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Radiology. 2002 Mar;222(3):737-41.

Unilateral transpedicular percutaneous vertebroplasty: initial experience.

Author information

1
Department of Radiology, University of Virginia Health Services, Box 800170, Charlottesville, VA 22908, USA.

Abstract

PURPOSE:

To compare the radiographic and clinical outcomes of a unipediculate approach with those of standard bipediculate vertebroplasty.

MATERIALS AND METHODS:

Retrospective review of percutaneous vertebroplasties yielded 18 vertebrae in 17 patients that were treated with a standard bipediculate approach and 57 vertebrae in 32 patients that were treated with a modified unipediculate approach. Anteroposterior radiographs obtained after the procedure were viewed to calculate the percentage of cement opacification in both vertebral halves, and mean values were compared between uni- and bipediculate approaches by using a two-tailed Student t test. Clinical outcomes, including pain relief and change in pain medication requirements, were compared in the two groups by using the chi(2) or Fisher exact test.

RESULTS:

With the unipediculate approach, filling across the midline was achieved in 55 (96%) of 57 injections. Mean opacification of vertebral body halves was 83% +/- 19 (SD) and 77% +/- 16 for the bipediculate and unipediculate approaches, respectively (P =.19). Among patients with available follow-up data, 16 (94%) of 17 patients who underwent the bipediculate procedure and 28 (88%) of 32 patients who underwent the unipediculate procedure achieved adequate pain relief (P =.65) with mean decreases in pain severity of 7.3 +/- 3.1 and 6.6 +/- 2.9, respectively.

CONCLUSION:

Use of a unipediculate approach in percutaneous vertebroplasty allows filling of both vertebral halves from a single puncture site with no statistically significant difference in clinical outcome from that of bipediculate vertebroplasty.

PMID:
11867793
DOI:
10.1148/radiol.2223010718
[Indexed for MEDLINE]

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