Sade Grade (Tympanic Membrane Retraction)
The Sade classification of pars tensa tympanic-membrane retraction, by the depth of the retraction pocket on otoscopy, grades I/II/III/IV.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Sade grade
- III - touching the promontory (atelectasis)
Result: Sade grade III: retraction touching the promontory (atelectasis) but not adherent.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Grade I
- Mild retraction; not touching the incus.
- Grade II
- Touching the incus or stapes.
- Grade III
- Touching the promontory (atelectasis) but not adherent.
- Grade IV
- Adherent to the promontory (adhesive otitis media).
What you enter
- Sade grade
How this is calculated
Sade J, Berco E. Atelectasis and secretory otitis media. Ann Otol Rhinol Laryngol. 1976;85(2 Suppl 25 Pt 2):66-72. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.