• Hermanni Haapala, Antti J Saarinen, Anne Salonen, and Ilkka Helenius.
• Department of Pediatric and Adolescent Surgery, Pediatric Clinic and Pediatric Research Centre, Tampere University Hospital, Tampere, Finland.
• Spine. 2020 Dec 1; 45 (23): E1604-E1614.

Study DesignRetrospective review of consecutive series of patients treated at two institutions.ObjectiveThe aim of this study was to compare the health-related quality of life (HRQoL) and surgical outcomes of Shilla growth guidance and magnetically controlled growing rod (MCGR) treatment in patients with syndromic and neuromuscular early-onset scoliosis (EOS).Summary Of Background DataKnowledge of the outcomes of Shilla instrumentation is limited.MethodsWe identified 13 children treated with Shilla and 18 children treated with MCGR with syndromic or neuromuscular EOS (major curve ≥45 degree) before the age of 10 years with minimum 2-year follow-up. Outcome parameters included clinical data, radiographic as well as HRQoL outcomes (EOSQ-24 questionnaire).ResultsMean preoperative major curves were 64 degree (range, 45-108 degree) in the Shilla group and 58 degree (range, 45-85 degree) in the MCGR group (P = 0.151). At final follow-up, mean major curves were 31 degree (range, 9.4-54 degree ) and 30 degree (range, 16-53 degree), respectively (P = 0.392). The mean major curve correction was 45% in the Shilla group and 48% in the MCGR group during the follow-up (P = 0.383). Spinal (T1-S1) and T1-T12 growth were significantly better (P = 0.006 and 0.042) in the MCGR than in the Shilla group during the distraction period. At final follow-up, 11 (85%) children in the Shilla group and 17 (94%) in the MCGR group had achieved T1-T12 length of ≥18 cm (P = 0.202). There were significantly more surgical procedures in the MCGR group (mean 2.6 vs. 1.4, P = 0.034) with no difference in the number of complications (P = 0.768). EOSQ24 domains were similar at final follow-up.ConclusionShilla growth guidance provided similar correction of spinal deformity, equal number of complications, but with significantly less surgical procedures in patients treated for EOS when compared with MCGR instrumentation. MCGR provided with slightly better spinal growth during the distraction period. There were no significant differences between the quality of life assessments.Level Of Evidence3.

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