Septal Classification | Orientation | Clinical Remarks | Surgeon Degree of Experience Needed |
---|---|---|---|
Class I | Medial-lateral (Coronal Plane) | The most common orientation Careful surgical manipulation Difficulty of the case depends on the size and number of septa | Early -Moderate experience |
Class II | Anterior-posterior (Sagittal Plane) |
Second most common orientation Moderate difficultly based on location Higher incidence of membrane perforation | Moderate experience |
Class III | Horizontal or shelf-like (Transverse Plane) off one of the medial or lateral walls | Least common orientation Difficultly based on location /size Higher incidence of membrane perforation | Significant experience |
Class IV | A combination of Class I, II, or III. | Common incidence Difficult management with high incidence of membrane perforation. Requires modification of the surgical technique and /or special instrument development | Significant experience /advanced technology |