There is something that can be done and there's a new pictorial series on the basic process (omphalectomy) in a Blanding's turtle available via the WCT link below (under the newest web articles section "09-03-2003 An emergency omphalectomy (egg yolk/yolk sac removal) procedure in an Emys (Emydoidea) blandingii (Blanding's turtle)"
Chris
Ps. It appears the medical section is gone from the KS forums so thus I am posting this here as egg hatching season is definitely upon us from spring clutches!
World Chelonian Trust
