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Blood Loss Reduction During Surgical Correction of Adolescent Idiopathic Scoliosis Utilizing an Ultrasonic Bone Scalpel

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Abstract

Study Design

Retrospective review of prospectively collected data.

Objectives

To evaluate blood loss associated with posterior spinal fusion in adolescent idiopathic scoliosis patients performed with and without the use of an ultrasonic bone scalpel (UBS).

Summary of Background Information

After using an ultrasonic-powered bone-cutting device with recent Food and Drug Administration approval for use in the spine, the authors perceived a reduction in bone bleeding associated with the cut boney surfaces.

Methods

The first 20 patients with adolescent idiopathic scoliosis who underwent posterior spinal fusion using the UBS by a single surgeon were compared with 2 control groups: 1) the 20 most recent prior cases of the same surgeon before beginning use of the bone scalpel; and 2) 20 cases of the same surgeon before using the bone scalpel matched based on Cobb angle magnitudes. Both cases and controls had Ponte-type posterior apical releases; none had an anterior procedure. Patient demographic and surgical data were analyzed using analysis of variance (p <.05).

Results

Preoperatively, the UBS group was similar to both control groups in terms of primary and secondary curve magnitudes, number of levels fused, number of levels with Ponte release, antifibrinolytic use, and patient age (p >.05). The UBS group had significantly less estimated blood loss (EBL) (550 ± 359 mL), Cell Saver blood transfused (94 ± 146 mL), and EBL per level fused (48 ± 30 mL) than the most recent controls (EBL: 799 ± 376 mL; Cell Saver: 184 ± 122 mL; EBL/level fused: 72 ± 28 mL) and Cobb-matched controls (EBL: 886 ± 383 mL; Cell Saver: 198 ± 115 mL; EBL/level fused: 78 ± 30 mL) (p <.05). Surgical times were equivalent and there were no dural tears in any group.

Conclusions

The use of an ultrasonic bone scalpel to perform the bone cuts associated with facetectomies and apical Ponte-type posterior releases resulted in significantly less bleeding compared with cuts made with standard osteotomes and rongeurs, limiting overall blood loss by 30% to 40%.

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Authors and Affiliations

Authors

Corresponding author

Correspondence to Peter O. Newton MD.

Additional information

Author disclosures: CEB (grants from Setting Scoliosis Straight Foundation); TPB (grants from Setting Scoliosis Straight Foundation); PON (grant from Setting Scoliosis Straight Foundation; consulting fee/honorarium from DePuy Spine; support for travel to meetings from DePuy Spine; board membership with POSNA, Harms Study Group Foundation, Scoliosis Research Society, Children’s Specialist Foundation; consultancy for DePuy Spine, Stanford University; employment with Children’s Specialists of San Diego; expert testimony for NorCal, law firm Carroll, Kelly, Trotter, Franzen, and McKenna, law firm Smith, Haughey, Rice and Roegge; grants from National Institutes of Health (Grant R21AR049587), Orthopaedic Research and Education Foundation, POSNA, SRS, Harms Study Group Foundation, DePuy Synthes Spine, Axial Biotech, Biospace/Med/EOS Imaging; payment for lectures including service on speakers bureaus from DePuy Spine; patents from DePuy Synthes Spine; royalties from DePuy Synthes Spine, Thieme Publishing; payment for development of educational presentations from DePuy Synthes Spine; stock/stock options from Nuvasive).

This study was supported in part by a grant from the Setting Scoliosis Straight Foundation.

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Bartley, C.E., Bastrom, T.P. & Newton, P.O. Blood Loss Reduction During Surgical Correction of Adolescent Idiopathic Scoliosis Utilizing an Ultrasonic Bone Scalpel. Spine Deform 2, 285–290 (2014). https://doi.org/10.1016/j.jspd.2014.03.008

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  • DOI: https://doi.org/10.1016/j.jspd.2014.03.008

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