Thermological study of drilling bone tissue with a high-speed drill

Soichiro Kondo, Yoshikazu Okada, Hiroshi Iseki, Tomokatsu Hori, Kintomo Takakura, Akira Kobayashi, Hirokazu Nagata

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

OBJECTIVE: To perform a detailed quantitative analysis of the effect of intermittent drilling and irrigation to lower the temperature during high- speed drilling. METHODS: We examined the thermal changes for 15 bone flaps while drilling a 7- x 7-mm area for 18 seconds and a specific point for 9 seconds, under the following conditions: continuous or intermittent drilling; with a fluted steel or a diamond ball cutter; without or with irrigation, with room temperature or cold (8°C) Ringer solution. RESULTS: The maximum temperature during continuous drilling with a diamond cutter (or steel cutter) was 82.4 ± 1.3°C (55.2 ± 1.0°C) without irrigation, 42.5 ± 1.2°C (35.4 ± 0.9°C) with room temperature Ringer irrigation, and 22.5 ± 1.4°C (21.6 ± 0.3°C) with cold Ringer irrigation, whereas that during intermittent drilling was 66.1 ± 1.2°C (35.6 ± 0.8°C), 35.0 ± 0.8°C (25.4 ± 0.7°C), and 21.5 ± 0.6°C (21.8 ± 0.4°C), respectively. During continuous drilling of a specific point, the radius of the concentric isothermal line for 43°C (thermal threshold for neurons) was 3.6 ± 0.8 mm with a steel cutter, and it was 8.1 ± 0.3 mm with a diamond cutter. The radius was 4.2 ± 0.8 mm during intermittent drilling with a diamond cutter, and it was 4.0 ± 0.1 mm during continuous drilling with room temperature Ringer irrigation. Intermittent drilling with cold Ringer irrigation kept the temperature, even at the center of the drilled area, below 20°C. CONCLUSION: Intentional intermittent drilling with irrigation reduces temperature elevation and its expansion. These procedures are necessary for safe drilling, especially with a diamond burr. Although cold irrigation can minimize temperature elevation, its substantial effect on nerves or other structures needs to be elucidated.

Original languageEnglish
Pages (from-to)1162-1168
Number of pages7
JournalNeurosurgery
Volume46
Issue number5
Publication statusPublished - 2000 May
Externally publishedYes

Fingerprint

Diamond
Bone and Bones
Temperature
Steel
Hot Temperature
Neurons

Keywords

  • Cranial base surgery
  • Experimental
  • Heat injury
  • High-speed drill
  • Instrumentation
  • Minimally invasive operation
  • Skull base surgery
  • Thermology

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

Cite this

Kondo, S., Okada, Y., Iseki, H., Hori, T., Takakura, K., Kobayashi, A., & Nagata, H. (2000). Thermological study of drilling bone tissue with a high-speed drill. Neurosurgery, 46(5), 1162-1168.

Thermological study of drilling bone tissue with a high-speed drill. / Kondo, Soichiro; Okada, Yoshikazu; Iseki, Hiroshi; Hori, Tomokatsu; Takakura, Kintomo; Kobayashi, Akira; Nagata, Hirokazu.

In: Neurosurgery, Vol. 46, No. 5, 05.2000, p. 1162-1168.

Research output: Contribution to journalArticle

Kondo, S, Okada, Y, Iseki, H, Hori, T, Takakura, K, Kobayashi, A & Nagata, H 2000, 'Thermological study of drilling bone tissue with a high-speed drill', Neurosurgery, vol. 46, no. 5, pp. 1162-1168.
Kondo S, Okada Y, Iseki H, Hori T, Takakura K, Kobayashi A et al. Thermological study of drilling bone tissue with a high-speed drill. Neurosurgery. 2000 May;46(5):1162-1168.
Kondo, Soichiro ; Okada, Yoshikazu ; Iseki, Hiroshi ; Hori, Tomokatsu ; Takakura, Kintomo ; Kobayashi, Akira ; Nagata, Hirokazu. / Thermological study of drilling bone tissue with a high-speed drill. In: Neurosurgery. 2000 ; Vol. 46, No. 5. pp. 1162-1168.
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abstract = "OBJECTIVE: To perform a detailed quantitative analysis of the effect of intermittent drilling and irrigation to lower the temperature during high- speed drilling. METHODS: We examined the thermal changes for 15 bone flaps while drilling a 7- x 7-mm area for 18 seconds and a specific point for 9 seconds, under the following conditions: continuous or intermittent drilling; with a fluted steel or a diamond ball cutter; without or with irrigation, with room temperature or cold (8°C) Ringer solution. RESULTS: The maximum temperature during continuous drilling with a diamond cutter (or steel cutter) was 82.4 ± 1.3°C (55.2 ± 1.0°C) without irrigation, 42.5 ± 1.2°C (35.4 ± 0.9°C) with room temperature Ringer irrigation, and 22.5 ± 1.4°C (21.6 ± 0.3°C) with cold Ringer irrigation, whereas that during intermittent drilling was 66.1 ± 1.2°C (35.6 ± 0.8°C), 35.0 ± 0.8°C (25.4 ± 0.7°C), and 21.5 ± 0.6°C (21.8 ± 0.4°C), respectively. During continuous drilling of a specific point, the radius of the concentric isothermal line for 43°C (thermal threshold for neurons) was 3.6 ± 0.8 mm with a steel cutter, and it was 8.1 ± 0.3 mm with a diamond cutter. The radius was 4.2 ± 0.8 mm during intermittent drilling with a diamond cutter, and it was 4.0 ± 0.1 mm during continuous drilling with room temperature Ringer irrigation. Intermittent drilling with cold Ringer irrigation kept the temperature, even at the center of the drilled area, below 20°C. CONCLUSION: Intentional intermittent drilling with irrigation reduces temperature elevation and its expansion. These procedures are necessary for safe drilling, especially with a diamond burr. Although cold irrigation can minimize temperature elevation, its substantial effect on nerves or other structures needs to be elucidated.",
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AU - Kobayashi, Akira

AU - Nagata, Hirokazu

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N2 - OBJECTIVE: To perform a detailed quantitative analysis of the effect of intermittent drilling and irrigation to lower the temperature during high- speed drilling. METHODS: We examined the thermal changes for 15 bone flaps while drilling a 7- x 7-mm area for 18 seconds and a specific point for 9 seconds, under the following conditions: continuous or intermittent drilling; with a fluted steel or a diamond ball cutter; without or with irrigation, with room temperature or cold (8°C) Ringer solution. RESULTS: The maximum temperature during continuous drilling with a diamond cutter (or steel cutter) was 82.4 ± 1.3°C (55.2 ± 1.0°C) without irrigation, 42.5 ± 1.2°C (35.4 ± 0.9°C) with room temperature Ringer irrigation, and 22.5 ± 1.4°C (21.6 ± 0.3°C) with cold Ringer irrigation, whereas that during intermittent drilling was 66.1 ± 1.2°C (35.6 ± 0.8°C), 35.0 ± 0.8°C (25.4 ± 0.7°C), and 21.5 ± 0.6°C (21.8 ± 0.4°C), respectively. During continuous drilling of a specific point, the radius of the concentric isothermal line for 43°C (thermal threshold for neurons) was 3.6 ± 0.8 mm with a steel cutter, and it was 8.1 ± 0.3 mm with a diamond cutter. The radius was 4.2 ± 0.8 mm during intermittent drilling with a diamond cutter, and it was 4.0 ± 0.1 mm during continuous drilling with room temperature Ringer irrigation. Intermittent drilling with cold Ringer irrigation kept the temperature, even at the center of the drilled area, below 20°C. CONCLUSION: Intentional intermittent drilling with irrigation reduces temperature elevation and its expansion. These procedures are necessary for safe drilling, especially with a diamond burr. Although cold irrigation can minimize temperature elevation, its substantial effect on nerves or other structures needs to be elucidated.

AB - OBJECTIVE: To perform a detailed quantitative analysis of the effect of intermittent drilling and irrigation to lower the temperature during high- speed drilling. METHODS: We examined the thermal changes for 15 bone flaps while drilling a 7- x 7-mm area for 18 seconds and a specific point for 9 seconds, under the following conditions: continuous or intermittent drilling; with a fluted steel or a diamond ball cutter; without or with irrigation, with room temperature or cold (8°C) Ringer solution. RESULTS: The maximum temperature during continuous drilling with a diamond cutter (or steel cutter) was 82.4 ± 1.3°C (55.2 ± 1.0°C) without irrigation, 42.5 ± 1.2°C (35.4 ± 0.9°C) with room temperature Ringer irrigation, and 22.5 ± 1.4°C (21.6 ± 0.3°C) with cold Ringer irrigation, whereas that during intermittent drilling was 66.1 ± 1.2°C (35.6 ± 0.8°C), 35.0 ± 0.8°C (25.4 ± 0.7°C), and 21.5 ± 0.6°C (21.8 ± 0.4°C), respectively. During continuous drilling of a specific point, the radius of the concentric isothermal line for 43°C (thermal threshold for neurons) was 3.6 ± 0.8 mm with a steel cutter, and it was 8.1 ± 0.3 mm with a diamond cutter. The radius was 4.2 ± 0.8 mm during intermittent drilling with a diamond cutter, and it was 4.0 ± 0.1 mm during continuous drilling with room temperature Ringer irrigation. Intermittent drilling with cold Ringer irrigation kept the temperature, even at the center of the drilled area, below 20°C. CONCLUSION: Intentional intermittent drilling with irrigation reduces temperature elevation and its expansion. These procedures are necessary for safe drilling, especially with a diamond burr. Although cold irrigation can minimize temperature elevation, its substantial effect on nerves or other structures needs to be elucidated.

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