ArticleClinics in orthopedic surgery2025
The Effect of the Thoracolumbar Junction on Spinopelvic Parameters in Lenke 1 Adolescent Idiopathic Scoliosis with Selective Fusion.
Article in Clinics in orthopedic surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: To compare the effect of the thoracolumbar junction angle (TLJ) on postoperative changes in both sagittal spinal and spinopelvic parameters in patients with Lenke type 1 adolescent idiopathic scoliosis (AIS) undergoing selective fusion surgery. Methods: We retrospectively reviewed 42 patients with Lenke 1 AIS who were younger than 18 years of age and underwent posterior selective fusion in our center between 2010 and 2020. Pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), thoracic kyphosis (TK), TLJ, cervical lordosis (CL), and sagittal vertical axis were evaluated using the Surgimap (https://www.surgimap.com/) measurement system. Patients were divided into 2 groups: kyphotic and lordotic TLJ. Results: Of the 42 AIS patients, 25 (60%) had kyphotic and 17 (40%) had lordotic TLJ alignment. Both groups had a median follow-up of 10 years. In the TLJ kyphotic group, PT was lower in the preoperative, immediate postoperative, and final follow-up examinations compared to the TLJ lordotic group, while TK was higher compared to the TLJ lordotic group ( Conclusions: The fact that the PI and PT values of patients with thoracolumbar junction kyphotic were lower than those of the TLJ lordotic group should suggest that patients may have less compensatory abilities in sagittal alignment in advanced ages, and surgeons should consider this situation when applying spinal fusion. In addition, it was observed that the cervical spine in TLJ lordotic patients was prone to kyphosis to provide sagittal alignment.
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