Multilevel
laminectomy in children has a significant rate of postoperative spinal
deformity. To decrease the incidence of this complication, the use of osteoplastic
laminotomy is advocated to minimise the risk of spinal
deformity by preserving the normal architecture of the spine. In this retrospective study, a 10-year series of a paediatric population undergoing multilevel osteoplastic
laminotomy is reviewed to determine the incidence, especially in contrast to
laminectomies, and to identify factors that affect the occurrence of spinal column
deformity. Seventy patients (mean age 4.2 years) underwent multilevel osteoplastic
laminotomy for congenital anomalies or removal of spinal tumours. All patients had a clinical and radiographic examination preoperatively, 12 months postoperatively and at follow-up. Mean follow-up was 5.3 years (range 3-12.6 years). Nineteen patients (27%) had a new or progressive spinal
deformity. There was an increased incidence in patients who had surgery for spinal tumours (P<0.05), surgery of the cervical spine (<0.01), and who had more than five levels of the spine included (P<0.05). A review of the literature on children with multilevel
laminectomy (n=330), the incidence of spinal
deformity found a significantly higher (46%) compared to our study group. This study demonstrates that osteoplastic
laminotomy was found to be very effective in decreasing the incidence of spinal
deformities after spinal-canal surgery for spinal-cord tumours or congenital anomalies in children and adolescents. The choice of an anatomical reconstructive surgical technique such as osteoplastic
laminotomy seems to be essential to minimise secondary problems due to the surgical technique itself. Nevertheless, growing patients should be followed up for several years after the initial operation for early detection and consequent management of any possible
deformity of the spinal column.