Hydroxyapatite cement cranioplasty in translabyrinthine acoustic neuroma surgery-update.

OBJECTIVE

To update the outcome of hydroxyapatite cement cranioplasty in translabyrinthine acoustic neuroma (TLAN) surgery.

PATIENTS: One hundred eight previously reported patients undergoing abdominal fat graft reconstruction versus hydroxyapatite cement cranioplasty with additional 4-year follow up. Ninety additional patients undergoing a uniform technique of hydroxyapatite cement cranioplasty after TLAN.

INTERVENTION(S): After TLAN, strips of abdominal fat are placed through the dural opening and medial to the level of the mastoid antrum, filling the lateral mastoid cavity.

MAIN OUTCOME MEASURE(S): Cerebrospinal fluid (CSF) leaks and wound complications.

RESULTS

No additional CSF leaks or wound complications were identified in the patients included in the previous report. In the new series of 90 consecutive patients, there was one CSF leak.

CONCLUSION

Hydroxyapatite cranioplasty is a reliable method to avoid CSF leaks after TLAN surgery.