to compare the cosmetic outcome after EC versus non-electrocautery (NEC) dissection of the temporalis muscle for PC by analyzing long-term follow-up data determined from both physician and patient’s aspects.
Methods: Patients at follow-ups between January 2014 and April 2021 after PCs were enrolled. The keyhole (KH) site, the inferior margin of the temporal line of the frontal bone (ITL), the mid-temporal (mid-T) area, and the posterior incision line (PIL) were inspected by a physician to check the presence of depressions. Patient’s cosmetic satisfaction was categorized into satisfactory, intermediate, or unsatisfactory by a survey. The presence of osteolysis was checked from the radiological images. Patients were classified into two groups; one with EC dissection and another with NEC retrograde dissection using a double-ended dissector.
Results: The incidences of depression at the mid-T area and osteolysis were higher in the EC group (p=0.001, p＜0.001). The percentage of satisfactory cosmetic outcome was lower in the EC group (p=0.002). The presences of depression at the mid-T area and osteolysis were related with lower rate of satisfactory outcomes (p＜0.001, p＜0.001).
Conclusions: NEC dissection causes less destruction to adjacent structures and brings better cosmetic outcome after PC.
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KEYWORD
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Cosmetic outcome, Electrocautery, Osteolysis, Pterional, Temporalis
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