A Lumbar Spinal Osteoid Osteoma Associated with Kyphoscoliosis, Head Drop, and Pelvic Obliquity: A Case Report.

CASE: A 19-year-old man presented with a progressive kyphoscoliosis deformity, pelvic obliquity, neck flexion, and bilateral lower limb contractures. Evaluation showed previously undiagnosed spinal osteoid osteoma. The patient underwent surgical resection with instrumentation of L3-L4. At the 2-year follow-up, the patient showed almost complete resolution of his complex spine deformity and improvement in radiological parameters.

CONCLUSION

The current case described the most severe thoracolumbar deformity secondary to an osteoid osteoma of the lumbar spine in the literature. An intralesional curettage with short, instrumented fusion showed satisfactory outcomes without the need for further deformity correction.