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The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manu script met the ICMJE "uniform requirements" for biomedical papers. [ABSTRACT FROM AUTHOR]

Introduction: Cranioplasty with autologous bone flap is indicated in patients who have undergone decompressive craniectomy. Although it is an elective procedure, literature data indicate complication rates of up to 30%. The aim of this paper is to present our experience with cranioplasty with the patients own bone flap stored subcutaneously in the mesogastrium., Methods: We retrospectively analyzed a set of 92 patients who had undergone cranioplasty after decompressive craniectomy using autologous graft preserved subcutaneously in the mesogastrium. The patients were clinically and radiologically examined before the surgery, and six weeks and one year after surgery. We evaluated the incidence of acute complications - wound hematoma, and late complications - infection and bone resorption. The postoperative cosmetic effect and patient discomfort from the stored bone flap also constituted an important aspect., Results: The frequency of complications in our study group was 25%. Late complications were the most common, occurring with a frequency of 13%. These were mainly resorption of the bone flap (4.3%) and infectious complications (4.3%). Acute complications occurred with a frequency of 10.9% in our patient group. The most serious complication was cerebral edema of unknown origin leading to death of the patient. Unsatisfactory cosmetic effect as well as discomfort at the site where the flap was stored occurred in two cases., Conclusions: Cranioplasty is associated with a higher risk of complications in comparison with other elective procedures. Nevertheless, we regard cranioplasty with subcutaneously preserved bone flap as an inexpensive and suitable alternative to cryopreservation or alloplastic materials.Key words: cranioplasty complications of cranioplasty autologous cranioplasty decompressive craniectomy.