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Worm PV, Ferreira NP, Faria MB, et al. Comparative study between cortical bone graft versus bone dust for reconstruction of cranial burr holes. Surg Neurol Int. 2010;1:91doi: 10.4103/2152-7806.74160.
Worm, P. V., Ferreira, N. P., Faria, M. B., Ferreira, M. P., Kraemer, J. L., & Collares, M. V. (2010). Comparative study between cortical bone graft versus bone dust for reconstruction of cranial burr holes. Surgical neurology international, 191. https://doi.org/10.4103/2152-7806.74160
Worm, Paulo V, et al. "Comparative study between cortical bone graft versus bone dust for reconstruction of cranial burr holes." Surgical neurology international vol. 1 (2010): 91. doi: https://doi.org/10.4103/2152-7806.74160
Worm PV, Ferreira NP, Faria MB, Ferreira MP, Kraemer JL, Collares MV. Comparative study between cortical bone graft versus bone dust for reconstruction of cranial burr holes. Surg Neurol Int. 2010 Dec 22;1:91. doi: 10.4103/2152-7806.74160. PMID: 21206899; PMCID: PMC3011827.
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Surg Neurol Int. 2010 Dec 22;1:91. doi: 10.4103/2152-7806.74160.

Comparative study between cortical bone graft versus bone dust for reconstruction of cranial burr holes.

Surgical neurology international

Paulo V Worm, Nelson P Ferreira, Mario B Faria, Marcelo P Ferreira, Jorge L Kraemer, Marcus V M Collares

Affiliations

  1. Department of Neurosurgery, Hospital São José, Complexo Hospitalar Santa Casa, Brazil.

PMID: 21206899 PMCID: PMC3011827 DOI: 10.4103/2152-7806.74160

Abstract

BACKGROUND: As a consequence of the progressive evolution of neurosurgical techniques, there has been increasing concern with the esthetic aspects of burr holes. Therefore, the objective of this study was to compare the use of cortical bone graft and bone dust for correcting cranial deformities caused by neurosurgical trephines.

METHODS: Twenty-three patients were enrolled for cranial burr hole reconstruction with a 1-year follow-up. A total of 108 burr holes were treated; 36 burr holes were reconstructed with autogenous cortical bone discs (33.3%), and the remaining 72 with autogenous wet bone powder (66.6%). A trephine was specifically designed to produce this coin-shaped bone plug of 14 mm in diameter, which fit perfectly over the burr holes. The reconstructions were studied 12 months after the surgical procedure, using three-dimensional quantitative computed tomography. Additionally, general and plastic surgeons blinded for the study evaluated the cosmetic results of those areas, attributing scores from 0 to 10.

RESULTS: The mean bone densities were 987.95 ± 186.83 Hounsfield units (HU) for bone fragment and 473.55 ± 220.34 HU for bone dust (P < 0.001); the mean cosmetic scores were 9.5 for bone fragment and 5.7 for bone dust (P < 0.001).

CONCLUSIONS: The use of autologous bone discs showed better results than bone dust for the reconstruction of cranial burr holes because of their lower degree of bone resorption and, consequently, better cosmetic results. The lack of donor site morbidity associated with procedural low cost qualifies the cortical autograft as the first choice for correcting cranial defects created by neurosurgical trephines.

Keywords: Autograft; bone dust; cranioplasty; surgery

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