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vol.19 issue2INFLUENCE OF THE MISDEF ALGORITHM ON THE THERAPEUTIC DECISION FOR VERTEBRAL DEFORMITY IN THE ADULTT1 PELVIC ANGLE IN IMPROVEMENT OF PAIN IN HIGH-GRADE LUMBAR SPONDYLOLISTHESIS author indexsubject indexarticles search
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Coluna/Columna

Print version ISSN 1808-1851On-line version ISSN 2177-014X

Abstract

NANNI, FELIPE DE NEGREIROS; VIALLE, EMILIANO NEVES  and  BRUNET, MARVIN DURANTE. RADIOGRAPHIC ANALYSIS OF THE RESULTS OF ANTERIOR INTERNODY ARTHRODESIS ON THE SAGITTAL LUMBOPELVIC PARAMETERS. Coluna/Columna [online]. 2020, vol.19, n.2, pp.104-107.  Epub May 15, 2020. ISSN 2177-014X.  https://doi.org/10.1590/s1808-185120201902224026.

Objective

The objective of this study is to analyze the radiographs of patients who underwent anterior lumbar interbody fusion (ALIF), to compare the values of the lumbopelvic measurements, and to quantify improvements in these parameters achieved through this technique.

Methods

The radiographs of 42 patients, all submitted to ALIF with a 12° interbody device, were evaluated from a database at a single center. The pelvic incidence, pelvic tilt, sacral slope, lumbar lordosis, segmental lordosis, and regional lordosis angles of each patient were measured in pre- and postoperative radiographs.

Results

We observed a discreet change in the pelvic parameters and a marked increase in regional lordosis with a mean increase of 5.8° (p>0.001). Segmental lordosis also showed a mean increase of 2.43°. The gain in segmental lordosis was even higher in patients with degenerative spondylolisthesis and when the operated level was L5-S1.

Conclusions

The ALIF technique in the lumbar spine is capable of significantly increase the lordosis of a segment, whether at one or two levels. Greater improvement in the lumbopelvic parameters was observed it the procedures performed in level L5-S1 and in cases that presented spondylolisthesis.

Keywords : Lordosis; Arthrodesis; Radiography.

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