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Reduction of spondylolisthesis and sagittal balance correction by anterior lumbar interbody fusion (ALIF)



Long time recognized as a cause of lumbar stenosis, degenerative spondylolisthesis has an evolution in interrelation with sagittal balance. This study aimed to assess the role of ALIF in correcting the sagittal balance in patients with degenerative spondylolisthesis.

Material and methods

Twenty patients aged between 47 and 70 years were operated between July 2011 and September 2014 for degenerative spondylolisthesis by ALIF. The pre-operative and post-operative valid standing full spine radiographs were reviewed retrospectively. Clinical and radiological evaluations were conducted pre-operatively and postoperatively at one year and five years.


Lumbar lordosis (LL) was measured to 41.16 ± 14.25° pre-operatively and 47.27 ± 11.25° post-operatively (p > 0.05). At one year was 49.76 ± 13.31° and at five years 46.93 ± 9.26° (p > 0.05). Mean gain of lordosis after ALIF at index level was calculated to 8 ± 1.6° [4–12°].


ALIF offers a good reduction of the slipped vertebra providing good conditions for fusion and is an efficient surgical technique to recreate the sagittal spine balance.

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We thank to Andreea Isabela Cuciureanu for the drawings which she made to illustrate this study.

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Correspondence to Iulian Popa.

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Caprariu, R., Popa, I., Oprea, M. et al. Reduction of spondylolisthesis and sagittal balance correction by anterior lumbar interbody fusion (ALIF). International Orthopaedics (SICOT) 45, 997–1001 (2021).

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  • Spinal stenosis
  • Spinopelvic parameters
  • Intervertebral cage
  • Pelvic retroversion