The invention relates to the use of a resorbable crosslinked form stable composition comprising a composite layer of collagen material and inorganic ceramic particles containing 1.5 to 3.5 weight parts of inorganic ceramic for 1 weight part of collagen material, sandwiched between two layers of elastic pretensed collagen material, the collagen material comprising 50-100 % (w/w) collagen and 0-50 % (w/w) elastin, for preparing a resorbable crosslinked form stable membrane for use in human tissue regeneration outside the oral cavity, notably in the craniofacial region, in particular in the orbital cavity or nasal area, and the cervical, thoracic, lumbar or sacral region of the spine.
