Orbital Decompression: Conceptual Approach for Orbital Volume Expansion

Purpose:To review the advances in the surgical techniques of orbital decompression.Methods:A literature review of orbital decompression surgery and experience-based consideration of bony areas for decompression.Results:In the 100-year-plus span of orbital decompression literature, multiple incisions and multiple bone and fat removal strategies have been described. In general, bone removal has been conceptualized as consisting of 4 walls of the orbit. However, the orbital bony anatomy is more subtle than a simple box, and considering 6 areas of potential bony removal allows a more nuanced paradigm for clinical decision-making and for understanding various technique descriptions. Historical and current techniques, and surgical planning and decision-making, are described from the perspective of a 6 area paradigm. Potential complications are reviewed.Conclusion:A conceptual framework for orbital decompression focusing on 6 potential areas of bone removal provides a nuanced and flexible paradigm for understanding and describing surgical techniques, and for designing individualized surgery. Orbital decompression surgery should be customized to the patient's anatomy and symptoms. A review of orbital decompression and outline of a conceptual framework of 6 bony areas for potential removal.