Repair of Schneiderian Membrane Perforation Through Membrane Fixation With Simultaneous Implant Placement: A Case Report
Perforation of the maxillary sinus membrane is a common complication during maxillary sinus elevation. Intraoperative perforation of the maxillary sinus membrane may complicate the procedure and indirectly lead to implant failure. Timely repair of the perforated maxillary sinus membrane can effectively improve the implant survival rate. This case describes a method of repairing a maxillary sinus membrane perforation with a suture-attached collagen membrane and shows stable repair results at a 31-month follow-up.
Preoperative CBCT images showing surgical area (a) Sagittal view of alveolar bone height; (b) No. 4 Alveolar bone height 9 mm; (c) No. 3 Alveolar bone height 3.7 mm.
The zone of maxillary sinus membrane perforation (a) Intraoral photograph: 10 × 10 mm maxillary sinus; (b) Schematic.
Schematic: Peel the maxillary sinus membrane (blue arrow).
Schematic: prepare the hole (blue circle).
Fix the perforation by collage membrane (a) intraoral photograph; (b) schematic.
Schematic: Stabilized osteogenic space formed by “Fixed collagen membrane—Maxillary sinus floor—Collagen membrane of the lateral buccal window.”
CBCT immediately after surgery (a) Sagittal plane; (b) Coronal plane; (c) Bone hole (white arrow).
CBCT 6 months after surgery (a) Sagittal plane; (b) Coronal plane.
Apical radiograph 6 months after surgery.
The finished panorama.
Fixed finished mouth photo.
Follow-up 19 months after the surgery.
Follow-up 31 months after the surgery.
Contributor Notes