SURGICAL TREATMENT OF III–IV GRADE SCOLIOSIS WITH PLATE ENDOCORRECTOR

Objectives. To analyze the efficacy of surgery using the original plate endocorrectors for III–IV grade idiopathic progressing scoliosis. Materials and methods. Two-plate endocorrector was used in surgical treatment of 380 patients. Out of them 171 patients at the age of 13–15 years had vertebral body apophysis ossification of stage 2–3 according to Risser’s test. Scoliosis was congenital in 12 patients (3.2 %) and idiopathic in 368 patients (96.8 %). The smallest coronal angle of curve according to Cobb was 40°, the largest one – 145°. Surgery of severe IV grade scoliotic deformity (curve angle of 60–90°) was performed in 178 patients. Results. Patients with non-removable instrumentation show the maintenance of post-surgical correction within 75–80% in long-term follow-up period (up to 9 years). Complications related to the plate endocorrector were observed in 9.8 % of cases: aseptic serous reaction induced by instability of the construct elements – in 3.7 %, plate breakage and release of endocorrector locking – in 5.3 %. Conclusion. Plate endocorrector of the third generation provides effective three-dimensional deformity correction for idiopathic III–IV grade scoliosis. The endocorrector does not prevent further spine growth in children after surgery.