AI Article Synopsis
- Hydroxyapatite bone cement is a widely used material for reconstructing various bony surgical defects, but complications can arise from its use.
- Two cases are reported where patients experienced resorption of the hydroxyapatite cement and seroma formation after retrosigmoid craniotomy, presenting symptoms similar to a CSF leak.
- The problematic cement was removed in both instances, resulting in no further issues, leading to the recommendation against using hydroxyapatite for retrosigmoid craniotomies due to high complication rates.
Article Abstract
Hydroxyapatite bone cement is a versatile material used to reconstruct many types of bony surgical defects, and its applications have been widely reported in the literature. Still, complications of its use do occur. We describe 2 cases of hydroxyapatite resorption and subsequent seroma formation in patients who had undergone retrosigmoid craniotomy. The presentation in both cases mimicked a CSF leak. In both cases, the fragmented cement was removed, and the patient experienced no further complications. While hydroxyapatite cement is a highly useful product for the reconstruction of some craniofacial or skull base defects, we believe that it should not be used for the reconstruction of retrosigmoid/suboccipital craniotomies because it is associated with unacceptably high complication rates. Surgeons must exercise caution in selecting candidates for hydroxyapatite reconstruction of cranial defects.
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