Advanced techniques in frontal sinus surgery
In the field of paranasal sinus surgery, innovative techniques are key to improving patient outcomes. A highly complex and relevant procedure is the Modified Lothrop, DRAF 3, an advanced endoscopic intervention to treat pathologies of the frontal sinus. Dr. André Felippu, a recognized expert in endoscopic breast surgery, presents at the surgical training app SURGSCHOOL a detailed case in which this technique was successfully performed. A complete description of the case, the surgical steps and the clinical knowledge acquired during the operation are provided below.
Patient description and preoperative images
The patient, with a history of previous sinus surgery, had persistent frontal headaches due to a lesion in the frontal sinus. preoperative images Computed tomography (TAC) in coronal and sagittal sections revealed a dense lesion, of bony consistency, which extended from the interfrontal septum to the posterior wall of the frontal sinus. This lesion exerted significant pressure on the frontal lobe, causing compression headaches, but without secondary infection.
Key steps of the modified Lothrop procedure (Draf III)
Dr. Felippu began the intervention by reviewing previous surgeries, observing the presence of a synechia between the right middle turbinate and the nasal septum, as well as a previously attempted septectomy. From there, he proceeded with the following steps:
- Infiltration and initial incision: The surgery began with infiltration and access to the agger nasi on the left side, allowing early entry into the left frontal sinus. Partial resection of the middle turbinate was performed to facilitate the surgical approach.
- Right-sided approach and septectomy expansion: Moving to the right side, Dr. Felippu expanded the anterosuperior septectomy previously incomplete. This step was crucial to obtain adequate visualization and access to both frontal sinuses.
- Union of the frontal sinuses: Using a osteotome or with a chisel, Dr. Felippu carefully connected both frontal sinuses, creating a unified cavity. This step allowed access to the lesion while maintaining structural integrity. Although the lesion appeared benign, its partial resection was necessary to relieve compression on the frontal lobe.
- Resection of the lesion and modification of the frontal septum: The lesion was partially resected to reduce pressure on the frontal lobe, again using the osteotome. The aim was not to remove the entire lesion, but to relieve the compressive effects that caused the headaches.
- Final adjustments and postoperative images: Dr. Felippu stressed the importance of widening the anteroposterior distance between the sinuses to prevent future closure. Intraoperative and postoperative images showed successful resection and optimal pneumatization of the left suborbital region.
Postoperative outcome and follow-up
Postoperatively, the patient underwent routine evaluations using TAC y endoscopy to monitor recovery. One month after surgery, imaging showed good healing, and at three months, the frontal sinuses remained open with no signs of significant closure. Dr. Felippu emphasized the importance of creating adequate space during the operation to avoid long-term complications.
