[Xenoplasty of the dura mater by means of formalinized grafts].

The possibility of using as plastic material animal (neat cattle, pig) dura mater stored in 0.5% formaldehyde solution was studied. The structure of the dura mater tissue is maintained for a 3-year storage period, and it therefore can be used during this period. The results of experiments (on 30 dogs) and clinical observations (63 patients) show that dura mater grafts used to repair a defect ensure airtightness of the subdural space and separate the brain from the overlying tissues, thus preventing the development of an adhesive-cicatricial process. On resorption, the graft is replaced by an organ-typical regenerated material performing the function of the lost dura mater.