Introduction:

Few areas of orthopedic surgery have had such important technical changes in recent decades as in corrective spinal surgery. Fundamental changes have come with the new spinal instrumentation systems, which have been substantially modified and improved to facilitate three-dimensional correction of the deformity and provide secure spinal fixation, correction and stability.

Objective:

To evaluate the results achieved with the spinal instrumentation systems used in the correction of thoracolumbar kyphosis due to ankylosing spondylitis.

Methods:

A descriptive, retrospective and longitudinal study was carried out on 16 patients with thoracolumbar kyphosis due to ankylosing spondylitis operated on with the pedicle subtraction osteotomy technique and instrumented with Luque-type pedicle and sublaminar systems, in the Orthopedics service at Hermanos Ameijeiras Surgical Clinical Hospital, from March 2001 to March 2021.

Results:

All the patients were male, white skin color and average age of 39 years. More than 80% correction was achieved in the sagittal profile and an average of 34.3° per osteotomy, without major neurological complications. Good functional results were obtained, with high degree of patient satisfaction and improvement in their quality of life.

Conclusions:

The use of both spinal instrumentation systems is effective in maintaining the correction of thoracolumbar kyphosis due to ankylosing spondylitis.

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