Hemivertebrae, being one ofthe leading causes of congenital scoliosis following unilateral unsegmented bars, may change in number, localization and type. Especially fully segmented ones with lumbosacral localizations lead to lumbar take-off and secondary non-structural curves which detoriate progressively intra-spinal and other congenital anomalies must be carefully evaiuated in order to avoid any kind of possible neurological injury, before planning the treatment schedule.
We are going to present a patient, 12 years of age who admitted to our ciinic with the complaints of left knee pain and iimp. Her routine evaiuation reveaied a tumber scoliosis of 38° with a fully segmented L4 hemivertebra. Tethered cord was apparent on the M.R.I. Patient had no abnormal neurological findings other than tight hamstrings on the left side.
Surgical treatment is planned and at first a posterior approach was utilized for the release of the tethered cord and removal of posterior elements of the hemivertebra. İn a week an anterior procedure is combined excising the remaining corpus with anterior fusion and instrumentation (Z-Plate).
At the post-operative 16th month, the curve was reduced to 6° and there was no complication.
Keywords: Scoliosis, Congenital, Hemivertebrae, Two Stage resection.