Orbital volume augmentation with adjustable prefabricated methylmethacrylate subperiosteal implants

Superior sulcus deformities in anophthalmic sockets remain a challenge in reconstructive surgery. Prior research has shown that traditional implant materials often lack sufficient stability and adaptability. No prior work had resolved the issue of intraoperative customization for volume and shape. That uncertainty drove the need for a more adjustable and retrievable solution. Existing techniques have limitations in direct visualization and postoperative complications. This gap motivated the exploration of prefabricated subperiosteal implants. The need for a method that allows intraoperative modifications became evident. Customization without additional surgical steps was a key objective.

The aim of this clinical investigation was to evaluate the use of prefabricated subperiosteal implants for superior sulcus deformities. These implants are designed to offer intraoperative adjustments for volume and shape. The study focused on nine anophthalmic sockets with documented deformities. The motivation stemmed from the need for retrievable and stable implants. The researchers proposed that methylmethacrylate could enhance implant versatility. The study aimed to assess stability, ease of insertion, and complication rates. The primary objective was to determine the feasibility of this approach. The secondary goal was to evaluate postoperative outcomes and complications.

Nine anophthalmic sockets were selected for implant placement. Prefabricated subperiosteal implants were used in each case. The implants were modified intraoperatively with methylmethacrylate. Direct visualization was maintained during insertion. The surgical approach allowed for real-time adjustments to volume and shape. Implant stability was monitored over time. Postoperative complications were recorded and analyzed. The researchers evaluated outcomes for extrusions, migrations, and infections.

The implants demonstrated increased stability in all cases. No extrusions or infections were reported during follow-up. Migration of the implants did not occur in any patient. Mild undercorrection was observed in some cases. Upper eyelid blepharoptosis was noted as a complication. Transient ectropion occurred in a few patients. Intraoperative modifications with methylmethacrylate were successful. The ease of retrieval was confirmed in cases where necessary.

The authors suggest that prefabricated subperiosteal implants offer advantages in orbital reconstruction. The use of methylmethacrylate allows for intraoperative customization. The absence of extrusions and infections supports implant safety. The researchers propose that these implants provide increased stability. The possibility of retrieval was confirmed in clinical practice. Mild undercorrection and transient ectropion were noted as limitations. The study supports the feasibility of this approach for superior sulcus deformities. The authors suggest further evaluation in larger patient cohorts.