That true, but the OP said bisalp which, unless I mistranslated, doesn't remove the ovaries.

And I generally interpret "sterilisation" to mean tubal for the following reasons: When removing ovaries or uterus the main reason isn't usually sterilisation, that's more like a side effect. If the main reason is preventing cancer and the chosen method for that is hysterectomy, it would also have a sterilisation effect, but I wouldn't call the operation a "sterilisation" because that isn't the point of it, you know? And if the point is to do a sterilisation you wouldn't usually go for a hysterectomy, because tubal interventions have much easier operations and much fewer side effects.