[Generation of bioartificial organs. The cornea as a model].

The development of bioartificial organs is a new target in the development of tissue engineering. It consists in the use of stem cells in a decellularized stroma of other organs. In this paper we present our previous experience in the construction of a complete artificial cornea using cell cultures and biomaterials and compare it with the construction of a bioartificial cornea using a decellularized porcine stroma.

[Recto-sacral fixation in the treatment of rectal prolapse refractory to conservative treatment].

Introduction: The clinical cases of 20 patients submitted to Reifferscheid intervention (fixation of rectum to promontorium) between 1967 and 1997 are presented.

Patients And Methods: Twenty patients have been treated by means of the operation of Reifferscheid. They were divided in two groups: from 1967 to 1972, ten patients were submitted to this technique (group A).