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Year : 2022  |  Volume : 70  |  Issue : 4  |  Page : 1391--1395

Antegrade Subperiosteal Temporalis Muscle Elevation and Posterior Retraction Technique Avoiding Muscle Incision for Pterional Craniotomy: A Technical Note

1 Department of Neurosurgery, King Edward Memorial Hospital, Seth Gordhandas Memorial Hospital, Acharya Donde Marg, Parel, Mumbai, India
2 Department of Neurosurgery, I.R.C.C.S. NEUROMED, Pozzilli (IS), Italy
3 Department of Forensic Medicine, King Edward Memorial Hospital, Seth Gordhandas Memorial Hospital

Correspondence Address:
Survendra Kumar R Rai
Department of Neurosurgery, K. E. M. Hospital & Seth G. S. M, C., Acharya Donde Marg, Parel, Mumbai, Pin-400 012
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0028-3886.355156

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Background: The current technique of pterional craniotomy involves temporalis muscle incision followed by retrograde elevation. Feasibility of antegrade temporalis muscle elevation without any direct incision over its bulk is evaluated. Objective: Incisionless “antegrade, subgaleal, subfascial, and subperiosteal elevation” of temporalis muscle preserves vascularity and muscle bulk. Posterior maneuvering of “bare” temporalis muscle bulk either above (out rolling) or under (in rolling) the scalp for pterional craniotomy is discussed. Material and Methods: Technique of antegrade, subfascial, subperiosteal elevation, and posterior rotation of temporalis muscle without incising in its bulk by “out rolling” or “in rolling” along the posterior aspect of the scalp incision was carried out in 15 cadavers and later in 50 surgical cases undergoing pterional craniotomy. Postoperatively, patients were evaluated for subgaleal collection and periorbital edema. Operated side cosmesis and temporalis muscle bulk was compared with nonoperated temporalis muscle at 6 months interval. Results: Antegrade subperiosteal dissection of temporalis muscle was possible in all cases. “In-rolling” or “out rolling” technique provided adequate surgical exposure during pterional craniotomy. Postoperative subgaleal collection and periorbital edema was prevented. Facial nerve paresis or temporalis muscle-related complications were avoided. Conclusion: Antegrade, subgaleal, subfascial, and subperiosteal dissection techniques of temporalis muscle elevation without any direct incision in its bulk enables neurovascular and muscle volume preservation. Posterior maneuvering of elevated temporalis muscle with “out rolling” or “in-rolling” technique is easy, quick, and provides adequate exposure during pterional craniotomy. Opening and closing of scalp layers without violating subgaleal space prevent postoperative subgaleal hematoma and periorbital edema.


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