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Journal of Craniovertebral Junction and Spine
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Year : 2021  |  Volume : 12  |  Issue : 4  |  Page : 432-436

Correction of degenerative lumbar coronal deformity using asymmetrical interbody cages: Surgical technique and case report

1 Division of Spine, Department of Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore
2 Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore

Correspondence Address:
Jacob Yoong-Leong Oh
Division of Spine, Department of Orthopaedic Surgery, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcvjs.jcvjs_121_21

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In adult degenerative spondylosis, much emphasis has been placed upon recognizing the sagittal plane deformity and techniques to restore this alignment. However, the coronal plane deformity has not received much attention and, if left uncorrected, may lead to poorer outcomes. Here, we present a case of degenerative lumbar scoliosis with a rigid coronal malalignment secondary to a dysplastic sacrum. We performed staged T11–pelvis lateral and posterior approach to address this deformity. For the first stage, a lateral lumbar interbody fusion was performed at the concavity of the curve from L3 to L5. For the second stage, through posterior approach, a long-segment instrumentation from T11 to pelvis was done along with bilateral asymmetrical posterior lumbar interbody fusion of L5–S1 to level the L5 vertebra at the hemi-curve, thereby leveling the coronal deformity. We propose, for cases with a rigid coronal deformity due to bony dysplasia, correction through the disc space using asymmetrical interbody cages as in this case offers the surgeon an option to achieve a desired correction, without the need for vertebral osteotomy.

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