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Updated: Dec 9, 2025

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Primary lumbar decompression using ultrasonic bone curette compared to conventional technique.

Richard D C Moon1,2, Nisaharan Srikandarajah1, Simon Clark1

  • 1The Walton Centre NHS Foundation Trust, Liverpool, UK.

British Journal of Neurosurgery
|September 15, 2020
PubMed
Summary
This summary is machine-generated.

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The ultrasonic bone curette (Bone Scalpel) reduces intra-operative blood loss in primary lumbar decompression compared to conventional methods. Patient outcomes and safety profiles were comparable between the techniques.

Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Surgical Techniques

Background:

  • The ultrasonic bone curette (Bone Scalpel) is an emerging technology for bony dissection in neurosurgery.
  • Primary lumbar decompression for degenerative disease is a common spinal procedure.

Purpose of the Study:

  • To compare the efficacy and safety of the ultrasonic bone curette versus conventional techniques for primary lumbar decompression.
  • To evaluate intra-operative blood loss and patient-reported outcomes.

Main Methods:

  • Retrospective cohort study using Spine Tango Registry data (2014-2016).
  • Age and gender-matched cohorts comparing bone scalpel and conventional techniques for primary lumbar decompression.
  • Analysis of intra-operative blood loss and Core Outcomes Measures Index (COMI) at 24 months.
Keywords:
Ultrasonic bone curettedegenerative diseaselaminectomylumbar decompressionpatient reported outcome measuresspine surgery

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Main Results:

  • Significantly reduced intra-operative blood loss (>100 ml) in the bone scalpel cohort (16.1%) compared to conventional (34.4%, p=0.04).
  • No significant difference in iatrogenic dural breach incidence between cohorts (9.7% vs 16.1%, p=0.27).
  • Comparable pre-operative and 24-month post-operative Core Outcomes Measures Index (COMI) scores between groups.

Conclusions:

  • The ultrasonic bone curette is associated with decreased intra-operative blood loss during primary lumbar decompression.
  • The Bone Scalpel offers a comparable safety profile and equivalent patient-reported outcomes to conventional methods.
  • Ultrasonic bone curette represents a viable alternative for bony dissection in lumbar decompression surgery.